LT1079ISW

FEATURES s s s s s s s s s s s LT1078/LT1079 Micropower, Dual and Quad, Single Supply, Precision Op Amps DESCRIPTIO The LT ® 1078 is a micropower dual op amp in 8-pin packages including the small outline surface mount package. The LT1079 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. ±15V specifications are also provided. Micropower performance of competing devices is achieved at the expense of seriously degrading precision, noise, speed and output drive specifications. The design effort of the LT1078/LT1079 was concentrated on reducing supply current without sacrificing other parameters. The offset voltage achieved is the lowest on any dual or quad nonchopper stabilized op amp—micropower or otherwise. Offset current, voltage and current noise, slew rate and gain bandwidth product are all two to ten times better than on previous micropower op amps. The 1/f corner of the voltage noise spectrum is at 0.7Hz, at least three times lower than on any monolithic op amp. This results in low frequency (0.1Hz to 10Hz) noise performance which can only be found on devices with an order of magnitude higher supply current. Both the LT1078 and LT1079 can be operated from a single supply (as low as one lithium cell or two Ni-Cad batteries). The input range goes below ground. The allNPN output stage swings to within a few millivolts of ground while sinking current—no power consuming pull down resistors are needed. Distribution of Input Offset Voltage (LT1078 and LT1079 in H, J, N Packages) 16 14 PERCENT OF UNITS VS = 5V, 0V TA = 25°C s Available in 8-Pin SO Package 50µA Max Supply Current per Amplifier 70µV Max Offset Voltage 180µA Max Offset Voltage in 8-Pin SO 250pA Max Offset Current 0.6µVP-P, 0.1Hz to 10Hz Voltage Noise 3pAP-P, 0.1Hz to 10Hz Current Noise 0.4µV/°C Offset Voltage Drift 200kHz Gain Bandwidth Product 0.07V/µs Slew Rate Single Supply Operation Input Voltage Range Includes Ground Output Swings to Ground while Sinking Current No Pull-Down Resistors Needed Output Sources and Sinks 5mA Load Current APPLICATIO S s s s s Battery or Solar-Powered Systems Portable Instrumentation Remote Sensor Amplifier Satellite Circuitry Micropower Sample-and-Hold Thermocouple Amplifier Micropower Filters , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO 10.1k 1M Single Battery, Micropower, Gain = 100, Instrumentation Amplifier 1M 3V (LITHIUM CELL) TYPICAL PERFORMANCE INPUT OFFSET VOLTAGE = 40µV INPUT OFFSET CURRENT = 0.2nA TOTAL POWER DISSIPATION = 240µW COMMON MODE REJECTION = 110dB (AMPLIFIER LIMITED) GAIN BANDWIDTH PRODUCT = 200kHz OUTPUT NOISE = 85µVP-P 0.1Hz TO 10Hz = 300µVRMS OVER FULL BANDWIDTH INPUT RANGE = 0.03V TO 1.8V OUTPUT RANGE = 0.03V TO 2.3V (0.3mV ≤ VIN+ – VIN– ≤ 23mV) OUTPUTS SINK CURRENT—NO PULL-DOWN RESISTORS ARE NEEDED + INVERTING INPUT – + 3 5 NONINVERTING INPUT + – – 2 A 1/2 LT1078 1 10.1k 6 8 7 OUT B 1/2 LT1078 4 LT1078/79 • TA01 U U U 12 10 8 6 4 2 0 –120 –80 –40 40 80 0 INPUT OFFSET VOLTAGE (µV) 120 1078/79 • TA02 10789fe 1 LT1078/LT1079 ABSOLUTE MAXIMUM RATINGS Supply Voltage ...................................................... ± 22V Differential Input Voltage ....................................... ± 30V Input Voltage ............... Equal to Positive Supply Voltage ............5V Below Negative Supply Voltage Output Short-Circuit Duration .......................... Indefinite Storage Temperature Range All Grades ......................................... – 65°C to 150°C PACKAGE/ORDER INFORMATION TOP VIEW V 8 OUT A 1 A –IN A 2 +IN A 3 B 6 –IN B 5 +IN B 4 7 OUT B + OUT A 1 –IN A 2 +IN A 3 V– 4 A B V – (CASE) H PACKAGE 8-LEAD TO-5 METAL CAN N8 PACKAGE 8-LEAD PDIP TJMAX = 100°C, θJA = 130°C/ W (N8) TJMAX = 150°C, θJA = 150°C/ W, θJC = 45°C/ W ORDER PART NUMBER LT1078ACN8 LT1078CN8 LT1078IN8 J8 PACKAGE 8-LEAD PDIP TJMAX = 150°C, θJA = 100°C/ W (J8) ORDER PART NUMBER LT1078ACH LT1078MH OBSOLETE PACKAGES Consider the N8 and S8 Packages for Alternate Source TOP VIEW OUT A 1 –IN A 2 +IN A 3 V+ 4 B C A D 14 OUT D 13 –IN D 12 +IN D 11 V – 10 +IN C 9 8 –IN C OUT C LT1078AMJ8 LT1078MJ8 ORDER PART NUMBER LT1079ACN LT1079CN LT1079IN TOP VIEW OUT A 1 –IN A 2 +IN A 3 V+ 4 B C A D 16 OUT D 15 –IN D 14 +IN D 13 V– 12 +IN C 11 –IN C 10 OUT C 9 NC +IN B 5 –IN B 6 OUT B 7 N PACKAGE 14-LEAD PDIP TJMAX = 110°C, θJA = 130°C/ W (N) J PACKAGE 14-LEAD CERAMIC DIP TJMAX = 150°C, θJA = 100°C/ W (J) LT1079MJ OBSOLETE PACKAGE Consider the N Packages for Alternate Source 10789fe 2 U U W WW U W (Note 1) Operating Temperature Range LT1078AM/LT1078M/ LT1079AM/LT1079M (OBSOLETE) ..... – 55°C to 125°C LT1078I/LT1079I .................................... – 40°C to 85°C LT1078AC/LT1078C/LT1078S8/ LT1079AC/LT1079C .................................... 0°C to 70°C Lead Temperature (Soldering, 10 sec).................. 300°C TOP VIEW 8 7 6 5 V+ OUT B –IN B +IN B +IN A 1 V– 2 TOP VIEW 8 A 7 6 B 5 –IN A OUT A V+ OUT B +IN B 3 –IN B 4 S8 PACKAGE 8-LEAD PLASTIC SO NOTE: THIS PIN CONFIGURATION DIFFERS FROM THE 8-LEAD DIP PIN LOCATIONS. INSTEAD, IT FOLLOWS THE INDUSTRY STANDARD LT1013DS8 SO PACKAGE CONFIGURATION. FOR SIMILAR PERFORMANCE WITH TRADITIONAL DIP PINOUT, SEE THE LT2078 TJMAX = 110°C, θJA = 220°C/ W ORDER PART NUMBER LT1078IS8 LT1078S8 PART MARKING 1078 ORDER PART NUMBER LT1079ISW LT1079SW +IN B 5 –IN B 6 OUT B 7 NC 8 SW PACKAGE 16-LEAD PLASTIC SO WIDE NOTE: FOR 14-PIN NARROW PACKAGE SEE THE LT2079 TJMAX = 110°C, θJA = 150°C/ W LT1078/LT1079 ELECTRICAL CHARACTERISTICS VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, TA = 25°C unless otherwise noted. LT1078C/LT1079C LT1078I/LT1079I LT1078M/LT1079M LT1078S8/LT1079SW MIN TYP MAX 40 60 40 60 0.5 0.25 8 1.2 45 37 4.0 0.10 0.05 6 0.6 29 28 2.3 0.06 0.02 300 3.5 0 94 100 150 120 6 1.0 130 4.2 3.5 0.04 800 6 3.8 – 0.3 108 114 1000 600 3.5 0.55 95 4.4 3.9 0.07 200 50 39 130 2.3 2.2 2.3 55 6 1.0 130 0.35 10 120 180 150 300 SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS (NOTE 2) LT1078 LT1078IS8/LT1078S8 LT1079 LT1079ISW/LT1079SW LT1078AC/LT1079AC LT1078AM/LT1079AM MIN TYP MAX 30 35 0.4 0.05 6 70 100 UNITS µV µV µV µV µV/Mo nA nA µVP-P nV√Hz nV√Hz pAP-P pA√Hz pA√Hz MΩ GΩ V V dB dB V/mV V/mV mV mV mV V V V/µs kHz µA dB V ∆VOS ∆Time IOS IB en Long Term Input Offset Voltage Stability Input Offset Current Input Bias Current Input Noise Voltage Input Noise Voltage Density 0.1Hz to 10Hz (Note 3) fO = 10Hz (Note 3) fO = 1000Hz (Note 3) 0.1Hz to 10Hz (Note 3) fO = 10Hz (Note 3) fO = 1000Hz (Note 4) 400 3.5 0 97 102 200 150 0.6 29 28 2.3 0.06 0.02 800 6 3.8 – 0.3 110 114 1000 600 3.5 0.55 95 4.2 3.5 0.04 4.4 3.9 0.07 200 38 in Input Noise Current Input Noise Current Density Input Resistance Differential Mode Common Mode Input Voltage Range CMRR PSRR AVOL Common Mode Rejection Ratio VCM = 0V to 3.5V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VS = 2.3V to 12V VO = 0.03V to 4V, No Load VO = 0.03V to 3.5V, RL = 50k Output Low, No Load Output Low, 2k to GND Output Low, ISINK = 100µA Output High, No Load Output High, 2k to GND SR GBW IS Slew Rate Gain Bandwidth Product Supply Current per Amplifier Channel Separation Minimum Supply Voltage AV = 1, VS = ± 2.5V fO ≤ 20kHz ∆VIN = 3V, RL = 10k (Note 5) 130 2.2 10789fe 3 LT1078/LT1079 The q denotes the specifications which apply over the temperature range – 40°C ≤ TA ≤ 85°C for I grades, – 55°C ≤ TA ≤ 125°C for AM/M grades. VS = 5V, 0V, VCM = 0.1V, VO = 1.4V unless otherwise noted. LT1078I/LT1079I LT1078AM/LT1079AM LT1078M/LT1079M MIN TYP MAX MIN TYP MAX q q q q q q q q q q q q q q q q q q ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS ∆VOS ∆T IOS IB CMRR PSRR AVOL Input Offset Voltage CONDITIONS UNITS µV µV µV µV/°C µV/°C µV/°C nA nA nA dB dB V/mV V/mV LT1078 LT1078IS8/LT1079 LT1079ISW LT1078IS8 LT1079ISW LT1078I/LT1079I 70 80 0.4 250 280 1.8 95 100 100 0.5 0.6 0.7 0.07 0.1 7 88 94 80 60 104 110 600 400 4.5 125 3.9 3.0 4.2 3.7 45 370 400 560 2.5 3.5 4.0 0.70 1.0 12 Input Offset Voltage Drift (Note 6) Input Offset Current Input Bias Current 0.07 7 92 98 110 80 106 110 600 400 4.5 125 3.9 3.0 4.2 3.7 43 0.50 10 Common Mode Rejection Ratio VCM = 0.05V to 3.2V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VS = 3.1V to 12V VO = 0.05V to 4V, No Load VO = 0.05V to 3.5V, RL = 50k Output Low, No Load Output Low, ISINK = 100µA Output High, No Load Output High, 2k to GND 8 170 8 170 mV mV V V IS Supply Current per Amplifier 60 70 µA The q denotes the specifications which apply over the temperature range 0°C ≤ TA ≤ 70°C. VS = 5V, 0V, VCM = 0.1V, VO = 1.4V unless otherwise noted. LT1078C/LT1079C LT1078AC/LT1079AC LT1078S8/LT1079SW MIN TYP MAX MIN TYP MAX q q q q q q q q q q q q q q q q q q SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS LT1078 LT1079 LT1078S8 LT1079SW LT1078S8 LT1079SW UNITS µV µV µV µV µV/°C µV/°C µV/°C nA nA dB dB V/mV V/mV 50 60 150 180 60 70 85 90 0.5 0.6 0.7 0.06 6 90 97 110 80 106 112 750 500 4.0 105 4.1 3.3 4.3 3.8 42 240 270 350 480 2.5 3.5 4.0 0.50 11 ∆VOS ∆T IOS IB CMRR PSRR AVOL Input Offset Voltage Drift (Note 6) Input Offset Current Input Bias Current 0.4 1.8 0.06 6 94 100 150 110 108 112 750 500 4.0 105 4.1 3.3 4.3 3.8 40 0.35 9 Common Mode Rejection Ratio VCM = 0V to 3.4V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VS = 2.6V to 12V VO = 0.05V to 4V, No Load VO = 0.05V to 3.5V, RL = 50k Output Low, No Load Output Low, ISINK = 100µA Output High, No Load Output High, 2k to GND 7 150 7 150 mV mV V V IS Supply Current per Amplifier 55 63 µA 10789fe 4 LT1078/LT1079 ELECTRICAL CHARACTERISTICS VS = ± 15V, TA = 25°C unless otherwise noted. LT1078C/LT1079C LT1078I/LT1079I LT1078M/LT1079M LT1078S8/LT1079SW MIN TYP MAX 70 80 0.05 6 13.5 –15.0 97 100 1000 300 ± 13.0 ± 11.0 0.06 65 13.8 –15.3 114 114 5000 1100 ±14.0 ± 13.2 0.10 47 75 350 500 0.35 10 SYMBOL PARAMETER VOS IOS IB Input Offset Voltage Input Offset Current Input Bias Current Input Voltage Range CMRR PSRR AVOL VOUT SR IS CONDITIONS (Including LT1078IS8/LT1078S8) LT1079ISW/LT1079SW LT1078AC/LT1079AC LT1078AM/LT1079AM MIN TYP MAX 50 0.05 6 13.5 –15.0 100 102 1000 400 ± 13.0 ± 11.0 0.06 13.8 –15.3 114 114 5000 1100 ± 14.0 ± 13.2 0.10 46 250 0.25 8 UNITS µV µV nA nA V V dB dB V/mV V/mV V V V/µs µA Common Mode Rejection Ratio VCM = 13.5V, –15V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Supply Current per Amplifier VS = 5V, 0V to ±18V VO = ±10V, RL = 50k VO = ±10V, RL = 2k RL = 50k RL = 2k The q denotes the specifications which apply over the temperature range – 40°C ≤ TA ≤ 85°C for I grades, – 55°C ≤ TA ≤ 125°C for AM/M grades. VS = ± 15V unless otherwise noted. LT1078I/LT1079I LT1078AM/LT1079AM LT1078M/LT1079M MIN TYP MAX MIN TYP MAX q q q q q q q q SYMBOL PARAMETER VOS ∆VOS ∆T IOS IB AVOL CMRR PSRR Input Offset Voltage Input Offset Voltage Drift (Note 6) Input Offset Current CONDITIONS (Including LT1078IS8) LT1079ISW LT1078IS8 LT1079ISW LT1078I/LT1079I UNITS µV µV µV/°C µV/°C µV/°C nA nA nA V/mV dB dB V µA 90 0.5 430 1.8 120 130 0.6 0.7 0.8 0.07 0.1 7 150 90 94 ±11.0 700 110 110 ±13.5 54 600 825 2.5 3.8 5.0 0.70 1.0 12 0.07 7 200 94 98 ±11.0 700 110 110 ±13.5 52 0.50 10 Input Bias Current Large-Signal Voltage Gain VO = ± 10V, RL = 5k VS = 5V, 0V to ± 18V q q q q q Common Mode Rejection Ratio VCM = 13V, –14.9V Power Supply Rejection Ratio Maximum Output Voltage Swing RL = 5k IS Supply Current per Amplifier 80 95 10789fe 5 LT1078/LT1079 0°C ≤ TA ≤ 70°C. VS = ± 15V unless otherwise noted. ELECTRICAL CHARACTERISTICS CONDITIONS LT1078S8 LT1079SW The q denotes the specifications which apply over the temperature range LT1078C/LT1079C LT1078S8/LT1079SW MIN TYP MAX 90 100 115 0.6 0.7 0.8 0.06 6 250 94 97 ± 11.0 73 1200 112 112 ± 13.6 50 85 460 540 750 2.5 3.8 5.0 0.50 11 SYMBOL PARAMETER VOS Input Offset Voltage LT1078AC/LT1079AC MIN TYP MAX q q q q q q q q UNITS µV µV µV µV/°C µV/°C µV/°C nA nA V/mV dB dB V µA 70 330 ∆VOS ∆T IOS IB AVOL CMRR PSRR Input Offset Voltage Drift (Note 6) Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing 0.5 1.8 LT1078S8 LT1079SW 0.06 6 300 97 100 1200 112 112 ± 13.6 49 0.35 9 VO = ± 10V, RL = 5k VCM = 13V, –15V VS = 5V, 0V to ± 18V RL = 5k q q q q ± 11.0 q IS Supply Current per Amplifier Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers, i.e., out of 100 LT1079s (or 100 LT1078s) typically 240 op amps (or 120) will be better than the indicated specification. Note 3: This parameter is tested on a sample basis only. All noise parameters are tested with VS = ± 2.5V, VO = 0V. Note 4: This parameter is guaranteed by design and is not tested. Note 5: Power supply rejection ratio is measured at the minimum supply voltage. The op amps actually work at 1.8V supply but with a typical offset skew of –300µV. Note 6: This parameter is not 100% tested. 10789fe 6 LT1078/LT1079 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Temperature OFFSET CURRENT (pA) 55 SUPPLY CURRENT PER AMPLIFIER (µA) 50 VS = ±15V 45 40 35 30 25 –50 –25 VS = 5V, 0V 100 INPUT BIAS CURRENT (nA) BIAS CURRENT (nA) 50 25 75 0 TEMPERATURE (°C) 0.1Hz to 10Hz Noise TA = 25°C VS = ± 2.5V NOISE VOLTAGE (0.4µV/DIV) NOISE VOLTAGE (0.4µV/DIV) CHANNEL A VOLTAGE NOISE DENSITY (nV/√Hz) CURRENT NOISE DENSITY (fA/√Hz) CHANNEL B 0 2 6 4 TIME (SEC) 10Hz Voltage Noise Distribution 35 30 PERCENT OF UNITS 20 PERCENT OF UNITS OFFSET VOLTAGE CHANGE (µV) 25 20 15 10 5 0 25 TA = 25°C VS = ± 2.5V 329 OP AMPS TESTED FROM THREE RUNS 106 LT1078'S 45 LT1079'S 35 30 VOLTAGE NOISE DENSITY (nV/√Hz) UW 100 LT1078/79 • TPC01 Input Bias and Offset Currents vs Temperature VS = 5V, 0V TO ±15V IOS Input Bias Current vs Common Mode Voltage 0 VS = 5V, 0V –2 –4 TA = 25°C –6 –8 –10 –12 TA = 125°C TA = – 55°C 50 0 –5 IB –6 125 –7 –50 –25 50 0 75 25 TEMPERATURE (°C) 100 125 –1 0 1 2 3 COMMON MODE VOLTAGE (V) 4 LT1078/79 • TPC02 LT1078/79 • TPC03 0.01Hz to 10Hz Noise 1000 Noise Spectrum TA = 25°C VS = ± 2.5V (AT VS = ±15V VOLTAGE NOISE IS 4% LESS CURRENT NOISE IS UNCHANGED) TA = 25°C VS = ± 2.5V 300 CURRENT NOISE 0.4µV CHANNEL A 100 VOLTAGE NOISE 30 1/f CORNER 0.7Hz 10 0.1 1 100 10 FREQUENCY (Hz) 1000 CHANNEL B 8 10 0 20 60 40 TIME (SEC) 80 100 LT1078/79 • TPC04 LT1078/79 • TPC05 LT1078/79 • TPC06 Distribution of Offset Voltage Drift with Temperature (In All Packages Except Surface Mount) 25 120 VS = 5V, 0V 109 VCM = 0.1V 120 LT1078'S 70 LT1079'S 89 520 OP AMPS 85 Long Term Stability of Two Representative Units (LT1078) 15 10 5 0 –5 1B –10 –15 0 1 2 3 TIME (MONTHS) 4 5 2A TA = 25°C, VS = 5V, 0V VCM = 0.1V 1A 15 2B 10 44 47 5 1 7 35 43 1 1 1 40 –2 –1 0 1 2 OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C) LT1078/79 • TPC08 0 LT1078/79 • TPC07 LT078/79 • TPC09 10789fe 7 LT1078/LT1079 TYPICAL PERFORMANCE CHARACTERISTICS Voltage Gain vs Frequency 140 120 VOLTAGE GAIN (dB) 100 80 60 40 20 0 –20 0.01 0.1 VS = ±15V VOLTAGE GAIN (dB) 5V, 0V 10 GAIN PHASE MARGIN 54° OVERSHOOT (%) VS = 5V, 0V 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) LT1078/79 • TPC10 Slew Rate, Gain Bandwidth Product and Phase Margin vs Temperature SLEW RATE (V/µs) 0.12 0.10 0.08 0.06 0.04 φM = ± 15V φM = 5V, 0V SLEW = ± 15V SLEW = 5V, 0V 1V/DIV 70 60 50 5V/DIV GAIN BANDWIDTH PRODUCT (kHz) 240 220 200 180 fO = 20kHz GBW = 5V, 0V 100 GBW = ± 15V 160 –50 –25 50 0 75 25 TEMPERATURE (°C) Minimum Supply Voltage 100 0 –100 –200 –300 –400 –500 70°C 25°C NONFUNCTIONAL CHANGE IN OFFSET VOLTAGE (µV) V – = 0V –0.1V ≤ VCM ≤ 0.4V 125°C INPUT OFFSET VOLTAGE (µV) 0.5 0.4 0.3 0.2 0.1 0 0 1 LT1078 LT1079 VOLTAGE GAIN (V/V) 0°C 0 2 3 1 POSITIVE SUPPLY VOLTAGE (V) LT1078/79 • TPC16 8 UW TA = 25°C –55°C Gain, Phase vs Frequency 30 PHASE MARGIN 66° 20 ±15V 100 120 PHASE SHIFT (DEG) 140 160 5V, 0V ±15V TA = 25°C CL = 20pF –10 10 30 100 300 FREQUENCY (kHz) 1000 180 200 20 0 80 60 120 100 Capacitive Load Handling TA = 25°C VS = 5V, 0V AV = 1 AV = 5 40 AV = 10 0 10 100 1000 CAPACITIVE LOAD (pF) 10000 LT1078/79 • TPC12 LTC1078/79 TPC11 Large-Signal Transient Response VS = 5V, 0V Large-Signal Transient Response VS = ± 15V PHASE MARGIN (DEG) 80 0V 0V 40 AV = 1, NO LOAD 50µs/DIV INPUT PULSE 0V TO 3.8V LT1078/79 • TPC27 AV = 1 NO LOAD 100µs/DIV LT1078/79 • TPC28 125 LT1078/79 • TPC13 Warm-Up Drift 0.8 0.7 0.6 TA = 25°C VS = ±15V WARM UP DRIFT AT VS = 5V, 0V IS IMMEASURABLY LOW 10M Voltage Gain vs Load Resistance VS = ±15V VS = 5V, 0V 125°C 25°C –55°C 1M –55°C 25°C 125°C 2 3 LT1078/79 • TPC17 100k 100 TIME AFTER POWER-ON (MINUTES) 1k 10k 100k LOAD RESISTANCE TO GROUND (Ω) 1M LT1078/79 • TPC18 10789fe LT1078/LT1079 TYPICAL PERFORMANCE CHARACTERISTICS Output Saturation vs Temperature vs Sink Current 1000 ISINK = 2mA V+ 125°C 25°C V+ – 1 V –2 + SATURATION VOLTAGE (mV) ISINK = 1mA 100 ISINK = 100µA ISINK = 10µA VS = 5V, 0V 10 ISINK = 1µA NO LOAD RL = 5k TO GND 1 –50 –25 OUTPUT VOLTAGE SWING (V) PERCENT OF UNITS 0 25 50 75 TEMPERATURE (°C) Common Mode Range vs Temperature PEAK-TO-PEAK OUTPUT SWING, VS = ± 15V (V) V+ V+ – 1 V+ – 2 V– + 1 V– V + = 2.5V TO 18V V – = 0V TO –18V COMMON MODE RANGE (V) OUTPUT IMPEDANCE (Ω) V– – 1 –50 –25 0 25 50 75 TEMPERATURE (°C) Common Mode Rejection Ratio vs Frequency 120 POWER SUPPLY REJECTION RATIO (dB) COMMON MODE REJECTION RATIO (dB) VS = ±15V 80 VS = 5V, 0V 60 40 20 0 10 100 1k 10k FREQUENCY (Hz) 100k 1M CHANNEL SEPARATION (dB) 100 UW 100 Output Voltage Swing vs Load Current 16 14 12 10 8 6 4 2 Distribution of Input Offset Voltage (LT1078 in 8-Pin SO Package) TA = 25°C VS = 5V, 0V –55°C V– + 2 125°C V– + 1 V – 25°C –55°C 125 0.01 0.1 1 10 SOURCING OR SINKING LOAD CURRENT (mA) LT1078/79 • TPC20 0 40 80 120 160 –160 –120 –80 –40 0 INPUT OFFSET VOLTAGE (µV) LT1078/79 • TPC21 LT1078/79 • TPC19 Undistorted Output Swing vs Frequency 30 PEAK-TO-PEAK OUTPUT SWING, VS = 5V, 0V (V) Closed Loop Output Impedance 1k AV = 100 AV = 10 10 AV = 1 1 VS = ±15V RL ≥ 100k VS = 5V, 0V RL ≥ 100k VS = 5V, 0V RL ≥ 1k 5 4 3 2 20 100 VS = ±15V RL = 30k 10 TA = 25°C LOAD RL, TO GND 0 0.01 1 10 FREQUENCY (kHz) 1 0 100 LT1078/79 • TPC23 0.1 10 100 1k 10k FREQUENCY (Hz) 100k LT1078/79 • TPC24 100 125 LT1078/79 • TPC22 Power Supply Rejection Ratio vs Frequency 120 100 80 60 40 20 0 0.1 NEGATIVE SUPPLY 140 120 100 80 60 40 20 0 1 10 100 1k 10k FREQUENCY (Hz) 100k 1M Channel Separation vs Frequency TA = 25°C POSITIVE SUPPLY TA = 25°C VS = ± 2.5V + 1VP-P SINE WAVE TA = 25°C VS = ±2.5V VIN = 3VP-P TO 2kHz RL = 10k 1 10 10k 1k 100 FREQUENCY (Hz) 100k 1M LT1078/79 • TPC25 LT1078/79 • TPC26 LT1078/79 • TPC27 10789fe 9 LT1078/LT1079 TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Transient Response VS = 5V, 0V Small-Signal Transient Response VS = ± 2.5V 20mV/DIV 20mV/DIV AV = 1 10µs/DIV CL = 15pF INPUT 50mV TO 150mV 20mV/DIV APPLICATIONS INFORMATION The LT1078/LT1079 devices are fully specified with V + = 5V, V – = 0V, VCM = 0.1V. This set of operating conditions appears to be the most representative for battery-powered micropower circuits. Offset voltage is internally trimmed to a minimum value at these supply voltages. When 9V or 3V batteries or ± 2.5V dual supplies are used, bias and offset current changes will be minimal. Offset voltage changes will be just a few microvolts as given by the PSRR and CMRR specifications. For example, if PSRR = 114dB (= 2µV/V), at 9V the offset voltage change will be 8µV. Similarly, VS = ± 2.5V, VCM = 0V is equivalent to a common mode voltage change of 2.4V or a VOS change of 7µV if CMRR = 110dB (3µV/V). A full set of specifications is also provided at ± 15V supply voltages for comparison with other devices and for completeness. Single Supply Operation The LT1078/LT1079 are fully specified for single supply operation, i.e., when the negative supply is 0V. Input common mode range goes below ground and the output swings within a few millivolts of ground while sinking current. All competing micropower op amps either cannot swing to within 600mV of ground (OP-20, OP-220, OP-420) or need a pull-down resistor connected to the output to swing to ground (OP-90, OP-290, OP-490, HA5141/42/44). This 10789fe 10 U W UW 0.1V 0V AV = 1 CL = 15pF LT1078/79 • TPC24 10µs/DIV LT1078/79 • TPC25 Small-Signal Transient Response VS = ± 15V 0V AV = 1 CL = 15pF 10µs/DIV LT1078/79 • TPC26 U U LT1078/LT1079 APPLICATIONS INFORMATION difference is critical because in many applications these competing devices cannot be operated as micropower op amps and swing to ground simultaneously. As an example, consider the instrumentation amplifier shown on the front page. When the common mode signal is low and the output is high, amplifier A has to sink current. When the common mode signal is high and the output low, amplifier B has to sink current. The competing devices require a 12k pull-down resistor at the output of amplifier A and a 15k at the output of B to handle the specified signals. (The LT1078 does not need pull-down resistors.) When the common mode input is high and the output is high these pull-down resistors draw 300µA (150µA each), which is excessive for micropower applications. The instrumentation amplifier is by no means the only application requiring current sinking capability. In seven of the nine single supply applications shown in this data sheet the op amps have to be able to sink current. In two of the applications the first amplifier has to sink only the 6nA input bias current of the second op amp. The competing devices, however, cannot even sink 6nA without a pulldown resistor Since the output of the LT1078/LT1079 cannot go exactly to ground, but can only approach ground to within a few millivolts, care should be exercised to ensure that the output is not saturated. For example, a 1mV input signal will cause the amplifier to set up in its linear region in the gain 100 configuration shown in Figure 1a, but is not enough to make the amplifier function properly in the voltage follower mode, Figure 1b. 5V R 5V 99R 100mV 1mV 4V 4V 2V 2V 0V 0V 6VP-P INPUT –1V TO 5V 1ms/DIV LT1078/79 • F02a 1ms/DIV OP-90 EXHIBITS OUTPUT PHASE REVERSAL LT1078/79 • F02b Figure 2. Voltage Follower with Input Exceeding the Negative Common Mode Range (VS = 5V, 0V) 10789fe U W U U – + – 1mV LT1078/79 • F01a + OUTPUT SATURATED ≈ 3.5mV LT1078/79 • F01b Figure 1a. Gain 100 Amplifier Figure 1b. Voltage Follower Single supply operation can also create difficulties at the input. The driving signal can fall below 0V — inadvertently or on a transient basis. If the input is more than a few hundred millivolts below ground, two distinct problems can occur on previous single supply designs, such as the LM124, LM158, OP-20, OP-21, OP-220, OP-221, OP-420 (1 and 2), OP-90/290/490 (2 only): 1. When the input is more than a diode drop below ground, unlimited current will flow from the substrate (V – terminal) to the input. This can destroy the unit. On the LT1078/LT1079, resistors in series with the input protect the devices even when the input is 5V below ground. 2. When the input is more than 400mV below ground (at 25°C), the input stage saturates and phase reversal occurs at the output. This can cause lockup in servo systems. Due to a unique phase reversal protection circuitry, the LT1078/LT1079 output does not reverse, as illustrated in Figure 2, even when the inputs are at –1V. 4V 2V 0V 1ms/DIV LT1078/LT1079 NO PHASE REVERSAL LT1078/79 • F02C 11 LT1078/LT1079 APPLICATIONS INFORMATION Matching Specifications In many applications the performance of a system depends on the matching between two op amps, rather than the individual characteristics of the two devices. The two and three op amp instrumentation amplifier configurations shown in this data sheet are examples. Matching characteristics are not 100% tested on the LT1078/LT1079. Table 1 PARAMETER VOS Match, ∆VOS LT1078AC/LT1079AC/LT1078AM/LT1079AM 50% YIELD 98% YIELD 30 110 40 150 0.5 1.2 6 8 0.12 0.4 120 100 117 105 LT1078C/LT1079C/LT1078M/LT1079M 50% YIELD 98% YIELD 50 190 50 250 0.6 1.8 6 10 0.15 0.5 117 97 117 102 UNITS µV µV µV/°C nA nA dB dB LT1078 LT1079 Temperature Coefficient ∆VOS Average Noninverting IB Match of Noninverting IB CMRR Match PSRR Match Comparator Applications The single supply operation of the LT1078/LT1079 and its ability to swing close to ground while sinking current lends itself to use as a precision comparator with TTL compatible output. 4 OUTPUT (V) OUTPUT (V) INPUT (mV) 200µs/DIV LT2078/79 • F03 2 0 INPUT (mV) 0 –100 VS = 5V, 0V Figure 3. Comparator Rise Response Time to 10mV, 5mV, 2mV Overdrives 12 U W U U Some specifications are guaranteed by definition. For example, 70µV maximum offset voltage implies that mismatch cannot be more than 140µV. 97dB (= 14µV/V) CMRR means that worst-case CMRR match is 91dB (= 28µV/V). However, Table 1 can be used to estimate the expected matching performance at VS = 5V, 0V between the two sides of the LT1078, and between amplifiers A and D, and between amplifiers B and C of the LT1079. 4 2 0 100 0 VS = 5V, 0V 200µs/DIV LT2078/79 • F04 Figure 4. Comparator Fall Response Time to 10mV, 5mV, 2mV Overdrives 10789fe LT1078/LT1079 TYPICAL APPLICATIONS Micropower, 10ppm/°C, ± 5V Reference 2M LT1034BC-1.2 220k 5.000VOUT 120k 3 1M 1M –IN 1M 9V + – 8 1 1M 6 1/2 LT1078 2 4 –9V 510k 1% 510k 160k 1% SUPPLY CURRENT = 9V BATTERY = 115µA –9V BATTERY = 85µA OUTPUT NOISE = 36µVP-P, 0.1Hz TO 10Hz THE LT1078 CONTRIBUTES LESS THAN 3% OF THE TOTAL OUTPUT NOISE AND DRIFT WITH TIME AND TEMPERATURE. THE ACCURACY OF THE –5V OUTPUT DEPENDS ON THE MATCHING OF THE TWO 1M RESISTORS 20k Picoampere Input Current, Triple Op Amp Instrumentation Amplifier with Bias Current Cancellation –IN 3 2R 20M 6 +IN R 10M 2R 20M U Gain of 10 Difference Amplifier 10M 3V – 1/2 LT1078 OUTPUT 0.0035V TO 2.4V LT1078/79 • TA04 – 1/2 LT1078 7 –5.000VOUT LT1078/79 • TA03 +IN + 10M 5 + BANDWIDTH= 20kHz OUTPUT OFFSET= 0.7mV OUTPUT NOISE= 80µVP-P (0.1Hz TO 10Hz) 260µVRMS OVER FULL BANDWIDTH THE USEFULNESS OF DIFFERENCE AMPLIFIERS IS LIMITED BY THE FACT THAT THE INPUT RESISTANCE IS EQUAL TO THE SOURCE RESISTANCE. THE PICOAMPERE OFFSET CURRENT AND LOW CURRENT NOISE OF THE LT1078 ALLOWS THE USE OF 1M SOURCE RESISTORS WITHOUT DEGRADATION IN PERFORMANCE. IN ADDITION, WITH MEGOHM RESISTORS MICROPOWER OPERATION CAN BE MAINTAINED + 1/4 LT1079 1 R2 1M R1 1M RG 200k 9 R1 1M 10 R2 1M R3 9.1M 2 – – 1/4 LT1079 8 OUTPUT 4mV TO 8.2V LT`1078/79 • TA05 – 1/4 LT1079 7 + 5 + 9V 4 14 R3 9.1M 12 + – 1/4 LT1079 13 11 GAIN = 1 + 2R1 R3 = 100 FOR VALUES SHOWN RG R2 INPUT BIAS CURRENT TYPICALLY < 150pA INPUT RESISTANCE = 3R = 30M FOR VALUES SHOWN NEGATIVE COMMON MODE LIMIT = (IB)(2R) + 20mV ≈ 140mV GAIN BANDWIDTH PRODUCT = 1.8MHz ( ) 10789fe 13 LT1078/LT1079 TYPICAL APPLICATIONS 85V, –100V Common Mode Range Instrumentation Amplifier (AV = 10) 1M 9V 10M +IN 10M –IN 2 10M 2M INPUT – + 8 1 100k 6 1/2 LT1078 3 4 –9V 100k 5 1M 2kHz 8mV 0.8mVP-P (0.1Hz TO 10Hz) 1.4mVRMS OVER FULL BANDWIDTH (DOMINATED BY RESISTOR NOISE) INPUT RESISTANCE = 10M BANDWIDTH= OUTPUT OFFSET= OUTPUT NOISE= = 3.5V –3.5V LT1078/79 • TA08 1.11k 10k 3V TO 18V 2 – + 4 1 6 1 1/4 LT1079 3 11 IN ERROR DUE TO SWITCH ON RESISTANCE, LEAKAGE CURRENT, NOISE AND TRANSIENTS ARE ELIMINATED 14 U – + Half-Wave Rectifier 2M 3V – 1/2 LT1078 OUTPUT 1/2 LT1078 7 OUTPUT 8V TO –9V LT1078/79 • TA06 1M + VOMIN = 6mV NO DISTORTION TO 100Hz 1.8V –1.8V 1.8V 0V LT1078/79 • TA07 Absolute Value Circuit (Full-Wave Rectifier) 200k 5V 200k INPUT 2 3.5V 0V 1 1N4148 4 6 5 – + 8 1/2 LT1078 3 + 1/2 LT1078 7 OUTPUT – VOMIN = 4mV NO DISTORTION TO 100Hz Programmable Gain Amplifier (Single Supply) 100k 1M 3V TO 18V 11 13 A 2 4 9 12 – 1/4 LT1079 14 OUT – 1/4 LT1079 7 9 3B + 5 LT1078/79 • TA09 + – 1/4 LT1079 88 C CD4016B 13 5 6 7 GAIN 1000 100 10 PIN 13 HIGH LOW LOW 10 + CD4016B PIN 5 LOW HIGH LOW PIN 6 LOW LOW HIGH 10789fe LT1078/LT1079 TYPICAL APPLICATIONS Single Supply, Micropower, Second Order Lowpass Filter with 60Hz Notch 0.02µF 27.6k 0.1% IN 27.6k 0.1% 5V 8 1 6 2.64M 0.1% 2.64M 0.1% 2000pF 0.5% 120k 5% 100pF fC = 40Hz Q > 30 1000pF 0.5% 1000pF 0.5% LT1078/79 • TA10 Y INPUT (5mV TO 50V) 505k 0.1% 9V 1/4 LT1079 7 30k 5% 30k 5% 14 1/4 LT1079 12 10k GAIN 11 –1.5V TO –9V X INPUT (5mV TO 50V) 505k 0.1% 220pF 499k 0.5% 1/4 LT1079 1 30k 5% + 3 Q1,Q2, Q3, Q4 = MAT-04 TYPICAL LINEARITY = 0.01% OF FULL-SCALE OUTPUT (X)(Y) OUTPUT = , POSITIVE INPUTS ONLY (Z) X + Y+ Z + OUT 500k OUT POSITIVE SUPPLY CURRENT = 165µA + 500k NEGATIVE SUPPLY CURRENT = 165µA + BANDWIDTH (< 3VP-P SIGNAL): X AND Y INPUTS = 10kHz Z INPUT = 4kHz + – 2 Q2 Q4 10 – 9 1/4 LT1079 8 + + 5 – – 6 U – 1/2 LT1078 7 3 0.01µF 2 + – 5.1M 1% 1/2 LT1078 4 5 + OUTPUT TYPICAL OFFSET ≈ 600µV 1.35M 0.1% Micropower Multiplier/Divider 505k 0.1% Z INPUT (5mV TO 50V) 4 220pF Q1 Q3 220pF 13 OUTPUT (5mV TO 8V) LT1078/79 • TA11 10789fe 15 LT1078/LT1079 TYPICAL APPLICATIONS 1M** 1M** INPUT 510k 2 1/4 LT1079 9V 1M 680k 1N914 1000pF 510k Q6 2N4393 VSET VOUT VIN 16 + 5 – 6 4 7 1M Q5 1/4 LT1079 11 –9V BIPOLAR SYMMETRY IS EXCELLENT VSET BECAUSE ONE DEVICE, Q2, * 1% FILM SETS BOTH LIMITS ** RATIO MATCH 0.05% SUPPLY CURRENT ≈ 240µA Q2, Q3, Q4, Q5 CA3096 TRANSISTOR ARRAY BANDWIDTH = 150kHz + + 1M 1N914 1/4 LT1079 10 510k 12 – – Q1 2N4393 + 3 U Micropower Dead Zone Generator Q4 1M* Q2 1 1M* GAIN 200k 8 Q3 VSET DEAD ZONE CONTROL INPUT 0.4V TO 5V 470k – 1M** 9 1M** 13 1/4 LT1079 14 VOUT LT1078/79 • TA12 10789fe LT1078/LT1079 TYPICAL APPLICATIONS 2M 1% 255k 1% Platinum RTD Signal Conditioner with Curvature Correction 3V (LITHIUM) 13k* 12.3k* 10k* 2 50k 5°C TRIM 1k** 1k** 43.2k** 1µF 5k 220°C TRIM LT1004-1.2 1 RP 1k AT 0°C 1µF 1.21M* (SELECT AT 110°C) LT1078/79 • TA14 + RP = ROSEMOUNT 118MF ** = TRW MAR-6 0.1% * = 1% METAL FILM 1k** 5 – U Lead-Acid Low-Battery Detector with System Shutdown BATTERY OUTPUT 2M 1% 910k 5% 3 12V + 1/2 LT1078 1 LO = BATTERY LOW (IF VS < 10.90V) 2 – 5 + – 8 7 LO = SYSTEM SHUTDOWN (IF VS < 10.05V) 1/2 LT1078 280k 1% LT1004-1.2 LT1078/79 • TA13 6 4 TOTAL SUPPLY CURRENT = 105µA 8 + – 3 1/2 LT1078 4 6 1/2 LT1078 7 0.02V TO 2.2VOUT = 2°C TO 220°C ± 0.1°C 10789fe 17 LT1078/LT1079 SI PLIFIED SCHEMATIC 1/2 LT1078, 1/4 LT1079 V+ 10k 10k Q5 Q6 Q11 IN – 600Ω Q1 Q21 Q2 Q22 Q28 V+ Q39 Q9 C2 175pF Q7 Q8 Q10 Q17 Q20 Q18 C3 40pF Q19 IN + 600Ω PACKAGE DESCRIPTIO 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX 0.050 (1.270) MAX GAUGE PLANE 0.010 – 0.045* (0.254 – 1.143) 0.016 – 0.021** (0.406 – 0.533) 0.165 – 0.185 (4.191 – 4.699) REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) SEATING PLANE 18 U W W 2.2k 5.6k 1.3k 3.6k Q54 1 1 5k Q53 2 Q47 11.5k 12.5k Q16 Q14 Q15 Q32 Q52 Q46 Q3 Q4 Q24 Q29 Q37 Q30 1 3 Q25 3k Q35 Q26 C4 4pF 2.9k 30Ω OUT Q44 V+ V– Q40 Q41 Q12 4 1 8.6k C1 50pF Q27 C5 2.5pF 150k Q31 Q36 J1 Q33 Q50 Q23 V+ Q45 Q34 10k Q38 30Ω 5.35k Q51 Q55 Q43 700k V– LT1078/79 • SIMPLIFIED SCHEM Q48 Q42 Q49 9.1k 700k 6.2k 6.2k 1.35k H Package 8-Lead TO-5 Metal Can (.230 Inch PCD) (Reference LTC DWG # 05-08-1321) 45°TYP 0.028 – 0.034 (0.711 – 0.864) 0.027 – 0.045 (0.686 – 1.143) PIN 1 0.230 (5.842) TYP 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8 (TO-5) 0.230 PCD 1197 OBSOLETE PACKAGE 10789fe LT1078/LT1079 PACKAGE DESCRIPTIO U J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.005 (0.127) MIN 0.405 (10.287) MAX 8 7 6 5 0.025 (0.635) RAD TYP 1 NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 0.045 – 0.065 (1.143 – 1.651) 0.014 – 0.026 (0.360 – 0.660) 0.100 (2.54) BSC 0.125 3.175 MIN J8 1298 CORNER LEADS OPTION (4 PLCS) 0.300 BSC (0.762 BSC) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.220 – 0.310 (5.588 – 7.874) 0.008 – 0.018 (0.203 – 0.457) 0° – 15° 2 3 4 J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) 0.300 BSC (0.762 BSC) 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.005 (0.127) MIN 0.785 (19.939) MAX 14 13 12 11 10 9 8 0.008 – 0.018 (0.203 – 0.457) 0.025 (0.635) RAD TYP 0.220 – 0.310 (5.588 – 7.874) 0° – 15° 1 0.045 – 0.065 (1.143 – 1.651) 0.100 (2.54) BSC 0.125 (3.175) MIN J14 1298 2 3 4 5 6 7 NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 0.014 – 0.026 (0.360 – 0.660) OBSOLETE PACKAGES N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.400* (10.160) MAX 8 7 6 5 0.300 – 0.325 (7.620 – 8.255) 0.045 – 0.065 (1.143 – 1.651) 0.130 ± 0.005 (3.302 ± 0.127) 0.009 – 0.015 (0.229 – 0.381) 0.065 (1.651) TYP 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) 0.255 ± 0.015* (6.477 ± 0.381) ( +0.035 0.325 –0.015 +0.889 8.255 –0.381 ) 1 2 3 4 0.100 (2.54) BSC N8 1098 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 10789fe Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 19 LT1078/LT1079 PACKAGE DESCRIPTION N Package 14-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.300 – 0.325 (7.620 – 8.255) 0.130 ± 0.005 (3.302 ± 0.127) 0.020 (0.508) MIN 0.009 – 0.015 (0.229 – 0.381) 0.005 (0.125) MIN 0.100 (2.54) *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. BSC MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) +0.035 0.325 –0.015 8.255 +0.889 –0.381 0.045 – 0.065 (1.143 – 1.651) 0.770* (19.558) MAX 14 13 12 11 10 9 8 ( ) 0.125 (3.175) MIN S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.010 – 0.020 × 45° (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0°– 8° TYP 0.053 – 0.069 (1.346 – 1.752) 8 0.004 – 0.010 (0.101 – 0.254) 0.228 – 0.244 (5.791 – 6.197) 0.150 – 0.157** (3.810 – 3.988) 0.189 – 0.197* (4.801 – 5.004) 7 6 5 0.014 – 0.019 (0.355 – 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0.016 – 0.050 (0.406 – 1.270) 0.291 – 0.299** (7.391 – 7.595) 0.010 – 0.029 × 45° (0.254 – 0.737) 0° – 8° TYP 0.009 – 0.013 (0.229 – 0.330) NOTE 1 0.016 – 0.050 (0.406 – 1.270) NOTE: 1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 1 2 3 4 5 6 7 8 S16 (WIDE) 1098 20 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 U q 0.065 (1.651) TYP 0.018 ± 0.003 (0.457 ± 0.076) 0.255 ± 0.015* (6.477 ± 0.381) 1 2 3 4 5 6 7 N14 1098 0.050 (1.270) BSC 1 2 3 4 SO8 1298 SW Package 16-Lead Plastic Small Outline (Wide .300 Inch) (Reference LTC DWG # 05-08-1620) 0.093 – 0.104 (2.362 – 2.642) 0.037 – 0.045 (0.940 – 1.143) 16 15 0.398 – 0.413* (10.109 – 10.490) 14 13 12 11 10 9 0.050 (1.270) BSC 0.004 – 0.012 (0.102 – 0.305) NOTE 1 0.394 – 0.419 (10.007 – 10.643) 0.014 – 0.019 (0.356 – 0.482) TYP 10789fe LT/CPI 1201 1.5K REV E • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1994