LT1057IS8

LT1057/LT1058 Dual and Quad, JFET Input Precision High Speed Op Amps FEATURES DESCRIPTION 14V/µs Slew Rate: 10V/µs Min n 5MHz Gain-Bandwidth Product n Fast Settling Time: 1.3µs to 0.02% n 150µV Offset Voltage (LT1057): 450µV Max n 180µV Offset Voltage (LT1058): 600µV Max n 2µV/°C V OS Drift: 7µV/°C Max n 50pA Bias Current at 70°C n Low Voltage Noise: 13nV/√Hz at 1kHz 26nV/√Hz at 10Hz The LT®1057 is a matched JFET input dual op amp in the industry standard 8-pin configuration, featuring a combination of outstanding high speed and precision specifications. It replaces all the popular bipolar and JFET input dual op amps. In particular, the LT1057 upgrades the performance of systems using the LF412A and OP-215 JFET input duals. n The LT1058 is the lowest offset quad JFET input operational amplifier in the standard 14-pin configuration. It offers significant accuracy improvement over presently available JFET input quad operational amplifiers. The LT1058 can replace four single precision JFET input op amps, while saving board space, power dissipation and cost. APPLICATIONS n n n n n n n Precision, High Speed Instrumentation Fast, Precision Sample-and-Hold Logarithmic Amplifiers D/A Output Amplifiers Photodiode Amplifiers Voltage-to-Frequency Converters Frequency-to-Voltage Converters Both the LT1057 and LT1058 are available in the plastic PDIP package and the surface mount SO package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Current Output, High Speed, High Input Impedance Instrumentation Amplifier 3 2 + 1/4 LT1058 25 1 – 7.5k 4.7k 7.5k 6 9.1k 5 500Ω* 13 V1 12 – 1/4 LT1058 14 IOUT = 2(V1 – V2) RX 4.7k 7.5k + – 1/4 LT1058 7 RX IOUT + 8 1/4 LT1058 + 10 – 9 VS = ±15V TA = 25°C 20 PERCENT OF UNITS V2 Distribution of Offset Voltage (All Packages, LT1057 and LT1058) LT1057: 610 OP AMPS LT1058: 520 OP AMPS 1130 OP AMPS TESTED 15 10 5 6.8k 0 –1.0 1k** –0.6 0.6 –0.2 0 0.2 INPUT OFFSET VOLTAGE (mV) 1.0 10578 TA01b *GAIN ADJUST **COMMON MODE REJECTION ADJUST BANDWIDTH ≈ 2MHz 10578 TA01 10578fd 1 LT1057/LT1058 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage.........................................................±20V Differential Input Voltage.........................................±40V Input Voltage............................................................±20V Output Short-Circuit Duration........................... Indefinite Storage Temperature Range....................–65°C to 150°C Lead Temperature (Soldering, 10 sec)................... 300°C Operating Temperature Range LT1057AM/LT1057M/ LT1058AM/LT1058M (OBSOLETE)......–55°C to 125°C LT1057AC/LT1057C/LT1057S LT1058AC/LT1058C/LT1058S.................... 0°C to 70°C LT1057I/LT1058I............................ –40°C ≤ TA ≤ 85°C PACKAGE/ORDER INFORMATION TOP VIEW 16 NC OUT A 1 NC 2 15 NC – IN A 2 OUT A 3 14 V+ +IN A 3 – IN A 4 – A + +IN A 5 B V– 6 – + NC 7 13 OUT B V+ 4 12 – IN B +IN B 5 11 +IN B – IN B 6 10 NC OUT B 7 NC 8 9 – A + + –B D C – + – + NC 1 16 OUT D +IN A 1 8 –IN A 15 – IN D V– 2 7 OUT A 14 +IN D +IN B 3 6 V+ 13 V– –IN B 4 5 OUT B 12 +IN C 9 SW PACKAGE 16-LEAD PLASTIC (WIDE) SO SW PACKAGE 16-LEAD PLASTIC (WIDE) SO TJMAX = 150°C, θJA = 90°C/W TJMAX =150°C, θJA =90°C/W TOP VIEW –IN A 2 +IN A 3 V+ 4 +IN B 5 –IN B 6 OUTPUT B 7 – A + – 13 D + 12 –IN D +IN D 11 V– + –B C – + OUTPUT A 14 OUTPUT D 10 +IN C 9 –IN C 8 OUTPUT C N14 PACKAGE 14-LEAD PDIP TJMAX = 125°C, θJA = 130°C/W 8 OUTPUT A 1 –IN A 2 A + + – +IN A 3 4 V ORDER PART NUMBER 7 OUTPUT B B – LT1057AMH LT1057MH LT1057ACH LT1057CH 6 –IN B 5 +IN B – (CASE) H PACKAGE 8-LEAD METAL CAN ORDER PART NUMBER ORDER PART NUMBER LT1058ACN LT1058CN LT1057ACN8 LT1057CN8 OUTPUT 1 LT1057ACJ8 LT1057CJ8 LT1057AMJ8 LT1057MJ8 V– 4 LT1058AMJ LT1058MJ LT1058ACJ LT1058CJ 1057 1057I TOP VIEW V+ LT1058SW LT1058ISW LT1057SW LT1057ISW S8 PART MARKING Please note that the LT1057S8/LT1057IS8 standard surface mount pinout differs from that of the LT1057 standard CERDIP/PDIP packages. ORDER PART NUMBER ORDER PART NUMBER 1 NC LT1057S8 LT1057IS8 S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 200°C/W 11 –IN C 10 OUT C NC 8 NC ORDER PART NUMBER TOP VIEW TOP VIEW J14 PACKAGE 14-LEAD CERDIP TJMAX = 150°C, θJA = 100°C/W TOP VIEW –IN A 2 +IN A 3 – A + B – + 8 V+ 7 OUTPUT B 6 – IN B 5 + IN B N8 PACKAGE 8-LEAD PDIP TJMAX = 125°C, θJA = 130°C/W J8 PACKAGE 8-LEAD CERDIP TJMAX = 150°C, θJA = 100°C/W Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. 10578fd 2 LT1057/LT1058 ELECTRICAL CHARACTERISTICS S = ±15V, TA = 25°C, VCM = 0V unless otherwise noted. (Note 2) V LT1057AM/LT1058AM LT1057AC/LT1058AC SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS MIN LT1057 LT1057 (S8 Package) LT1058 TYP MAX 150 450 180 600 LT1057M/LT1058M LT1057C/LT1058C MIN TYP MAX UNITS 200 220 250 800 1200 1000 μV μV μV lOS Input Offset Current Fully Warmed Up 3 40 4 50 pA lB Input Bias Current Fully Warmed Up ±5 ±50 ±7 ±75 pA Input Resistance Differential Common Mode VCM = –11V to 8V Common Mode VCM = 8V to 11V Input Capacitance 1012 1012 1011 1012 1012 1011 Ω Ω Ω 4 4 pF en Input Noise Voltage 0.1Hz to 10Hz LT1057 LT1058 en Input Noise Voltage Density fO = 10Hz fO = 1kHz (Note 3) 26 13 22 in Input Noise Current Density fO = 10Hz, 1kHz (Note 4) 1.5 4 AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k VO = ±10V, RL = 1k Input Voltage Range 2.0 2.4 2.1 2.5 µVP-P µVP-P 28 14 24 nV/√Hz nV/√Hz 1.8 6 fA/√Hz 150 120 350 250 100 80 300 220 V/mV V/mV ±10.5 14.3 –11.5 ±10.5 14.3 –11.5 V V CMRR Common Mode Rejection Ratio , LT1057 LT1058 86 84 100 98 82 80 98 96 dB dB PSRR Power Supply Rejection Ratio VS = ±10V to ±18V 88 103 86 102 dB VOUT Output Voltage Swing RL = 2k ±12 ±13 ±12 ±13 V 10 14 8 13 V/µs f = 1MHz (Note 6) 3.5 5 3 5 MHz SR Slew Rate GBW Gain-Bandwidth Product IS Supply Current Per Amplifier Channel Separation 1.6 DC to 5kHz, VIN = ±10V 2.5 1.7 132 2.8 130 mA dB (LT1057/LT1058 SW Package Only), VS = ±15V, TA = 25°C, VCM = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage LT1057 LT1058 lOS Input Offset Current lB Input Bias Current Input Resistance –Differential –Common Mode TYP MAX 0.3 0.35 2 2.5 mV Fully Warmed Up 5 50 pA Fully Warmed Up ±10 ±100 pA VCM = –11V to 8V VCM = 8V to 11V 0.4 0.4 0.05 TΩ 4 pF Input Capacitance MIN UNITS en Input Noise Voltage 0.1Hz to 10Hz LT1057 LT1058 2.1 2.5 µVP-P en Input Noise Voltage Density fO = 10Hz fO = 1kHz 26 13 nV/√Hz 10578fd 3 LT1057/LT1058 ELECTRICAL CHARACTERISTICS unless otherwise noted. (LT1057/LT1058 SW Package Only), VS = ±15V, TA = 25°C, VCM = 0V SYMBOL PARAMETER CONDITIONS MIN in Input Noise Current Density fO = 10Hz, 1kHz AVOL Large-Signal Voltage Gain VO = ±10V RL = 2k RL = 1k Input Voltage Range TYP MAX UNITS 1.8 fA/√Hz 100 50 300 220 V/mV ±10.5 14.3 –11.5 V CMRR Common Mode Rejection Ratio LT1057 VCM = ±15V LT1058 82 80 98 98 dB PSRR Power Supply Rejection Ratio VS = ±10V to ±18V 86 102 dB VOUT Output Voltage Swing RL = 2k ±12 ±13 V 8 13 V/µs 3 5 MHz SR Slew Rate GBW Gain-Bandwidth Product IS Supply Current Per Amplifier f = 1MHz (Note 6) 1.7 DC to 5kHz, VIN = ±10V Channel Separation 2.8 130 mA dB The l denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C or –40°C ≤ TA ≤ 85°C (LT1057IS8), otherwise specifications are TA = 25°C. VS = ±15V, VCM = 0V, unless noted. LT1057AC LT1058AC SYMBOL PARAMETER VOS Input Offset Voltage Average Temperature Coefficient of Input (Offset Voltage) IOS IB lnput Offset Current Input Bias Current CONDITIONS MIN LT1057C LT1058C TYP MAX MIN TYP MAX UNITS 330 500 400 400 1400 2300 1900 1800 μV μV μV μV 2.3 4 4 4.5 3 5 12 16 16 16 15 22 μV/°C μV/°C μV/°C μV/°C μV/°C μV/°C LT1057 LT1057IS8 LT1057S8 LT1058 l l l l 250 800 300 1200 LT1057 H/J8 Package N8 Package LT1057S8 (Note 5) LT1057IS8 (Note 5) LT1058 J Package (Note 5) N Package (Note 5) l l l l l l 1.8 3 7 10 2.5 4 10 15 Warmed Up, TA = 70°C LT1057IS8 18 150 20 35 250 600 pA l Warmed Up, TA = 70°C LT1057IS8 ±50 ±250 ±60 ±100 ±350 ±900 pA l AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k l 70 220 50 200 V/mV CMRR Common Mode Rejection Ratio VCM = ±10.4V l 85 98 80 96 dB PSRR Power Supply Rejection Ratio VS = ±10V to ±18V l 87 102 84 100 dB VOUT Output Voltage Swing RL = 2k l ±12 ±12.8 ±12 ±12.8 V IS Supply Current Per Amplifier l TA = 70°C 14 2.8 1.5 3.2 mA mA 10578fd 4 LT1057/LT1058 ELECTRICAL CHARACTERISTICS (LT1057/LT1058 SW Package Only). The l denotes specifications which apply over the temperature range of VS = ±15V, VCM = 0V, 0°C ≤ TA ≤ 70°C (LT1057SW, LT1058SW) or –40°C ≤ TA ≤ 85°C (LT1057ISW, LT1058ISW), unless otherwise noted. SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage LT1057 LT1058S LT1058IS MIN Average Temperature Coefficient of Input Offset Voltage TYP MAX l l l 0.5 0.6 0.7 2.5 3.0 4.0 l 5 UNITS mV µV/°C lOS Input Offset Current Warmed Up, TA = 70°C Warmed Up, TA = 85°C 20 35 250 400 pA lB Input Bias Current Warmed Up, TA = 70°C Warmed Up, TA = 85°C ±60 ±100 ±400 ±700 pA A VOL Large-Signal Voltage Gain VO = ±10V, RL = 2k LT1057 LT1058 l l 50 40 200 200 mV CMRR Common Mode Rejection Ratio LT1057 VCM = ±10.5V LT1058 l l 80 78 96 96 dB PSRR Power Supply Rejection Ratio LT1057 VS = ±10V to ±18V LT1058 l l 84 82 100 100 dB VOUT Output Voltage Swing RL = 2k l ±12 ±12.8 V The l denotes the specifications which apply over the temperature range of –55°C ≤ TA ≤ 125°C, VS = ±15V, VCM = 0V, unless otherwise noted. LT1057AM LT1058AM SYMBOL PARAMETER TYP MAX TYP MAX UNITS Input Offset Voltage LT1057 LT1058 l l 300 380 1100 1600 400 550 2000 2500 μV μV Average Temperature Coefficient of Input Offset Voltage LT1057 LT1058 (Note 5) l l 2.0 2.5 7 10 2.5 3 12 15 μV/°C μV/°C IOS lnput Offset Current Warmed Up, TA = 125°C 0.15 2 0.2 3 nA IB Input Bias Current Warmed Up, TA = 125°C ±0.6 ±4.5 ±0.7 ±6 nA AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k l 40 120 30 110 V/mV CMRR Common Mode Rejection Ratio VCM = ±10.4V l 84 97 80 95 dB VOS CONDITIONS MIN LT1057M LT1058M MIN PSRR Power Supply Rejection Ratio VS = ±10V to ±17V l 86 100 83 98 dB VOUT Output Voltage Swing RL = 2k l ±12 ±12.7 ±12 ±12.6 V IS Supply Current Per Amplifier TA = 125°C Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Typical parameters are defined as the 60% yield of distributions of individual amplifiers; (i.e., out of 100 LT1058s or, 100 LT1057s, typically 240 op amps, or 120 for the LT1057, will be better than the indicated specification). Note 3: This parameter is tested on a sample basis only. 1.25 1.9 1.3 2.2 mA Note 4: Current noise is calculated from the formula: in = (2qlb)1/2 where q = 1.6 • 10 –19 coulomb. The noise of source resistors up to 1G swamps the contribution of current noise. Note 5: This parameter is not 100% tested. Note 6: Gain-bandwidth product is not tested. It is guaranteed by design and by inference from the slew rate measurement. 10578fd 5 LT1057/LT1058 TYPICAL PERFORMANCE CHARACTERISTICS 300 100 BIAS CURRENT 30 OFFSET CURRENT 10 3 25 75 100 50 AMBIENT TEMPERATURE (°C) 0 VS = ±15V 1.4 140 1.2 120 1.0 TA = 125°C 0.8 TA = 70°C 0.4 40 0.2 TA = 25°C 0 –5 0 –10 5 10 COMMON MODE INPUT VOLTAGE (V) 120 LT1057J: 130 OP AMPS LT1058J: 136 OP AMPS 368 OP AMPS VS = ±15V 100 NUMBER OF UNITS NUMBER OF UNITS 70 60 40 32 20 2 4 5 24 16 80 70 60 60 40 65 31 22 1 3 4 2 TIME AFTER POWER ON (MINUTES) 5 10578 G03 27 11 9 VS = ±15V TA = 25°C 30 20 10 0 –10 –20 –30 –40 –50 0 1 3 2 TIME (MONTHS) 4 5 10578 G06 Voltage Gain vs Temperature 1000 VS = ±15V TA = 25°C VS = ±15V TA = 25°C RL = 2k VOLTAGE GAIN (V/mV) 20 0 40 NOISE VOLTAGE (1µV/DIV) RMS VOLTAGE NOISE DENSITY (nV/√Hz) LT1057 J PACKAGE 0.1Hz to 10Hz Noise 30 LT1057 H PACKAGE 20 10578 G05 Voltage Noise vs Frequency 50 LT1057 N, LT1058 J PACKAGE 50 1 UNIT EACH AT –19, –16, –13 14, 16µV/°C 10578 G04 70 LT1058 N PACKAGE 40 0 5 3 4 0 6 3 0 12 9 –12 –9 –6 –3 OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C) 2 1 0 6 3 0 12 9 –12 –9 –6 –3 OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C) 1000 60 Long-Term Drift of Representative Units 44 20 4 –20 LT1057N: 180 OP AMPS LT1058N: 176 OP AMPS 356 OP AMPS 96 80 0 VS = ± 15V TA = 25°C 80 Distribution of Offset Voltage Drift with Temperature (Plastic N Package) 112 LT1057H: 102 OP AMPS 100 15 20 100 10578 G02 Distribution of Offset Voltage Drift with Temperature (H and J Package) VS = ±15V 80 60 10578 G01 120 100 0.6 –0.2 –15 125 Warm-Up Drift 160 OFFSET VOLTAGE CHANGE (µV) VS = ±15V VCM = 0V WARMED UP INPUT BIAS CURRENT, TA = 125°C (nA) INPUT BIAS AND OFFSET CURRENT (pA) 1.6 INPUT BIAS CURRENT, TA = 25°C TO 70°C (pA) 1000 Input Bias Current Over the Common-Mode Range CHANGE IN OFFSET VOLTAGE (µV) Input Bias and Offset Currents vs Temperature VS = ±15V V0 = ±10V 300 RL = 1k 100 30 1/f CORNER = 28Hz 10 3 10 30 100 300 1000 3000 10000 FREQUENCY (Hz) 10578 G07 0 2 6 4 TIME (SECONDS) 8 10 10578 G08 10 –75 –25 25 75 TEMPERATURE (°C) 125 10578 G09 10578fd 6 LT1057/LT1058 TYPICAL PERFORMANCE CHARACTERISTICS Slew Rate, Gain-Bandwidth Product vs Temperature 30 Undistorted Output Swing vs Frequency 10 VS = ±15V SLEW RATE (V/µs) 5V/DIV 6 GBW 4 SLEW RISE 10 2 10578 G10 0.5µs/DIV AV = +1 CL = 100pF 20 0 –50 –25 50 25 75 0 TEMPERATURE (°C) 100 GAIN BANDWIDTH PRODUCT (MHz) 8 SLEW FALL 30 PEAK-TO-PEAK OUTPUT SWING (V) Large-Signal Response VS = ±15V TA = 25°C 24 18 12 6 0 100k 125 1M FREQUENCY (Hz) 10578 G12 10578 G11 Small-Signal Response Gain, Phase Shift vs Frequency Capacitive Load Handling 80 100 140 140 60 GAIN 40 PHASE 160 AV = +1 CL = 100pF VS = ±15V 0 TA = 25°C CL = 10pF –20 10 100 1 60 OVERSHOOT (%) GAIN (dB) 20mV/DIV 80 PHASE SHIFT (DEGREES) 120 PHASE MARGIN = 58° 20 10578 G13 0.2µs/DIV VS = ±15V TA = 25°C 70 120 100 50 AV = –1 40 AV = +1 30 20 AV = 10 10 0 180 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) 10 100 1000 CAPACITIVE LOAD (pF) Settling Time Channel Separation vs Frequency 0.5mV FROM LEFT TO RIGHT: SETTLING TIME TO 10mV, 5mV, 2mV, 1mV, 0.5mV 0 0.5mV –5 10mV –10 VS = ±15V TA = 25°C 0 1 2 3 SETTLING TIME (µs) 10578 G16 140 LIMITED BY THERMAL INTERACTION AT DC = 132dB 120 RS = 10Ω RS = 1k LIMITED BY PIN-TO-PIN CAPACITANCE 100 VS = ±15V TA = 25°C VIN = 20VP-P TO 5kHz RL = 2k 80 60 Output Impedance vs Frequency 100 OUTPUT IMPEDANCE (Ω) 10mV 5 CHANNEL SEPARATION (dB) OUTPUT VOLTAGE SWING FROM 0V (V) 160 1 10 100 1k 10k FREQUENCY (Hz) 10000 10578 G15 10578 G14 10 10M VS = ±15V TA = 25°C AV = 100 10 AV = 10 1 AV = 1 100k 1M 10578 G17 0.1 1k 10k 100k FREQUENCY (Hz) 10M 10578 G18 10578fd 7 LT1057/LT1058 TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Rejection Ratio vs Frequency 60 40 20 120 14 COMMON MODE RANGE (V) 12 11 ±10 –11 –12 PSRR CMRR 100 –14 10 100 1k 10k 100k FREQUENCY (Hz) 1M VS = ±15V –15 50 0 –50 TEMPERATURE (°C) 10M 140 SUPPLY CURRENT PER AMPLIFIER (mA) 100 POSITIVE SUPPLY 80 NEGATIVE SUPPLY 40 20 10 100 100k 10k 1k FREQUENCY (Hz) 1M 10M 50 40 2 VS = ±15V VS = ±10V 1 VS = ±15V TA = –55°C 30 20 TA = 25°C 10 TA = 125°C 0 TA = 125°C –10 TA = 25°C –20 –30 TA = –55°C –40 0 –50 –25 50 25 75 0 TEMPERATURE (°C) 10578 G22 125 25 75 TEMPERATURE (°C) Short-Circuit Current vs Time (One Output Shorted to Ground) 3 120 –25 10578 G21 Supply Current vs Temperature TA = 25°C 60 90 100 10578 G20 Power Supply Rejection Ratio vs Frequency POWER SUPPLY REJECTION RATIO (dB) 110 –13 10578 G19 0 VS = ±10V TO ±17V FOR PSRR VS = ±15V, VCM = ±10.5V FOR CMRR 13 SHORT-CIRCUIT CURRENT (mA) CMRR (dB) 80 0 15 VS = ±15V TA = 25°C 100 Common Mode and Power Supply Rejections vs Temperature CMRR, PSRR (dB) 120 Common Mode Range vs Temperature 100 –50 125 2 0 1 3 TIME FROM OUTPUT SHORT TO GROUND (MINUTES) 10578 G23 10578 G24 APPLICATIONS INFORMATION The LT1057 may be inserted directly in LF353, LF412, LF442, TL072, TL082 and OP-215 sockets. The LT1058 plugs into LF347, LF444, TL074 and TL084 sockets. Of course, all standard dual and quad bipolar op amps can also be replaced by these devices. with RS and RF in the kilohm range, this pole can create excess phase shift and even oscillation. A small capacitor (CF) in parallel with RF eliminates this problem. With RS (CS + CIN) = RF CF, the effect of the feedback pole is completely removed. CF High Speed Operation When the feedback around the op amp is resistive (RF) a pole will be created with RF, the source resistance and capacitance (RS , CS), and the amplifier input capacitance (CIN ≈ 4pF). In low closed loop gain configurations and RF – RS CS CIN OUTPUT + 10578 F01 10578fd 8 LT1057/LT1058 APPLICATIONS INFORMATION Settling time is measured in a test circuit which can be found in the LT1055/LT1056 data sheet and in Application Note 10. Achieving Picoampere/Microvolt Performance In order to realize the picoampere/microvolt level accuracy of the LT1057/LT1058, proper care must be exercised. For example, leakage currents in circuitry external to the op amp can significantly degrade performance. High quality insulation should be used (e.g., TeflonTM, Kel-F); cleaning of all insulating surfaces to remove fluxes and other residues will probably be required. Surface coating may be necessary to provide a moisture barrier in high humidity environments. Board leakage can be minimized by encircling the input circuitry with a guard ring operated at a potential close to that of the inputs; in inverting configurations, the guard ring should be tied to ground, in noninverting connections, to the inverting input. Guarding both sides of the printed circuit board is required. Bulk leakage reduction depends on the guard ring width. The LT1057/LT1058 have the lowest offset voltage of any dual and quad JFET input op amps available today. However, the offset voltage and its drift with time and temperature are still not as good as on the best bipolar amplifiers (because the transconductance of FETs is considerably lower than that of bipolar transistors). Conversely, this lower transconductance is the main cause of the significantly faster speed performance of FET input op amps. Teflon is a trademark of DuPont. (A) ±16V Sine Wave Input Offset voltage also changes somewhat with temperature cycling. The AM grades show a typical 40µV hysteresis (50µV on the M grades) when cycled over the –55°C to 125°C temperature range. Temperature cycling from 0°C to 70°C has a negligible (less than 20µV) hysteresis effect. The offset voltage and drift performance are also affected by packaging. In the plastic N package, the molding compound is in direct contact with the chip, exerting pressure on the surface. While NPN input transistors are largely unaffected by this pressure, JFET device drift is degraded. Consequently for best drift performance, as shown in the Typical Performance Characteristics distribution plots, the J or H packages are recommended. In applications where speed and picoampere bias currents are not necessary, Linear Technology offers the bipolar input, pin compatible LT1013 and LT1014 dual and quad op amps. These devices have significantly better DC specifications than any JFET input device. Phase Reversal Protection Most industry standard JFET input single, dual and quad op amps (e.g., LF156, LF351, LF353, LF411, LF412, OP-15, OP-16, OP-215, TL084) exhibit phase reversal at the output when the negative common mode limit at the input is exceeded (i.e., below –12V with ±15V supplies). The photos below show a ±16V sine wave input (A), the response of an LF412A in the unity gain follower mode (B), and the response of the LT1057/LT1058 (C). The phase reversal of photo (B) can cause lock-up in servo systems. The LT1057/LT1058 does not phase-reverse due to a unique phase reversal protection circuit. (B) LF412A Output (C) LT1057/LT1058 Output All Photos 5V/Div Vertical Scale, 50µs/Div Horizontal Scale 10578fd 9 LT1057/LT1058 TYPICAL APPLICATIONS Low Noise, Wideband, Gain = 100 Amplifier with High Input Impedance 4.3k 470Ω – 2.4k 1/4 LT1058 7.5k 500Ω + 4.3k 470Ω 2.4k – – + 1/4 LT1058 1/4 LT1058 OUTPUT + INPUT 4.3k 470Ω 2.4k –3dB BANDWIDTH = 350kHZ GAIN-BANDWIDTH PRODUCT = 35MHz WIDEBAND NOISE = 13nV/√Hz = 7.5nV/√Hz REFERRED TO INPUT √3 RMS NOISE DC TO FULL BANDWIDTH = 7µV – 1/4 LT1058 + 10578 TA02 Wideband, High Input Impedance, Gain = 1000 Amplifier 1k 4.7k 1k 4.7k – – 1/4 LT1058 INPUT + + – 1/4 LT1058 + 1/4 LT1058 + – 1/4 LT1058 4.7k OUTPUT 4.7k 1k 1k 100Ω –3dB BANDWIDTH = 400kHz GAIN-BANDWIDTH PRODUCT = 400MHz WIDEBAND NOISE = 13nV/√Hz REFERRED TO INPUT 10578 TA03 Low Distortion, Crystal Stabilized Oscillator 130Ω CRYSTAL 20kHz NT CUT COMMON MODE SUPPRESSION – 1/2 LT1057 100k – 15pF 0.01µF 100Ω #327 LAMP + 1VRMS OUT 20kHz 0.005% DISTORTION OSCILLATOR 1/2 LT1057 + 10578 TA04 10 10578fd LT1057/LT1058 TYPICAL APPLICATIONS Fast, Precision Bridge Amplifier – 330pF 10k 1/2 LT1057 + 10k 1k – 330pF 1/2 LT1057 RLOAD LT1010 LT1010 + INPUT SLEW RATE = 14V/µs OUTPUT CURRENT TO LOAD = 150mA LOAD CAPACITANCE: UP TO 1µF 10578 TA05 Analog Divider 80.6k* 20k 1µF LTC1043 7 8 –5V 6 LT1004 1.2V 12 5V LTC1043 1k + B INPUT 5 1µF – 1/2 LT1057 + 2 0.001 POLYSTYRENE OUTPUT = A B –5V 11 13 1µF A INPUT 75k* 14 16 – 1/2 LT1057 + 30pF 22k 330k 2N2907 1µF * 1% FILM –5V 10578 TA06 10578fd 11 LT1057/LT1058 TYPICAL APPLICATIONS Bipolar Input (AC) V/F Converter –5V LTC1043 1k 6 LT1004 2.5V 2 5 0.1µF 16 18 1M* 15 3 1M* 0.01 POLYSTYRENE 1/4 LT1058 1µF INPUT ±1V + – – 2N3906 + 5V 36.5k* – 10k 1M* 1/4 LT1058 1M* 10k + DATA OUTPUT 0kHz TO 1kHz 1/4 LT1058 22k 150pF 10k –5V 0.1µF – 1/4 LT1058 *1% FILM MATCH 1M RESISTORS TO 0.05% SIGN BIT + 10578 TA07 12-Bit A/D Converter 10k 0.001µF – CLOCK 1/4 LT1058 0.01µF EIN 5V – 100k* + + FLIP-FLOP 15V INTEGRATOR 14 2 1/4 LT1058 10k 2k 10k 4 3 74C74 5 –5V 6 10k 7 + 180pF 6.8k 1 BOUT 15V –15V 15 LTC1043 CURRENT SWITCH 17 –15V 2N3906 AOUT – OUTPUT GATE 16 820Ω 18 LEVEL SHIFT –15V 3 1/4 LT1058 2N4393 – A DATA OUTPUT = OUT BOUT *VISHAY S-102 RESISTOR 10k 10k 1k + 4 10k 1/4 LT1058 68pF OUT LT1021 IN 10V NC GND 95k* 10k –15V 10578 TA08 10578fd 12 LT1057/LT1058 TYPICAL APPLICATIONS Instrumentation Amplifier with Shield Driver 3 + – RF 9.1k GUARD + INPUT + 10 – 9 1/4 LT1058 8 – 10k 1k 1 1/4 LT1058 2 RG 1k 15V 5 + 6 RG 1k 4 1/4 LT1058 – 7 OUTPUT 11 –15V GUARD 13 12 – 1/4 LT1058 14 RF 9.1k GAIN = 10(1+RF/RG) ≈ 100 IB = 5pA RIN = 1012Ω BW = 350kHz 10k 1k + 10578 TA09 100dB Range Logarithmic Photodiode Amplifier 6 Q4 4 10 5 2k 11 1M Q5 1M FULL-SCALE 750k* TRIM 12 IP 50k* 500pF – 1/2 LT1057 + – 0.033µF LT1021-10V 15V IN OUT + 10k* – LM301A 10k* 50k DARK TRIM 3k 2 0.01µF 1/2 LT1057 1 Q2 EOUT 3 + 2k 33Ω 14 15 Q1 7 Q3 13 9 15V = HP-5082-4204 PIN PHOTODIODE. Q1–Q5 = CA3096. CONNECT SUBSTRATE OF CA3096 ARRAY TO Q4’s EMITTER. *1% RESISTOR 100dB RANGE LOGARITHMIC PHOTODIODE AMPLIFIER 8 LIGHT (900µM) RESPONSE DATA DIODE CURRENT CIRCUIT OUTPUT 1MW 100µW 10µW 1µW 100nW 10nW 350µA 35µA 3.5µA 350nA 35nA 3.5nA 10.0V 7.85V 5.70V 3.55V 1.40V –0.75V 10578 TA10 10578fd 13 LT1057/LT1058 PACKAGE DESCRIPTION H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320) .027 – .045 (0.686 – 1.143) PIN 1 45°TYP .028 – .034 (0.711 – 0.864) .200 (5.080) TYP .335 – .370 (8.509 – 9.398) DIA .305 – .335 (7.747 – 8.509) .040 (1.016) MAX .050 (1.270) MAX SEATING PLANE .165 – .185 (4.191 – 4.699) GAUGE PLANE .010 – .045* (0.254 – 1.143) .110 – .160 (2.794 – 4.064) INSULATING STANDOFF REFERENCE PLANE .500 – .750 (12.700 – 19.050) .016 – .021** (0.406 – 0.533) *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8(TO-5) 0.200 PCD 0801 J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .300 BSC (7.62 BSC) .008 – .018 (0.203 – 0.457) CORNER LEADS OPTION (4 PLCS) 0° – 15° .015 – .060 (0.381 – 1.524) .023 – .045 (0.584 – 1.143) HALF LEAD OPTION .045 – .068 (1.143 – 1.650) FULL LEAD OPTION NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .405 (10.287) MAX .005 (0.127) MIN .200 (5.080) MAX 8 .014 – .026 (0.360 – 0.660) .100 (2.54) BSC 5 .025 (0.635) RAD TYP .220 – .310 (5.588 – 7.874) 1 .045 – .065 (1.143 – 1.651) 6 7 2 3 4 .125 3.175 MIN J8 0801 J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .200 (5.080) MAX .300 BSC (7.62 BSC) .015 – .060 (0.381 – 1.524) .008 – .018 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .005 (0.127) MIN .785 (19.939) MAX 14 13 12 11 10 9 8 0° – 15° .045 – .065 (1.143 – 1.651) .014 – .026 (0.360 – 0.660) .100 (2.54) BSC .025 (0.635) .125 RAD TYP (3.175) MIN .220 – .310 (5.588 – 7.874) 1 2 3 4 5 6 7 J14 0801 OBSOLETE PACKAGES 10578fd 14 LT1057/LT1058 PACKAGE DESCRIPTION N Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510 Rev I) .300 – .325 (7.620 – 8.255) 8 .008 – .015 (0.203 – 0.381) ( +.035 .325 –.015 8.255 +0.889 –0.381 7 6 .130 ±.005 (3.302 ±0.127) .045 – .065 (1.143 – 1.651) .400* (10.160) MAX 5 .065 (1.651) TYP .120 (3.048) .020 MIN (0.508) MIN .018 ±.003 .255 ±.015* (6.477 ±0.381) ) 1 2 3 .100 (2.54) BSC 4 (0.457 ±0.076) N8 REV I 0711 NOTE: 1. DIMENSIONS ARE INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) N Package 14-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510 Rev I) .770* (19.558) MAX .300 – .325 (7.620 – 8.255) 14 .008 – .015 (0.203 – 0.381) ( +.035 .325 –.015 8.255 +0.889 –0.381 13 11 12 10 9 8 .255 ±.015* (6.477 ±0.381) ) 1 3 2 5 4 .045 – .065 (1.143 – 1.651) .130 ±.005 (3.302 ±0.127) 6 .020 (0.508) MIN .065 (1.651) TYP .005 (0.127) .100 MIN (2.54) BSC .120 (3.048) MIN 7 NOTE: 1. DIMENSIONS ARE .018 ±.003 (0.457 ±0.076) N14 REV I 0711 INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610 Rev G) .050 BSC .189 – .197 (4.801 – 5.004) NOTE 3 .045 ±.005 8 .245 MIN .160 ±.005 6 5 .150 – .157 (3.810 – 3.988) NOTE 3 .228 – .244 (5.791 – 6.197) .030 ±.005 TYP 1 RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN 7 2 3 4 .053 – .069 (1.346 – 1.752) .004 – .010 (0.101 – 0.254) .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .014 – .019 (0.355 – 0.483) TYP .050 (1.270) BSC INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE 0°– 8° TYP .016 – .050 (0.406 – 1.270) SO8 REV G 0212 10578fd 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. 15 LT1057/LT1058 TYPICAL APPLICATION SW Package 16-Lead Plastic Small Outline (Wide .300 Inch) (Reference LTC DWG # 05-08-1620) .050 BSC .045 ±.005 .030 ±.005 TYP .398 – .413 (10.109 – 10.490) NOTE 4 16 N 15 14 13 12 11 10 9 N .325 ±.005 .420 MIN .394 – .419 (10.007 – 10.643) NOTE 3 1 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT .005 (0.127) RAD MIN .009 – .013 (0.229 – 0.330) 1 .291 – .299 (7.391 – 7.595) NOTE 4 .010 – .029 × 45° (0.254 – 0.737) 2 3 4 5 .093 – .104 (2.362 – 2.642) 6 7 8 .037 – .045 (0.940 – 1.143) 0° – 8° TYP .050 (1.270) BSC NOTE 3 NOTE: 1. DIMENSIONS IN .004 – .012 (0.102 – 0.305) .014 – .019 (0.356 – 0.482) TYP .016 – .050 (0.406 – 1.270) INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. 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 4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) S16 (WIDE) 0502 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1055/6 Precision, High Speed, JFET Input Operational Amplifiers 12V/µs Slew Rate, 5.5MHz Bandwidth LT1880 SOT-23, Rail-to-Rail Output, Picoamp Input Precision Op Amps 150µV Max Offset Voltage, 900pA Max Input Bias Current LT1881/2 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps 50µV Max Offset Voltage, 200pA Max Input Bias Current LT1884/5 Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps 50µV Max Offset Voltage, 400pA Max Input Bias Current LT6010 135µA, 14nV/rtHz, Rail-to-Rail Output, Precision Low Power Op Amp with Shutdown 35µV Max Offset Voltage, 300pA Max Input Bias Current LT6011/12 Dual/Quad 135µA, 14nV/rtHz, Rail-to-Rail Output Precision Low Power Op Amp 60µV Max Offset Voltage, 300pA Max Input Bias Current LTC6078/9 Micropower Precision, Dual/Quad CMOS Rail-to-Rail Input/Output Amplifiers Maximum Offset Drift: 0.7µV/°C LTC6241/2 Dual/Quad 18MHz, Low Noise, Rail-to-Rail CMOS Op Amps O.1Hz to 10Hz Noise: 550n Vpp 10578fd 16 Linear Technology Corporation LT 0812 REV D • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com  LINEAR TECHNOLOGY CORPORATION 1989