LT1191_01

LT1191 Ultrahigh Speed Operational Amplifier FEATURES s s s s s s s s s s DESCRIPTIO Gain Bandwidth Product, AV = 1: 90MHz Slew Rate: 450V/µs Low Cost Output Current: ± 50mA Settling Time: 110ns to 0.1% Differential Gain Error: 0.07%, (RL = 1k) Differential Phase Error: 0.02°, (RL = 1k) High Open-Loop Gain: 20V/mV Min Single Supply 5V Operation Output Shutdown The LT®1191 is a video operational amplifier optimized for operation on ±5V and a single 5V supply. Unlike many high speed amplifiers, this amplifier features high open-loop gain, over 90dB, and the ability to drive heavy loads to a full-power bandwidth of 20MHz at 7VP-P. In addition to its very fast slew rate, the LT1191 features a unity-gain-stable bandwidth of 90MHz. Because the LT1191 is a true operational amplifier, it is an ideal choice for wideband signal conditioning, fast integrators, active filters, and applications requiring speed, accuracy and low cost. The LT1191 is available in 8-pin PDIP and SO packages with standard pinouts. The normally unused Pin 5 is used for a shutdown feature that shuts off the output and reduces power dissipation to a mere 15mW. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIO S s s s s s Video Cable Drivers Video Signal Processing Fast Integrators Pulse Amplifiers D/A Current to Voltage Conversion TYPICAL APPLICATIO 5V 7 VIN1 3 Video MUX Cable Driver + – LT1191 SHDN 5 4 –5V 1k 6 Inverter Pulse Response 2 CMOS IN CH. SELECT 1k 1k 75Ω CABLE 75Ω –5V 5V VIN2 3 5 74HC04 1k 74HC04 + SHDN LT1191 7 6 4 –5V LT1191 • TA01 2 – 1k AV = – 1, CL = 10pF SCOPE PROBE 1k U LT1190 • TA02 U U 1 LT1191 ABSOLUTE (Note 1) AXI U RATI GS PACKAGE/ORDER I FOR ATIO TOP VIEW BAL 1 –IN 2 +IN 3 V– 4 N8 PACKAGE 8-LEAD PDIP 8 7 6 5 BAL V+ OUT SHDN Total Supply Voltage (V + to V –) ............................. 18V Differential Input Voltage ........................................ ± 6V Input Voltage .......................................................... ± VS Output Short-Circuit Duration (Note 2) ........ Continuous Operating Temperature Range LT1191M (OBSOLETE) ............. – 55°C to 125°C LT1191C ............................................... 0°C to 70°C Maximum Junction Temperature ......................... 150°C Storage Temperature Range ................. –65°C to 150°C Lead Temperature (Soldering, 10 sec)................. 300°C ORDER PART NUMBER LT1191CN8 LT1191CS8 S8 PART MARKING 1191 LT1191MJ8 LT1191CJ8 S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 100°C/W (N8) TJMAX = 150°C, θJA = 150°C/W (S8) J8 PACKAGE 8-LEAD CERDIP TJMAX = 150°C, θJA = 100°C/W OBSOLETE PACKAGE Consider the N8 or S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS SYMBOL VOS IOS IB en in RIN CIN CMRR PSRR AVOL PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Noise Voltage Input Noise Current Input Resistance Input Capacitance Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Differential Mode Common Mode AV = +1 (Note 3) fO = 10kHz fO = 10kHz VS = ± 5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. MIN LT1191M/C TYP MAX 1 0.2 ± 0.5 25 4 70 5 2 –2.5 60 60 20 4 6 ± 3.7 ± 6.7 325 17.2 100 75 75 45 9 12 ±4 ±7 450 23.9 90 130 1.25 2.2 25 110 160 3.5 5 9 1.7 ± 2.5 UNITS mV mV µA µA nV/√Hz pA/√Hz kΩ MΩ pF V dB dB V/mV V/mV V/mV V V V/µs MHz MHz ns ns ns % ns CONDITIONS N8 Package SO-8 Package VCM = – 2.5V to 3.5V VS = ± 2.375V to ± 8V RL = 1k, VO = ± 3V RL = 100Ω, VO = ± 3V VS = ± 8V, RL = 100Ω, VO = ± 5V VS = ± 5V, RL = 1k VS = ± 8V, RL = 1k AV = –2, RL = 1k (Notes 4, 9) VO = 6VP-P (Note 5) AV = 50, VO = ±1.5V, 20% to 80% (Note 9) AV = 1, VO = ±125mV, 10% to 90% AV = 1, VO = ±125mV, 50% to 50% AV = 1, VO = ±125mV 3V Step, 0.1% (Note 6) VOUT SR FPBW GBW tr1, t f1 tr2, t f2 tPD ts Output Voltage Swing Slew Rate Full-Power Bandwidth Gain Bandwidth Product Rise Time, Fall Time Rise Time, Fall Time Propagation Delay Overshoot Settling Time 2 U W U U WW W LT1191 ELECTRICAL CHARACTERISTICS SYMBOL Diff AV Diff Ph IS ISHDN tON tOFF PARAMETER Differential Gain Differential Phase Supply Current Shutdown Supply Current Shutdown Pin Current Turn On Time Turn Off Time Pin 5 at VS = ± 5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. MIN LT1191M/C TYP MAX 0.15 0.09 32 V– 1.3 20 100 400 38 2 50 UNITS % DegP-P mA mA µA ns ns CONDITIONS RL = 150Ω, AV = 2 (Note 7) RL = 150Ω, AV = 2 (Note 7) Pin 5 at V – Pin 5 from V – to Ground, RL = 1k Pin 5 from Ground to V –, RL = 1k VS+ = 5V, VS– = 0V, VCM = 2.5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. SYMBOL VOS IOS IB CMRR AVOL VOUT SR GBW IS ISHDN PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Slew Rate Gain Bandwidth Product Supply Current Shutdown Supply Current Shutdown Pin Current Pin 5 at V – Pin 5 at V– (Note 3) VCM = 2V to 3.5V RL = 100Ω to Ground, VO = 1V to 3V RL = 100Ω to Ground AV = –1, VO = 1V to 3V VOUT High VOUT Low 2 55 5 3.6 70 9 3.8 0.25 250 80 29 1.2 20 36 2 50 0.4 CONDITIONS N8 Package SO-8 Package MIN LT1191M/C TYP MAX 2 0.2 ± 0.5 7 9 1.2 ± 1.5 3.5 UNITS mV mV µA µA V dB V/mV V V V/µs MHz mA mA µA The q denotes the specifications which apply over the full operating temperature range of – 55°C ≤ TA ≤ 125°C. VS = ± 5V, Pin 5 open circuit unless otherwise noted. SYMBOL VOS ∆VOS /∆T IOS IB CMRR PSRR AVOL VOUT IS ISHDN PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Supply Current Shutdown Supply Current Shutdown Pin Current Pin 5 at V – (Note 8) Pin 5 at V– VCM = – 2.5V to 3.5V VS = ± 2.375V to ± 5V RL = 1k, VO = ± 3V RL = 100, VO = ± 3V RL = 1k CONDITIONS N8 Package q q q q q q q q q q q q MIN LT1191M TYP 2 8 0.2 ± 0.5 MAX 8 2 ± 2.5 UNITS mV µV/°C µA µA dB dB V/mV V/mV V 55 55 16 2 ± 3.7 70 70 32 5 ± 3.9 32 1.5 20 38 2.5 mA mA µA 3 LT1191 ELECTRICAL CHARACTERISTICS SYMBOL VOS ∆VOS /∆T IOS IB CMRR PSRR AVOL VOUT IS ISHDN PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Supply Current Shutdown Supply Current Shutdown Pin Current The q denotes the specifications which apply over the full operating temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, Pin 5 open circuit unless otherwise noted. CONDITIONS N8 Package SO-8 Package q q q q MIN LT1191C TYP 2 8 0.2 ± 0.5 MAX 6 10 1.7 ± 2.5 UNITS mV mV µV/°C µA µA dB dB V/mV V/mV V VCM = – 2.5V to 3.5V VS = ± 2.375V to ± 5V RL = 1k, VO = ± 3V RL = 100, VO = ± 3V RL = 1k Pin 5 at V– (Note 8) q q q q q q q q 58 58 20 3 ± 3.7 70 70 40 9 ± 3.9 32 1.4 20 38 2.1 mA mA µA Pin 5 at V – Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: A heat sink is required to keep the junction temperature below absolute maximum when the output is shorted. Note 3: Exceeding the input common mode range may cause the output to invert. Note 4: Slew rate is measured between ± 1V on the output, with a ± 1.5V input step. Note 5: Full-power bandwidth is calculated from the slew rate measurement: FPBW = SR/2πVP. Note 6: Settling time measurement techniques are shown in “Take the Guesswork Out of Settling Time Measurements,” EDN, September 19, 1985. AV = –1, RL = 1k. Note 7: NTSC (3.58MHz). For RL = 1k, Diff AV = 0.07%, Diff Ph = 0.02°. Note 8: See Applications section for shutdown at elevated temperatures. Do not operate the shutdown above TJ > 125°C. Note 9: AC parameters are 100% tested on the ceramic and plastic DIP packaged parts (J and N suffix) and are sample tested on every lot of the SO packaged parts (S suffix). Optional Offset Nulling Circuit 5V 3 + – 1 7 LT1191 6 4 8 –5V 2 INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ± 100mV RANGE WITH A 1kΩ TO 10kΩ POTENTIOMETER LT1191 • TA03 4 LT1191 TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Common Mode Voltage 4 3 VS = ±5V –0.3 COMMON MODE VOLTAGE (V) INPUT BIAS CURRENT (µA) INPUT BIAS CURRENT (µA) 2 1 25°C 0 –1 –2 –4 –3 1 3 –2 –1 0 2 COMMON MODE VOLTAGE (V) 4 –55°C 125°C Equivalent Input Noise Voltage vs Frequency EQUIVALENT INPUT NOISE CURRENT (pA/√Hz) EQUIVALENT INPUT NOISE VOLTAGE (nV/ √Hz) 300 250 200 150 100 50 0 10 100 SUPPLY CURRENT (mA) 1k 10k FREQUENCY (Hz) Shutdown Supply Current vs Temperature 5.0 VS = ±5V 50k SHUTDOWN SUPPLY CURRENT (mA) OPEN-LOOP VOLTAGE GAIN (V/V) VSHDN = – VEE + 0.4V 4.0 3.5 3.0 VSHDN = – VEE + 0.2V 2.5 2.0 VSHDN = –VEE 1.5 1.0 –50 –25 0 25 75 50 TEMPERATURE (°C) 100 125 40k RL = 1k OPEN-LOOP VOLTAGE GAIN (V/V) 4.5 UW LT1191 • TPC01 Input Bias Current vs Temperature VS = ±5V 10 8 6 4 2 0 –2 –4 –6 –8 –0.8 –50 –10 –25 50 0 25 75 TEMPERATURE (°C) 100 125 Common Mode Voltage vs Supply Voltage –55°C 25°C +V COMMON MODE 125°C –0.4 +IB –0.5 IOS –0.6 –IB –0.7 –V COMMON MODE –55°C 25°C 125°C 0 2 6 4 8 ±V SUPPLY VOLTAGE (V) 10 LT1191 • TPC02 LT1191 • TPC03 Equivalent Input Noise Current vs Frequency 80 VS = ±5V TA = 25°C RS = 100k Supply Current vs Supply Voltage 40 VS = ±5V TA = 25°C RS = 0 Ω 60 30 –55°C 25°C 20 125°C 40 20 10 0 10 100 1k 10k FREQUENCY (Hz) 100k 0 0 2 8 4 6 ± SUPPLY VOLTAGE (V) 10 100k LT1191 • TPC04 LT1191 • TPC05 LT1191 • TPC06 Open-Loop Voltage Gain vs Temperature 50k Open-Loop Voltage Gain vs Load Resistance VS = ± 5V VO = ± 3V TA = 25°C 40k 30k 30k 20k RL = 100Ω VS = ± 5V VO = ± 3V –25 50 0 25 75 TEMPERATURE (°C) 100 125 20k 10k 10k 0 –50 0 10 100 LOAD RESISTANCE (Ω) 1000 LT1191 • TPC09 LT1191 • TPC07 LT1191 • TPC08 5 LT1191 TYPICAL PERFOR A CE CHARACTERISTICS Gain, Phase vs Frequency 100 80 VOLTAGE GAIN (dB) PHASE GAIN BANDWIDTH PRODUCT (MHz) OUTPUT IMPEDANCE (Ω ) 60 40 20 0 –20 100k GAIN 1M 10M 100M FREQUENCY (Hz) Unity Gain Frequency and Phase Margin vs Temperature 110 UNITY GAIN FREQUENCY (MHz) COMMON MODE REJECTION RATIO (dB) 48 PHASE MARGIN (DEGREES) 60 50 40 30 20 10 100k POWER SUPPLY REJECTION RATIO (dB) VS = ±5V RL = 1k PHASE MARGIN 100 UNITY GAIN FREQUENCY 90 42 40 80 38 36 70 –50 –25 25 75 0 50 TEMPERATURE (°C) 100 34 125 Output Short-Circuit Current vs Temperature 100 OUTPUT SHORT-CIRCUIT CURRENT (mA) 6 90 OUTPUT VOLTAGE SWING (V) OUTPUT SWING (V) 80 70 –50 –25 50 0 25 75 TEMPERATURE (°C) 6 UW LT1191 • TPC10 LT1191 • TPC12 Gain Bandwidth Product vs Supply Voltage 100 VS = ±5V TA = 25°C RL = 1k 80 60 40 20 0 –20 1G 95 100 Output Impedance vs Frequency VS = ±5V TA = 25°C PHASE MARGIN (DEGREES) 85 TA = – 55°C, 25°C, 125°C 10 75 1 AV = –100 0.1 AV = –1 AV = –10 65 55 0 2 4 8 6 ±V SUPPLY VOLTAGE (V) 10 0.01 1k 10k 100k 1M FREQUENCY (Hz) 10M 100M LT1191 • TPC11 LT1191 • TPC13 Common Mode Rejection Ratio vs Frequency 50 70 VS = ±5V TA = 25°C RL = 1k Power Supply Rejection Ratio vs Frequency 80 60 40 +PSRR 20 0 –20 –40 VS = ±5V VRIPPLE = ± 300mV TA = 25°C –PSRR 46 44 1M 10M 100M FREQUENCY (Hz) 1G 1k 10k 1M 100k FREQUENCY (Hz) 10M 100M LT1191 • TPC14 LT1191 • TPC15 Output Swing vs Supply Voltage 10 8 RL = 1k +VOUT, 25°C, 125°C, –55°C 5 Output Voltage Swing vs Load Resistance VS = ± 5V TA = – 55°C TA = 25°C 1 TA = 125°C VS = ± 5V 3 4 2 0 –2 –4 –6 –8 –10 –VOUT, –55°C, 25°C,125°C –1 TA = 125°C TA = – 55°C, 25°C –5 –3 100 125 0 2 8 4 6 ± V SUPPLY VOLTAGE (V) 10 10 100 LOAD RESISTANCE (Ω) 1000 LT1191 • TPC18 LT1191 • TPC16 LT1191 • TPC17 LT1191 TYPICAL PERFOR A CE CHARACTERISTICS Slew Rate vs Temperature 600 VS = ± 5V TA = 25°C RL = 1k VO = ± 2V 4 –SLEW RATE OUTPUT VOLTAGE STEP (V) OUTPUT VOLTAGE STEP (V) SLEW RATE (V/µs) 500 +SLEW RATE 400 300 –50 –25 0 25 50 75 TEMPERATURE (°C) Large-Signal Transient Response AV = 1, CL = 10pF SCOPE PROBE UW 100 LT1191 • TPC19 LT1191 • TPC22 Output Voltage Step vs Settling Time, AV = –1 VS = ±5V TA = 25°C RL = 1k 10mV 4 Output Voltage Step vs Settling Time, AV = 1 1mV 2 2 10mV 1mV 0 10mV –2 1mV 0 10mV –2 VS = ±5V TA = 25°C RL = 1k –4 50 70 90 110 130 150 170 190 210 230 SETTLING TIME (ns) LT1191 • TPC21 1mV –4 125 20 40 60 80 100 120 SETTLING TIME (ns) 140 160 LT1191 • TPC20 Small-Signal Transient Response Output Overload LT1191 • TPC23 LT1191 • TPC24 AV = 1, SMALL-SIGNAL RISE TIME, WITH FET PROBES AV = – 1, VIN = 12VP-P 7 LT1191 APPLICATIO S I FOR ATIO Power Supply Bypassing The LT1191 is quite tolerant of power supply bypassing. In some applications a 0.1µF ceramic disc capacitor placed 1/2 inch from the amplifier is all that is required. A scope photo of the amplifier output with no supply bypassing is used to demonstrate this bypassing tolerance, RL = 1kΩ. No Supply Bypass Capacitors LT1191 • TA04 AV = – 1, IN DEMO BOARD, RL = 1kΩ Supply bypassing can also affect the response in the frequency domain. It is possible to see a slight rise in the frequency response at 130MHz depending on the gain configuration, supply bypass, inductance in the supply leads and printed circuit board layout. This can be further minimized by not using a socket. Closed-Loop Voltage Gain vs Frequency 20 CLOSED-LOOP VOLTAGE GAIN (dB) VS = ± 5V TA = 25°C RL = 1k AV = 2 AV = 1 VOUT 1V/DIV 0V 0V VOUT 1mV/DIV 10 0 –10 –20 100k 1M 10M 100M FREQUENCY (Hz) 1G LT1191 • TA05 8 U In most applications, and those requiring good settling time, it is important to use multiple bypass capacitors. A 0.1µF ceramic disc in parallel with a 4.7µF tantalum is recommended. Two oscilloscope photos with different bypass conditions are used to illustrate the settling time characteristics of the amplifier. Note that although the output waveform looks acceptable at 1V/DIV, when amplified to1mV/DIV the settling time to 2mV is 2.61µs for the 0.1µF bypass; the time drops to 143ns with multiple bypass capacitors. Settling Time Poor Bypass VOUT 1V/DIV 0V 0V VOUT 1mV/DIV LT1191 • TA06 W UU SETTLING TIME TO 2mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF Settling Time Good Bypass LT1191 • TA07 SETTLING TIME TO 2mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM LT1191 APPLICATIO S I FOR ATIO Cable Terminations The LT1191 operational amplifier has been optimized as a low cost video cable driver. The ± 50mA guaranteed output current enables the LT1191 to easily deliver 7.5VP-P into 100Ω, while operating on ± 5V supplies or 2.6VP-P on a single 5V supply. When driving a cable it is important to terminate the cable to avoid unwanted reflections. This can be done in one of two ways: single termination or double termination. With single termination, the cable must be terminated at the receiving end (75Ω to ground) to absorb unwanted energy. The best performance can be obtained by double termination (75Ω in series with the output of the amplifier, and 75Ω to ground at the other end of the cable). This termination is preferred because reflected energy is absorbed at each end of the cable. When using the double termination technique it is important to note that the signal is attenuated by a factor of 2, or 6dB. This can be compensated for by taking a gain of 2, or 6dB in the amplifier. The cable driver has a –3dB bandwidth of 100MHz while driving the 150Ω load. Note the response can be improved by lowering the impedance of the feedback elements. Double Terminated Cable Driver 5V 3+ 7 6 LT1191 2– 4 –5V 75Ω RFB CABLE 75 Ω LT1191 • TA09 RG Cable Driver Voltage Gain vs Frequency 10 CLOSED-LOOP VOLTAGE GAIN (dB) AV = 2 RFB = 1k RG = 330Ω R FB = 1k RG = 1k VS = ±5V TA = 25°C 5 0 AV = 1 RFB = 300Ω RG = 300 Ω –5 –10 100k 1M 10M FREQUENCY (Hz) 100M LT1191 • TA10 LT1191 • TA08 U Using the Shutdown Feature The LT1191 has a unique feature that allows the amplifier to be shut down for conserving power or for multiplexing several amplifiers onto a common cable. The amplifier will shut down by taking Pin 5 to V –. In shutdown, the amplifier dissipates 15mW while maintaining a true high impedance output state of 15kΩ in parallel with the feedback resistors. The amplifiers must be used in a noninverting configuration for MUX applications. In inverting configurations the input signal is fed to the output through the feedback components. The following scope photos show that with very high RL, the output is truly high impedance; the output slowly decays toward ground. Additionally, when the output is loaded with as little as 1kΩ the amplifier shuts off in 400ns. This shutoff can be under the control of HC CMOS operating between 0V and –5V. Output Shutdown 0V – 5V VSHDN VOUT 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL = ∞ W UU Output Shutdown 0V VSHDN – 5V VOUT 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL = 1kΩ 9 LT1191 APPLICATI S I FOR ATIO The ability to maintain shutoff is shown on the curve Shutdown Supply Current vs Temperature in the Typical Performance Characteristics section. At very high elevated temperatures it is important to hold the SHDN pin close to the negative supply to keep the supply current from increasing. Murphy Circuits There are several precautions the user should take when using the LT1191 in order to realize its full capability. Although the LT1191 can drive a 30pF load, isolating the capacitance with 10Ω can be helpful. Precautions primarily have to do with driving large capacitive loads. Driving Capacitive Load LT1191 • TA11 AV = – 1, IN DEMO BOARD, CL = 30pF 5V 3 + LT1191 7 6 4 –5V COAX 2 2 – An Unterminated Cable Is a Large Capacitive Load 10 U Other precautions include: 1. Use a ground plane (see Design Note 50, High Frequency Amplifier Evaluation Board). 2. Do not use high source impedances. The input capacitance of 2pF and RS = 10k, for instance, will give an 8MHz – 3dB bandwidth. 3. PC board socket may reduce stability. 4. A feedback resistor of 1k or lower reduces the effects of stray capacitance at the inverting input. (For instance, closed-loop gain of 2 can use RFB = 300Ω and RG = 300Ω.) Driving Capacitive Load LT1191 • TA12 W U UO AV = – 1, IN DEMO BOARD, CL = 30pF WITH 10Ω ISOLATING RESISTOR Murphy Circuits 5V 3 5V 3 6 2 + – 7 LT1191 4 –5V 1X SCOPE PROBE + – 7 LT1191 4 –5V 6 SCOPE PROBE LT1191 • TA13 A 1X Scope Probe Is a Large Capacitive Load A Scope Probe on the Inverting Input Reduces Phase Margin LT1191 SI PLIFIED SCHE ATIC 7 V+ VBIAS VBIAS CM + – 3 CFF 2 +V +V 6 VOUT 5 SHDN *SUBSTRATE DIODE, DO NOT FORWARD BIAS PACKAGE DESCRIPTIO CORNER LEADS OPTION (4 PLCS) 0.300 BSC (0.762 BSC) 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.008 – 0.018 (0.203 – 0.457) 0° – 15° 1 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 2 3 4 J8 1298 NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 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. U W W * 4 V– LT1191 • TA14 1 BAL 8 BAL J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 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 0.220 – 0.310 (5.588 – 7.874) OBSOLETE PACKAGE 11 LT1191 PACKAGE DESCRIPTIO U N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.400* (10.160) MAX 8 7 6 5 0.045 – 0.065 (1.143 – 1.651) 0.130 ± 0.005 (3.302 ± 0.127) 0.255 ± 0.015* (6.477 ± 0.381) 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) 1 2 3 4 N8 1098 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) 0.065 (1.651) TYP ( +0.035 0.325 –0.015 8.255 +0.889 –0.381 ) 0.100 (2.54) BSC *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 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) 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) 0.050 (1.270) BSC SO8 1298 1 2 3 4 RELATED PARTS PART NUMBER LT1363 LT1813 DESCRIPTION High Speed Operational Amplifier High Speed Operational Amplifier COMMENTS 70MHz Gain Bandwidth, 1000V/µs Slew Rate, IS = 7.5mA Max 100MHz Gain Bandwidth, 750V/µs Slew Rate, IS = 3.6mA Max 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q 1191fa LT/CP 0801 1.5K REV A • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1991