LT1191CS8#TRPBF

LT1191 Ultrahigh Speed Operational Amplifier U FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO 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. 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 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. U APPLICATIO S ■ ■ ■ ■ 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. Video Cable Drivers Video Signal Processing Fast Integrators Pulse Amplifiers D/A Current to Voltage Conversion , LTC and LT are registered trademarks of Linear Technology Corporation. U ■ TYPICAL APPLICATIO Video MUX Cable Driver 5V 7 3 VIN1 + 2 – CMOS IN CH. SELECT 6 LT1191 SHDN Inverter Pulse Response 5 4 1k –5V 1k 1k 74HC04 75Ω CABLE 74HC04 75Ω 1k –5V 5V VIN2 3 5 + SHDN 7 6 LT1191 2 1k – 1k LT1190 • TA02 4 AV = –1, CL = 10pF SCOPE PROBE –5V LT1191 • TA01 1 LT1191 W W W AXI U U ABSOLUTE RATI GS U U W PACKAGE/ORDER I FOR ATIO (Note 1) 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 TOP VIEW BAL 1 8 BAL –IN 2 7 V+ +IN 3 6 OUT V– 4 5 SHDN N8 PACKAGE 8-LEAD PDIP LT1191CN8 LT1191CS8 S8 PACKAGE 8-LEAD PLASTIC SO S8 PART MARKING 1191 TJMAX = 150°C, θJA = 100°C/W (N8) TJMAX = 150°C, θJA = 150°C/W (S8) LT1191MJ8 LT1191CJ8 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 VS = ±5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. MIN LT1191M/C TYP MAX SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage N8 Package SO-8 Package IOS Input Offset Current 0.2 1.7 µA IB Input Bias Current ±0.5 ±2.5 µA en Input Noise Voltage in Input Noise Current RIN Input Resistance CIN Input Capacitance AV = +1 Input Voltage Range (Note 3) CMRR Common Mode Rejection Ratio VCM = – 2.5V to 3.5V 60 75 dB PSRR Power Supply Rejection Ratio VS = ±2.375V to ±8V 60 75 dB AVOL Large-Signal Voltage Gain RL = 1k, VO = ±3V RL = 100Ω, VO = ±3V VS = ±8V, RL = 100Ω, VO = ±5V 20 4 6 45 9 12 V/mV V/mV V/mV VOUT Output Voltage Swing VS = ±5V, RL = 1k VS = ±8V, RL = 1k ±3.7 ±6.7 ±4 ±7 V V SR Slew Rate AV = –2, RL = 1k (Notes 4, 9) 325 450 V/µs FPBW Full-Power Bandwidth VO = 6VP-P (Note 5) 17.2 23.9 MHz GBW Gain Bandwidth Product tr1, t f1 Rise Time, Fall Time AV = 50, VO = ±1.5V, 20% to 80% (Note 9) 100 130 tr2, t f2 Rise Time, Fall Time AV = 1, VO = ±125mV, 10% to 90% 1.25 ns tPD Propagation Delay AV = 1, VO = ±125mV, 50% to 50% 2.2 ns Overshoot AV = 1, VO = ±125mV 25 % Settling Time 3V Step, 0.1% (Note 6) 110 ns 1 fO = 10kHz fO = 10kHz Differential Mode Common Mode ts 2 5 9 UNITS mV mV 25 nV/√Hz 4 pA/√Hz 70 kΩ 5 MΩ 2 pF –2.5 3.5 90 V MHz 160 ns LT1191 ELECTRICAL CHARACTERISTICS VS = ±5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. MIN LT1191M/C TYP MAX SYMBOL PARAMETER CONDITIONS Diff AV Differential Gain RL = 150Ω, AV = 2 (Note 7) 0.15 Diff Ph Differential Phase RL = 150Ω, AV = 2 (Note 7) 0.09 IS Supply Current 32 UNITS % DegP-P 38 mA Shutdown Supply Current Pin 5 at V– 1.3 2 mA Shutdown Pin Current Pin 5 at V – 20 50 µA tON Turn On Time 100 ns tOFF Turn Off Time Pin 5 from V – to Ground, RL = 1k Pin 5 from Ground to V –, RL = 1k 400 ns ISHDN VS+ = 5V, VS– = 0V, VCM = 2.5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage N8 Package SO-8 Package IOS Input Offset Current IB Input Bias Current Input Voltage Range MIN LT1191M/C TYP MAX 2 (Note 3) 2 UNITS 7 9 mV mV 0.2 1.2 µA ±0.5 ±1.5 µA 3.5 V CMRR Common Mode Rejection Ratio VCM = 2V to 3.5V 55 70 dB AVOL Large-Signal Voltage Gain RL = 100Ω to Ground, VO = 1V to 3V 5 9 V/mV VOUT Output Voltage Swing RL = 100Ω to Ground 3.6 3.8 SR Slew Rate AV = –1, VO = 1V to 3V GBW Gain Bandwidth Product IS Supply Current VOUT High VOUT Low Shutdown Supply Current ISHDN Shutdown Pin Current 0.25 V 0.4 V 250 V/µs 80 MHz 29 36 mA Pin 5 at V – 1.2 2 mA V– 20 50 µA Pin 5 at The ● 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. LT1191M TYP MAX ● 2 8 Input VOS Drift ● 8 IOS Input Offset Current ● 0.2 2 µA IB Input Bias Current ● ±0.5 ±2.5 µA CMRR Common Mode Rejection Ratio SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage N8 Package ∆VOS /∆T MIN VCM = – 2.5V to 3.5V ● 55 UNITS mV µV/°C 70 dB PSRR Power Supply Rejection Ratio VS = ±2.375V to ±5V ● 55 70 dB AVOL Large-Signal Voltage Gain RL = 1k, VO = ±3V RL = 100, VO = ±3V ● ● 16 2 32 5 V/mV V/mV VOUT Output Voltage Swing RL = 1k ● ±3.7 ±3.9 IS Supply Current Shutdown Supply Current ISHDN Shutdown Pin Current V ● 32 38 mA Pin 5 at V – (Note 8) ● 1.5 2.5 mA V– ● 20 Pin 5 at µA 3 LT1191 ELECTRICAL CHARACTERISTICS The ● 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. PARAMETER CONDITIONS VOS Input Offset Voltage N8 Package SO-8 Package ∆VOS /∆T Input VOS Drift ● 8 IOS Input Offset Current ● 0.2 1.7 µA IB Input Bias Current ● ±0.5 ±2.5 µA CMRR Common Mode Rejection Ratio VCM = – 2.5V to 3.5V ● 58 70 dB PSRR Power Supply Rejection Ratio VS = ± 2.375V to ± 5V ● 58 70 dB AVOL Large-Signal Voltage Gain RL = 1k, VO = ± 3V RL = 100, VO = ±3V ● ● 20 3 40 9 V/mV V/mV VOUT Output Voltage Swing RL = 1k ● ±3.7 ±3.9 IS Supply Current ISHDN V– Shutdown Supply Current Pin 5 at Shutdown Pin Current Pin 5 at V – MIN LT1191C TYP SYMBOL (Note 8) 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. 5V 7 + 6 LT1191 2 – 1 4 8 –5V INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ±100mV RANGE WITH A 1kΩ TO 10kΩ POTENTIOMETER LT1191 • TA03 4 MAX 6 10 UNITS mV mV µV/°C V ● 32 38 mA ● 1.4 2.1 mA ● 20 µA 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 3 2 ● LT1191 U W TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Common Mode Voltage –0.3 VS = ±5V INPUT BIAS CURRENT (µA) INPUT BIAS CURRENT (µA) 3 2 1 25°C 0 Common Mode Voltage vs Supply Voltage –55°C 125°C –1 10 VS = ±5V –0.4 +IB –0.5 IOS –0.6 –IB –0.7 –55°C 25°C 8 COMMON MODE VOLTAGE (V) 4 Input Bias Current vs Temperature 6 +V COMMON MODE 125°C 4 2 0 –2 –55°C 25°C 125°C –4 –V COMMON MODE –6 –8 –2 –3 1 3 –2 –1 0 2 COMMON MODE VOLTAGE (V) –0.8 –50 4 –10 –25 50 0 25 75 TEMPERATURE (°C) LT1191 • TPC01 150 100 50 0 100 10 1k 10k FREQUENCY (Hz) 80 VS = ±5V TA = 25°C RS = 100k 40 20 0 100 1k 10k FREQUENCY (Hz) 4.5 OPEN-LOOP VOLTAGE GAIN (V/V) SHUTDOWN SUPPLY CURRENT (mA) 125°C 10 0 100k VSHDN = –VEE + 0.4V 4.0 3.5 3.0 VSHDN = –VEE + 0.2V 2.5 2.0 VSHDN = –VEE 1.5 100 125 LT1191 • TPC07 2 8 4 6 ±SUPPLY VOLTAGE (V) Open-Loop Voltage Gain vs Load Resistance 50k RL = 1k 40k 30k 20k 10k 0 –50 RL = 100Ω VS = ±5V VO = ±3V –25 50 0 25 75 TEMPERATURE (°C) 10 LT1191 • TPC06 50k 0 25 75 50 TEMPERATURE (°C) 25°C 20 Open-Loop Voltage Gain vs Temperature VS = ±5V –25 –55°C LT1191 • TPC05 Shutdown Supply Current vs Temperature 1.0 –50 30 0 10 LT1191 • TPC04 5.0 Supply Current vs Supply Voltage 60 100k 10 40 SUPPLY CURRENT (mA) 200 EQUIVALENT INPUT NOISE CURRENT (pA/√Hz) EQUIVALENT INPUT NOISE VOLTAGE (nV/ √Hz) 250 6 4 8 ±V SUPPLY VOLTAGE (V) LT1191 • TPC03 Equivalent Input Noise Current vs Frequency VS = ±5V TA = 25°C RS = 0Ω 2 0 125 LT1191 • TPC02 Equivalent Input Noise Voltage vs Frequency 300 100 OPEN-LOOP VOLTAGE GAIN (V/V) –4 100 125 LT1191 • TPC08 40k VS = ±5V VO = ±3V TA = 25°C 30k 20k 10k 0 10 100 LOAD RESISTANCE (Ω) 1000 LT1191 • TPC09 5 LT1191 U W TYPICAL PERFOR A CE CHARACTERISTICS Gain Bandwidth Product vs Supply Voltage Gain, Phase vs Frequency 60 40 40 20 20 GAIN 0 0 1M –20 1G 10M 100M FREQUENCY (Hz) TA = –55°C, 25°C, 125°C 75 65 55 2 4 8 6 ±V SUPPLY VOLTAGE (V) LT1191 • TPC10 UNITY GAIN FREQUENCY 90 42 40 80 38 36 25 75 0 50 TEMPERATURE (°C) 100 COMMON MODE REJECTION RATIO (dB) 46 PHASE MARGIN (DEGREES) UNITY GAIN FREQUENCY (MHz) 48 44 70 –50 –25 70 50 PHASE MARGIN 60 10k 1k 40 30 20 10 100k 34 125 80 60 10M 100M FREQUENCY (Hz) 80 –PSRR +PSRR 20 0 –20 1k 1G 5 +VOUT, 25°C, 125°C, –55°C 4 2 0 –2 –VOUT, –55°C, 25°C,125°C –4 125 LT1191 • TPC16 6 10M 100M VS = ±5V TA = –55°C 3 TA = 25°C 1 TA = 125°C –1 TA = 125°C –3 –8 TA = –55°C, 25°C –10 100 1M 100k FREQUENCY (Hz) Output Voltage Swing vs Load Resistance –6 50 0 25 75 TEMPERATURE (°C) 10k LT1191 • TPC15 RL = 1k 8 OUTPUT SWING (V) 90 VS = ±5V VRIPPLE = ±300mV TA = 25°C 40 Output Swing vs Supply Voltage 10 100M LT1191 • TPC13 LT1191 • TPC14 VS = ±5V –25 10M –40 1M 6 70 –50 100k 1M FREQUENCY (Hz) Power Supply Rejection Ratio vs Frequency 50 Output Short-Circuit Current vs Temperature OUTPUT SHORT-CIRCUIT CURRENT (mA) AV = –10 0.1 10 VS = ±5V TA = 25°C RL = 1k LT1191 • TPC12 100 AV = –1 AV = –100 Common Mode Rejection Ratio vs Frequency VS = ±5V RL = 1k 100 1 LT1191 • TPC11 Unity Gain Frequency and Phase Margin vs Temperature 110 VS = ±5V TA = 25°C 10 0.01 0 POWER SUPPLY REJECTION RATIO (dB) –20 100k 85 OUTPUT IMPEDANCE (Ω ) 60 OUTPUT VOLTAGE SWING (V) VOLTAGE GAIN (dB) PHASE 100 95 PHASE MARGIN (DEGREES) 80 100 VS = ±5V TA = 25°C RL = 1k 80 GAIN BANDWIDTH PRODUCT (MHz) 100 Output Impedance vs Frequency –5 0 2 8 4 6 ±V SUPPLY VOLTAGE (V) 10 LT1191 • TPC17 10 100 LOAD RESISTANCE (Ω) 1000 LT1191 • TPC18 LT1191 U W TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage Step vs Settling Time, AV = –1 VS = ±5V TA = 25°C RL = 1k VO = ±2V 4 –SLEW RATE OUTPUT VOLTAGE STEP (V) SLEW RATE (V/µs) 600 500 +SLEW RATE 400 300 –50 4 VS = ±5V TA = 25°C RL = 1k 2 Output Voltage Step vs Settling Time, AV = 1 1mV OUTPUT VOLTAGE STEP (V) Slew Rate vs Temperature 10mV 0 10mV 1mV –2 –4 –25 0 25 50 75 TEMPERATURE (°C) 100 125 LT1191 • TPC19 Large-Signal Transient Response LT1191 • TPC22 AV = 1, CL = 10pF SCOPE PROBE 10mV 2 1mV 0 10mV 1mV –2 VS = ±5V TA = 25°C RL = 1k –4 20 40 60 80 100 120 SETTLING TIME (ns) 140 160 50 70 90 110 130 150 170 190 210 230 SETTLING TIME (ns) LT1191 • TPC20 Small-Signal Transient Response LT1191 • TPC21 Output Overload LT1191 • TPC23 AV = 1, SMALL-SIGNAL RISE TIME, WITH FET PROBES LT1191 • TPC24 AV = – 1, VIN = 12VP-P 7 LT1191 U W U U 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 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 0V VOUT 1mV/DIV 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. LT1191 • TA06 SETTLING TIME TO 2mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF Settling Time Good Bypass Closed-Loop Voltage Gain vs Frequency CLOSED-LOOP VOLTAGE GAIN (dB) 20 VS = ±5V TA = 25°C RL = 1k 10 AV = 2 VOUT 1V/DIV AV = 1 0 –10 –20 100k 1M 10M 100M FREQUENCY (Hz) 1G LT1191 • TA05 8 0V LT1191 • TA07 SETTLING TIME TO 2mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM LT1191 U W U U APPLICATIO S I FOR ATIO Cable Terminations Using the Shutdown Feature 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. 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. 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. Output Shutdown VSHDN 0V – 5V VOUT Double Terminated Cable Driver RG 5V 3+ 7 6 LT1191 2– 4 –5V 75Ω CABLE 75Ω RFB LT1191 • TA09 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL = ∞ Cable Driver Voltage Gain vs Frequency CLOSED-LOOP VOLTAGE GAIN (dB) 10 Output Shutdown VS = ±5V TA = 25°C AV = 2 RFB = 1k RG = 330Ω 0V 5 0 VSHDN AV = 1 – 5V R FB = 1k RG = 1k VOUT RFB = 300Ω RG = 300 Ω –5 –10 100k 1M 10M FREQUENCY (Hz) 100M LT1191 • TA10 LT1191 • TA08 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 1, RL = 1kΩ 9 LT1191 W U U UO 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. Other precautions include: Murphy Circuits 3. PC board socket may reduce stability. 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. 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 Driving Capacitive Load 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. LT1191 • TA11 LT1191 • TA12 AV = –1, IN DEMO BOARD, CL = 30pF AV = –1, IN DEMO BOARD, CL = 30pF WITH 10Ω ISOLATING RESISTOR Murphy Circuits 5V 5V 3 + 6 LT1191 2 – 3 7 COAX LT1191 2 4 –5V + – 5V 3 7 6 7 LT1191 2 4 –5V + – 1X SCOPE PROBE 6 4 –5V SCOPE PROBE LT1191 • TA13 An Unterminated Cable Is a Large Capacitive Load 10 A 1X Scope Probe Is a Large Capacitive Load A Scope Probe on the Inverting Input Reduces Phase Margin LT1191 W W SI PLIFIED SCHE ATIC 7 V+ VBIAS VBIAS CM + 3 – 2 CFF +V 6 VOUT +V * 4 V– LT1191 • TA14 5 1 8 SHDN BAL BAL *SUBSTRATE DIODE, DO NOT FORWARD BIAS U PACKAGE DESCRIPTIO J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) CORNER LEADS OPTION (4 PLCS) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.300 BSC (0.762 BSC) 0.200 (5.080) MAX 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.015 – 0.060 (0.381 – 1.524) 0.008 – 0.018 (0.203 – 0.457) 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) 0° – 15° 1 0.045 – 0.065 (1.143 – 1.651) 0.014 – 0.026 (0.360 – 0.660) 0.100 (2.54) BSC 2 3 4 J8 1298 0.125 3.175 MIN NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS OBSOLETE PACKAGE 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. 11 LT1191 U PACKAGE DESCRIPTIO N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) ( 0.045 – 0.065 (1.143 – 1.651) +0.889 –0.381 0.130 ± 0.005 (3.302 ± 0.127) 0.065 (1.651) TYP 8 7 6 5 1 2 3 4 0.255 ± 0.015* (6.477 ± 0.381) +0.035 0.325 –0.015 8.255 0.400* (10.160) MAX ) 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 0.100 (2.54) BSC N8 1098 (0.457 ± 0.076) *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) 0.053 – 0.069 (1.346 – 1.752) 0°– 8° TYP 0.016 – 0.050 (0.406 – 1.270) 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 8 7 6 5 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) SO8 1298 1 2 3 4 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1363 High Speed Operational Amplifier 70MHz Gain Bandwidth, 1000V/µs Slew Rate, IS = 7.5mA Max LT1813 High Speed Operational Amplifier 100MHz Gain Bandwidth, 750V/µs Slew Rate, IS = 3.6mA Max 12 Linear Technology Corporation 1191fa LT/CP 0801 1.5K REV A • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com  LINEAR TECHNOLOGY CORPORATION 1991