LT1192

LT1192 Ultrahigh Speed Operational Amplifier FEATURES s s s s s s s s s s DESCRIPTIO Gain Bandwidth Product, AV = 5: 350MHz Slew Rate: 450V/µs Low Cost Output Current: ± 50mA Settling Time: 90ns to 0.1% Differential Gain Error: 0.1% (RL = 1k) Differential Phase Error: 0.01° (RL = 1k) High Open-Loop Gain: 100V/mV Min Single Supply 5V Operation Output Shutdown The LT1192 is a video operational amplifier optimized for operation on ± 5V and a single 5V supply. Unlike many high speed amplifiers, this amplifier features high openloop gain, over 100dB, 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 LT1192 has a high gain bandwidth of 350MHz and is compensated for a closedloop gain of 5 or greater. Because the LT1192 is a true operational amplifier, it is an ideal choice for wideband signal conditioning, active filters, and applications requiring speed, accuracy and low cost. The LT1192 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 Photo Diode Amplifier Pulse Amplifiers D/A Current to Voltage Conversion TYPICAL APPLICATIO Double Terminated Cable Driver Inverter Pulse Response 5V 3 + LT1192 7 6 4 –5V 75Ω CABLE 2 – 910Ω 75Ω 100Ω –3dB BANDWIDTH = 55MHz LT1192 • TA01 AV = – 5, CL = 10pF SCOPE PROBE U LT1192 • TA02 U U 1 LT1192 ABSOLUTE (Note 1) AXI U RATI GS PACKAGE DESCRIPTIO 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 LT1192M (OBSOLETE) ............... – 55°C to 125°C LT1192C ................................................. 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 S8 PART MARKING 1192 LT1192MJ8 LT1192CJ8 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 = 10 (Note 3) fO = 10kHz fO = 10kHz VS = ± 5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted. MIN LT1192M/C TYP MAX 0.2 0.2 ± 0.5 9 4 16 5 1.8 –2.5 70 70 100 16 20 ± 3.7 ± 6.7 325 17.2 23 85 85 180 35 60 ±4 ±7 450 23.9 350 35 2.7 3.5 50 90 50 3.5 2.5 3 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 = – 10, RL = 1k (Notes 4, 9) VO = 6VP-P (Note 5) AV = 50, VO = ± 1.5V, 20% to 80% (Note 9) AV = 5, VO = ± 125mV, 10% to 90% AV = 5, VO = ± 125mV, 50% to 50% AV = 5, 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 ORDER PART NUMBER LT1192CN8 LT1192CS8 U WW W LT1192 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 LT1192M/C TYP MAX 0.23 0.15 32 V– 1.3 20 100 400 38 2 50 UNITS % DegP-P mA mA µA ns ns CONDITIONS RL = 150Ω, AV = 10 (Note 7) RL = 150Ω, AV = 10 (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 = – 5, VO = 1V to 3V VOUT High VOUT Low 2 60 30 3.6 80 50 3.8 0.25 250 350 29 1.2 20 36 2 50 0.4 V/µs MHz mA mA µA CONDITIONS All Packages MIN LT1192M/C TYP MAX 0.4 0.2 ± 0.5 4 1.2 ± 1.5 3.5 UNITS mV µA µA V dB V/mV V 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 = 100Ω, VO = ± 3V RL = 1k CONDITIONS N8 Package q q q q q q q q q q q q MIN LT1192M TYP 0.4 2 0.2 ± 0.5 MAX 3.5 2 ± 2.5 UNITS mV µV/°C µA µA dB dB V/mV V/mV V 65 70 55 5 ± 3.7 85 90 90 14 ± 3.9 32 1.5 20 38 2.5 mA mA µA 3 LT1192 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 0.4 2 0.2 ± 0.5 MAX 3 4 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 = 100Ω, VO = ± 3V RL = 1k Pin 5 at V – (Note 8) Pin 5 at V– q q q q q q q q 68 70 90 10 ± 3.7 85 90 140 30 ± 3.9 32 1.4 20 38 2.1 mA mA µA 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 ± 0.3V 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 = – 5, RL = 1k. Note 7: NTSC (3.58MHz). For RL = 1k, Diff AV = 0.1%, Diff Ph = 0.01°. Diff AV and Diff Ph can be reduced for AV < 10. 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 6 4 8 –5V LT1192 2 INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ± 20mV RANGE WITH A 1k Ω TO 10kΩ POTENTIOMETER LT1192 • TA03 4 LT1192 TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Common Mode Voltage 4 3 VS = ± 5V –0.3 INPUT BIAS CURRENT (µA) INPUT BIAS CURRENT (µA) –0.4 +IB –0.5 IOS –0.6 –IB COMMON MODE VOLTAGE (V) 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 VOLTAGE (nV/√Hz) 250 200 150 100 50 0 VS = ± 5V TA = 25°C R S = 0Ω EQUIVALENT INPUT NOISE CURRENT (pA/√Hz) 300 SUPPLY CURRENT (mA) 10 100 1k 10k FREQUENCY (Hz) Shutdown Supply Current vs Temperature 5.0 VS = ± 5V VSHDN = –VEE + 0.4V 4.0 3.5 3.0 2.5 2.0 VSHDN = –VEE 1.5 1.0 –50 –25 0 25 75 50 TEMPERATURE (°C) 100 125 VSHDN = –VEE + 0.2V SHUTDOWN SUPPLY CURRENT (mA) OPEN-LOOP VOLTAGE GAIN (V/V) RL = 1k OPEN-LOOP VOLTAGE GAIN (V/V) 4.5 UW LT1192 • TPC01 LT1192 • TPC04 LT1192 • TPC07 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 –0.7 –V COMMON MODE –55°C 25°C 125°C 0 2 6 4 8 ± V SUPPLY VOLTAGE (V) 10 LT1192 • TPC02 LT1192 • TPC03 Equivalent Input Noise Current vs Frequency 80 VS = ± 5V TA = 25°C RS = 100k 40 Supply Current vs Supply Voltage 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 LT1192 • TPC05 LT1192 • TPC06 Open-Loop Voltage Gain vs Temperature 200k VS = ± 5V VO = ± 3V 200k Open-Loop Voltage Gain vs Load Resistance VS = ± 5V VO = ± 3V TA = 25°C 150k 150k 100k 100k 50k RL = 100Ω 50k 0 –50 –25 0 25 75 0 50 TEMPERATURE (°C) 100 125 10 100 LOAD RESISTANCE (Ω) 1000 LT1192 • TPC09 LT1192 • TPC08 5 LT1192 TYPICAL PERFOR A CE CHARACTERISTICS Gain, Phase vs Frequency 100 80 GAIN BANDWIDTH PRODUCT (MHz) VOLTAGE GAIN (dB) 60 40 20 0 –20 100k GAIN 60 40 20 0 –20 1M 10M 100M FREQUENCY (Hz) 1G 340 320 300 280 260 240 0 2 4 8 6 ± V SUPPLY VOLTAGE (V) 10 OUTPUT IMPEDANCE (Ω ) PHASE Gain and Phase Margin vs Temperature 70 68 COMMON MODE REJECTION RATIO (dB) 48 46 GAIN = 5 FREQUENCY (MHz) 66 64 62 60 58 56 54 52 50 –50 –25 0 50 25 75 TEMPERATURE (°C) 100 PHASE MARGIN GAIN = 5 FREQUENCY 60 50 40 30 20 10 1M POWER SUPPLY REJECTION RATIO (dB) 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 LT1192 • TPC10 Gain Bandwidth Product vs Supply Voltage VS = ± 5V TA = 25°C RL = 1 k 80 100 380 360 TA = – 55°C, 25°C, 125°C 100 Output Impedance vs Frequency VS = ± 5V TA = 25°C 10 AV = –100 1 PHASE MARGIN (DEGREES) 0.1 AV = – 10 0.01 0.001 1k 10k 100k 1M FREQUENCY (Hz) 10M 100M LT1192 • TPC11 LT1192 • TPC13 Common Mode Rejection Ratio vs Frequency VS = ±5V RL = 1 k 50 70 VS = ± 5V TA = 25°C RL = 1k Power Supply Rejection Ratio vs Frequency 100 VS = ± 5V VRIPPLE = ± 300mV TA = 25°C 80 PHASE MARGIN (DEGREES) 44 42 40 38 36 34 32 30 125 60 +PSRR 40 –PSRR 20 0 10M 100M FREQUENCY (Hz) 1G LT1192 • TPC14 1k 10k 100k 1M FREQUENCY (Hz) 10M 100M LT1192 • TPC12 LT1192 • 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 LT1192 • TPC18 LT1192 • TPC16 LT1192 • TPC17 LT1192 TYPICAL PERFOR A CE CHARACTERISTICS Slew Rate vs Temperature 600 VS = ±5V TA = 25°C RL = 1 k VO = ±2V 4 –SLEW RATE OUTPUT VOLTAGE STEP (V) 2 10mV 1mV 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 = 5, CL = 10pF SCOPE PROBE APPLICATIO S I FOR ATIO Power Supply Bypassing The LT1192 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 = 1k. 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 U W UW 100 LT1192 • TPC22 Output Voltage Step vs Settling Time, AV = – 5 VS = ±5V TA = 25°C RL = 1k 4 Output Voltage Step vs Settling Time, AV = 5 2 10mV 1mV 0 0 –2 10mV 1mV –2 10mV 1mV –4 125 20 40 60 80 100 120 SETTLING TIME (ns) 140 160 –4 50 100 150 SETTLING TIME (ns) VS = ± 5V TA = 25°C RL = 1k 200 LT1192 • TPC21 LT1192 • TPC19 LT1192 • TPC20 Small-Signal Transient Response Output Overload LT1192 • TPC23 LT1192 • TPC24 AV = 5, SMALL-SIGNAL RISE TIME, WITH FET PROBES AV = 10, VIN = 1.2VP-P UU No Supply Bypass Capacitors LT1192 • TA04 AV = – 5, IN DEMO BOARD, RL = 1k 7 LT1192 APPLICATIO S I FOR ATIO amplified to 1mV/DIV the settling time to 1mV is 4.132µs for the 0.1µF bypass; the time drops to 140ns with multiple bypass capacitors. Settling Time Poor Bypass CLOSED LOOP VOLTAGE GAIN (dB) VOUT 1V/DIV 0V LT1192 • TA05 SETTLING TIME TO 1mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF Settling Time Good Bypass VOUT 1V/DIV 0V LT1192 • TA06 SETTLING TIME TO 1mV, AV = –1 SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM Cable Terminations The LT1192 operational amplifier has been optimized as a low cost video cable driver. The ± 50mA guaranteed output current enables the LT1192 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 8 U Double Terminated Cable Driver 5V 3+ 7 6 LT1192 2– 4 –5V 75Ω RFB CABLE 75 Ω RG W UU Cable Driver Voltage Gain vs Frequency 24 20 16 12 8 4 0 100k AV = +5 RFB = 910Ω RG = 100Ω TA = 25°C AV = +10 RFB = 910 Ω R G = 47Ω VOUT 0V 1mV/DIV 1M 10M 100M FREQUENCY (Hz) LT1192 • TA07 0V VOUT 1mV/DIV 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. For a cable driver with a gain of 5 (op amp gain of 10) the – 3dB bandwidth is 56MHz with only 0.25dB of peaking. Using the Shutdown Feature The LT1192 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. When the output is loaded with as little as 1kΩ from the amplifier’s feedback resistors, the amplifier shuts off in 400ns. This shutoff can be under the control of HC CMOS operating between 0V and – 5V. LT1192 APPLICATIO S I FOR ATIO Output Shutdown 0V VSHDN – 5V VOUT LT1192 • TA08 1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN, AV = 10, RL = 1k CLOSED-LOOP VOLTAGE GAIN (dB) 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. Operating with Low Closed-Loop Gains When using decompensated amplifiers it should be realized that peaking in the frequency domain, and overshoot and ringing in the time domain occur as closed-loop gain is lowered. The LT1192 is stable to a closed-loop gain of 5, however, peaking and ringing can be minimized by increasing the closed-loop gain. For instance, the LT1192 peaks 5dB when used in a gain of 5, but peaks by less than 0.5dB for a closed-loop gain of 10. Likewise, the overshoot drops from 50% to 4% for gains of 10. Murphy Circuits There are several precautions the user should take when using the LT1192 in order to realize its full capability. Although the LT1192 can drive a 50pF load, isolating the capacitance with 20Ω can be helpful. Precautions primarily have to do with driving large capacitive loads. U Small-Signal Transient Response LT1192 • TA09 W UU AV = 10, SMALL-SIGNAL RISE TIME, WITH FET PROBES Closed-Loop Voltage Gain vs Frequency 24 22 20 18 16 14 12 10 100k AV = 5 AV = 10 1M 10M 100M FREQUENCY (Hz) 1G LT1192 • TA10 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. 9 LT1192 APPLICATIO S I FOR ATIO Driving Capacitive Load LT1192 • TA11 AV = – 5, IN DEMO BOARD, CL = 50pF 5V 3 + LT1192 7 6 4 –5V COAX 2 2 – An Unterminated Cable Is a Large Capacitive Load 5V 3 + LT1192 7 6 4 –5V 2 – SCOPE PROBE LT1192 • TA13 A Scope Probe on the Inverting Input Reduces Phase Margin 10 U Driving Capacitive Load LT1192 • TA12 W UU AV = – 5, IN DEMO BOARD, CL = 50pF WITH 20Ω ISOLATING RESISTOR Murphy Circuits 5V 3 + LT1192 7 6 4 –5V 1X SCOPE PROBE – A 1X Scope Probe Is a Large Capacitive Load + LT1192 – LT1192 Is Stable for Gains ≥ 5V/V LT1192 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 LT1192 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 LT1221 LT1222 LT1225 DESCRIPTION High Speed Operational Amplifier High Speed Operational Amplifier High Speed Operational Amplifier COMMENTS 150MHz Gain Bandwidth, 200V/µs Slew Rate, en = 6nV/√Hz 500MHz Gain Bandwidth, 200V/µs Slew Rate, en = 3nV/√Hz 150MHz Gain Bandwidth, 400V/µs Slew Rate, IS = 7mA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q 1192fa LT/CP 0801 1.5K REV A • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1991