LT1194 Video Difference Amplifier U FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO Differential or Single-Ended Gain Block: ±10 (20dB) – 3dB Bandwidth: 35MHz Slew Rate: 500V/µs Low Cost Output Current: ±50mA Settling Time: 200ns to 0.1% CMRR at 10MHz: 45dB Differential Gain Error: 0.2% Differential Phase Error: 0.08° Input Amplitude Limiting Single 5V Operation Drives Cables Directly ■ ■ ■ ■ The LT1194’s high slew rate 500V/µs, wide bandwidth 35MHz, and ±50mA output current make it ideal for driving cables directly. This versatile amplifier is easy to use for video or applications requiring speed, accuracy and low cost. The LT1194 is available in 8-pin PDIP and SO packages. U APPLICATIO S ■ The LT®1194 is a video difference amplifier optimized for operation on ±5V and a single 5V supply. The amplifier has a fixed gain of 20dB and features adjustable input limiting to control tough overdrive applications. It has uncommitted high input impedance (+) and (–) inputs, and can be used in differential or single-ended configurations. , LTC and LT are registered trademarks of Linear Technology Corporation. Line Receivers Video Signal Processing Gain Limiting Oscillators Tape and Disc Drive Systems U TYPICAL APPLICATIO Wideband Differential Amplifier with Limiting Sine Wave Reduced by Limiting 250Ω 7pF TO 45pF 4 1 11 5V 5V 1µF 3 8 NE592 INPUT 14 2 7 –5V 5 1µF 1k 1k + – + 1 7 6 LT1194 OUTPUT VOUT 1V/DIV 4 8 –5V VCONTROL AV = 1000, –3dB BW = 35MHz LT1194 • TA01 LT1193 • TA02 200kHz SINE WAVE WITH VCONTROL = –5V, –4V, –3V, –2V 1 LT1194 W W W AXI U U ABSOLUTE RATI GS (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 LT1194M (OBSOLETE) ............... – 55°C to 125°C LT1194C ................................................. 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/VC 1 8 BAL/VC –IN 2 7 V+ +IN 3 6 OUT V– 4 5 REF LT1194CN8 LT1194CS8 S8 PART MARKING N8 PACKAGE 8-LEAD PDIP S8 PACKAGE 8-LEAD PLASTIC SO 1194 TJMAX = 150°C, θJA = 100°C/W (N8) TJMAX = 150°C, θJA = 150°C/W (S8) LT1194MJ8 LT1194CJ8 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, VREF = 0V, Null Pins 1 and 8 open circuit, TA = 25°C, CL ≤ 10pF, unless otherwise noted. MIN LT1194M/C TYP MAX 1 6 SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage All Packages IOS Input Offset Current 0.2 3 µA IB Input Bias Current ±0.5 ±3.5 µA en Input Noise Voltage fO = 10kHz in Input Noise Current RIN Input Resistance CIN Input Capacitance Common Mode Rejection Ratio mV 15 nV/√Hz fO = 10kHz 4 pA/√Hz Either Input 30 kΩ Either Input 2 pF Input Voltage Range CMRR UNITS – 2.5 VCM = –2.5V to 3.5V 65 3.5 V 80 dB PSRR Power Supply Rejection Ratio VS = ±2.375V to ±8V 65 80 dB VOMAX Maximum Output Signal VS = ±8V (Note 3) ±3 ±4.3 V VLIM Output Voltage Limit Vi = ±0.5V, VC = 2V (Note 4) VOUT Output Voltage Swing VS = ±8V, VREF = 4V VS = ±8V, VREF = –4V ±20 Gain Error VO = ±3V mV RL = 1k 6.6 6.9 V RL = 100Ω 6.3 6.7 V RL = 1k – 6.7 – 7.4 V RL = 100Ω – 6.4 – 6.7 V ±3 ±4 V VS = ±5V, VREF = 0V, RL = 1k GE ±120 RL = 1k 0.5 3 % RL = 100Ω 0.5 3 % SR Slew Rate VO = ± 1V, RL = 1k (Notes 5, 9) 350 500 FPBW Full-Power Bandwidth VO = 6VP-P (Note 6) 18.5 26.5 MHz BW Small-Signal Bandwidth 35 MHz tr, tf Rise Time, Fall Time RL = 1k, VO = ±500mV, 20% to 80% (Note 9) tPD Propagation Delay RL = 1k, VO = ±125mV, 50% to 50% 2 4 6 6.5 V/µs 8 ns ns LT1194 ELECTRICAL CHARACTERISTICS VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, TA = 25°C, CL≤ 10pF, unless otherwise noted. SYMBOL CONDITIONS Overshoot VO = ±125mV Settling Time 3V Step, 0.1% (Note 7) Diff AV Differential Gain RL = 150Ω (Note 8) 0.2 % Diff Ph Differential Phase RL = 150Ω (Note 8) 0.08 DegP-P IS Supply Current ts MIN LT1194M/C TYP MAX PARAMETER UNITS 0 % 200 ns 35 43 mA VS + = 5V, VS – = 0V, VREF = 2.5V, Null Pins 1 and 8 open circuit, TA = 25°C, CL ≤ 10pF, unless otherwise noted. SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage All Packages IOS Input Offset Current IB Input Bias Current MIN LT1194M/C TYP MAX 8 mV 0.2 3 µA ±3 µA 3.5 V ±0.5 Input Voltage Range 2 CMRR Common Mode Rejection Ratio VCM = 2V to 3.5V 55 VLIM Output Voltage Limit VI = ± 0.5V, VC = 2V (Note 4) VOUT Output Voltage Swing RL = 100Ω to Ground 70 ±20 VOUT High 3.6 VOUT Low dB ±120 3.8 0.25 VO = 1V to 3V UNITS 2 mV V 0.4 V SR Slew Rate 250 V/µs BW Small-Signal Bandwidth 32 MHz IS Supply Current 32 40 LT1194M TYP MAX ● 1 9 mA The ● denotes specifications which apply over the full operating temperature range of – 55°C ≤ TA ≤ 125°C. VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN VOS Input Offset Voltage N8 Package UNITS ∆VOS/∆T Input VOS Drift ● 6 IOS Input Offset Current ● 0.8 5 µA IB Input Bias Current ● ±1 ±5.5 µA Input Voltage Range ● – 2.5 3.5 V mV mV/°C CMRR Common Mode Rejection Ratio VCM = – 2.5V to 3.5V ● 58 80 dB PSRR Power Supply Rejection Ratio VS = ±2.375V to ±5V ● 60 80 dB VLIM Output Voltage Limit VI = ±0.5V, VC = 2V (Note 4) ● VOUT Output Voltage Swing VS = ±8V, VREF = 4V RL = 1k ● 6 6.6 V RL = 100Ω ● 5.9 6.5 V VS = ±8V, VREF = –4V RL = 1k ● – 6.1 – 6.7 V RL = 100Ω ● –6 – 6.5 GE Gain Error IS Supply Current VO = ±3V, RL = 1k ±20 ±150 mV V ● 1 5 % ● 35 43 mA 3 LT1194 ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, unless otherwise noted. SYMBOL LT1194C TYP MAX ● 1 7 ● 6 Input Offset Current ● 0.2 Input Bias Current ● Input Voltage Range ● – 2.5 VCM = – 2.5V to 3.5V ● 60 60 PARAMETER CONDITIONS VOS Input Offset Voltage All Packages ∆VOS /∆T Input VOS Drift IOS IB CMRR Common Mode Rejection Ratio MIN Power Supply Rejection Ratio VS = ± 2.375V to ± 5V ● VLIM Output Voltage Limit VI = ±0.5V, VC = 2V (Note 4) ● VOUT Output Voltage Swing VS = ± 8V, VREF = 4V RL = 1k ● RL = 100Ω ● VS = ± 8V, VREF = – 4V RL = 1k ● RL = 100Ω ● – 6.2 VO = ±3V, RL = 1k GE Gain Error IS Supply Current Optional Offset Nulling Circuit Input Limiting Connection 5V 5V 3 7 + LT1194 2 – 1 4 8 –5V – 1 4 V dB ±130 mV 6.9 V 6.1 6.7 V – 6.4 – 7.2 V – 6.6 V ● 1 4 % ● 35 43 mA Input Limiting with Offset Nulling 4 8 6 LT1194 2 – –5V 1 (NOTE 4) 7 + 6 VC INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ± 250mV RANGE WITH A 1kΩ TO 10kΩ POTENTIOMETER µA 80 5V LT1194 2 ±4 3.5 dB ±20 3 7 + 6 µA Note 5: Slew rate is measured between ±1V on the output, with a ±0.3V input step. Note 6: Full-power bandwidth is calculated from the slew rate measurement: FPBW = SR/2πVP. Note 7: Settling time measurement techniques are shown in “Take the Guesswork Out of Settling Time Measurements,” EDN, September 19, 1985. Note 8: NTSC (3.58MHz). 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 part (S suffix). Note 1: Absolute Maximum Ratings are those values beyond which the life of a 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: There are two limitations on signal swing. Output swing is limited by clipping or saturation in the output stage. Input swing is controlled by an adjustable input limiting function. On VS = ±5V, the overload characteristic is output limiting, but on ±8V the overload characteristic is input limiting. VOMAX is measured with the null pins open circuit. Note 4: Output amplitude is reduced by the input limiting function. The input limiting function occurs when the null pins, 1 and 8, are tied together and raised to a potential 0.3V or more above the negative supply. 3 3.5 80 6.2 mV µV/°C ±0.5 PSRR UNITS 4 8 –5V VC LT1194 • TA03 (NOTE 4) LT1194 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 –0.8 –50 –2 –4 –3 1 3 –2 –1 0 2 COMMON MODE VOLTAGE (V) 4 –10 –25 50 0 25 75 TEMPERATURE (°C) LT1194 • TPC01 50 0 1k 10k FREQUENCY (Hz) 80 VS = ±5V TA = 25°C RS = 100k 20 0 10 100 1k 10k FREQUENCY (Hz) 1.0 –60 12 –80 –120 100M VS = ±5V 35 0.6 RL = 1k 0.4 RL = 100Ω 0 –50 10 – 3dB Bandwidth vs Supply Voltage 0.2 LT1194 • TPC08 4 6 8 ±SUPPLY VOLTAGE (V) 36 34 33 TA = –55°C, 25°C, 125°C 32 31 –100 1M 10M FREQUENCY (Hz) 2 LT1194 • TPC06 –3dB BANDWIDTH (MHz) 14 GAIN ERROR (%) VOLTAGE GAIN (dB) –40 PHASE PHASE SHIFT (DEGREES) –20 8 100k 0 0 18 VS = ±5V TA = 25°C RL = 1k 0 100k 0.8 10 20 Gain Error vs Temperature GAIN 25°C 125°C LT1194 • TPC05 Gain, Phase vs Frequency 16 –55°C 30 10 LT1194 • TPC04 20 40 40 20 10 Supply Current vs Supply Voltage 60 100k 22 6 4 8 ±V SUPPLY VOLTAGE (V) 50 SUPPLY CURRENT (mA) EQUIVALENT INPUT NOISE CURRENT (pA/√Hz) EQUIVALENT INPUT NOISE VOLTAGE (nV/√Hz) 100 100 2 LT1194 • TPC03 Equivalent Input Noise Current vs Frequency VS = ±5V TA = 25°C RS = 0Ω 10 0 125 LT1194 • TPC02 Equivalent Input Noise Voltage vs Frequency 150 100 30 – 25 50 0 25 75 TEMPERATURE (°C) 100 125 LT1194 • TPC07 0 2 4 6 SUPPLY VOLTAGE (V) 8 10 LT1194 • TPC09 5 LT1194 U W TYPICAL PERFOR A CE CHARACTERISTICS 10 1 0.1 100k 1M FREQUENCY (Hz) 10M 50 40 30 20 10 100k 100M 1M 10M FREQUENCY (Hz) 6 OUTPUT VOLTAGE LIMITING (V) OUTPUT SHORT-CIRCUIT CURRENT (mA) 80 50 0 25 75 TEMPERATURE (°C) 100 TA = 25°C TA = – 50°C 2 +OUTPUT SWING BAL/VC PINS 1, 8 FLOATING 0 –OUTPUT SWING –2 TA = 125°C 2 –50 –70 VC = 1V –90 100k 1M VS = ±5V TA = 25°C RL = 1k 10M 100M FREQUENCY (Hz) 1G LT1194 • TPC16 6 –2 –LIMITING –6 4 6 8 ±SUPPLY VOLTAGE (V) –6 10 –1 –4 –3 –2 –5 VOLTAGE ON CONTROL PINS (V) Slew Rate vs Temperature 900 VS = ±5V TA = –55°C 3 TA = 125°C –1 TA = 125°C –3 T = 25°C A VS = ±5V RL = 1k VO = ±2V 700 600 +SLEW RATE 500 TA = –55°C 400 –5 10 –SLEW RATE 800 TA = 25°C 1 0 LT1194 • TPC15 SLEW RATE (V/µs) VC = –1V 0 Output Voltage Swing vs Load Resistance OUTPUT VOLTAGE SWING (V) VOLTAGE GAIN (dB) –30 +LIMITING 2 LT1194 • TPC14 VC = –5V 100M –4 TA = 25°C 0 5 –10 10M VS = –5V TA = 25°C RL = 1k 4 TA = –50°C –4 125 VC = –3V 100k 1M FREQUENCY (Hz) 6 4 Voltage Gain vs Frequency with Control Voltage 10 10k Output Voltage vs Voltage On Control Pins LT1194 • TPC13 30 0 LT1194 • TPC12 TA = 125°C –6 –25 20 Output Voltage Limiting vs Supply Voltage VS = ± 5V 70 –50 40 LT1194 • TPC11 Output Short-Circuit Current vs Temperature 90 VS = ±5V TA = 25°C VRIPPLE = ±300mV –20 1k 100M LT1194 • TPC10 100 60 OUTPUT VOLTAGE (V) 10k 1k VS = ±5V TA = 25°C RL = 1k POWER SUPPLY REJECTION RATIO (dB) 60 VS = ±5V TA = 25°C COMMON MODE REJECTION RATIO (dB) OUTPUT IMPEDANCE (Ω) 100 Power Supply Rejection Ratio vs Frequency (Output Referred) Common Mode Rejection Ratio vs Frequency (Output Referred) Output Impedance vs Frequency 100 LOAD RESISTANCE (Ω) 1000 LT1194 • TPC17 300 –50 –25 0 25 50 75 TEMPERATURE (°C) 100 125 LT1194 • TPC18 LT1194 U W TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage Step vs Settling Time OUTPUT VOLTAGE STEP (V) 4 Small-Signal Transient Response Large-Signal Transient Response VS = ±5V TA = 25°C RL = 1k 2 10mV 0 10mV –2 LT1194 • TPC20 RISE TIME = 10.8ns, PROPAGATION DELAY = 6ns LT1194 • TPC21 RL = 150Ω, +SR = 430V/µs, –SR = 500V/µs –4 40 60 80 100 120 140 SETTLING TIME (ns) 160 180 LT1194 • TPC19 U W U U APPLICATIO S I FOR ATIO The LT1194 is a video difference amplifier with a fixed gain of 10 (20dB). The amplifier has two uncommitted high input impedance (+) and (–) inputs that can be used either differentially or single-ended. The LT1194 includes a limiting feature that allows the amplifier to reduce its output as a function of DC voltage on the BAL/VC pins. The limiting feature uses input differential-pair limiting to prevent overload in subsequent stages. This technique allows extremely fast limiting action. Input Limiting OUTPUT INPUT Power Supply Bypassing The LT1194 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. LT1194 • TA04 20dB INPUT OVERDRIVE, VC = –4.2V 7 LT1194 U W U U APPLICATIO S I FOR ATIO A scope photo of the amplifier output with no supply bypassing is used to demonstrate this bypassing tolerance, RL = 1k. In many 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 to 10mV/DIV the settling time to 10mV is 200ns. The time drops to 162ns with multiple bypass capacitors, and does not exhibit the characteristic power supply ringing. No Supply Bypass Settling Time Good Bypass LT1194 • TA07 SETTLING TIME TO 10mV, SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM Cable Terminations The LT1194 video difference amplifier has been optimized as a low cost cable driver. The ±50mA guaranteed output current enables the LT1194 to easily deliver 7.5VP-P into 100Ω, while operating on ±5V supplies, or 2.6VP-P on a single 5V supply. LT1194 • TA05 IN DEMO BOARD, RL = 1k Settling Time Poor Bypass 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. For a cable driver with a gain of 5 (LT1194 gain of 10), the –3dB bandwidth is over 30MHz with no peaking. A Voltage Controlled Current Source LT1194 • TA06 SETTLING TIME TO 10mV, SUPPLY BYPASS CAPACITORS = 0.1µF 8 The LT1194 can be used to make a fast, precise, voltage controlled current source. The LT1194 high speed differential amplifier senses the current delivered to the load. The input signal VIN, applied to the (+) input of the LT1191, LT1194 U W U U APPLICATIO S I FOR ATIO Voltage Controlled Current Source Double Terminated Cable Driver 5V 3 5 2 5V 7 + 6 LT1194 – 1 3 ±VIN 75Ω CABLE 7 + LT1191 2 75Ω 4 8 –5V – 6 CC 4 –5V 5V 7 VC 2k 6 5 LT1194 Voltage Gain vs Frequency 4 16 3 + – R 5.1Ω 2 IO = ±20mA –5V TA = 25°C RL 100Ω VOLTAGE GAIN (dB) 14 LT1194 • TA09 12 10 Output Current Response 8 6 4 CC = 1pF 2 100k 1M 10M FREQUENCY (Hz) 100M LT1194 • TA08 will appear at the (–) input if the feedback loop is properly closed. In steady state the input signal appears at the output of the LT1194, and 1/10 of this signal is applied across the sense resistor. Thus the output current is simply: CC = 3pF CC = 20pF LT1194 • TA10 ±20mA CURRENT SOURCE WITH DIFFERENT COMPENSATION CAPACITORS IO = VIN R • 10 The compensation capacitor CC forces the LT1191 to be the dominate pole for the loop, while the LT1194 is fast enough to be transparent in the feedback path. The ratio of the load resistor to the sense resistor should be approximately 10:1 or greater for easy compensation. For the example shown the load resistor is 100Ω, the sense resistor is 5.1Ω, and various loop compensation capacitors cause the output to exhibit an underdamped, critically and overdamped response. Differential Video Loop Thru Amplifier for Power-Down Applications VIN 15k CABLE 5V 1.5k 3 15k 2 1.5k 5 7 + LT1194 – 6 OUTPUT 4 –5V 1% RESISTOR WORST-CASE CMRR = 22dB TYPICALLY = 38dB LT1194 • TA11 9 LT1194 U W U U APPLICATIO S I FOR ATIO Murphy Circuits Other precautions include: There are several precautions the user should take when using the LT1194 in order to realize its full capability. Although the LT1194 can drive a 50pF capacitive load, isolating the capacitance with 10Ω can be helpful. Precautions primarily have to do with driving large capacitive loads. 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. Driving Capacitive Load Driving Capacitive Load LT1194 • TA12 LT1194 • TA13 LT1194 IN DEMO BOARD, CL = 50pF LT1194 IN DEMO BOARD, CL = 50pF WITH 10Ω ISOLATING RESISTOR 5V 5V 3 3 + 5 2 7 LT1194 6 COAX – 4 8 1 –5V 7 + 5 2 LT1194 – 1 4 8 –5V 6 1X SCOPE PROBE LT1194 • TA14 An Unterminated Cable is a Large Capacitive Load 10 A 1X Scope Probe is a Large Capacitive Load LT1194 W W SI PLIFIED SCHE ATIC 7 V+ VBIAS VBIAS CM + 3 – 2 CFF +V 6 VOUT +V * 4 V– 500Ω 1 8 5 BAL BAL REF 4.5k LT1194 • TA15 * 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 LT1194 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 LT1193 AV = 2 Video Difference Amp 80MHz BW, 500V/µs Slew Rate 12 Linear Technology Corporation 1194fa 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