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LT1195 Low Power, High Speed Operational Amplifier
FEATURES

DESCRIPTIO
Gain-Bandwidth Product: 50MHz Unity-Gain Stable Slew Rate: 165V/s Output Current: 20mA Low Supply Current: 12mA High Open-Loop Gain: 7.5V/mV Low Cost Single Supply 5V Operation Industry Standard Pinout Output Shutdown
The LT(R)1195 is a video operational amplifier optimized for operation on single 5V and 5V supplies. Unlike many high speed amplifiers, the LT1195 features high openloop gain, over 75dB, and the ability to drive heavy loads to a full power bandwidth of 8.5 MHz at 6VP-P. The LT1195 has a unity-gain stable bandwidth of 50MHz, a 60 phase margin and consumes only 12mA of supply current, making it extremely easy to use. Because the LT1195 is a true operational amplifier, it is an ideal choice for wideband signal conditioning, fast integrators, peak detectors, active filters, and applications requiring speed, accuracy, and low cost. The LT1195 is a low power version of the popular LT1190, and is available in 8-pin miniDIPs 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

Video Cable Drivers Video Signal Processing Fast Peak Detectors Fast Integrators Video Cable Drivers Pulse Amplifiers
TYPICAL APPLICATIO
Fast Pulse Detector
RI 1k VIN RS 50 CI 60pF 5V 3
Pulse Detector Response
+ -
7 LT1195 6
D1 1N5712
OUTPUT
2
4 -5V
RL 10k -5V
CL 1000pF
RB 10k -5V
D2 1N5712
1195 TA01
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INPUT
1195TAO2
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LT1195
ABSOLUTE
(Note 1)
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RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW BAL 1 -IN 2 +IN 3 V- 4 8 7 6 5 BAL V+ OUT S/D
Total Supply Voltage (V+ to V - ) ............................... 18V Differential Input Voltage ......................................... 6V Input Voltage ........................................................... VS Output Short-Circuit Duration (Note 2) ......... Continuous Operating Temperature Range LT1195M (OBSOLETE) ................... -55C to 125C LT1195C ................................................ 0C to 70C Junction Temperature (Note 3) Plastic Package (CN8, CS8) ............................ 150C Ceramic Package (CJ8, MJ8) (OBSOLETE) ..... 175C Storage Temperature Range ................. -65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C
ORDER PART NUMBER LT1195CN8 LT1195CS8 S8 PART MARKING 1195 ORDER PART NUMBER LT1195MJ8 LT1195CJ8
S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP TJMAX = 150C, JA = 100C/ W (N8) TJMAX = 150C, JA = 150C/ W (S8)
J8 PACKAGE 8-LEAD CERDIP
TJMAX = 150C, JA = 100C/ W (J8)
OBSOLETE PACKAGE
Consider the N8 or S8 Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
+5V ELECTRICAL CHARACTERISTICS - V = 5V, C 10pF, Pin 5 open circuit, unless otherwise noted.
S L
TA = 25C
LT1195M/C TYP 3.0 3.0 0.2 0.5 70 2 230 20 2.2 85 85 7.5 1.5 11.0 4.0 7.0 165 8.75 50 170 3.4 2.5 22 220 1.25 0.86
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 Differential Mode Common Mode Input Capacitance Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain
CONDITIONS J8, N8 Package S8 Package
MIN
MAX 8.0 10.0 1.0 2.0
fO = 10kHz fO = 10kHz
VOUT SR FPBW GBW tr1, tf1 tr2, tf2 tPD tS Diff AV Diff Ph
Output Voltage Swing Slew Rate Full Power Bandwidth Gain-Bandwidth Product Rise Time, Fall Time Rise Time, Fall Time Propagation Delay Overshoot Settling Time Differential Gain Differential Phase
AV = 1 (Note 4) VCM = -2.5 to 3.5V VS = 2.375V to 8V RL = 1k, VOUT = 3V RL = 150, VOUT = 3V VS = 8V, RL = 1k, VOUT = 5V VS = 5V, RL = 1k VS = 8V, RL = 1k AV = -1, RL = 1k (Note 5, 10) VOUT = 6VP-P (Note 6) AV = 50, VOUT = 1.5V, 20% to 80% (Note 10) AV = 1, VOUT = 125mV, 10% to 90% AV = 1, VOUT = 125mV, 50% to 50% AV = 1, VOUT = 125mV 3V Step, 0.1% (Note 7) RL = 150, AV = 2 (Note 8) RL = 150, AV = 2 (Note 8)
-2.5 60 60 2.0 0.5 3.8 6.7 110
3.5
125
285
UNITS mV mV A A nVHz pAHz k M pF V dB dB V/mV V/mV V/mV V V V/s MHz MHz ns ns ns % ns % DEGP-P
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LT1195 +5V ELECTRICAL CHARACTERISTICS -
VS = 5V, CL 10pF, Pin 5 open circuit, unless otherwise noted.
SYMBOL IS IS/D tON tOFF PARAMETER Supply Current Shutdown Supply Current Shutdown Pin Current Turn-On Time Turn-Off Time CONDITIONS Pin 5 at V - Pin 5 at V - Pin 5 from V - to Ground, RL = 1k Pin 5 from Ground to V -, RL = 1k MIN LT1195M/C TYP MAX 12 16 0.8 1.5 5 25 160 700 UNITS mA mA A ns ns
TA = 25C
5V ELECTRICAL CHARACTERISTICS
SYMBOL VOS IOS IB CMRR AVOL VOUT SR GBW IS IS/D 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 (Note 4) CONDITIONS J8, N8 Package S8 Package
TA = 25C + = 5V, V -, = OV, V VS S CM = 2.5V, CL 10pF, Pin 5 open circuit, unless otherwise noted.
MIN LT1195M/C TYP MAX 3.0 3.0 0.2 0.5 2.0 60 0.5 3.5 85 3.0 3.8 0.25 140 45 11 0.8 5 15 1.5 25 0.4 VCM = 2V to 3.5V RL = 150 to Ground, VOUT = 1V to 3V RL = 150 to Ground AV = -1, VOUT = 1V to 3V VOUT High VOUT Low 9.0 11.0 1.0 2.0 3.5 UNITS mV mV A A V dB V/mV V V V/s MHz mA mA A
Pin 5 at V - Pin 5 at V -
+5V ELECTRICAL CHARACTERISTICS -
VS = 5V, Pin 5 open circuit, unless otherwise noted.
SYMBOL VOS VOS /T IOS IB CMRR PSRR AVOL VOUT IS IS/D 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 CONDITIONS
-55C TA 125C, (Note 11)
MIN
VCM = -2.5V to 3.5V VS = 2.375V to 8V RL = 1k, VOUT = 3V RL = 150, VOUT = 3V RL = 1k Pin 5 at V -, (Note 9) Pin 5 at V -
55 55 1.50 0.25 3.7
LT1195M TYP 3.0 17 0.2 0.5 85 80 5.0 0.8 3.9 12 0.8 5
MAX 15.0 2.0 2.5
18 2.5 25
UNITS mV V/C A A dB dB V/mV V/mV V mA mA A
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LT1195 +5V ELECTRICAL CHARACTERISTICS -
VS = 5V, Pin 5 open circuit, unless otherwise noted.
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 SYMBOL VOS VOS /T IOS IB CMRR PSRR AVOL VOUT IS IS/D CONDITIONS J8, N8 Package S8 Package
0C TA 70C
LT1195C TYP 3.0 3.0 12 0.2 0.5 85 90 7.5 1.5 3.9 12 0.9 5
MIN
MAX 10.0 15.0 1.7 2.5
VCM = -2.5V to 3.5V VS = 2.375V to 5V RL = 1k, VOUT = 3V RL = 150, VOUT = 3V RL = 1k Pin 5 at V - (Note 9) Pin 5 at V -
60 60 2.0 0.3 3.7
17 2.0 25
UNITS mV mV V/C A A dB dB V/mV V/mV V mA mA A
5V ELECTRICAL CHARACTERISTICS
VS+ = 5V, VS- = OV, Pin 5 open circuit, unless otherwise noted.
SYMBOL VOS VOS /T IOS IB CMRR VOUT IS IS/D PARAMETER Input Offset Voltage Input VOS Drift Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Output Voltage Swing Supply Current Shutdown Supply Current Shutdown Pin Current CONDITIONS J8, N8 Package S8 Package
0C TA 70C
LT1195C TYP 1.0 1.0 15 0.2 0.5 2.0 60 3.5 85 3.75 0.15 12 0.9 5
MIN
MAX 10.0 15.0 1.7 2.5 3.5
UNITS mV mV V/C A A V dB V V mA mA A
(Note 4) VCM = 2V to 3.5V RL = 150 to Ground
VOUT High VOUT Low
Pin 5 at V - (Note 9) Pin 5 at V -
0.4 16 2.0 25
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted continuously. Note 3: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formats: LT1195MJ8/LT1195CJ8: TJ = TA + (PD * 100C/ W) LT1195N: TJ = TA + (PD * 100C/ W) LT1195CS: TJ = TA + (PD * 150C/ W) Note 4: Exceeding the input common mode range may cause the output to invert. Note 5: Slew rate is measured between 1V on the output, with 3V input step.
Note 6: Full power bandwidth is calculated from the slew rate measurement: FPBW = SR/2VP. 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). For RL = 1k, Diff AV = 0.3%, Diff Ph = 0.35. Note 9: See Applications Information section for shutdown at elevated temperatures. Do not operate the shutdown above TJ > 125C. Note 10: AC parameters are 100% tested on the ceramic and plastic DIP packaged parts (J8 and N8 suffix) and are sample tested on every lot of the SO packaged parts (S8 suffix). Note 11: Do not operate at AV < 2 for TA < 0C.
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LT1195 TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current vs Common Mode Voltage
3.0 VS = 5V 2.5
INPUT BIAS CURRENT (A)
2.0 1.5 1.0 0.5 0 -55C 25C 125C -5 -4 -3 -2 -1 0 1 2 3 COMMON MODE VOLTAGE (V) 4 5
COMMON MODE RANGE (V)
INPUT BIAS CURRENT (nA)
-0.5
Equivalent Input Noise Voltage vs Frequency
VS = 5V TA = 25C RS = 0
EQUIVALENT INPUT NOISE CURRENT (pA/Hz) EQUIVALENT INPUT NOISE VOLTAGE (nV/Hz)
600 500 400 300 200 100 0 10 100 1k 10k FREQUENCY (Hz) 100k
1195 G04
10 8 6 4 2 10 100 1k 10k FREQUENCY (Hz) 100k
1195 G05
SUPPLY CURRENT (mA)
Shutdown Supply Current vs Temperature
6 VS = 5V SHUTDOWN SUPPLY CURRENT (mA) 5 4 3 2 1 VS/D = -VEE 0 -50
-5 5
VS/D = -VEE + 0.6V OUTPUT VOLTAGE SWING (V)
3
VS/D = -VEE + 0.4V VS/D = -VEE + 0.2V
1
OPEN-LOOP GAIN (V/V)
-25
0 25 75 50 TEMPERATURE (C)
UW
1195 G01
Input Bias Current vs Temperature
100 VS = 5V 0 +IB V+ -0.5 -1.0 -1.5 -2.0
Common Mode Voltage vs Temperature
V + = 1.8V TO 9V
-100 -IB -200 IOS -300
2.0 1.5 1.0 0.5 V- -50 V + = -1.8V TO -9V
-400 -50
-25
0 25 75 50 TEMPERATURE (C)
100
125
-25
0 25 50 75 TEMPERATURE (C)
100
125
1195 G02
1195 G03
Equivalent Input Noise Current vs Frequency
14 12 VS = 5V TA = 25C RS = 100k
14 16
Supply Current vs Supply Voltage
-55C 25C
12 125C 10
8
0
2
8 4 6 SUPPLY VOLTAGE (V)
10
1195 G06
Output Voltage Swing vs Load Resistance
VS = 5V
Open-Loop Gain vs Temperature
10k VS = 5V VO = 3V 8k RL = 1k
TA = -55C TA = 25C TA = 125C
6k
-1 TA = 25C TA = 125C TA = -55C
4k
-3
2k
RL = 150
100
125
10
100 LOAD RESISTANCE ()
1k
1195 G08
0 -50
-25
0 25 75 50 TEMPERATURE (C)
100
125
1195 G07
1195 G09
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LT1195 TYPICAL PERFOR A CE CHARACTERISTICS
Gain and Phase vs Frequency
100 PHASE 80 80 100
GAIN-BANDWIDTH PRODUCT (MHz)
OPEN-LOOP VOLTAGE GAIN (V/V)
VOLTAGE GAIN (dB)
60 40 20 0 VS = 5V TA = 25C RL = 1k 1M 10M FREQUENCY (Hz) 100M
1195 G10
GAIN
-20 100k
Unity-Gain Frequency and Phase Margin vs Temperature
100 90 UNITY-GAIN FREQUENCY VS = 5V RL = 1k 80
UNITY-GAIN FREQUENCY (MHz)
90 80 70 60 50 40
COMMON MODE REJECTION RATIO (dB)
OUTPUT IMPEDANCE ()
UNITY-GAIN PHASE MARGIN
30 -50 -25
50 25 75 0 TEMPERATURE (C)
Power Supply Rejection Ratio vs Frequency
80
OUTPUT SHORT-CIRCUIT CURRENT (mA)
POWER SUPPLY REJECTION RATIO (dB)
OUTPUT SATURATION VOLTAGE (V)
60 +PSRR -PSRR
VS = 5V TA = 25C VRIPPLE = 300mV
40
20
0
-20 1k 10k 100k 1M FREQUENCY (Hz) 10M 100M
1195 G16
6
UW
100
1195 G13
Open-Loop Voltage Gain vs Load Resistance
20k VS = 5V VO = 3V TA = 25C 60
Gain-Bandwidth Product vs Supply Voltage
AV = 20dB 50 TA = -55C TA = 25C TA = 125C
16k
PHASE MARGIN (DEG)
60 40 20 0
12k
40
8k
4k
30
-20
0 100
1k LOAD RESISTANCE ()
10k
1195 G11
20
0
2
8 4 6 SUPPLY VOLTAGE (V)
10
1195 G12
Output Impedance vs Frequency
100 VS = 5V TA = 25C 10 AV = 10 1 AV = 1 0.1
PHASE MARGIN (DEG)
60 50 40 30 20 10
Common Mode Rejection Ratio vs Frequency
VS = 5V TA = 25C RL = 1k
70 60 50 40 30
20 125
0.01 1k 10k 1M 100k FREQUENCY (Hz) 10M 100M
1195 G14
0 100k
1M 10M FREQUENCY (Hz)
100M
1195 G15
Output Short-Circuit Current vs Temperature
36 VS = 5V 35 34 33 32 31 30 -50
V+ -0.7 -0.8 -0.9 -1.0 -1.1 0.5 0.4 0.3 0.2
Output Swing vs Supply Voltage
125C 25C -55C RL = RFB 1.8V VS 9V 125C 25C
-55C
-25
50 0 25 75 TEMPERATURE (C)
100
125
0.1 V- 0
2
6 4 SUPPLY VOLTAGE (V)
8
10
1195 G18
1195 G17
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LT1195 TYPICAL PERFOR A CE CHARACTERISTICS
Slew Rate vs Temperature
250 VS = 5V RFB = 1k VO = 2V AV = -1
4 VS = 5V TA = 25C RL = 1k 2 10mV 1mV
OUTPUT VOLTAGE STEP (V)
OUTPUT VOLTAGE STEP (V)
SLEW RATE (V/s)
-SLEW RATE 200
+SLEW RATE
150 -50
-25
50 0 25 75 TEMPERATURE (C)
Large-Signal Transient Response
AV = 1, RL = 1k
1195 G22
Overload Recovery
5V 3
AV = 1, VIN = 11VP-P
1195 G24
UW
100
1195 G19
Output Voltage Step vs Settling Time, AV = -1
4
Output Voltage Step vs Settling Time, AV = 1
VS = 5V TA = 25C RL = 1k 2 10mV 1mV
0
0 10mV -2 1mV
-2
10mV
1mV
-4
-4 0 200 100 300 SETTLING TIME (ns) 400
1195 G20
125
0
200 100 300 SETTLING TIME (ns)
400
1195 G21
Large-Signal Transient Response
AV = -1, RL = 1k
1195 G23
+ -
1
7 6 4
LT1195 2 8
INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A 150mV RANGE WITH A 1k to 10k POTENTIOMETER.
1195 G25
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LT1195
APPLICATIO S I FOR ATIO
Power Supply Bypassing The LT1195 is quite tolerant of power supply bypassing. In some applications a 0.1F ceramic disc capacitor placed 0.5 inches from the ampifier is all that is required. In applications requiring good settling time, it is important to use multiple bypass capacitors. A 0.1F ceramic disc in parallel with a 4.7F tantalum is recommended. Cable Terminations The LT1195 operational amplifier has been optimized as a low cost video cable driver. The 20mA guaranteed output current enables the LT1195 to easily deliver 6VP-P into 150, while operating on 5V supplies.
Double-Terminated Cable Driver
5V 3
+ -
7 LT1195 6 75 CABLE
2 RG
4 -5V
RFB
75
1195 AI01
Cable Driver Voltage Gain vs Frequency
8 6 4
VOLTAGE GAIN (dB)
2 0 -2 -4 -6 -8 -10 VS = 5V TA = 25C AV = 1 RFB = 1k RG = 1k
AV = 2 RFB = 1k RG = 330
-12 100k
1M 10M FREQUENCY (Hz)
100M
1195 AI02
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
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receiving end (75 to ground) to absorb unwanted energy. The best performance can be obtained by double termination (75 in series with the output of the amplifier, and 75 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. Using the Shutdown Feature The LT1195 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 shutdown by taking Pin 5 to V -. In shutdown, the amplifier dissipates 15mW while maintaining a true high impedance output state of 15k 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 1k the amplifier shuts off in 700ns. This shutoff can be under the control of HC CMOS operating between 0V and -5V.
Output Shutdown
1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN AV = 1, RL = SCOPE PROBE
1195 AI03
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LT1195
APPLICATIO S I FOR ATIO
Output Shutdown
1MHz SINE WAVE GATED OFF WITH SHUTDOWN PIN AV = 1, RL = 1k
1195 AI04
Detecting Pulses The front page shows a circuit for detecting very fast pulses. In this open-loop design, the detector diode is D1 and a level shifting or compensating diode is D2. A load resistor RL is connected to -5V, and an identical bias resistor RB is used to bias the compensating diode. Equal value resistors ensure that the diode drops are equal. A very fast pulse will exceed the amplifier slew rate and cause a long overload recovery time. Some amount of dV/dt limiting on the input can help this overload condition, however too much will delay the response. Also shown is the response to a 4VP-P input that is 150ns wide. The maximum output slew rate in the photo is 30V/s. This rate is set by the 30mA current limit driving 1000pF. Operation on Single 5V Supply The LT1195 has been optimized for a single 5V supply. This circuit amplifies standard composite video (1VP-P including sync) by 2 and drives a double-terminated 75 cable. Resistors R1 and R2 bias the amplifier at 2V, allowing the sync pulses to stay within the common mode range of the amplifier. Large coupling capacitors are required to pass the low frequency sidebands of the composite signal. A multiburst response and vector plot standard color burst are shown.
1195 AI07
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Single 5V Video Amplifier
VIN 5V 1k 3 10F 5V 7 LT1195 R1 3k 2 RG 1k 6 RFB 1k 1000F
W
UU
+ -
75
4
10k
75
100F
R2 2k
1195 AI05
Video Multiburst at Pin 6 of Amplifier
3V
2V
1V
0V
1195 AI06
Vector Plot of Standard Color Burst
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LT1195
APPLICATIO S I FOR ATIO
Send Color Video Over Twisted-Pair
With an LT1195 it is possible to send and receive color composite video signals more than 1000 feet on a low cost twisted-pair. A bidirectional "video bus" consists of the LT1195 op amp and the LT1187 video difference amplifier. A pair of LT1195s at TRANSMIT 1, is used to generate differential signals to drive the line which is back-terminated in its characteristic impedance. The LT1187 twisted-pair receiver, converts signals from differential to single-ended. Topology of the LT1187 provides for cable compensation at the amplifier's feedback node as shown. In this case, 1000 feet of twisted-pair is compensated with 1000pF and 50 to boost the 3dB bandwidth of the system from 750kHz to 4MHz. This bandwidth is adequate to pass a 3.58MHz chrome subcarrier and the 4.5MHz sound subcarrier. Attenuation in the cable can be compensated by lowering the gain set resistor RG. At TRANSMIT 2, another pair of LT1195s serve the dual function to provide cable termination via low output impedance and generate differential signals for TRANSMIT 2. Cable termination is made up of 15 and 33 attentuators to reduce the differential input signal to the LT1187. Maximum input signal for the LT1187 is 760mVP-P.
1.5MHz Square Wave Input and Unequalized Response Through 1000 Feet of Twisted-Pair
1195 A108
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1.5MHz Square Wave Input and Equalized Response Through 1000 Feet of Twisted-Pair
1195 A109
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Multiburst Pattern Passed Through 1000 Feet of Twisted-Pair
1195 A110
Vector Plot of Standard Color Burst Through 1000 Feet of Twisted-Pair
1195 A111
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LT1195
APPLICATIO S I FOR ATIO
TRANSMIT 1 3 75 1k 2 1k 1k 2
+
LT1195 6 6
-
1k 1k
-
LT1195 6 33 S/D 33 33 15 15 6 33 S/D 3 2 1 8 LT1195
3
+ + 5 - LT1187 + RFB -
300 3 2 1 8
15 15
75
6
1000pF RG 300 50
RECEIVE 2
SIWPLIFIED SCHEWATIC
7 V+ VBIAS VBIAS CM
+3 CFF -2 V+ V+ 6 VOUT
5 S/D
1 BAL
8 BAL
1195 SS
* SUBSTRATE DIODE, DO NOT FORWARD BIAS
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.
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Bidirectional Video Bus
TRANSMIT 2 3 1k 2 75
W
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UU
+
LT1195
-
1k
1k
- +
5 LT1187 RFB 300
2
3
1000 FT TWISTED-PAIR
+ - + -
6
75
1000pF 50 RG 300 RECEIVE 1
1195 AI12
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*
4 V-
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LT1195
PACKAGE DESCRIPTIO
.300 BSC (7.62 BSC)
CORNER LEADS OPTION (4 PLCS)
.008 - .018 (0.203 - 0.457)
0 - 15
.045 - .068 (1.143 - 1.650) FULL LEAD OPTION
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
.300 - .325 (7.620 - 8.255)
.009 - .015 (0.229 - 0.381) +.035 .325 -.015 +0.889 8.255 -0.381
.065 (1.651) TYP .125 (3.175) .020 MIN (0.508) MIN .018 .003 (0.457 0.076)
N8 0502
(
)
INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
NOTE: 1. DIMENSIONS ARE
.245 MIN
.030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT NOTE: INCHES 1. DIMENSIONS IN (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. .010 - .020 x 45 MOLD FLASH OR PROTRUSIONS SHALL (0.254 - 0.508) NOT EXCEED .006" (0.15mm) .008 - .010 0- 8 TYP (0.203 - 0.254)
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
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J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.200 (5.080) MAX .015 - .060 (0.381 - 1.524) .005 (0.127) MIN .405 (10.287) MAX 8 7 6 5 .023 - .045 (0.584 - 1.143) HALF LEAD OPTION .025 (0.635) RAD TYP 1 .045 - .065 (1.143 - 1.651) .014 - .026 (0.360 - 0.660) .100 (2.54) BSC .125 3.175 MIN
J8 0801
.220 - .310 (5.588 - 7.874)
2
3
4
OBSOLETE PACKAGE
N8 Package 8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.045 - .065 (1.143 - 1.651) .130 .005 (3.302 0.127) 8 .400* (10.160) MAX 7 6 5
.255 .015* (6.477 0.381)
.100 (2.54) BSC
1
2
3
4
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.045 .005 .050 BSC
N 8 .189 - .197 (4.801 - 5.004) NOTE 3 7 6 5
.160 .005 .228 - .244 (5.791 - 6.197)
N .150 - .157 (3.810 - 3.988) NOTE 3 N/2
1
2
3
N/2
1 .053 - .069 (1.346 - 1.752)
2
3
4
.004 - .010 (0.101 - 0.254)
.016 - .050 (0.406 - 1.270)
.014 - .019 (0.355 - 0.483) TYP
.050 (1.270) BSC
SO8 0502
1195fa LW/TP 1002 1K REV A * PRINTED IN USA
www.linear.com
LINEAR TECHNOLOGY CORPORATION 1993

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