LT1189C Linear Technology, LT1189C Datasheet

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LT1189C

Manufacturer Part Number
LT1189C
Description
Low Power Video Difference Amplifier
Manufacturer
Linear Technology
Datasheet

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FEATURE
A
TYPICAL
PPLICATI
Differential or Single-Ended Gain Block (Adjustable)
–3dB Bandwidth, A
Slew Rate
Low Supply Current
Output Current
CMRR at 10MHz
LT1193 Pin Out
Low Cost
Single 5V Operation
Drives Cables Directly
Output Shutdown
Line Receivers
Video Signal Processing
Cable Drivers
Tape and Disc Drive Systems
Cable Sense Amplifier for Loop Through Connections
CABLE
V
IN
S
A
V
DC
O
PPLICATI
U
V
with DC Adjust
S
3
2
1
8
100
= 10
+
+
LT1189
–5V
5V
909
7
4
O
U
6
LT1189 • TA01
V
OUT
220V/ s
35MHz
13mA
20mA
48dB
D
The LT1189 is a difference amplifier optimized for opera-
tion on 5V, or a single 5V supply, and gain 10. This
versatile amplifier features uncommitted high input im-
pedance (+) and (–) inputs, and can be used in differential
or single-ended configurations. Additionally, a second set
of inputs give gain adjustment and DC control to the
difference amplifier.
The LT1189’s high slew rate, 220V/ s, wide bandwidth,
35MHz, and 20mA output current require only 13mA of
supply current. The shutdown feature reduces the power
dissipation to a mere 15mW, and allows multiple amplifi-
ers to drive the same cable.
The LT1189 is a low power, gain of 10 stable version of the
popular LT1193, and is available in 8-pin miniDIPs and SO
packages. For lower gain applications see the LT1187
data sheet.
ESCRIPTIO
Video Difference Amplifier
50
40
30
20
10
0
0.1
Closed-Loop Gain vs Frequency
U
1
FREQUENCY (MHz)
10
V
R
Low Power
S
L
= ±5V
= 1k
LT1189 • TA02
100
LT1189
1

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LT1189C Summary of contents

Page 1

S FEATURE Differential or Single-Ended Gain Block (Adjustable) –3dB Bandwidth Slew Rate Low Supply Current Output Current CMRR at 10MHz LT1193 Pin Out Low Cost Single 5V Operation Drives Cables Directly Output Shutdown O U PPLICATI ...

Page 2

... Differential Input Voltage ........................................ 6V Input Voltage .......................................................... V Output Short Circuit Duration (Note 1) ........ Continuous Operating Temperature Range LT1189M ..................................... – 150 C LT1189C............................................. Junction Temperature (Note 2) Plastic Package (CN8,CS8) ......................... 150 C Ceramic Package (CJ8,MJ8) ....................... 175 C Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec.)................ 300 C – ...

Page 3

ELECTRICAL C HARA TERISTICS 5V 0V 900 from pins REF FB1 SYMBOL PARAMETER I Shutdown Pin Current S/D t Turn On Time on t Turn Off ...

Page 4

... Shutdown Supply Current I Shutdown Pin Current S/D Note 1: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted continuously. Note calculated from the ambient temperature according to the following formulas: D LT1189MJ8, LT1189CJ8 LT1189CN8 ...

Page 5

W U TYPICAL PERFOR A Input Bias Current vs Common-Mode Voltage 3 ±5V S 2.5 2.0 1.5 –55°C 1.0 25°C 0.5 0 125°C – 0.5 – 5 – 4 –3 –2 – ...

Page 6

LT1189 W U TYPICAL PERFOR A Gain, Phase vs Frequency 100 V = ± 25°C PHASE GAIN –20 100k 1M 10M 100M FREQUENCY (Hz) LT1189 • TPC11 ...

Page 7

W U TYPICAL PERFOR A Output Voltage Swing vs Load Resistance ± –55° 25° –55°C A – 25°C A –3 –5 10 100 LOAD ...

Page 8

LT1189 PPLICATI S I FOR ATIO The primary use of the LT1189 is in converting high speed differential signals to a single-ended output. The LT1189 video difference amplifier has two uncommitted high input impedance (+) and ...

Page 9

PPLICATI S I FOR ATIO A Instrumentation Amplifier Rejects High Voltage Instrumentation amplifiers are often used to process slowly varying outputs from transducers. With the LT1189 it is easy to make an instrumentation amplifier that can respond ...

Page 10

LT1189 PPLICATI FOR ATIO Closed-Loop Voltage Gain vs Frequency ± 25° – 900 FB ...

Page 11

... CABLE 1 CHANNEL SELECT CABLE 2 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights The ability to maintain shutoff is shown on the curve Shut down Supply Current vs Temperature in the Typical Per- formance Characteristics section ...

Page 12

... BSC BA/LT/GP 0293 10K REV 0 LINEAR TECHNOLOGY CORPORATION 1993 + OUT * – 0.220 – 0.310 (5.588 – 7.874) 0.250 ± 0.010 (6.350 ± 0.254) 0.150 – ...

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