LT1194CS8#PBF Linear Technology, LT1194CS8#PBF Datasheet - Page 9

• Manufacturer Part Number: LT1194CS8#PBF
• Description: IC AMP VIDEO DIF GAIN=10 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1194CS8#PBF

• Applications: Differential
• Number Of Circuits: 1
• -3db Bandwidth: 35MHz
• Slew Rate: 500 V/µs
• Current - Supply: 35mA
• Current - Output / Channel: 50mA
• Voltage - Supply, Single/dual (±): 4.75 V ~ 16 V, ±2.38 V ~ 8 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIO S I FOR ATIO
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:
The compensation capacitor C
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 approxi-
mately 10:1 or greater for easy compensation. For the
example shown the load resistor is 100 , the sense
resistor is 5.1 , and various loop compensation capaci-
tors cause the output to exhibit an underdamped, critically
and overdamped response.
I
O
=
R • 10
V
IN
16
14
12
10
8
6
4
2
100k
Double Terminated Cable Driver
3
5
2
Voltage Gain vs Frequency
+
–
U
LT1194
1
–5V
8
5V
1M
7
4
FREQUENCY (Hz)
V
C
U
6
C
10M
forces the LT1191 to be
75
W
CABLE
T
LT1194 • TA08
A
75
= 25 C
100M
U
C
CABLE
C
C
C
C
C
= 20pF
V
= 1pF
= 3pF
IN
V
IN
3
2
+
–
1% RESISTOR WORST-CASE CMRR = 22dB
TYPICALLY = 38dB
Differential Video Loop Thru Amplifier
LT1191
Voltage Controlled Current Source
2k
–5V
15k
15k
5V
7
4
20mA CURRENT SOURCE WITH DIFFERENT
for Power-Down Applications
Output Current Response
COMPENSATION CAPACITORS
6
1.5k
1.5k
6
C
LT1194
7
4
C
–5V
5V
–
+
3
2
5
2
5
3
+
–
LT1194
– 5V
5V
7
4
LT1194 • TA10
R
5.1
R
100
LT1194 • TA09
L
LT1194
I
O
6
= 20mA
LT1194 • TA11
OUTPUT
9