LT1252
Low Cost
Video Amplifier
U
DESCRIPTIO
EATURE
S
F
■
■
■
■
■
■
■
■
Low Cost
The LT1252 is a low cost current feedback amplifier for
video applications. The LT1252 is ideal for driving low
impedance loads such as cables and filters. The wide
bandwidth and high slew rate of this amplifier make
driving RGB signals between PCs and workstations easy.
The linearity of the LT1252 is outstanding; it is unsur-
passed for driving composite video.
Current Feedback Amplifier
Differential Gain: 0.01%, RL = 150Ω, VS = ±5V
Differential Phase: 0.09°, RL = 150Ω, VS = ±5V
Flat to 30MHz, 0.1dB
100MHz Bandwidth on ±5V
Wide Supply Range: ±2V(4V) to ±14V(28V)
Low Power: 85mW at ±5V
TheLT1252isavailableinthe8-pinDIPandtheS8surface
mount package. For higher performance and shutdown
operation, see the LT1227. For dual and quad amplifiers
with similar performance see the LT1253/LT1254.
O U
PPLICATI
RGB Cable Drivers
Composite Video Cable Drivers
Gain Blocks in IF Stages
S
A
■
■
■
U
O
TYPICAL APPLICATI
Transient Response
5V
+
–
V
IN
75Ω
LT1252
–5V
75Ω
CABLE
R
F
620Ω
V
OUT
R
G
75Ω
620Ω
LT1252 • TA02
R
F
VS = ±5V
A
= 1 +
BW = 100MHz
V
R
G
AV = 2
R
L = 150Ω
AT AMPLIFIER OUTPUT.
6dB LESS AT V
V
O = 1V
.
OUT
LT1252 • TA01
1