
Electronics
Semiconductor Division
Features
Triple video amplifier with internal resistors to set gains to
+2, +1, and -1
Independently enabled amplifiers
60 MHz -3 dB Bandwidth (A
20 MHz
±
0.1 dB gain flatness
0.06% differential gain (A
V
= 2, R
0.06
°
differential phase (A
V
High CMRR (75 dB), High PSRR (70 dB)
Dual
±
5V power supply
Low offset 2.0 mV
16-pin narrow SOIC package
300 V/
μ
s slew rate
Fast settling time: 0.1% in 35 ns
Voltage gain accuracy better than 0.5%
TTL or CMOS compatible enable inputs
V
= 2)
L
L
= 150
= 150
)
)
= 2, R
Applications
RGB amplifier
3:1 crosspoint switch
RGB switch
Video instrumentation amplifier
Selectable gain amplifier
Programmable filter
Active filter
Description
The RC6704 consists of three low power, wide band voltage
feedback operational amplifiers. Internal thin-film gain set-
ting resistors provide gains of +2, +1 and -1. Each channel is
capable of delivering a load current of at least 35mA.
Each amplifier can be independently enabled or disabled
with a TTL or CMOS signal. When disabled, the amplifier is
in a high impedance output state, presenting a very high
input to output isolation. The layout is optimized for low
channel to channel crosstalk.
The amplifiers are optimized for video applications where
low differential gain and low phase distortion are significant
requirements.
Block Diagram
65-7450
V
CCO
OUT1
EN1
OUT2
EN2
OUT3
EN3
V
EEO
IN1–
IN1+
V
CC
IN2–
IN2+
V
EE
IN3–
IN3+
R
R
R/2
R
R
R/2
R
R
R/2
R = 500
RC6704
Triple Fixed Gain Video Amplifier
with Separate Enable Inputs
Rev. 1.0.1