500 MHz, G = +1 and +2 Triple
Video Buffers with Disable
a
AD8074/AD8075
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Dual Supply ؎5 V
High-Speed Fully Buffered Inputs and Outputs
600 MHz Bandwidth (–3 dB) 200 mV p-p
500 MHz Bandwidth (–3 dB) 2 V p-p
1600 V/s Slew Rate, G = +1
1350 V/s Slew Rate, G = +2
Fast Settling Time: 4 ns
Low Supply Current: <30 mA
Excellent Video Specifications (RL = 150 ⍀):
Gain Flatness of 0.1 dB to 50 MHz
0.01% Differential Gain Error
0.01؇ Differential Phase Error
“All Hostile“ Crosstalk
AD8074/AD8075
1
2
3
4
5
6
7
8
16
15
V
CC
OE
DGND
IN2
V
CC
G =
+1/+2
14 OUT2
13
V
AGND
IN1
EE
12 OUT1
11
G =
+1/+2
V
AGND
IN0
CC
G =
+1/+2
10 OUT0
V
V
9
EE
EE
–80 dB @ 10 MHz
–50 dB @ 100 MHz
High “OFF” Isolation of 90 dB @ 10 MHz
Low Cost
Fast Output Disable Feature
APPLICATIONS
RGB Buffer in LCD and Plasma Displays
RGB Driver
Video Routers
Table I. Truth Table
OUT0, 1, 2
PRODUCT DESCRIPTION
The AD8074/AD8075 are high-speed triple video buffers with
G = +1 and +2 respectively. They have a –3 dB full signal band-
width in excess of 450 MHz, along with slew rates in excess of
1400 V/µs. With better than –80 dB of all hostile crosstalk and
90 dB isolation, they are useful in many high-speed applica-
tions. The differential gain and differential phase error are 0.01%
and 0.01°. Gain flatness of 0.1 dB up to 50 MHz makes the
AD8074/AD8075 ideal for RGB buffering or driving. They
consume less than 30 mA on a 5 V supply.
OE
0
1
IN0, IN1, IN2
High Z
Both devices offer a high-speed disable feature that allows the
outputs to be put into a high impedance state. This allows the
building of larger input arrays while minimizing “OFF” chan-
nel output loading. The AD8074/AD8075 are offered in a
16-lead TSSOP package.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use,norforanyinfringementsofpatentsorotherrightsofthirdparties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
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Tel: 781/329-4700
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www.analog.com
© Analog Devices, Inc., 2001
ROCHESTER [ Rochester Electronics ]
