ADA4856-3 Datasheet, PDF (1/20 Pages) Analog Devices – Single-Supply, High Speed, Fixed G = +2, Rail-to-Rail Output Video Amplifier

Single-Supply, High Speed, Fixed G = +2,
Rail-to-Rail Output Video Amplifier
ADA4856-3
FEATURES
Voltage feedback architecture
Rail-to-rail output swing: 0.1 V to 4.9 V
High speed amplifier
−3 dB bandwidth: 225 MHz
0.1 dB flatness at 2 V p-p: 74 MHz
Slew rate: 800 V/μs
Settling time to 0.1% with 2 V step: 5 ns
High input common-mode voltage range
−VS − 0.2 V to +VS − 1 V
Supply range: 3 V to 5.5 V
Differential gain error: 0.01%
Differential phase error: 0.01°
Low power
7.8 mA/amplifier typical supply current
Power-down feature
Available in 16-lead LFCSP
APPLICATIONS
Professional video
Consumer video
Imaging
Instrumentation
Base stations
Active filters
Buffers
CONNECTION DIAGRAM
16 15 14 13
NC 1
+IN2 2
NC 3
PD 4
ADA4856-3
12 +V_S
11 OUT2
10 –IN2
9 +VS
5678
NOTES
1. NC = NO CONNECT.
2. EXPOSED PAD CONNECTED TO –V_S.
Figure 1.
GENERAL DESCRIPTION
The ADA4856-3 (triple) is a fixed gain of +2, single-supply, rail-
to-rail output video amplifier. It provides excellent video
performance with 225 MHz, −3 dB bandwidth, 800 V/μs slew rate,
and 74 MHz, 0.1 dB flatness into a 150 Ω load. It has a wide
input common-mode voltage range that extends 0.2 V below
ground and 1 V below the positive rail. In addition, the output
voltage swings within 200 mV of either supply, making this video
amplifier easy to use on single-supply voltages as low as 3.3 V.
The ADA4856-3 offers a typical low power of 7.8 mA per amplifier,
while being capable of delivering up to 52 mA of load current.
It also features a power-down function for power sensitive
applications that reduces the supply current to 1 mA.
The ADA4856-3 is available in a 16-lead LFCSP and is designed
to work over the extended industrial temperature range of
−40°C to +105°C.
7
V_S = 5V, V_OUT = 1.4V p-p _{VS = 3.3V, VOUT = 1.4V p-p}
6
V_S = 3.3V, V_OUT = 2V p-p
5
V_S = 5V, V_OUT = 2V p-p
4
3
2
1
R_L = 150Ω
0
1
10
100
FREQUENCY (MHz)
1000
Figure 2. Large Signal Frequency Response
Rev. 0
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