Low Cost, High Speed
Rail-to-Rail Amplifiers
AD8091/AD8092
FEATURES
CONNECTION DIAGRAMS
Low cost single (AD8091), dual (AD8092) amplifiers
Fully specified at +3 V, +5 V, and 5 V supplies
Single-supply operation
Output swings to within 25 mV of either rail
High-speed and fast settling on 5 V
110 MHz, −3 dB bandwidth (G = +1)
145 V/µs slew rate
NC
–IN
+IN
1
2
3
4
8
7
6
5
NC
AD8091
+V
S
V
OUT
–V
S
NC
NC = NO CONNECT
Figure 1. SOIC-8 (R-8)
AD8091
50 ns settling time to 0.1%
V
1
2
3
5
+V
S
OUT
Good video specifications (G = +2)
Gain flatness of 0.1 dB to 20 MHz; RL = 150 Ω
0.03% differential gain error; RL = 1 kΩ
0.03° differential phase error; RL = 1 kΩ
Low distortion
−80 dBc total harmonic @ 1 MHz; RL = 100 Ω
Outstanding load drive capability
Drives 45 mA, 0.5 V from supply rails
Drives 50 pF capacitive load (G = +1)
Low power of 4.4 mA/Amplifier
–V
S
+IN
4
–IN
Figure 2. SOT23-5 (RT-5)
AD8092
OUT1
–IN1
+IN1
1
2
3
4
8
7
6
5
+V
S
OUT
–IN2
+IN2
–V
S
NC = NO CONNECT
APPLICATIONS
Figure 3. MSOP-8 and SOIC-8 (RM-8, R-8)
Coaxial cable drivers
Active filters
Video switchers
Professional cameras
CCD imaging systems
CDs/DVDs
GENERAL DESCRIPTION
The AD8091 (single) and AD8092 (dual) are low cost, voltage
feedback, high speed amplifiers designed to operate on +3 V,
+5 V, or ±5 V supplies. They have true single-supply capability,
with an input voltage range extending 200 mV below the
negative rail and within 1 V of the positive rail.
The AD8091/AD8092 offer a low power supply current and can
operate on a single 3 V power supply. These features are ideally
suited for portable and battery-powered applications where size
and power are critical.
The wide bandwidth and fast slew rate make these amplifiers
useful in many general-purpose, high speed applications where
dual power supplies of up to ±± V and single supplies from +3
V to +12 V are needed.
Despite their low cost, the AD8091/AD8092 provide excellent
overall performance and versatility. The output voltage swing
extends to within 25 mV of each rail, providing the maximum
output dynamic range with excellent overdrive recovery. This
makes the AD8091/AD8092 useful for video electronics, such
as cameras, video switchers, or any high speed portable
equipment. Low distortion and fast settling make them ideal for
active filter applications.
This low cost performance is offered in an 8-lead SOIC
(AD8091/AD8092), along with a tiny SOT23-5 (AD8091) and a
MSOP (AD8092).
Rev. B
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