Low-Cost, High-Speed
Rail-to-Rail Amplifiers
a
AD8091/AD8092
FEATURES
CONNECTION DIAGRAMS
Low-Cost Single (AD8091), Dual (AD8092)
Voltage Feedback Architecture
Fully Specified at +3 V, +5 V, and ؎5 V Supplies
Single-Supply Operation
Output Swings to within 25 mV of Either Rail
Input Voltage Range
SOIC-8
(R-8)
AD8091
1
2
3
4
8
7
6
5
NC
+V
NC
–IN
+IN
S
V
OUT
–0.2 V to +4 V; VS = +5 V
–V
S
NC
High-Speed and Fast Settling on +5 V
110 MHz –3 dB Bandwidth (G = +1)
145 V/s Slew Rate
NC = NO CONNECT
50 ns Settling Time to 0.1%
SOIC-8 and SOIC-8
Good Video Specifications (G = +2)
Gain Flatness of 0.1 dB to 20 MHz; RL = 150 ⍀
0.03% Differential Gain Error; RL = 1 k⍀
0.03؇ Differential Phase Error; RL = 1 k⍀
Low Distortion
–80 dBc Total Harmonic @ 1 MHz; RL = 100 ⍀
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
(RM-8, R-8)
AD8092
1
2
3
4
8
7
6
5
+V
S
OUT1
–IN1
+IN1
–
+
OUT
–IN2
+IN2
–
+
–V
S
SOT23-5
(RT-5)
APPLICATIONS
Coaxial Cable Driver
Active Filters
Video Switchers
Professional Cameras
CCD Imaging Systems
CD/DVD
AD8091
1
2
3
5
4
V
+V
OUT
S
–V
S
+IN
–IN
PRODUCT DESCRIPTION
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 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 wide bandwidth and fast slew rate make these amplifiers
useful in many general-purpose, high-speed applications where
dual power supplies of up to 6 V and single supplies from +3 V
to +12 V are needed.
Despite their low cost, the AD8091/AD8092 provide excellent over-
all 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 distor-
tion and fast settling make them ideal for active filter applications.
All of this low-cost performance is offered in an 8-lead SOIC
(AD8091/AD8092), along with a tiny SOT23-5 package
(AD8091) and a µSOIC package (AD8092).
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
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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© Analog Devices, Inc., 2002