Low Cost, High Speed
Rail-to-Rail Amplifiers
AD8091/AD8092
CONNECTION DIAGRAMS
FEATURES
Low cost single (AD8091) and 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)
50 ns settling time to 0.1%
AD8091
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
–V
S
+IN
4
–IN
Figure 2. SOT23-5 (RJ-5)
−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 per amplifier
AD8092
OUT1
–IN1
1
2
3
4
8
7
6
5
+V
S
OUT
–IN2
+IN2
+IN1
–V
S
APPLICATIONS
NC = NO CONNECT
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
Clock buffers
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.
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. The AD8091/AD8092 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 ±± 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 equip-
ment. 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), a tiny SOT23-5 (AD8091), and an MSOP
(AD8092).
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2002–2007 Analog Devices, Inc. All rights reserved.
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