+ 鈥?/div>
8
7
6
5
+V
S
OUT2
+IN2
01056-002
鈥揑N2
AD8031
NC
NC = NO CONNECT
Figure 1. 8-Lead PDIP (N) and
SOIC_N (R)
V
OUT 1
鈥揤
S 2
+IN
3
Figure 2. 8-Lead PDIP (N),
SOIC_N (R), and MSOP (RM)
+V
S
AD8031
5
4
鈥揑N
Figure 3. 5-Lead SOT-23 (RJ-5)
APPLICATIONS
High speed, battery-operated systems
High component density systems
Portable test instruments
A/D buffers
Active filters
High speed, set-and-demand amplifiers
Operating on supplies from +2.7 V to +12 V and dual supplies
up to 卤6 V, the AD8031/AD8032 are ideal for a wide range of
applications, from battery-operated systems with large bandwidth
requirements to high speed systems where component density
requires lower power dissipation. The AD8031/AD8032 are
available in 8-lead PDIP and 8-lead SOIC_N packages and
operate over the industrial temperature range of 鈭?0掳C to
+85掳C. The AD8031A is also available in the space-saving
5-lead SOT-23 package, and the AD8032A is available in an
8-lead MSOP package.
V
IN
= 4.85V p-p
V
OUT
= 4.65V p-p
G = +1
GENERAL DESCRIPTION
The AD8031 (single) and AD8032 (dual) single-supply, voltage
feedback amplifiers feature high speed performance with
80 MHz of small signal bandwidth, 30 V/渭s slew rate, and 125 ns
settling time. This performance is possible while consuming less
than 4.0 mW of power from a single 5 V supply. These features
increase the operation time of high speed, battery-powered
systems without compromising dynamic performance.
The products have true single-supply capability with rail-to-rail
input and output characteristics and are specified for +2.7 V, +5 V,
and 卤5 V supplies. The input voltage range can extend to 500 mV
beyond each rail. The output voltage swings to within 20 mV of
each rail providing the maximum output dynamic range.
The AD8031/AD8032 also offer excellent signal quality for only
800 渭A of supply current per amplifier; THD is 鈭?2 dBc with a
2 V p-p, 1 MHz output signal, and 鈥?6 dBc for a 100 kHz,
4.6 V p-p signal on +5 V supply. The low distortion and fast
settling time make them ideal as buffers to single-supply ADCs.
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 registered trademarks are the property of their respective owners.
1V/DIV
1V/DIV
01056-003
+
鈥?/div>
01056-004
2碌s/DIV
2碌s/DIV
Figure 4. Input V
IN
+5V
鈥?/div>
1k鈩?/div>
Figure 5. Output V
OUT
1.7pF
+2.5V
Figure 6. Rail-to-Rail Performance at 100 kHz
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
漏2006 Analog Devices, Inc. All rights reserved.
01056-006
V
IN
V
OUT
+
01056-005
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