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AD712AQ Datasheet(PDF) 1 Page - Analog Devices

Part No. AD712AQ
Description  Dual Precision, Low Cost, High Speed BiFET Op Amp
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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Dual Precision, Low Cost,
High Speed BiFET Op Amp
AD712
Rev. G
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
Enhanced replacement for LF412 and TL082
AC performance
Settles to ±0.01% in 1.0 μs
16 V/μs minimum slew rate (AD712J)
3 MHz minimum unity-gain bandwidth (AD712J)
DC performance
200 V/mV minimum open-loop gain (AD712K)
Surface mount available in tape and reel in
accordance with the EIA-481A standard
MIL-STD-883B parts available
Single version available: AD711
Quad version: AD713
Available in PDIP, SOIC_N, and CERDIP packages
CONNECTION DIAGRAM
8
7
6
5
1
2
3
4
OUTPUT
V+
OUTPUT
V–
AD712
AMPLIFIER NO. 2
AMPLIFIER NO. 1
INVERTING
INPUT
NONINVERTING
INPUT
INVERTING
INPUT
NONINVERTING
INPUT
Figure 1. 8-Lead PDIP (N-Suffix),
SOIC_N (R-Suffix), and CERDIP (Q-Suffix)
GENERAL DESCRIPTION
The AD712 is a high speed, precision, monolithic operational
amplifier offering high performance at very modest prices. Its
very low offset voltage and offset voltage drift are the results of
advanced laser wafer trimming technology. These performance
benefits allow the user to easily upgrade existing designs that
use older precision BiFETs and, in many cases, bipolar op amps.
The superior ac and dc performance of this op amp makes it
suitable for active filter applications. With a slew rate of 16 V/μs
and a settling time of 1 μs to ±0.01%, the AD712 is ideal as a
buffer for 12-bit digital-to-analog and analog-to-digital
converters and as a high speed integrator. The settling time is
unmatched by any similar IC amplifier.
The combination of excellent noise performance and low input
current also make the AD712 useful for photo diode preamps.
Common-mode rejection of 88 dB and open-loop gain of
400 V/mV ensure 12-bit performance even in high speed
unity-gain buffer circuits.
The AD712 is pinned out in a standard op amp configuration
and is available in seven performance grades. The AD712J and
AD712K are rated over the commercial temperature range of
0°C to 70°C. The AD712A is rated over the industrial tempera-
ture range of −40°C to +85°C. The AD712S is rated over the
military temperature range of −55°C to +125°C and is available
processed to MIL-STD-883B, Rev. C.
Extended reliability PLUS screening is available, specified over
the commercial and industrial temperature ranges. PLUS
screening includes 168-hour burn-in, in addition to other
environmental and physical tests.
The AD712 is available in 8-lead PDIP, SOIC_N, and CERDIP
packages.
PRODUCT HIGHLIGHTS
1. The AD712 offers excellent overall performance at very
competitive prices.
2. The Analog Devices, Inc. advanced processing technology
and 100% testing guarantee a low input offset voltage (3 mV
maximum, J grade). Input offset voltage is specified in the
warmed-up condition.
3. Together with precision dc performance, the AD712 offers
excellent dynamic response. It settles to ±0.01% in 1 μs and
has a minimum slew rate of 16 V/μs. Thus, this device is ideal
for applications such as DAC and ADC buffers that require a
combination of superior ac and dc performance.




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