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AD746 Datasheet(PDF) 1 Page - Analog Devices

Part No. AD746
Description  Dual Precision, 500 ns Settling, BiFET Op Amp
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD746 Datasheet(HTML) 1 Page - Analog Devices

   
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CONNECTION DIAGRAM
Plastic Mini-DIP (N)
Cerdip (Q) and
Plastic SOIC (R) Packages
REV. B
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Dual Precision, 500 ns
Settling, BiFET Op Amp
AD746
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
AC PERFORMANCE
500 ns Settling to 0.01% for 10 V Step
75 V/ s Slew Rate
0.0001% Total Harmonic Distortion (THD)
13 MHz Gain Bandwidth
Internal Compensation for Gains of +2 or Greater
DC PERFORMANCE
0.5 mV max Offset Voltage (AD746B)
10
V/ C max Drift (AD746B)
175 V/mV min Open Loop Gain (AD746B)
2
V p-p Noise, 0.1 Hz to 10 Hz
Available in Plastic Mini-DIP, Cerdip and Surface
Mount Packages
Available in Tape and Reel in Accordance with
EIA-481A Standard
MIL-STD-883B Processing also Available
Single Version: AD744
APPLICATIONS
Dual Output Buffers for 12- and 14-Bit DACs
Input Buffers for Precision ADCs, Wideband
Preamplifiers and Low Distortion Audio Circuitry
PRODUCT DESCRIPTION
The AD746 is a dual operational amplifier, consisting of two
AD744 BiFET op amps on a single chip. These precision
monolithic op amps offer excellent dc characteristics plus rapid
settling times, high slew rates and ample bandwidths. In
addition, the AD746 provides the close matching ac and dc
characteristics inherent to amplifiers sharing the same
monolithic die.
The single pole response of the AD746 provides fast settling:
500 ns to 0.01%. This feature, combined with its high dc
precision, makes it suitable for use as a buffer amplifier for 12-
or 14-bit DACs and ADCs. Furthermore, the AD746’s low total
harmonic distortion (THD) level of 0.0001% and very close
matching ac characteristics make it an ideal amplifier for many
demanding audio applications.
The AD746 is internally compensated for stable operation as a
unity gain inverter or as a noninverting amplifier with a gain of 2
or greater. It is available in four performance grades. The
AD746J is rated over the commercial temperature range of 0 to
+70
°C. The AD746A and AD746B are rated over the industrial
temperature range of –40
°C to +85°C. The AD746S is rated
over the military temperature range of –55
°C to +125°C and is
available processed to MIL-STD-883B, Rev. C.
The AD746 is available in three 8-pin packages: plastic mini
DIP, hermetic cerdip and surface mount (SOIC).
PRODUCT HIGHLIGHTS
1. The AD746 offers exceptional dynamic response for high
speed data acquisition systems. It settles to 0.01% in 500 ns
and has a 100% tested minimum slew rate of 50 V/
µs
(AD746B).
2. Outstanding dc precision is provided by a combination of
Analog Devices’ advanced processing technology, laser wafer
drift trimming and well-matched ion-implanted JFETs. Input
offset voltage, input bias current and input offset current are
specified in the warmed-up condition and are 100% tested.
3. Differential and multichannel systems will benefit from the
AD746’s very close matching of ac characteristics. Input
offset voltage specs are fully tested and guaranteed to a
maximum of 0.5 mV (AD746B).
4. The AD746 has very close, guaranteed matching of input
bias current between its two amplifiers.
5. Unity gain stable version AD712 also available.


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