AD Ultralow Offset Voltage Dual Op Amp AD708 Data Handbook (1) User Manual

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Ultralow Offset Voltage Dual Op Amp

AD708

FEATURES

CONNECTION DIAGRAMS

Very High DC Precision

TO-99 (H) Package

30 m V max Offset Voltage 0.3 m V/8C max Offset Voltage Drift 0.35 m V p-p max Voltage Noise (0.1 Hz to 10 Hz) 5 Million V/V min Open Loop Gain 130 d B min CMRR 120 d B min PSRR Matching Characteristics 30 m V max Offset Voltage Match 0.3 m V/8C max Offset Voltage Drift Match 130 d B min CMRR Match Single Version: AD707 Available in 8-Pin Plastic Mini-DIP, Hermetic Cerdip and TO-99 Metal Can Packages, Chips and /883B Parts Available.

Plastic (N ), and Cerdip (Q) Packages

PRODUCT DESCRIPTION The AD708 is a very high precision, dual monolithic operational amplifier. Each amplifier individually offers excellent dc precision with the best available max offset voltage and offset voltage drift of any dual bipolar op amp. In addition, the matching specifica- tions are the best available in any dual op amp. The AD708 sets a new standards for dual precision op amps by providing 5 V/µV min open loop gain and guaranteed max input voltage noise of 350 n V p-p (0.1 Hz to 10 Hz). All dc specifica- tions show excellent stability over temperature, with offset

APPLICATION HIGHLIGHTS

voltage drift typically 0.1 µV/°C and input bias current drift of

1. The combination of outstanding matching and individual

25 p A/°C max. Both CMRR (130 d B min) and PSRR (120 d B

specifications make the AD708 ideal for constructing high

min) are an order of magnitude improved over any available

gain, precision instrumentation amplifiers.

single monolithic op amp except the AD707.

2. The low offset voltage drift and low noise of the AD708

The AD708 is available in four performance grades. The

allows the designer to amplify very small signals without

AD708J is rated over the commercial temperature range of 0°C

sacrificing overall system performance.

to +70°C and jis available in a plastic mini-DIP package. The AD708A and AD708B are rated over the industrial temperature 3. The AD708’s 10 V/µV typical open loop gain and 140 d B range of –40°C to +85°C and are available in a cerdip and TO- common-mode rejection make it ideal for precision 99 package. The AD708S is rated over the military temperature applications. range of –55°C to +125°C and is available in cerdip and TO-99

4. Unmounted dice are available for hybrid circuit applications.

packages. Military versions are available processed to MIL-

5. The AD708 is an improved replacement for the LT1002.

STD-883B, Rev. C.

REV. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. otherwise under any patent or patent rights of Analog Devices. Tel: 617/329-4700 Fax: 617/326-8703