a FEATURES Very High DC Precision 30 V max Offset Voltage 0.3 V/؇C max Offset Voltage Drift 0.35 V p max Voltage Noise (0.1 Hz to 10 Hz) 5 Million V/V min Open Loop Gain 130 dB min CMRR 120 dB min PSRR Matching Characteristics 30 V max Offset Voltage Match 0.3 V/؇C max Offset Voltage Drift Match 130 dB 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.
Ultralow Offset Voltage Dual Op Amp AD708 CONNECTION DIAGRAMS TO-99 (H) Package
Plastic (N ), and Cerdip (Q) Packages
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 specifications 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 nV p (0.1 Hz to 10 Hz). All dc specifications show excellent stability over temperature, with offset voltage drift typically 0.1 µV/°C and input bias current drift of 25 pA/°C max. Both CMRR (130 dB min) and PSRR (120 dB min) are an order of magnitude improved over any available single monolithic op amp except the AD707. The AD708 is available in four performance grades. The AD708J is rated over the commercial temperature range of 0°C to +70°C and jis available in a plastic mini-DIP package. The AD708A and AD708B are rated over the industrial temperature range of –40°C to +85°C and are available in a cerdip and TO99 package. The AD708S is rated over the military temperature range of –55°C to +125°C and is available in cerdip and TO-99 packages. Military versions are available processed to MILSTD-883B, Rev. C.
1. The combination of outstanding matching and individual specifications make the AD708 ideal for constructing high gain, precision instrumentation amplifiers. 2. The low offset voltage drift and low noise of the AD708 allows the designer to amplify very small signals without sacrificing overall system performance. 3. The AD708’s 10 V/µV typical open loop gain and 140 dB common-mode rejection make it ideal for precision applications. 4. Unmounted dice are available for hybrid circuit applications. 5. The AD708 is an improved replacement for the LT1002.
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.
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