AD706 Datasheet PDF | Analog Devices

Analog Devices AD706

The AD706 is offered in three varieties of an 8-lead package: plastic mini-DIP, hermetic cerdip and surface mount (SOIC). It utilizes superbeta bipolar input transistors to achieve picoampere input bias current levels (similar to FET input amplifiers at room temperature), while its IB typically only increases by 5× at 125°C (unlike a BiFET amp, for which IB doubles every 10°C for a 1000× increase at 125°C). The AD706 also achieves the microvolt offset voltage and low noise characteristics of a precision bipolar input amplifier.

Part No.	AD706
Datasheet	AD706 Download
Manufacturer	Analog Devices
Description	Dual Picoampere Input Current Bipolar Op Amp
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APPLICATIONS

Low Frequency Active Filters Precision Instrumentation Precision Integrators Dual Picoampere Input Current Bipolar Op Amp AD706 CONNECTION DIAGRAM Plastic Mini-DIP (N) Cerdip (Q) and Plastic SOIC (R) Packages AMPLIFIER 1 OUTPUT 1 –IN 2 ؉IN 3 V– 4 AMPLIFIER 2 AD706 8 7 6 5 V؉ OUTPUT –IN ؉IN TOP VIEW “J” grade chips are also available. PRODUCT HIGHLIGHTS PRODUCT

DESCRIPTION

The AD706 is a dual, low power, bipolar op amp that has the low input bias current of a BiFET amplifier, but which offers a significantly lower IB drift over temperature. Since it has only 1/20 the input bias current of an OP07, the AD706 does not require the commonly used “balancing” resistor. Furthermore, the current noise is 1/5 that of the OP07, which makes this amplifier usable with much higher source impedances. At 1/6 the supply current (per amplifier) of the OP07, the AD706 is better suited for today’s higher density boards. The AD706 is an excellent choice for use in low frequency active filters in 12- and 14-bit data acquisition systems, in precision instrumentation and as a high quality integrator.