Home datasheet AD706JRZ-REEL7

AD706JRZ-REEL7

Dual Picoampere Input Current Bipolar Op Amp
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Description

GENERAL DESCRIPTION
The AD706 is a dual, low power, bipolar op amp that has the low input bias current of a JFET amplifier, but which offers a significantly lower IB drift over temperature. 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 x at 125°C (unlike a JFET amp, for which IB doubles every 10°C for a 1000x increase at 125°C). The AD706 also achieves the microvolt offset voltage and low noise characteristics of a precision bipolar input amplifier.
Since it has < 200 pA of bias current, the AD706 does not require the commonly used “balancing” resistor. Furthermore, the current noise is only 50 fA/√Hz, which makes this amplifier usable with very high source impedances. At 600 A max supply current (per amplifier), the AD706 is well suited for today’s high density boards.
The AD706 is an excellent choice for use in low frequency active filters in 12-bit and 14-bit data acquisition systems, in precision instrumentation, and as a high quality integrator. The AD706 is internally compensated for unity gain and is available in five performance grades. The AD706J is rated over the commercial temperature range of 0°C to +70°C. The AD706A is rated for the extended industrial temperature range of –40°C to +85°C.
The AD706 is offered in two varieties of an 8-lead package: plastic mini-DIP and surface-mount (SOIC).

FEATURES
   High DC Precision
   100 μV Max Offset Voltage
   1.5 μV/C Max Offset Drift
   200 pA Max Input Bias Current
   0.5 μV p-p Voltage Noise, 0.1 Hz to 10 Hz
   750 μA Supply Current
   Available in 8-Lead Plastic Mini-DlP
      and Surface-Mount (SOIC) Packages
   Available in Tape and Reel in Accordance with
      EIA-481A Standard
   Quad Version: AD704

APPLICATIONS
   Low Frequency Active Filters
   Precision Instrumentation
   Precision Integrators

Features

Parameters

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Manufacturer information

ANALOG DEVICES

Analog Devices, Inc. Introduction - Analog Devices, Inc. (NASDAQ: ADI) defines innovation and excellence in signal processing. ADI's analog, mixed-signal, and digital signal processing (DSP) integrated circuits (IC) play a fundamental role in converting, conditioning, and processing real-world phenomena such as light, sound, temperature, motion, and pressure into electrical signals to be used in a wide array of electronic equipment. ADI is synonymous with high performance among electronics manufacturers and we collaborate with our customers to define the very best in the quality of the user experience. That means the clearest image, crispest sound, and optimum interface, size and performance in thousands of entertainment, medical, communications, industrial and other applications.


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