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Product category: Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: AD7680
Edited by the Electronicstalk Editorial Team on 7 May 2002

16bit SAR convertor
shrinks to SOT-23 package

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The AD7680 is a 16bit successive approximation register (SAR) ADC with 15bit no missing codes in a 6-lead SOT-23 package

This is the industry's first 16bit SAR ADC in this tiny package. Featuring a fast throughput rate of 100Ksample/s, and using an advanced design technique to achieve low power dissipation (typically 3mW at 3V or 15mW at 5V), this convertor is the most recent addition to the Analog Devices PulSAR family of 16bit SAR ADCs.

Because the AD7680 is based on the SAR architecture, there are no pipeline delays.

The AD7680 was designed for a wide variety of portable and battery-powered applications in medical instrumentation, control systems, remote data acquisition, and mobile communications.

The ADC operates from a single 3.0 to 5.25V power supply and contains a low noise, wide bandwidth track/hold amplifier that guarantees performance with inputs up to 10kHz.

Data acquisition and conversion are controlled using the chip select pin and an external serial clock, allowing the device to interface with microprocessors or DSPs.

The part goes into a low-power mode when the conversion is complete, reducing the average power dissipation and providing maximise efficiency at lower throughput rates.

Maximum power consumption in the shut-down mode is only 0.5uA.

The reference for the AD7680 is derived from the power supply, allowing the widest dynamic input range to the ADC.

The AD7680 operates within the -40 to +85C temperature range and is sampling now.

It is priced at $6.00 in 1000-piece quantities.

(This was Electronicstalk's Top Story on 7 May 2002)

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