AD7983BRMZ-RL7

16Bit, 1.33MSPS PulSAR ADC in MSOP/QFN

Product Details

The AD7983 is a 16-bit, successive approximation, analog-to-digital converter ADC that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.

The AD7983 is housed in a 10-lead MSOP or a 10-lead QFN1 LFCSP with operation specified from −40°C to +85°C.

1QFN package in development. Contact sales for samples and availability.

**Applications**

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Battery-powered equipment

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Communications

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ATE

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Data acquisitions

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Medical instruments

### Features and Benefits

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16-bit resolution with no missing codes

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Throughput: 1.33 MSPS

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Low power dissipation: 10.5 mW typical @ 1.33 MSPS

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INL: ±0.6 LSB typical, ±1.25 LSB maximum

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Pseudo differential analog input range

0 V to VREF with VREF between 

2.9 V to 5.5 V

Any input range and easy to drive with the ADA4841

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SINAD: 91.6 dB @ 10 kHz

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THD: −115 dB @ 10 kHz

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No pipeline delay

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Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface

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Serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible

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Daisy-chain multiple ADCs and busy indicator