AD7988-5CCPZ-RL

16Bit, 500KSPS, Ultra Lower Power 16Bit SAR ADC

Product Details

The AD7988-1/AD7988-5 are 16-bit, successive approximation, analog-to-digital converters ADC that operate from a single power supply, VDD. The AD7988-1 offers a 100 kSPS throughput, and the AD7988-5 offers a 500 kSPS throughput. They are low power, 16-bit sampling ADCs with a versatile serial interface port. On the CNV rising edge, they sample an analog input, IN+, between 0 V to VREF with respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD.

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

The AD7988-1/AD7988-5 generics are housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C.

Applications

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Battery-powered equipment

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Low power data acquisition systems

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Portable medical instruments

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ATE equipment

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Data acquisitions

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Communications

### Features and Benefits

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Low power dissipation

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2 mW at 500 kSPS VDD only

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3.5 mW at 500 kSPS total

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16-bit resolution with no missing codes

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Throughput: 100 kSPS/500 kSPS options

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INL: ±0.6 LSB typical, ±1.25 LSB maximum

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SINAD: 91.5 dB at 10 kHz

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THD: −114 dB at 10 kHz

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Pseudo differential analog input range

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0 V to VREF with VREF from 2.5 V to 5.5 V

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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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Proprietary SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface

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Daisy-chain multiple ADCs

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10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP, same space as SOT-23

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Wide operating temperature range: −40°C to +125°C