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AD7988-1

Analog Devices
Part Number AD7988-1
Manufacturer Analog Devices
Description 16-Bit Lower Power PulSAR ADCs
Published Jan 5, 2017
Detailed Description Data Sheet FEATURES Low power dissipation AD7988-1 400 µW at 100 kSPS (VDD only) 700 µW at 100 kSPS (total) AD7988-5 2 m...
Datasheet PDF File AD7988-1 PDF File

AD7988-1
AD7988-1

Overview
Data Sheet FEATURES Low power dissipation AD7988-1 400 µW at 100 kSPS (VDD only) 700 µW at 100 kSPS (total) AD7988-5 2 mW at 500 kSPS (VDD only) 3.
5 mW at 500 kSPS (total) 16-bit resolution with no missing codes Throughput: 100 kSPS/500 kSPS options INL: ±0.
6 LSB typical, ±1.
25 LSB maximum SINAD: 91.
5 dB at 10 kHz THD: −114 dB at 10 kHz Pseudo differential analog input range 0 V to VREF with VREF from 2.
5 V to 5.
0 V No pipeline delay Single-supply 2.
5 V operation with 1.
8 V/2.
5 V/3 V/5 V logic interface Proprietary SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface Daisy-chain multiple ADCs 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP, same space as SOT-23 Wide operating temperature range: −40°C to +125°C APPLICATIONS Battery-powered equipment Low power data acquisition systems Portable medical instruments ATE equipment Data acquisitions Communications 16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP AD7988-1/AD7988-5 GENERAL DESCRIPTION The AD7988-1/AD7988-51 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.
Table 1.
MSOP, LFCSP, LGA 14-/16-/18-/20-Bit Precision SAR ADCs and Integrated SAR ADC μModules® Bits 100 kSPS 400 kSPS to 250 kSPS 500 kSPS ≥1000 kSPS μModule Da...


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