High-Speed SAR ADCs
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ADS8910B ADS8912B ADS8914B
SBAS7...
Description
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ADS8910B ADS8912B ADS8914B
SBAS707B – JUNE 2016 – REVISED JANUARY 2018
ADS891xB 18-Bit, High-Speed SAR ADCs With Integrated Reference Buffer and Enhanced Performance Features
1 Features
1 Resolution: 18-Bits High Sample Rate With No Latency Output:
– ADS8910B: 1-MSPS – ADS8912B: 500-kSPS – ADS8914B: 250-kSPS Integrated LDO Enables Single-Supply Operation Low-Power Reference Buffer With No Droop Excellent AC and DC Performance: – SNR: 102.5-dB, THD: –125-dB – INL: ±0.5-LSB – DNL: ±0.2-LSB, 18-Bit No-Missing-Codes Wide Input Range: – Unipolar Differential Input Range: ±VREF – VREF Input Range: 2.5-V to 5-V Single-Supply, Low-Power Operation (Includes Internal Reference Buffer and LDO) – ADS8910B : 21-mW at 1-MSPS – ADS8912B : 16-mW at 500-kSPS – ADS8914B : 14-mW at 250-kSPS Enhanced-SPI Digital Interface – Interface SCLK: 20-MHz at 1-MSPS – Configurable Data Parity Output Extended Temperature Range: –40°C to +125°C Small Footprint: 4-mm × 4-mm VQFN
2 Applications
Test and Measurement Medical Imaging High-Precision, High-Speed Data Acquisition
3 Description
The ADS8910B, ADS8912B, and ADS8914B (ADS891xB) belong to a family of pin-to-pin compatible, high-speed, single-channel, highprecision, 18-bit successive approximation register (SAR) analog-to-digital convertors (ADCs) with an integrated reference buffer and integrated lowdropout regulator (LDO). The device fami...
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