Texas Instruments ADS8914B
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 family includes the ADS890xB (20-bit) and ADS892xB (16-bit) resolution variants. The ADS891xB boost analog performance while maintaining high-resolution data transfer by using TI’s enhanced-SPI feature.| Part No. | ADS8914B |
|---|---|
| Datasheet | ADS8914B Download |
| Manufacturer |  Texas Instruments |
| Description | High-Speed SAR ADCs |
| Buy | Stock & Price |
FEATURES
1FEATURES
●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
Enhanced-SPI enables the ADS89xxB to achieve high throughput at lower clock speeds, thereby simplifying the board layout and lowering system cost.
