Texas Instruments ADS8902B
The ADS8900B, ADS8902B, and ADS8904B (ADS890xB) belong to a family of pin-to-pin compatible, high-speed, single-channel, highprecision, 20-bit successive-approximation-register (SAR) analog-to-digital converters (ADCs) with an integrated reference buffer and integrated lowdropout regulator (LDO). The device family includes the ADS891xB (18-bit) and ADS892xB (16-bit) resolution variants. The ADS89xxB boosts analog performance while maintaining high-resolution data transfer by using TI’s Enhanced-SPI feature.| Part No. | ADS8902B |
|---|---|
| Datasheet | ADS8902B Download |
| Manufacturer |  Texas Instruments |
| Description | High-Speed SAR ADCs |
| Buy | Stock & Price |
FEATURES
1FEATURES
●1 Resolution: 20-Bits● High Sample Rate With No Latency Output: – ADS8900B: 1-MSPS – ADS8902B: 500-kSPS – ADS8904B: 250-kSPS
● Integrated LDO Enables Low-Power, SingleSupply Operation
● Low Power Reference Buffer with No Droop
● Excellent AC and DC Performance: – SNR: 104.5-dB, THD: –125-dB – DNL: ±0.2-ppm, 20-Bit No-Missing-Codes – INL: ±1-ppm
● Wide Input Range: – Unipolar Differential Input Range: ±VREF – VREF Input Range: 2.5-V to 5-V
● Enhanced-SPI Digital Interface – Interface SCLK : 22-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 ADS89xxB in achieving high throughput at lower clock speeds, there by simplifying the board layout and lowering system cost. Enhanced-SPI also simplifies the host’s clocking-in of data there by making it ideal for applications involving FPGAs, DSPs.
