ADS8902BRGER
Active20-BIT, 500-KSPS, ONE-CHANNEL SAR ADC WITH INTERNAL VREF BUFFER, INTERNAL LDO AND ENHANCED SPI
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ADS8902BRGER
Active20-BIT, 500-KSPS, ONE-CHANNEL SAR ADC WITH INTERNAL VREF BUFFER, INTERNAL LDO AND ENHANCED SPI
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS8902BRGER |
|---|---|
| Architecture | SAR |
| Configuration | S/H-ADC |
| Data Interface | SPI |
| Input Type | Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Bits | 20 |
| Number of Inputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 24-VFQFN Exposed Pad |
| Ratio - S/H:ADC | 1:1 |
| Reference Type | External, Internal |
| Sampling Rate (Per Second) | 500k |
| Supplier Device Package | 24-VQFN (4x4) |
| Voltage - Supply, Analog [Max] | 5.5 V |
| Voltage - Supply, Analog [Min] | 3 V |
| Voltage - Supply, Digital [Max] | 5.5 V |
| Voltage - Supply, Digital [Min] | 1.65 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 33.24 | |
| Digi-Reel® | 1 | $ 33.24 | ||
| Tape & Reel (TR) | 3000 | $ 21.70 | ||
| Texas Instruments | LARGE T&R | 1 | $ 26.09 | |
| 100 | $ 23.19 | |||
| 250 | $ 19.06 | |||
| 1000 | $ 17.05 | |||
Description
General part information
ADS8902B Series
The ADS8900B, ADS8902B, and ADS8904B (ADS890xB) belong to a family of pin-to-pin compatible, high-speed, single-channel, high-precision, 20-bit successive-approximation-register (SAR) analog-to-digital converters (ADCs) with an integrated reference buffer and integrated low-dropout 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. 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. ADS89xxB is compatible with standard SPI Interface.
The ADS89xxB has an internal data parity feature which can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.
Documents
Technical documentation and resources