Gehäuseinformationen
| Gehäuse | Pins VQFN (RGE) | 24 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 250 | SMALL T&R |
Merkmale von ADS8900B
- Resolution: 20-Bits
- High Sample Rate With No Latency Output:
- ADS8900B: 1-MSPS
- ADS8902B: 500-kSPS
- ADS8904B: 250-kSPS
- Integrated LDO Enables Low-Power, Single-Supply 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
Beschreibung von ADS8900B
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.