This datasheet describes the ADS8528, ADS8548, and ADS8568, 12-bit to 16-bit, 8-channel simultaneous-sampling SAR ADCs with parallel or serial interfaces.
The ADS85x8 family consists of 12-bit, 14-bit, and 16-bit analog-to-digital converters (ADCs) featuring eight low-power successive-approximation register (SAR) channels. These channels are grouped into four pairs capable of sampling signals simultaneously at rates up to 650kSPS. The devices support both parallel and serial interfaces and include a programmable, buffered internal reference. They are available in 64-pin VQFN and LQFP packages and operate over an extended industrial temperature range of -40°C to +125°C. This manual is written in Chinese.
| Resolution | 12-bit, 14-bit, or 16-bit |
|---|---|
| Channels | 8 channels |
| Max Data Rate (PAR) ADS8528 | 650kSPS |
| Max Data Rate (SER) ADS8528 | 480kSPS |
| Max Data Rate (PAR) ADS8548 | 600kSPS |
| Max Data Rate (SER) ADS8548 | 450kSPS |
| Max Data Rate (PAR) ADS8568 | 510kSPS |
| Max Data Rate (SER) ADS8568 | 400kSPS |
| SNR (Typ) ADS8528 | 73.9dB |
| SNR (Typ) ADS8548 | 85dB |
| SNR (Typ) ADS8568 | 91.5dB |
| THD (Typ) ADS8528 | -89dB |
| THD (Typ) ADS8548 | -91dB |
| THD (Typ) ADS8568 | -94dB |
| Internal Reference Range | 0.5V –2.5V or 0.5V –3.0V |
| Operating Temperature Range | -40°C to +125°C |
The maximum data rate for the ADS8528 in parallel mode is 650kSPS.
The maximum data rate for the ADS8568 in serial mode is 400kSPS.
The typical SNR of the ADS8568 is 91.5dB.
The total harmonic distortion of the ADS8548 is -91dB.