描述The ADS8471 is an 16-bit, 1-MSPS A/D converter with an internal 4.096-V reference and a pseudo-bipolar, unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8471 offers a full 16-bit interface or an 8-bit bus option using two read cycles. The ADS8471 is available in a 48-lead 7x7 QFN package and is characterized over the industrial –40°C to 85°C temperature range.特性0 to 1 MSPS Sampling Rate ±0.7 LSB Typ, ±1 LSB Max INL ±0.4 LSB Typ, ±0.75 LSB Max DNL 16-Bit NMC Ensured Over Temperature ±0.1 mV Offset Error ±0.15 ppm/°C Offset Error Drift ±0.015% FSR Gain Error ±0.7 ppm/°C Gain Error Drift 93 dB SNR, –110dB THD, 112dB SFDR Zero Latency Low Power: 220 mW at 1 MSPS Unipolar Input Range: 0 V to Vref Onboard Reference Onboard Reference Buffer High-Speed Parallel Interface Wide Digital Supply 2.7 V ~ 5.25 V 8-/16-Bit Bus Transfer 48-Pin 7×7 QFN Package APPLICATIONS Medical Instruments Optical Networking Transducer Interface High Accuracy Data Acquisition Systems Magnetometers