ADS8881

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design ADS8881 SBAS547D – MAY 2013 – REVISED AUGUST 2015 ADS8881x 18-Bit, 1-MSPS, Serial Interface, microPower, Miniature, True-Differential Input, SAR Analog-to-Digital Converter 1 Features 1 Sample Rate: 1 MHz No Latency Output Unipolar, True-Differential Input Range: –VREF to +VREF Wide Common-Mode Voltage Range: 0 V to VREF with 90-dB CMRR (min) SPI™-Compatible Serial Interface with Daisy-Chain Option Excellent AC and DC Performance: – ADS8881C: INL: ±1 LSB (typ), ±2.0 LSB (max) DNL: ±1.0 LSB (max), 18-Bit NMC SNR: 100 dB, THD: –115 dB – ADS8881I: INL: ±1.5 LSB (typ), ±3.0 LSB (max) DNL: +1.5 and –1 LSB (max), 18-Bit NMC SNR: 100 dB, THD: –115 dB Wide Operating Range: – AVDD: 2.7 V to 3.6 V – DVDD: 2.7 V to 3.6 V (Independent of AVDD) – REF: 2.5 V to 5 V (Independent of AVDD) – Operating Temperature: ADS8881C : 0°C to +70°C ADS8881I : –40°C to +85°C Low-Power Dissipation: – 5.5 mW at 1 MSPS – 0.55 mW at 100 kSPS – 55 µW at 10 kSPS Power-Down Current (AVDD): 50 nA Full-Scale Step Settling to 18 Bits: 290 ns Packages: MSOP-10 and VSON-10 2 Applications Automatic Test Equipment (ATE) Instrumentation and Process Controls Precision Medical Equipment Low-Power, Battery-Operated Instruments 3 Description The ADS8881 is an 18-bit, 1-MSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external ref...