Description

18-Bit, 500ksps, 8-Channel SAR ADC with 100dB SNR Features: 500ksps Throughput Rate 18-Bit Resolution with No Missing Codes 8-Channel Multiplexer with Selectable Input Range Fully Differential (±4.096V) Pseudo-Differential Unipolar (0V to 4.096V) Pseudo-Differential Bipolar (±2.048V) INL: ±2.75LSB (Maximum) SNR: 100dB (Fully Differential)/95dB (Pseudo-Differential) (Typical) at fIN = 1kHz THD: –110dB (Typical) at fIN = 1kHz Programmable Sequencer Selectable Digital Gain Compression Single 5V Supply with 1.8V to 5V I/O Voltages SPI-Compatible Serial I/O Onboard 2.048V Reference and Reference Buffer No Pipeline Delay, No Cycle Latency Power Dissipation 27mW (Typical) Guaranteed Operation to 125°C 32-Lead 5mm × 5mm QFN Package