AD4697 Datasheet | Analog Devices

FEATURES GENERAL DESCRIPTION - Easy Drive - Reduced analog input and reference drive requirements - On-chip reference buffer (WLCSP only) - Overvoltage protection up to 5 m A on each analog input - Long acquisition phase, ≥71.5% (715 ns/1000 ns) of cycle time at 1 MSPS - High performance - Sample rate: 500 k SPS (AD4697) or 1 MSPS (AD4698) - INL: ±1 LSB maximum - Guaranteed 16-bit, no missing codes - SINAD: 93 d B typical, f IN = 1 k Hz - Oversampled dynamic range: 111.2 d B, OSR = 64 - Small footprint, high channel density - 24-lead, 4.00 mm × 4.00 mm LFCSP - 36-lead, 2.960 mm × 2.960 mm WLCSP - Easy Drive features support system level designs with fewer ponents - Enhanced digital functionality - First conversion accurate, no latency or pipeline delay - Fast conversion time and dual-/quad-SDO modes allow low SPI clock rates - Customizable channel sequencer - On-chip oversampling and decimation - Threshold detection alerts - Offset and gain correction - Autonomous conversion (autocycle) mode - 1.14 V to 1.98 V logic SPI - Low power - 8 m W at f S = 1 MSPS and 4 m W at f S = 500 k SPS - 4 µW standby power dissipation with the internal LDO disabled - Internal LDO enables 2.7 V to 5.5 V, single analog supply operation - Wide operating temperature range: - 40°C to +125°C APPLICATIONS The AD4697/AD4698 are pact, high accuracy, low power, 8-channel, 16-bit, 500 k SPS/1 MSPS, multiplexed input precision, successive approximation register (SAR) analog-to-digital converters (ADCs) with Easy Drive features and extensive digital functionality. The AD4697/AD4698 are optimal for use in space constrained, multichannel, precision data acquisition systems and monitoring circuits. The AD4697/AD4698 feature a true 16-bit SAR ADC core with no missing codes, an 8-channel, low crosstalk multiplexer, a flexible channel sequencer, overvoltage protection clamp circuits on each analog input, on-chip oversampling and decimation, threshold detection and alert indicators, and an autonomous conversion...