AD4632-24 Datasheet | Analog Devices

FEATURES - High performance - Throughput: 2 MSPS (AD4630-24) or 500 k SPS (AD4632-24) per channel maximum - INL: ±0.9 ppm maximum from - 40°C to +125°C - SNR: 105.7 d B typical - THD: - 127 d B typical - NSD: - 166 d BFS/Hz typical - Low power - 15 m W per channel at 2 MSPS - 5 m W per channel at 500 k SPS - 1.5 m W per channel at 10 k SPS - Easy Drive features reduce system plexity - Low 0.6 μA input current for dc inputs at 2 MSPS - Wide input mon-mode range: - (1/128) × VREF to +(129/128) × VREF - Flexible external reference voltage range: 4.096 V to 5 V - Accurate integrated reference buffer with 2 μF bypass capacitor - Programmable block averaging filter with up to 216 decimation - Extended sample resolution to 30 bits - Overrange and synchronization bits - Flexi-SPI digital interface - 1, 2, or 4 SDO lanes per channel allows slower SCK - Echo clock mode simplifies use of digital isolator - patible with 1.2 V to 1.8 V logic - 7 mm × 7 mm 64-Ball CSP_BGA package with internal supply and reference capacitors to help reduce system footprint APPLICATIONS - Automatic test equipment - Digital control loops - Medical instrumentation - Seismology - Semiconductor manufacturing - Scientific instrumentation FUNCTIONAL BLOCK DIAGRAM Figure 1. Functional Block Diagram GENERAL DESCRIPTION The AD4630-24/AD4632-24 are two-channel, simultaneous sampling, Easy Drive™, 2 MSPS or 500 k SPS successive approximation register (SAR) analog-to-digital converters (ADCs). With a guaranteed maximum ±0.9 ppm INL and no missing codes at 24 bits, the AD4630-24/AD4632-24 achieve unparalleled precision from - 40°C to +125°C. Figure 1 shows the functional architecture of the AD4630-24/AD4632-24. A low drift, internal precision reference buffer eases voltage reference sharing with other system circuitry. The AD4630-24/ AD4632-24 offer a typical dynamic range of 106 d B when using a 5 V reference. The low noise floor enables signal chains requiring less gain and lower power. A block averaging filter with...