AD4630-16 Datasheet | Analog Devices

FEATURES FUNCTIONAL BLOCK DIAGRAM - High performance - Throughput: 2 MSPS (AD4630-16) or 500 k SPS (AD4632-16) per channel maximum - INL: ±3 ppm maximum from - 40°C to +125°C - SNR: 97.4 d B typical - THD: - 127 d B typical - NSD: - 157.4 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 - Wide mon-mode input 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 Figure 1. Functional Block Diagram GENERAL DESCRIPTION The AD4630-16/AD4632-16 are 2-channel, simultaneous sampling, Easy Drive™, 2 MSPS or 500 k SPS successive approximation register (SAR), analog-to-digital converters (ADCs). With a guaranteed maximum ±3 ppm integral nonlinearity (INL) and no missing codes at 16-bits, the AD4630-16/AD4632-16 achieve excellent precision from - 40°C to +125°C. Figure 1 shows the functional architecture of the AD4630-16/AD4632-16. A low-drift, internal precision-reference buffer eases voltage-reference sharing with other system circuitry. The AD4630-16/ AD4632-16 offer a typical dynamic range of 97.4 d B when using a 5 V reference. The low noise floor enables signal chains utilizing less gain and lower power. A block averaging filter...