Analog Devices Inc. AD4630-24/AD4632-24 Dual Channel 24-Bit SAR ADCs

Analog Devices Inc. AD4630-24/AD4632-24 Dual Channel 24-Bit SAR ADCs feature simultaneous sampling, Easy Drive™, and 2MSPS or 500kSPS. The ADCs have a guaranteed maximum ±0.9ppm INL and no missing codes at 24 bits. The AD4630-24/AD4632-24 achieves unparalleled precision from -40°C to +125°C.

Features

High performance
- Throughput: 2MSPS (AD4630-24) or 500kSPS (AD4632-24) per channel maximum
- INL: ±0.9ppm maximum from −40°C to +125°C
- SNR: 105.7dB typical
- THD: −127dB typical
- NSD: −166dBFS/Hz typical
Low power
- 15mW per channel at 2MSPS
- 5mW per channel at 500kSPS
- 1.5mW per channel at 10kSPS
Easy Drive features reduce system complexity
- Low 0.6μA input current for dc inputs at 2MSPS
- Wide input common-mode range: −(1/128) × V_REF to +(129/128) × V_REF

Flexible external reference voltage range: 4.096V to 5V
- Accurate integrated reference buffer with 2μF 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 the use of a digital isolator
- Compatible with 1.2V to 1.8V logic
7mm × 7mm 64-Ball CSP_BGA package with internal supply and reference capacitors to help reduce system footprint