Analog Devices unveils Easy Drive SAR ADCs

Analog Devices has introduced a new portfolio of next-generation 16-to-24-bit, ultra-high precision successive approximation register (SAR) analogue-to-digital converters (ADCs).

Designed to simplify the often complex process of designing ADCs into instrumentation, industrial and healthcare applications this SAR ADC family features ADI’s patented Easy Drive technology and Flexi-SPI serial peripheral interface (SPI) that solves system design challenges and broadens the selection of directly compatible companion products.

The Easy Drive technology maintains device performance while eliminating many traditional system-level design challenges such as strict layout guidelines, rigid digital interface timing requirements, and the complicated selection of companion products. The Flexi-SPI digital interface eases host processor and ADC integration by providing easy-to-meet timing requirements. The combination of high performance with this reimagined digital interface provides, according to ADI, a better overall design experience while also accelerating the system design cycle.

First in the pin-compatible SAR ADC family of six, the 24-bit dual-channel, simultaneous sampling, two Megasamples (Msps) per second per channel AD4630-24 features an industry leading accuracy (INL) rating of 0.9 parts per million (ppm), which is a 4x improvement when compared to others. The AD4630-24 integrates a reference buffer and all critical decoupling components into a single chip, providing a 2x improvement in solution density when compared with others.

AD4630-24 SAR ADC Key Features:

  • A guaranteed accuracy rating of 0.9ppm INL with typical performance of 0.1ppm
  • A signal-to-noise ratio rating of 105.7dB typical
  • Small solution size, the chip scale ball grid array (CSP-BGA) package integrates all the critical power supply and reference bypass capacitors to reduce footprint and system component count
  • Wide common mode input range ensuring compatibility with both single-ended and differential input signal chains.