The AD4695 and AD4696 ADCs feature Easy Drive™ technology, a fully passive sampling network that automatically cancels the differential input current. Easy Drive technology does not use on-chip buffers, which compromise performance, but instead uses an architecture that maintains 0.002% full-scale error with input RC networks up to 100kΩ and 10μF.
The Easy Drive features of the AD4695 and AD4696 ADCs relax the drive requirements of the Analog Front End (AFE) and reference circuitry. Analog input high-Z mode and reference input high-Z mode simplify system designs, reduce component count, and increase channel density by removing the need for dedicated high-speed ADC drivers and reference buffers.
Advanced digital functionality makes the AD4695 and AD4696 compatible with a variety of low-power digital hosts. The low Serial Peripheral Interface (SPI) clock-rate requirements, on-chip customizable channel sequencers, and oversampling and decimation reduce the burden on the digital host system. Autocycle mode and threshold detection features enable low power, interrupt-driven firmware design by performing conversions autonomously and generating alerts based on channel-specific threshold limits.
The Analog Devices Inc. AD4695 and AD4696 ADCs are available in a 5.0mm x 5.0mm 32-lead Lead Frame Chip Scale Package (LFCSP) with operation specified from -40°C to +125°C.