AD7665,pdf datasheet (16-Bit,

The AD7665 is a 16-bit, 570 kSPS, charge redistribution SAR,
analog-to-digital converter that operates from a single 5 V power
supply. It contains a high speed 16-bit sampling ADC, a resistor
input scaler that allows various input ranges, an internal conversion
clock, error correction circuits, and both serial and parallel
system interface ports.
The AD7665 is hardware factory-calibrated and is comprehensively
tested to ensure such ac parameters as signal-to-noise ratio
(SNR) and total harmonic distortion (THD), in addition to the
more traditional dc parameters of gain, offset, and linearity.
It features a very high sampling rate mode (Warp), a fast mode
(Normal) for asynchronous conversion rate applications, and for
low power applications, a reduced power mode (Impulse) where
the power is scaled with the throughput.