GENERAL DESCRIPTION
This device is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream. The part operates from a +5 V supply and accepts a differential input range of 0 V to +2.5 V or ±1.25 V centered about a commonmode bias. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample and hold circuitry. The input information is contained in the output stream as a density of ones. The original information can be reconstructed with an appropriate digital filter.

FEATURES
   12.5 MHz Master Clock Frequency
   0 V to +2.5 V or ±1.25 V Input Range
   Single Bit Output Stream
   90 dB Dynamic Range
   Power Supplies: AVDD, DVDD: +5 V ± 5%
   On-Chip 2.5 V Voltage Reference
   28-Lead TSSOP