ADS1209 Delta-Sigma Modulator The Texas Instruments ADS1209 two-channel, high-performance delta-sigma modulator features an 86dB dynamic range and operates from a single +5V supply. This TI ADS1209 analog-to-digital converter provides 16-bit resolution and 13-bit linearity. The TI ADS1209 delta-sigma modulator is designed for use in motor control, current measurement, resolver, industrial process control, and instrumentation applications.