The ADS1675 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 4MSPS with outstanding ac performance and dc accuracy.

The ADS1675 ADC is comprised of a low-drift modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: Low-Latency or Wide-Bandwidth. The Low-Latency filter settles quickly (as fast as 2.65µs) for applications with large instantaneous changes, such as a multiplexer. The Wide-Bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than ±0.00002dB, stop band attenuation of 86dB, and a bandwidth of 1.7MHz.

• AC Performance:
  103dB of Dynamic Range at 4MSPS
  111dB of Dynamic Range at 125kSPS
  –107dB THD

• DC Accuracy:
  3ppm INL
  4µV/°C Offset Drift
  4ppm/°C Gain Drift

• Programmable Digital Filter with User-Selectable Path:

• Low-Latency: Completely settles in 2.65µs

• Wide-Bandwidth: 1.7MHz BW with flat passband

• Flexible Read-Only Serial Interface:

• Standard CMOS

• Serialized LVDS

• Easy Conversion Control with START Pin

• Out-of-Range Detection

• Supply: Analog +5V, Digital +3V

• Power: 575mW

• APPLICATIONS

• Automated Test Equipment

• Medical Imaging

• Scientific Instrumentation

• Test and Measurement