Test DAC 28-Pin SSOP

The CS5373A is a high-performance, fourth-order ?S modulator integrated with a ?S digital-to-analog converter (DAC). When combined with a CS3301A/02A differential amplifier and the CS5378 digital filter, a small, low-power, self-testing, high-accuracy, singlechannel measurement system results.The modulator has high dynamic range and low total harmonic distortion with very low power consumption. It converts differential analog input signals from the CS3301A/02A amplifier to an oversampled serial bit stream at 512 kbits per second. This versampled bit stream is then decimated by the CS5378 digital filter to a 24-bit output at the selected output word rate.The test DAC operates in either AC or DC test modes. AC test modes measure system dynamic performance through THD and CMRR tests while DC test modes are for gain calibration and pulse tests. It has two sets of differential analog outputs, OUT and BUF, as dedicated outputs for testing the electronics channel and for incircuit sensor tests. Output attenuation settings are binary weighted and match the gain settings of the CS3301A/02A differential amplifiers for full-scale testing at all gain ranges.

• Fourth-order ?S Architecture
  • Clock-jitter-tolerant architecture
  • Input signal bandwidth: DC to 2 kHz
  • Max AC amplitude: 5 Vpp differential
  • Max DC amplitude: ± 2.5 Vdc differential
• Low Total Harmonic Distortion
• Digital ?S Input from CS5378 Digital Filter
• Selectable Differential Analog Outputs
• Multiple AC and DC Operational Modes
• Extremely Small Footprint
  • 28-pin SSOP package, 8 mm x 10 mm