Test DAC 28-Pin SSOP

The CS4373A is a high-performance, differential outputdigital-to-analog converter (DAC) with programmable attenuationand multiple operational modes. AC testmodes measure system dynamic performance throughTHD and CMRR tests while DC test modes are for gaincalibration and pulse tests.The CS4373A is driven by a ?S digital bit stream from theCS5376A digital filter test bit stream (TBS) generator. Ithas two sets of differential analog outputs, OUT andBUF, to simplify system design as dedicated outputs fortesting the electronics channel and for in-circuit sensortests. Analog output attenuation is selected by simple pinsettings and matches the gain of theCS3301A / CS3302A differential amplifiers for full-scaletesting at all gain ranges.The CS4373A test DAC provides self-test and precisioncalibration capability for high-resolution, low-frequencymulti-channel measurement systems designed fromCS3301A / CS3302A differential amplifiers,CS5371A / CS5372A ?S modulators and the CS5376Adigital filter.

• Digital ?S Input from CS5376A Digital Filter
• Selectable Differential Analog Outputs
• Precision output (OUT±) for electronics tests
• Buffered output (BUF±) for sensor tests
• Multiple AC and DC Operational Modes
• Signal bandwidth: DC to 100 Hz
• Max AC amplitude: 5 VPP differential
• Max DC amplitude: + 2.5 Vdc differential
• Selectable Attenuation for CS3301A / CS3302A
• 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64
• Outstanding Performance
• AC (OUT): -116 dB THD typical, -112 dB max
• AC (BUF): -108 dB THD typical, -90 dB max
• DC absolute accuracy: 0.4% typical, 1% max
• Low Power Consumption
• AC modes / DC modes: 40 mW / 20 mW
• Sleep mode / Power Down: 1 mW / 10 µW
• Extremely Small Footprint
• 28-pin SSOP package, 8 mm x 10 mm
• Bipolar Power Supply Configuration
• VA+ = +2.5 V;VA- = -2.5 V; VD = +3.3 V