SBAA222A October 2017 – April 2025 ADS1282-SP
Figure 5-1 shows the test circuit that was used. The positive voltage reference, VREFP, and the analog power supply, AVDD, are driven by a filtered VCC1 power supply. The VCC1 power supply also provides input power to three voltage regulators: 3.3V, 1.25V, and 1.8V. The VCCQ1 power supply is filtered and provides the input power for the digital power supply (DVDD.)
Figure 5-1 Test Circuit