ZHCSLS4B August 2020 – July 2021 AMC3302
PRODUCTION DATA
Figure 8-3 shows an example of a TLV6001-based signal conversion and filter circuit for systems using single-ended-input ADCs to convert the analog output voltage into digital. With R1 = R2 = R3 = R4, the output voltage equals (VOUTP – VOUTN) + VREF. Tailor the bandwidth of this filter stage to the bandwidth requirement of the system. For most applications, R1 = R2 = R3 = R4 = 3.3 kΩ and C1 = C2 = 330 pF yields good performance.
For more information on the general procedure to design the filtering and driving stages of successive-approximation-register (SAR) ADCs, see the 18-Bit, 1MSPS Data Acquisition Block (DAQ) Optimized for Lowest Distortion and Noise reference guide and 18-Bit Data Acquisition Block (DAQ) Optimized for Lowest Power reference guide, available for download at www.ti.com.