SPVA030 August   2025 TPS4141-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2HV Measurement
    1. 2.1 Safety
    2. 2.2 Reliability
    3. 2.3 Scalability/Size
    4. 2.4 The Problem with Discrete Designs
    5. 2.5 Integrated Designs
    6. 2.6 TPS4141-Q1
    7. 2.7 RES60A-Q1
  6. 3Summary
  7. 4References

2.7 RES60A-Q1

If a system does not require the added safety of a switch and does not greatly benefit from the PGA, another integrated option is the RES60A-Q1.

RES60A-Q1 Typical Schematic Figure 2-5 RES60A-Q1 Typical Schematic

The RES60A-Q1, shown in Figure 4, consists of high-precision matched resistors for HV measurement. The device has an input resistance of 12.5MΩ and is capable of sustained sensing of 1400VDC. Much like the TPS4141-Q1, this also saves on space, has excellent ratio matching with minimal temperature/lifetime drift, and is more resilient to contamination when compared with a discrete design.

The RES60A-Q1 is a safe, reliable, and scalable design if no other components (switches, PGAs) are required.