View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
- Single-Supply Op Amp With True Drive to GND Design Guide
(PDF 509 KB)
10 Dec 2013 92 views
TIPD145 Design File
(ZIP 15 KB)
10 Dec 2013 34 views
Single supply rail-to-rail amplifiers are commonly used in analog systems. In some cases it is important to have an amplifier output that drives very close to GND (i.e. a few microvolts). However, no amplifier can inherently drive this close to GND. This TI Precision Design shows a simple design modification that allows most standard single supply rail-to-rail amplifiers to drive very close to GND.
- Drives output to true GND
- Avoids output swing limitations near GND using pull-down
- Single-Supply Solution