3V DACs used in ±10V applications
Boosting DAC’s output to drive larger voltage tackled in this app note from MAXIM Integrated.
Many modern systems have the majority of their electronics powered by 3.3V or lower, but must drive external loads with ±10V, a range that is still very common in industrial applications. There are digital to analog converters (DACs) available that can drive loads with ±10V swings, but there are reasons to use a 3.3V DAC and amplify the output voltage up to ±10V.
3V DACs used in ±10V applications – [PDF]