The LMC7111 can be used as a voltage reference buffer for an analog-to-digital converter (ADC). This configuration works best for ADCs with the reference input is a static load, such as dual slope integrating ADCs. Converters with a reference input that is a dynamic load (the reference current changes with time) can require a faster device, such as the LMC7101 or the LMC7131.

The small size of the LMC7111 allows this device to be placed close to the reference input. The low supply current (25μA typical) saves power.

For ADC reference inputs that require higher accuracy and lower offset voltage, see the LMC646x data sheet. The LMC6462 has performance similar to the LMC7111. The LMC6462 is available in two grades with reduced input voltage offset.