AD7877

Rev. A | Page 8 of 44

Pin No.

Mnemonic

Description

29

ARNG

When the DAC is in current output mode, a resistor from ARNG to GND sets the output range.

30

AOUT

Analog Output Voltage or Current from DAC.

31

Reference output for the AD7877. The internal 2.5 V reference is available on this pin for use external to the

device. The reference output must be buffered before it is applied elsewhere in a system. A capacitor of 100nF

Alternatively, an external reference can be applied to this input. The voltage range for the external reference is