MCP4706/4716/4726
DS22272C-page 2 © 2011-2012 Microchip Technology Inc.
Block Diagram
V
DD
V
SS
SCL
SDA
V
OUT
DAC
Register
EEPROM
PD1:PD0
Op
Amp
I
2
C™ Interface Logic
V
RL
1kΩ
125 kΩ
640 kΩ
V
DD
Buffer
Gain (1x or 2x)
(G = 0 or 1)
Resistor Ladder
Reference
V
REF1
:V
REF0
Selection
Control
Logic
V
REF
V
W
PD1:PD0
