Datasheet

MCP4728
DS22187E-page 44 © 2010 Microchip Technology Inc.
FIGURE 5-14: Write Command: Write Gain Selection Bit (G
X
) to the DAC Input Registers.
Start 1st Byte (C2 C1 C0) 2nd Byte Stop
S 1100A2A1A00A110XG
X
AG
X
BG
X
CG
X
D A P
Note 1: GX A = Gain Selection for Channel A
G
X B = Gain Selection for Channel B
G
X C = Gain Selection for Channel C
G
X D = Gain Selection for Channel D
Ex: G
X A = 0: Gain of 1 for Channel A
= 1: Gain of 2 for Channel A
2: X is don’t care bit.
ACK (MCP4728)
R/W
Device Addressing
Write
Command
Command Type Bits: C2=1 C1=1 C0=0
Registers and V
OUT
are updated
at this falling edge of ACK pulse.
Note 1
for Gain Selection Bits