MCP4728 Microchip Technology Inc., MCP4728 Datasheet - Page 27

• Manufacturer Part Number: MCP4728
• Description: 12-bit, Quad Digital-to-analog Converter With Eeprom Memory
• Manufacturer: Microchip Technology Inc.

TABLE 4-5:
4.9
Table 4-6
code vs. analog output. The MSB of the input data is
always transmitted first and the format is unipolar
binary.
© 2009 Microchip Technology Inc.
Note 1:
LDAC Pin UDAC Bit
DAC Input Code
111111111111
111111111110
000000000010
000000000001
000000000000
0
0
1
1
Analog Output Vs. DAC Input
Code
shows an example of the DAC input data
(a) LSB with gain of 1 = 0.5 mV, and (b) LSB with gain of 2 = 1 mV.
0
1
0
1
LDAC AND UDAC
CONDITIONS VS. OUTPUT
UPDATE
Selection
Update all DAC channel
outputs.
Update all DAC channel
outputs.
Update a selected DAC
channel output.
No update
Gain
x1
x2
x1
x2
x1
x2
x1
x2
x1
x2
DAC Output (V
V
REF
= Internal (2.048 V)
Nominal Output Voltage (V)
OUT
2*V
2*V
V
V
(See Note 1)
REF
REF
)
REF
REF
2 LSB
2 LSB
1 LSB
1 LSB
- 1 LSB
- 2 LSB
0
0
- 1 LSB
- 2 LSB
TABLE 4-6:
Selection
Ignored
Gain
DAC INPUT CODE VS.
ANALOG OUTPUT (V
Nominal Output Voltage (V)
V
REF
= V
MCP4728
V
V
DD
DD
DD
2 LSB
1 LSB
- 1 LSB
- 2 LSB
DS22187A-page 27
0
OUT
)