MCP4728EV Microchip Technology, MCP4728EV Datasheet - Page 53

• Manufacturer Part Number: MCP4728EV
• Description: BOARD EVAL 12BIT 4CH DAC MCP4728
• Manufacturer: Microchip Technology
• Type: D/Ar

Specifications of MCP4728EV

• Number Of Dac's: 4
• Number Of Bits: 12
• Outputs And Type: 1, Single Ended
• Data Interface: I²C
• Settling Time: 6µs
• Dac Type: Voltage
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: MCP4728
• Product: Data Conversion Development Tools
• Resolution: 12 bit
• Interface Type: I2C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP4728
• Kit Application Type: Data Converter
• Application Sub Type: DAC
• Kit Contents: Board
• For Use With/related Products: MCP4728
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

7.6
The MCP4728 device is a rail-to-rail output DAC
designed to operate with a V
Its output amplifier of each channel is robust enough to
drive common, small-signal loads directly, thus
eliminating the cost and size of external buffers for
most applications. Since each channel has its own
configuration bits for selecting the voltage reference,
gain, power-down, etc., the MCP4728 device offers
great simplicity and flexibility to use for various DAC
applications.
© 2009 Microchip Technology Inc.
Application Examples
DD
range of 2.7V to 5.5V.
7.6.1
A common application for the MCP4728 device is a
digitally-controlled set point or a calibration of variable
parameters such as sensor offset or bias point.
Figure 7-3
Let us consider that the application requires different
trip voltages (Trip 1 - Trip 4). Assuming the DAC output
voltage requirements are given as shown in
examples of sending the Sequential Write and Fast
Write commands are shown in
Figure
TABLE 7-1:
DAC Channel
V
V
V
V
OUT
OUT
OUT
OUT
7-5.
shows an example of the set point settings.
A
B
C
D
DC SET POINT OR CALIBRATION
VOLTAGE SETTINGS
EXAMPLE: SETTING V
EACH CHANNEL
Reference
Voltage
Internal
Internal
V
V
DD
DD
MCP4728
DS22187A-page 53
Figure 7-4
DAC Output
V
DD
2.048V
4.096V
(V
V
DD
- 1 LSB
Table
OUT
OUT
/2
)
OF
7-1,
and