MCP4725 Microchip Technology, MCP4725 Datasheet
MCP4725
Manufacturer Part Number
MCP4725
Description
12-Bit Digital-to-Analog Converter
Manufacturer
Microchip Technology
Datasheet
1.MCP4725.pdf
(42 pages)
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Features
• 12-Bit Resolution
• On-Board Non-Volatile Memory (EEPROM)
• ±0.2 LSB DNL (typical)
• External A0 Address Pin
• Normal or Power-Down Mode
• Fast Settling Time of 6 µs (typical)
• External Voltage Reference (V
• Rail-to-Rail Output
• Low Power Consumption
• Single-Supply Operation: 2.7V to 5.5V
• I
• Small 6-lead SOT-23 Package
• Extended Temperature Range: -40°C to +125°C
Applications
• Set Point or Offset Trimming
• Sensor Calibration
• Closed-Loop Servo Control
• Low Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems
Block Diagram
© 2007 Microchip Technology Inc.
12-Bit Digital-to-Analog Converter with EEPROM Memory
V
V
- Eight Available Addresses
- Standard (100 kbps), Fast (400 kbps), and
DD
SS
2
C
High-Speed (3.4 Mbps) Modes
TM
Interface:
Power-on
EEPROM
Charge
Reset
Pump
A0
String DAC
Resistive
V
Amp
I
2
Op
OUT
C Interface Logic
SCL
DAC Register
DD
Register
)
Input
SDA
in SOT-23-6
DESCRIPTION
The MCP4725 is a low-power, high accuracy, single
channel, 12-bit buffered voltage output Digital-to-Ana-
log Convertor (DAC) with non-volatile memory
(EEPROM). Its on-board precision output amplifier
allows it to achieve rail-to-rail analog output swing.
The DAC input and configuration data can be
programmed to the non-volatile memory (EEPROM) by
the user using I
memory feature enables the DAC device to hold the
DAC input code during power-off time, and the DAC
output is available immediately after power-up. This
feature is very useful when the DAC device is used as
a supporting device for other devices in the network.
The device includes a Power-On-Reset (POR) circuit to
ensure reliable power-up and an on-board charge
pump for the EEPROM programming voltage. The
DAC reference is driven from V
power-down mode, the output amplifier can be config-
ured to present a low, medium, or high resistance out-
put load.
The MCP4725 has an external A0 address pin. This A0
pin can be tied to V
board.
The MCP4725 has a two-wire I
interface for standard (100 kHz), fast (400 kHz), or high
speed (3.4 MHz) mode.
The MCP4725 is an ideal DAC device where design
simplicity and small footprint is desired, and for applica-
tions requiring the DAC device settings to be saved
during power-off time.
The device is available in a small 6-pin SOT-23
package.
Package Type
SOT-23-6
V
V
V
OUT
SS
DD
MCP4725
2
C interface command. The non-volatile
1
2
3
DD
or V
SS
of the user’s application
2
C™ compatible serial
6
5
4
DS22039C-page 1
DD
A0
SCL
SDA
directly. In
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