Microchip Technology ADM00317 Data Sheet

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© 2011-2012 Microchip Technology Inc.
DS22272C-page 1
MCP4706/4716/4726
Features:
• Output Voltage Resolutions:
- 12-bit: MCP4726
- 10-bit: MCP4716
- 8-bit: MCP4706
• Rail-to-Rail Output
• Fast Settling Time of 6 µs (typical)
• DAC Voltage Reference Options:
- V
DD
- V
REF
 Pin
• Output Gain Options:
- Unity (1x)
- 2x, only when V
REF
 pin is used as voltage 
source
• Nonvolatile Memory (EEPROM):
- Auto Recall of Saved DAC register setting
- Auto Recall of Saved Device Configuration 
(Voltage Reference, Gain, Power-Down)
• Power-Down modes:
- Disconnects output buffer
- Selection of V
OUT
 pull-down resistors 
(640 k
Ω, 125 kΩ, or 1 kΩ)
• Low-Power Consumption:
- Normal Operation: 210 µA typical
- Power-Down Operation: 60 nA typical 
(PD1:PD0 = 11)
• Single-Supply Operation: 2.7V to 5.5V
• I
2
C™ Interface:
- Eight Available Addresses
- Standard (100 kbps), Fast (400 kbps), and 
High-Speed (3.4 Mbps) modes
• Small 6-lead SOT-23 and DFN (2x2) Packages
• Extended Temperature Range: -40°C to +125°C
Applications:
• Set Point or Offset Trimming
• Sensor Calibration
• Low-Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems
• Motor Control
Package Types
   
Description:
The MCP4706/4716/4726 are single channel 8-bit,
10-bit, and 12-bit buffered voltage output Digital-to-
Analog Converters (DAC) with nonvolatile memory and
an I
2
C serial interface. This family will also be referred
to as MCP47X6.
The V
REF
 pin or the device V
DD
 can be selected as the
DAC’s reference voltage. When V
DD
 is selected, V
DD
 is
connected internally to the DAC reference circuit.
When the V
REF
 pin is used, the user can select the
output buffer’s gain to 1 or 2. When the gain is 2, the
V
REF
 pin voltage should be limited to a maximum of
V
DD
/2.
The DAC register value and Configuration bits can be
programmed to nonvolatile memory (EEPROM). The
nonvolatile memory holds the DAC register and
Configuration bit values when the device is powered
off. A device Reset (such as a Power-on Reset) latches
these stored values into the volatile memory. 
Power-Down modes enable system current reduction
when the DAC output voltage is not required. The V
OUT
pin can be configured to present a low, medium, or high
resistance load.
These devices have a two-wire I
2
C™ compatible serial
interface for standard (100 kHz), fast (400 kHz), or
High-Speed (3.4 MHz) mode.
These devices are available in small 6-pin SOT-23 and
DFN 2x2 mm packages. 
1
2
3
4
5
6
  V
OUT
SCL
SDA
V
SS
SOT-23-6
V
DD
MCP4706/16/26
2x2 DFN-6*
SCL
SDA
V
SS
1
2
3
6
5
4
V
OUT
EP
7
V
DD
* Includes Exposed Thermal Pad (EP); see 
V
REF
  V
REF
8-/10-/12-Bit Voltage Output Digital-to-Analog Converter 
with EEPROM and I
2
C™ Interface