MCP47DA1 Datasheet, PDF (1/76 Pages) Microchip Technology – 6-Bit Windowed Volatile DAC with Command Code

MCP47DA1
6-Bit Windowed Volatile DAC with Command Code
Features:
• 6-Bit DAC:
- 65 Taps: 64 Resistors with Taps to Full Scale
and Zero Scale (Wiper Code 00h to 40h)
- 7-bit Serial Data (00h to 7Fh, 00h - 20h =
Zero Scale and 60h-7Fh = Full Scale)
• V_REF Pull-down Resistance: 30 k (typical)
• V_OUT Voltage Range:
- 1/3 * V_REF to 2/3 * V_REF
• I²C^™ Protocol:
- Supports SMBus 2.0 Write Byte/Word
Protocol Formats
- Supports SMBus 2.0 Read Byte/Word
Protocol Formats
- Slave Addresses: 5Ch and 7Ch
• Brown-out Reset Protection (1.5V, typical)
• Power-on Default Wiper Setting (Mid-scale)
• Low-Power Operation: 100 µA Static Current (typ.)
• Wide Operating Voltage Range:
- 2.7V to 5.5V – Device Characteristics
Specified
- 1.8V to 2.7V – Device Operation
• Low Tempco: 15 ppm (typical)
• 100 kHz (typical) Bandwidth (-3 dB) Operation
• Extended Temperature Range (-40°C to +125°C)
• Small Packages, SOT-23-6, SC70-6
• Lead Free (Pb-free) Package
Applications:
• PC Servers (I²C Protocol with Command Code)
• Set Point or Offset Trimming
• Cost-sensitive Mechanical Trim Pot Replacement
Device Features
Package Types
MCP47DA1
V_DD 1
V_SS 2
AW
B
6 ^VREF
5 VOUT
SCL 3
4 SDA
SOT-23-6, SC70-6
Device Block Diagram
10 K
V_DD
Power-up
A
and
Brown-out
V_SS
Control
SDA
SCL
2-Wire
Interface
and
Control
Logic
B
10 K
V_REF
V_OUT
Description:
The MCP47DA1 devices are volatile, 6-Bit digital
potentiometers with a buffered output. The wiper
setting is controlled through an I²C serial interface. The
MCP47DA1. I²C slave addresses of “010 1110” and
“011 1110” are supported. The MCP47DA1 has a
windowed output (1/3 to 2/3 of V_REF).
Device
Package(s)
MCP47DA1 I²C™ 65 64 30.0 00h - 7Fh 40h 5Ch, 7Ch 1.8V to 5.5V
Note 1: Analog characteristics only tested from 2.7V to 5.5V.
1/3 V_REF to
2/3 V_REF
SOT-23-6,
SC70-6
 2012-2013 Microchip Technology Inc.
DS25118D-page 1