Microchip Technology MCP40D18T-503E/LT

Description
The MCP40D17/18/19 are 7-bit single I²C™ (with command code) digital potentiometers with volatile memory in SC70 packages. They offer potentiometer or rheostat configuration options with 127 resistors (128 steps) and zero scale to full scale wiper operation. The devices have RAB resistances of 5 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ and a low wiper resistance of 100Ω (typical). They feature low tempco (absolute: 50 ppm typical, ratiometric: 15 ppm typical) and support SMBus 2.0 write byte/word and read byte/word protocol formats. The devices have standard I²C device addresses of "0101110" and "0111110" (MCP40D18 only). They offer brown-out reset protection (1.5V typical), power-on default wiper setting (mid-scale), and low-power operation (2.5 μA static current typical). The devices operate over a wide voltage range (2.7V to 5.5V) and have a wide bandwidth (-3 dB) operation (2 MHz typical for 5.0 kΩ device). They are available in extended temperature range (-40°C to 125°C) and very small SC70 packages.

Features
Potentiometer or rheostat configuration options
7-bit: Resistor Network Resolution
127 Resistors (128 Steps)
Zero Scale to Full Scale Wiper operation
RAB Resistances: 5 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ
Low Wiper Resistance: 100Ω (typical)
Low Tempco:
Absolute (Rheostat): 50 ppm typical (0°C to 70°C)
Ratiometric (Potentiometer): 15 ppm typical
I²C Protocol
Supports SMBus 2.0 Write Byte/Word Protocol Formats
Supports SMBus 2.0 Read Byte/Word Protocol Formats
Standard I²C Device Addresses:
All devices offered with address "0101110"
MCP40D18 also offered with address "0111110"
Brown-out reset protection (1.5V typical)
Power-on Default Wiper Setting (Mid-scale)
Low-Power Operation:
2.5 μA Static Current (typical)
Wide Operating Voltage Range:
2.7V to 5.5V - Device Characteristics Specified
1.8V to 5.5V - Device Operation
Wide Bandwidth (-3 dB) Operation:
2 MHz (typical) for 5.0 kΩ device
Extended temperature range (-40°C to 125°C)
Very small package (SC70)
Lead free (Pb-free) package

Applications
PC Servers (I²C Protocol with Command Code)
Amplifier Gain Control and Offset Adjustment
Sensor Calibration (Pressure, Temperature, Position, Optical and Chemical)
Set point or offset trimming
Cost-sensitive mechanical trim pot replacement
RF Amplifier Biasing
LCD Brightness and Contrast Adjustment