Microchip Technology MCP4331T-502E/ST

Description
The MCP433X/435X is a family of 7/8-bit quad SPI digital potentiometers with volatile memory. These devices feature a quad resistor network with potentiometer or rheostat configuration options. The resistor network resolution is either 7-bit (128 resistors, 129 taps) or 8-bit (256 resistors, 257 taps). The RAB resistances options are 5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
The MCP433X/435X offers zero scale to full scale wiper operation and low wiper resistance (75 Ω typical). It has a low tempco of 50 ppm typical (absolute, rheostat) and 15 ppm typical (ratiometric, potentiometer). The devices support split rail applications and have an internal weak pull-up on all digital inputs.

Features
Quad resistor network
Potentiometer or rheostat configuration options
7-bit or 8-bit resistor network resolution
RAB resistances options of 5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ
Zero scale to full scale wiper operation
Low wiper resistance (75 Ω typical)
Low tempco (50 ppm typical absolute, 15 ppm typical ratiometric)
SPI serial interface (10 MHz, Modes 0,0 and 1,1)
Resistor network terminal disconnect feature via Terminal Control (TCON) Register
Reset input pin
Brown-out reset protection (1.5V typical)
Serial interface inactive current (2.5 μA typical)
High-voltage tolerant digital inputs (up to 12.5V)
Wide operating voltage (2.7V to 5.5V)
Device characteristics specified at 1.8V to 5.5V
Wide bandwidth (-3 dB) operation (2 MHz typical for 5.0 kΩ device)
Extended temperature range (-40°C to 125°C)

Applications
Audio volume control
LED brightness control
Motor speed control
Sensor calibration
Programmable gain amplifiers
Voltage dividers
Current limiters