CAT5172: Digital Potentiometer (POT), 256-Tap, SPI Compatible
Description: The CAT5172 is a 256-position linear taper digital...
The CAT5172 is a 256-position linear taper digital POT ideally suited for replacing mechanical potentiometers and variable resistors. Like mechanical potentiometers, the CAT5172 has a resistive element, which can span VCC to Ground or float anywhere between the power supply rails.
Wiper settings are controlled through an SPI-compatible digital interface. Upon power-up, the wiper assumes a mid-span position and may be repositioned anytime after the power is stable.
The CAT5172 operates from 2.7 V to 5.5 V, while consuming less than 2 µA. This low operating current, combined with a small package footprint, makes the CAT5172 ideal for battery powered portable appliance.
End-to-End Resistance: 50 kΩ, 100 kΩ
SPI Compatible Interface
Power-on Preset to Midscale
Single Supply 2.7 V to 5.5 V
Low Temperature Coefficient 100 ppm/°C
Low Power, IDD 2 µA max
Wide Operating Temperature -40°C to +85°C
Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
RF Amplifier Biasing
Gain Control and Offset Adjustment
Technical Documentation & Design Resources
Product Change Notification
Availability and Samples
Compliance: Pb-free Halide free
Description: Digital Potentiometer (POT), 256-Tap, SPI Compatible, 50 kΩ
Package Type: SOT-23-8
Package Case Outline: 527AK
Container Type: REEL
Container Qty: 3000
Market Leadtime (weeks):8 to 12
# of Pots:
# of Taps:
Resistance Typ (kΩ):
VH Max (V):
Wiper Position Memory:
VDD Max (V):