CAT5121 Series

Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface

Catalog

Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface

Part	Supplier Device Package	Mounting Type	Number of Circuits	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Taps	Resistance (Ohms)	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Configuration	Temperature Coefficient (Typ)	Memory Type	Taper	Interface	Resistance - Wiper (Ohms) (Typ)	Tolerance	Resistance (Ohms)
ON Semiconductor CAT5121TBI-10GT3	SOT-23-6	Surface Mount	1	2.7 V	5.5 V	16	10k	SOT-23-6	85 °C	-40 °C	Rheostat	200 ppm/°C	Volatile
ON Semiconductor CAT5121TBI-10GT3	SOT-23-6	Surface Mount	1	2.7 V	5.5 V	16	10k	SOT-23-6	85 °C	-40 °C	Rheostat	200 ppm/°C	Volatile
ON Semiconductor CAT5121SDI-10GT3	SC-70-6	Surface Mount	1	2.7 V	5.5 V	16	10k	6-TSSOP SC-88 SOT-363	85 °C	-40 °C	Rheostat	200 ppm/°C	Volatile	Linear	Up/Down	200 Ohms	25 %
ON Semiconductor CAT5121SDI-50GT3	SC-70-6	Surface Mount	1	2.7 V	5.5 V	16		6-TSSOP SC-88 SOT-363	85 °C	-40 °C	Rheostat	200 ppm/°C	Volatile	Linear	Up/Down	200 Ohms	25 %	50 kOhms
ON Semiconductor CAT5121TBI-50GT3	SOT-23-6	Surface Mount	1	2.7 V	5.5 V	16		SOT-23-6	85 °C	-40 °C	Rheostat	200 ppm/°C	Volatile	Linear	Up/Down	200 Ohms	25 %	50 kOhms

Catalog

Digital Potentiometer (POT), 16-Tap, with 2-Wire Interface

Key Features

• 0.3 µA Ultra-low supply current

• Single-supply operation: 2.7 V to 5.5 V

• Glitchless switching between resistor taps

• Power-on reset to midscale

• 2-Wire up/down serial interface

• Resistance values: 10 kΩ, 50 kΩ and 100 kΩ

Description

CAT5121 linear-taper digital POT performs the same function as a mechanical potentiometer or a variable resistor. This device consists of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface.The CAT5121 is configured as a variable resistor. SeePin Configurationsfor part functionality.Three resistance values are available: 10 kΩ , 50 kΩ and 100 kΩ.