Specification	CAT5137SDI-00GT3

Configuration	Rheostat
Interface	I2C
Memory Type	Volatile
Mounting Type	Surface Mount
Number of Circuits	1
Number of Taps	128
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	6-TSSOP, SC-88, SOT-363
Resistance - Wiper (Ohms) (Typ)	85 Ohms
Resistance (Ohms)	100 kOhms
Supplier Device Package	SC-70-6
Taper	Linear
Temperature Coefficient (Typ)	300 ppm/°C
Tolerance	20 %
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.7 V

CAT5137 Series

Digital Potentiometer (POT), 128-Tap, with I2C Interface

Part	Number of Circuits	Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Temperature Coefficient (Typ)	Resistance (Ohms)	Number of Taps	Tolerance	Resistance - Wiper (Ohms) (Typ)	Taper	Interface	Mounting Type	Package / Case	Memory Type	Voltage - Supply [Min]	Voltage - Supply [Max]
ON Semiconductor CAT5137SDI-00GT3	1	Rheostat	85 °C	-40 °C	SC-70-6	300 ppm/°C	100 kOhms	128	20 %	85 Ohms	Linear	I2C	Surface Mount	6-TSSOP SC-88 SOT-363	Volatile	2.7 V	5.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

CAT5137 Series

CAT5136, CAT5137, and CAT5138 are a family of digital POTs operating like mechanical potentiometers in various configurations. The tap points between the 127 equal resistive elements are connected to the wiper output via CMOS switches. The switches are controlled by a 7-bit Wiper Control Register (WCR) via the I2C serial bus. CAT5136 is configured as a variable resistor. CAT5137 and CAT5138 are resistive voltage dividers, with one terminal of the potentiometer connected to GND. CAT5137 and CAT5138 have different device IDs, which makes it possible to use both on the same I2C bus. Upon power-up, the WCR is set to mid-scale (1000000).