MCP40D18T-502E/LT

$0.58

Description：IC DGTL POT 5KOHM 128TAP SC70-6
Series：-

SKU:c47e2c72c9e2 Category: Digital Potentiometers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC DGTL POT 5KOHM 128TAP SC70-6
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)
Taper：Linear
Configuration：Rheostat
Number of Circuits：1
Number of Taps：128
Resistance (Ohms)：5k
Interface：I2C
Memory Type：Volatile
Voltage - Supply：1.8V ~ 5.5V
Features：-
Tolerance：±20%
Temperature Coefficient (Typ)：150ppm/°C
Mounting Type：Surface Mount
Supplier Device Package：SC-70-6
Package / Case：6-TSSOP, SC-88, SOT-363
Operating Temperature：-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ)：155
Grade：-
Qualification：-

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MCP40D18T-502E/LT

Overview

The MCP40D18T-502E/LT is a single-channel digital potentiometer IC manufactured by Microchip Technology. It features a 7-bit resistor network providing 128 tap positions and operates in a potentiometer configuration. The device utilizes an I2C serial interface with command code support and volatile RAM memory for wiper settings. Key electrical parameters include a nominal resistance (R_AB) of 5 kΩ, a typical wiper resistance of 100 Ω, and a supply voltage range of 1.8 V to 5.5 V. It supports SMBus 2.0 protocols and includes power-on reset protection.

Feature Summary

7-bit resolution with 128 discrete tap positions
I2C serial interface supporting SMBus 2.0 Read/Write Byte/Word formats
Potentiometer configuration with volatile RAM storage
Wide operating voltage range from 1.8 V to 5.5 V

Applications

Amplifier gain control and offset adjustment
Sensor calibration for pressure, temperature, position, optical, and chemical sensors
Set point or offset trimming
RF amplifier biasing
LCD brightness and contrast adjustment

Procurement Notes

Verify the specific suffix 'LTY' against official documentation, as standard datasheets list 'LT'. Confirm package type SC70-6 compatibility and ensure I2C address '0111110' matches system requirements. Check RoHS compliance status and lead-free certification before procurement.

Selection Notes

Select this component for applications requiring a single-channel digital potentiometer with I2C control. Ensure the 5 kΩ resistance value fits the circuit design. Verify that volatile memory meets system needs, as settings are lost on power cycle. Confirm the SC70-6 package size constraints.

Part Context

This part belongs to the MCP40D17/18/19 family of 7-bit digital potentiometers. The MCP40D18 variant specifically offers a potentiometer configuration, whereas the MCP40D17 and MCP40D19 offer rheostat configurations. All share similar electrical characteristics and I2C interfaces.