TPL0501-100DCNR

Digital Potentiometers Overview

The TPL0501-100DCNR is a single-channel digital potentiometer manufactured by Texas Instruments, featuring 256 taps for precise resistance adjustment. It utilizes an SPI-compatible serial interface for control and offers a 100kΩ end-to-end resistance with ±20% tolerance. The device operates on a single supply voltage ranging from 2.7V to 5.5V and maintains a low temperature coefficient of 35ppm/°C. Designed for surface-mount applications, it is housed in an 8-pin SOT-23 package and supports a wide operating temperature range from –40°C to +125°C.

Digital Potentiometers Feature Summary

• 256-tap resolution for fine resistance control
• SPI-compatible serial interface for digital programming
• Low temperature coefficient of 35ppm/°C
• Wide supply voltage range: 2.7V to 5.5V

Digital Potentiometers Applications

• Pulsed oximeters
• Water meters
• Cameras
• Medical sensor patches
• Building security gateways

Digital Potentiometers Procurement Notes

Verify the specific suffix DCNR confirms the SOT-23-8 package and tape-and-reel packaging format. Confirm the 100kΩ resistance value matches design requirements. Check RoHS compliance status and moisture sensitivity level (MSL) for soldering process compatibility. Ensure the ordering part number aligns with the required quantity increments specified by the distributor.

Digital Potentiometers Selection Notes

Select this component when a single-channel programmable resistor with SPI control is required. The 100kΩ value suits moderate impedance circuits, while the 256 taps provide sufficient granularity for calibration tasks. The SOT-23-8 package is suitable for space-constrained designs. Consider the ±20% tolerance and 35ppm/°C tempco for precision applications requiring external trimming or compensation.

Digital Potentiometers Part Context

This part belongs to the TPL0501 family of digital potentiometers. Variants within the family differ primarily in resistance values (e.g., 10kΩ, 50kΩ) and package types (e.g., UQFN). The TPL0501-100DCNR specifically denotes the 100kΩ version in the SOT-23-8 reel package. Other variants like TPL0501-100RSER offer the same electrical specifications but in a different footprint.

Digital Potentiometers Replacement Considerations

Direct pin-compatible alternatives include other TPL0501 variants with different resistance values if the circuit allows. For different packages, the TPL0501-100RSER provides identical electrical performance in an 8-UQFN package. Cross-reference with similar SPI digital pots from other manufacturers only if interface timing and voltage levels are compatible.