AS1506-BTDT-100

Digital Potentiometers Overview

The AS1506-BTDT-100 is a linear, 256-tap digital potentiometer designed to replace discrete mechanical components. It features an end-to-end resistance of 100kΩ and operates on a single supply voltage ranging from +2.7V to +5.5V. The device utilizes a 3-wire SPI-compatible serial interface for communication at data rates up to 5MHz. An internal EEPROM retains the wiper position across power cycles, ensuring initialization upon power-up. The component is housed in an 8-pin TDFN 3x3mm package and supports operation within a temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• 256 tap positions with ±0.5LSB DNL/INL in voltage divider mode
• High endurance EEPROM rated for 10M write cycles and 150 years data retention
• Low-power standby mode consuming 100nA typical current
• Integrated power-on reset circuitry loads wiper position from EEPROM

Digital Potentiometers Applications

• Mechanical potentiometer replacement
• Low-drift programmable gain amplifiers
• LCD contrast control
• Low-drift programmable filters

Digital Potentiometers Procurement Notes

Verify the specific ordering code suffix against the manufacturer's official documentation to confirm the exact end-to-end resistance value. Confirm that the required delivery form matches the tape and reel specification provided in the datasheet. Ensure the design accommodates the 8-pin TDFN 3x3mm package dimensions and thermal requirements during procurement planning.

Digital Potentiometers Selection Notes

Select this variant when a 100kΩ end-to-end resistance is required. Compare the 90ppm/ºC temperature coefficient against application drift requirements. Verify that the system can support the 3-wire SPI interface timing constraints, specifically the 5MHz SCLK frequency limit. Consider the 20ms busy time for non-volatile register writes when designing power-down sequences.

Digital Potentiometers Part Context

This component belongs to the AS1506 family of 256-tap digital potentiometers. Variants within the series are differentiated primarily by their end-to-end resistance values, including 10kΩ and 50kΩ options. All variants share identical pinouts, interface protocols, and package styles, allowing for functional substitution if resistance values align with circuit requirements.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.