MAX5453EUD+T

Overview

The MAX5453EUD+T is a dual digital potentiometer IC from the MAX5450–MAX5455 family, manufactured by Analog Devices Inc./Maxim Integrated. It features two independent 3-terminal potentiometers with 256 tap positions and a nominal resistance of 50kΩ. The device operates on a single supply voltage ranging from +2.7V to +5.5V with an ultra-low supply current of 0.1µA. It utilizes an up/down interface for glitchless switching between resistor taps and includes a power-on reset circuit that sets the wiper to midscale (position 127) at startup. The component is housed in a 14-pin TSSOP package and is guaranteed to operate over the extended industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual 3-terminal potentiometers with 256 tap positions
• Up/Down interface for glitchless switching
• Ultra-low 0.1µA supply current
• Power-on reset sets wiper to midscale position
• Low 35ppm/°C end-to-end temperature coefficient

Applications

• Mechanical potentiometer replacement
• Low-drift programmable-gain amplifiers (PGA)
• Volume control
• LCD screen adjustment
• Adjustable voltage references

Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing this specific part number. Confirm the manufacturer is Analog Devices Inc. or Maxim Integrated. Ensure the component meets RoHS standards as indicated by the '+' suffix. Check for availability constraints as distribution status may vary by region.

Selection Notes

Select the MAX5453EUD+T when a dual 50kΩ digital potentiometer with independent controls is required. This model is suitable for applications needing low-temperature drift and glitchless operation. Compare against MAX5451EUD+T for 10kΩ or MAX5455EUD+T for 100kΩ if different resistance values are needed. Ensure the system supports the up/down digital interface logic.

Part Context

The MAX5453EUD+T belongs to the MAX5450–MAX5455 family of dual digital potentiometers. While other family members like MAX5451 and MAX5455 offer 10kΩ and 100kΩ options respectively, the MAX5453 specifically provides 50kΩ resistance. Unlike the MAX5450/MAX5452/MAX5454 which function as variable resistors, the MAX5453 retains three terminals per potentiometer for voltage divider configurations.

Replacement Considerations

Direct functional substitutes within the same package include MAX5451EUD+T (10kΩ) and MAX5455EUD+T (100kΩ), provided the resistance value difference is acceptable for the circuit design. Other models in the series share identical pinouts and interface logic.