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Product Detailed Parameters
- Description：IC DGT POT 100KOHM 256TAP 16TQFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tray,Tray
- Taper：Linear
- Configuration：Potentiometer
- Number of Circuits：2
- Number of Taps：256
- Resistance (Ohms)：100k
- Interface：SPI
- Memory Type：Non-Volatile
- Voltage - Supply：2.7V ~ 5.25V
- Features：-
- Tolerance：±25%
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：16-TQFN (3x3)
- Package / Case：16-WFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ)：325
- Grade：-
- Qualification：-
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Overview
The MAX5489ETE#G16 is a dual, linear-taper digital potentiometer featuring a 3-wire SPI-compatible interface and nonvolatile EEPROM memory. It provides two independent resistor arrays with an end-to-end resistance of 100kΩ and 256 tap positions. The device operates on a single +2.7V to +5.25V supply, maintaining a low 35ppm/°C temperature coefficient. It ensures wiper position recall upon power-up or via command, supporting up to 200,000 store cycles and 50-year data retention.
Feature Summary
- Dual 100kΩ resistive arrays with 256 programmable tap positions
- Nonvolatile EEPROM retains wiper settings across power cycles
- SPI-compatible serial interface for direct wiper control
- Low standby current of 0.5µA typical
Applications
- LCD screen adjustment and bias control
- Audio volume control circuits
- Mechanical potentiometer replacement in embedded systems
- Low-drift programmable filters
- Programmable-gain amplifier configurations
Procurement Notes
Verify the specific ordering suffix '#G16' against official manufacturer documentation to confirm package type and RoHS compliance status. Standard datasheets list 'MAX5489ETE+' for the 16-pin TQFN-EP variant. Confirm availability through authorized distributors as standard lead times may vary.
Selection Notes
Select this component when a high-resistance (100kΩ) digital potentiometer is required. Ensure the system voltage falls within the 2.7V to 5.25V range. Verify that the SPI interface timing requirements align with the host microcontroller's capabilities. Consider the 16-pin TQFN package dimensions for PCB layout constraints.
Part Context
This part belongs to the MAX5487/MAX5488/MAX5489 family of dual digital potentiometers. The MAX5489 specifically offers 100kΩ end-to-end resistance, distinguishing it from the 10kΩ MAX5487 and 50kΩ MAX5488 variants. All members share identical pinouts, interfaces, and nonvolatile memory features.
Replacement Considerations
Direct functional substitutes include MAX5487ETE+ (10kΩ) and MAX5488ETE+ (50kΩ), provided the resistance value difference is acceptable for the circuit design. Other families like MAX5481 or MAX5494 offer similar functionality but may differ in interface protocols or resolution.
