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Product Detailed Parameters
- Description：MAX5432 32-TAP, NONVOLATILE, I2C
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Taper：Linear
- Configuration：Potentiometer
- Number of Circuits：1
- Number of Taps：32
- Resistance (Ohms)：62.5k
- Interface：I2C
- Memory Type：Non-Volatile
- Voltage - Supply：2.7V ~ 5.25V
- Features：Selectable Address
- Tolerance：-
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：8-TDFN-EP (3x3)
- Package / Case：8-WDFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ)：610
- Grade：-
- Qualification：-
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Overview
The MAX5432META+ is a single-channel, nonvolatile linear-taper digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features 32 tap positions and an end-to-end resistance of 100 kOhms with a tolerance of 25%. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V and draws a typical static supply current of 2 uA. It utilizes a 2-wire I2C-compatible serial interface for communication. The component is housed in an 8-pin TDFN package with an exposed pad (TDFN-8 EP) and supports surface-mount installation. It functions within a temperature range of -40°C to +85°C.
Feature Summary
- Nonvolatile memory retains wiper position after power loss
- I2C-compatible 2-wire serial interface
- 100 kOhm linear taper resistance with 32 taps
- Low power consumption with 2 uA typical static current
Applications
- Mechanical potentiometer replacement
- Low-drift programmable-gain amplifiers
- Volume control circuits
- Liquid-crystal display (LCD) screen adjustment
Procurement Notes
Verify the specific suffix 'META+' against official Analog Devices documentation to confirm the exact package type and temperature grade. Ensure compatibility with the target PCB footprint for the TDFN-8 EP package. Confirm RoHS compliance status through the manufacturer's latest certification documents before procurement.
Selection Notes
Select this component when a nonvolatile digital potentiometer with I2C interface is required. The 100 kOhm resistance value suits applications needing higher impedance compared to the 50 kOhm variant. Verify that the operating voltage range of 2.7 V to 5.25 V aligns with the system power supply. Consider the TDFN-8 EP package size for space-constrained designs.
Part Context
The MAX5432META+ belongs to the MAX543x series of nonvolatile digital potentiometers. This family replaces mechanical potentiometers with solid-state alternatives controlled via serial interfaces. The MAX5432 specifically offers 100 kOhm resistance, while other variants like the MAX5434 offer different resistance values or pinouts within the same functional family.
FAQ
What is the resolution of the MAX5432META+?
The device provides 32 discrete tap positions, which corresponds to approximately 5 bits of resolution.
Does the MAX5432META+ retain its setting after power cycle?
Yes, it includes nonvolatile memory that recalls the wiper position upon power-up.
What is the maximum serial clock speed?
The device supports a fast 400kbps I2C-compatible serial interface.
