Maxim MAX5481EUD+

线性1102410kSPI，上/下（U/D，INC，CS）2.7V ~ 5.25V，±2.5V ~ 5.25V-40°C ~ 85°C

Overview

The MAX5481–MAX5484 10-bit (1024-tap) nonvolatile, linear-taper, programmable voltage-dividers and variable resistors perform the function of a mechanical potentiometer, but replace the mechanics with a pin-configurable 3-wire serial SPI-compatible interface or up/down digital interface. The MAX5481/MAX5482 are 3-terminal voltage-dividers and the MAX5483/MAX5484 are 2-terminal variable resistors. The MAX5481–MAX5484 feature an internal, nonvolatile, electrically erasable programmable read-only memory (EEPROM) that stores the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 7MHz. A pin-selectable up/down digital interface is also available. The MAX5481–MAX5484 are ideal for applications requiring digitally controlled potentiometers. Two end-to-end resistance values are available (10kΩ and 50kΩ) in a voltage-divider or a variable-resistor configuration (see the Selector Guide in the full data sheet). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric, making these devices ideal for applications requiring low-temperature-coefficient voltage-dividers, such as low-drift, programmable gain-amplifiers. The MAX5481–MAX5484 operate with either a +2.7V to +5.25V single power supply or ±2.5V dual power supplies. These devices consume 400μA (max) of supply current when writing data to the nonvolatile memory and 1.0μA (max) of standby supply current. The MAX5481–MAX5484 are available in a space-saving (3mm x 3mm), 16-pin TQFN, or a 14-pin TSSOP package and are specified over the extended (-40°C to +85°C) temperature range.

Features

Tube Package
Available in 14-TSSOP (0.173, 4.40mm Width) package
1 Circuits
Mounting Type: Surface Mount
Operate temperature at the range of -40°C~85°C
14 pins

50 Resistance - Wiper (Ohms) (Typ)

Applications

There are a lot of Maxim Integrated
MAX5481EUD+ Digital Potentiometers applications.

• Refrigerator
• Programmable computer
• Power supply
• Power meter
• Automatic detection of equipment
• Optic fiber network
• Adjusting the LCD Display
• Voltage control
• Replaces mechanical potentiometers
• Matching Linear Impedance