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256抽头SOT-PoT、低漂移数字电位器,SOT23封装

256抽头数字电位器,提供节省空间的8引脚SOT23封装

产品详情

主要特征

应用/用途

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 1
Control Interface 3-Wire Serial
Taper Linear
Wiper Memory Volatile
REND-TO-END (kΩ) 50
Res. Tol. (%) 25
Temp. Coeff. (ppm/°C) (typ) 50
Wiper Resistance (Ω) (typ) 250
ICC @5V (µA) (max) 5
Package/Pins SOT23/8
Budgetary
Price (See Notes)
1.22
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参量

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 1
Control Interface 3-Wire Serial
Taper Linear
Wiper Memory Volatile
REND-TO-END (kΩ) 50
Res. Tol. (%) 25
Temp. Coeff. (ppm/°C) (typ) 50
Wiper Resistance (Ω) (typ) 250
ICC @5V (µA) (max) 5
Package/Pins SOT23/8
Budgetary
Price (See Notes)
1.22

主要特征

  • Miniature 8-Pin SOT23 (3mm x 3mm)
  • 256 Tap Positions
  • Ultra-Low 0.1µA Supply Current
  • Single-Supply Operation: +2.7V to +5.5V
  • Low Ratiometric Temperature Coefficient: 5ppm/°C
  • Power-On Reset: Wiper Goes to Midscale (Position 128)
  • Glitchless Switching Between the Resistor Taps
  • 3-Wire SPI™-Interface Compatible
  • 50kΩ/100kΩ Resistor Values

应用/用途

  • 可调节电压基准
  • 低偏差可编程增益放大器
  • 替代机械电位器

描述

The MAX5400/MAX5401 digital potentiometers offer 256-tap SOT-PoT™ digitally controlled variable resistors in tiny 8-pin SOT23 packages. Each device functions as a mechanical potentiometer, consisting of a fixed resistor string with a digitally controlled wiper contact. They operate from +2.7V to +5.5V single-supply voltages and use an ultra-low supply current of 0.1µA. These devices also provide glitchless switching between resistor taps, as well as a convenient power-on reset that sets the wiper to the midscale position at power-up. A low 5ppm/°C ratiometric temperature coefficient makes it ideal for applications requiring low drift.

The MAX5400/MAX5401 serve well in applications requiring digitally controlled resistors, including adjustable voltage references and programmable gain amplifiers (PGAs). A nominal end-to-end resistor temperature coefficient of 50ppm/°C allows these parts to be used as variable resistors in applications such as low-tempco adjustable gain and other circuit configurations.

Two resistance values are available: 50kΩ (MAX5400) and 100kΩ (MAX5401). Each device is guaranteed over the extended industrial temperature range (-40°C to +85°C).

简化框图

MAX5400、MAX5401:功能框图 MAX5400、MAX5401:功能框图 Zoom icon

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