10k µPoT 256抽头、低漂移数字电位器
说明The MAX5402 µPoT digital potentiometer is a 256-tap variable resistor with 10kΩ total resistance in a tiny 8-pin µMAX® package. This device functions as a mechanical potentiometer, consisting of a fixed resistor string with a digitally controlled wiper contact. It operates from +2.7V to +5.5V single-supply voltages and uses an ultra-low 0.1µA supply current. This device also provides glitchless switching between resistor taps, as well as a convenient power-on reset (POR) 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 MAX5402 serves 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 35ppm/°C makes this part suitable for use as a variable resistor in applications such as low-tempco adjustable gain and other circuit configurations. This device is guaranteed over the extended industrial temperature range (-40°C to +85°C).
- Small Footprint, 8-Pin µMAX Package
- Ultra-Low 100nA Supply Current
- +2.7V to +5.5V Single-Supply Operation
- 256 Tap Positions
- Low Ratiometric Temperature Coefficient 5ppm/°C
- Low End-to-End Resistor Temperature Coefficient 35ppm/°C
- Power-On Reset: Wiper Goes to Midscale (Position 128)
- Glitchless Switching Between the Resistor Taps
- 3-Wire SPI-Interface Compatible
- 10kΩ Resistor Value
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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|设计指南||4993||Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface|
|应用笔记||4936||Calibrating a Power Supply with a Digital Potentiometer|
|应用笔记||4546||High-Voltage, Programmable-Gain Current Monitor|