admin 发表于 2010-4-17 17:42:47

MCP4021/2/3/4 DataSheet

http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifLow-Cost NV Digital POT w/WiperLock Technology


The MCP402X devices are non-volatile, 6-bit (64 wiper steps) digital potentiometers that are programmed/reprogrammed through a simple up/down serial interface. The MCP402X devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count. The MCP4021 device offers a voltage divider (potentiometer), with all terminals available on pins. The MCP4022 is a true rheostat, with both nodes of the resistor available on pins. The MCP4023 device offers a voltage divider (potentiometer), with one terminal connected to ground. The MCP4024 device is a rheostat mode device, with one terminal of the resistor connected to ground. The devices offer WiperLock™ Technology which allows the user unlimited reprogramming and locking of the wiper setting. This is useful for equipment that requires factory trimming or recalibration. The MCP402x family of devices are available with resistor values of 2.5KΩ, 5KΩ, 10KΩ and 50KΩ. These devices operate from a single 2.7-5.5V supply and draw less than 1 µA while operating in the static state.
Parameter NameValue
Temp. Range (°C)-40 to +125
Volatile / Non VolatileNon Volatile(EEPROM)
Number of Taps64
Resistance (ohms) K10,2.1,5,50
# per Package1
INL (Max)0.5
DNL (Max)0.5
InterfaceUp / Down Protocol

   Features
Nonvolatile Digital Potentiometer in SOT-23 packages
64 Taps: 63 Resistors with Taps to VSS and VDD
Simple Up/Down (U/D) Protocol
Automatic Recall of Potentiometer Wiper Settings
Resistance Values: 2kΩ, 5kΩ, 10kΩ, 50kΩ
Low Tempco:
- Absolute (Rheostat): <100 ppm (typ.)
- Ratiometric (Potentiometer): <10 ppm (typ.)
Low Wiper Resistance: 100Ω (typ.)
WiperLock™ Technology to Secure the EEPROM
Low-Power Operation: 1μA Max Static Current
Wide Operating Voltage: 2.7V to 5.5V
Extended Temperature Range: -40°C to +125°C
Also consider: MCP4022, MCP4023, MCP4024

推荐MICROCHIP全系列产品推广商：（可申请部分免费样片，资料，大家赶快行动吧！）
授权A级代理商;提供技术支持;提供成熟方案;提供免费样品;提供详细资料！
深圳市英锐恩科技有限公司
联系电话: 0755-88845951 82543411传真：0755-82543511
E-mail: enroo@enroo.com
网址: www.enroo.com （”o”为字母）
公司地址: 福田区深南中路嘉汇新城汇商中心1203-1205
专业为客户提供芯片选型指导、技术咨询、开发工具技术支持、产品开发设计等专业的技术服务。
同时为Microchip全系列芯片代理推广商,分销服务商,专业提供Microchip全系列开发工具及技术支持。
页: [1]
查看完整版本: MCP4021/2/3/4 DataSheet