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MCP3021

更新时间： 2024-11-24 04:40:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器光电三端双向交流开关输出元件
页数	文件大小	规格书
26页	546K
描述
Low Power 10-Bit A/D Converter With I2C⑩ Interface

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MCP3021 数据手册

MCP3021

Low Power 10-Bit A/D Converter With I²C™ Interface

Features

Description

• 10-bit resolution

The Microchip Technology Inc. MCP3021 is a succes-

sive approximation A/D converter (ADC) with 10-bit

resolution. Available in the SOT-23 package, this

device provides one single-ended input with very low

power consumption. Based on an advanced CMOS

technology, the MCP3021 provides a low maximum

conversion current and standby current of 250 µA and

1 µA, respectively. Low current consumption, com-

bined with the small SOT-23 package, make this

device ideal for battery-powered and remote data

acquisition applications.

• ±1 LSB DNL, ±1 LSB INL max.

• 250 µA max conversion current

• 5 nA typical standby current, 1 µA max.

• I C™ compatible serial interface

- 100 kHz I C Standard mode

- 400 kHz I C Fast mode

• Up to 8 devices on single 2-wire bus

• 22.3 ksps in I C Fast mode

• Single-ended analog input channel

• On-chip sample and hold

• On-chip conversion clock

• Single supply specified operation: 2.7V to 5.5V

• Temperature range:

- Extended: -40°C to +125°C

• Small SOT-23 package

Communication to the MCP3021 is performed using a

2-wire I C compatible interface. Standard (100 kHz)

and Fast (400 kHz) I C modes are available with the

device. An on-chip conversion clock enables indepen-

dent timing for the I C and conversion clocks. The

device is also addressable, allowing up to eight devices

on a single 2-wire bus.

The MCP3021 runs on a single supply voltage that

operates over a broad range of 2.7V to 5.5V. This

device also provides excellent linearity of ±1 LSB differ-

ential non-linearity (DNL) and ±1 LSB integral non-

linearity (INL), maximum.

Applications

• Data Logging

• Multi-zone Monitoring

• Hand Held Portable Applications

• Battery Powered Test Equipment

• Remote or Isolated Data Acquisition

Functional Block Diagram

Package Type

5-Pin SOT-23A

DAC

Comparator

–

Sample

and

10-Bit SAR

SCL

SDA

AIN

Hold

Clock

Control Logic

I C™

Interface

AIN

SCL SDA

 2003 Microchip Technology Inc.

DS21805A-page 1

12 3 4 5 6 7...26

中文翻译

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