Datasheet > MCP3021_13

MCP3021_13

更新时间： 2024-11-20 12:27:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
26页	561K
描述
Low Power 10-Bit A/D Converter With I2Câ¢ Interface

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MCP3021_13 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.

• I²C™ compatible serial interface

- 100 kHz I²C Standard mode

- 400 kHz I²C Fast mode

• Up to 8 devices on single 2-wire bus

• 22.3 ksps in I²C Fast mode

• Single-ended analog input channel

• On-chip sample and hold

Communication to the MCP3021 is performed using a

2-wire I²C compatible interface. Standard (100 kHz)

and Fast (400 kHz) I²C modes are available with the

device. An on-chip conversion clock enables indepen-

dent timing for the I²C and conversion clocks. The

device is also addressable, allowing up to eight devices

on a single 2-wire bus.

• 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

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

V_DD

V_SS

Package Type

5-Pin SOT-23A

DAC

Comparator

–

Sample

and

Hold

10-Bit SAR

V_DD

SCL

SDA

AIN

Clock

Control Logic

V_SS

I²C™

Interface

AIN

SCL SDA

 2003-2013 Microchip Technology Inc.

DS21805B-page 1

12 3 4 5 6 7...26

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