Datasheet > MCP3221A0T-I/OT

MCP3221A0T-I/OT

更新时间： 2024-11-29 22:26:31

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
27页	522K
描述
Low Power 12-Bit A/D Converter With I2C⑩ Interface

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MCP3221A0T-I/OT 数据手册

MCP3221

Low Power 12-Bit A/D Converter With I²C™ Interface

Features

Description

• 12-bit resolution

The Microchip Technology Inc. MCP3221 is a succes-

sive approximation A/D converter with 12-bit resolu-

tion. Available in the SOT-23 package, this device

provides one single-ended input with very low power

consumption. Based on an advanced CMOS technol-

ogy, the MCP3221 provides a low maximum conver-

sion current and standby current of 250 µA and 1 µA,

respectively. Low current consumption, combined with

the small SOT-23 package, make this device ideal for

battery-powered and remote data acquisition

applications.

Communication to the MCP3221 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.

• ±1 LSB DNL, ±2 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 a single 2-Wire bus

• 22.3 ksps in I²C 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:

- Industrial: -40°C to +85°C

- Extended: -40°C to +125°C

• Small SOT-23 package

The MCP3221 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 and ±2 LSB integral non-linearity,

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

–

12-bit SAR

Sample

and

SCL

AIN

V_DD

V_SS

Hold

Clock

Control Logic

I²C™ Interface

SCL SDA

SDA

AIN

 2003 Microchip Technology Inc.

DS21732B-page 1

12 3 4 5 6 7...27

中文翻译

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MCP3221A0T-I/OT 替代型号

型号	品牌	替代类型	描述	数据表
MCP3221A0T-E/OT	MICROCHIP	功能相似	Low Power 12-Bit A/D Converter With I2C⑩ Inte

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