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MCP3221A2T-E/OT 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
AD转换器
封装:
SOT-23-5
描述:
低功耗12位A / D转换器， I2C⑩接口 Low Power 12-Bit A/D Converter With I2C⑩ Interface
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MCP3221A2T-E/OT数据手册
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2002-2017 Microchip Technology Inc. DS20001732E-page 1
MCP3221
Features
• 12-bit Resolution
• ±1 LSB DNL, ±2 LSB INL maximum
• 250 µA Max Conversion Current
• 5 nA Typical Standby Current, 1 µA maximum
•I
2
C Compatible Serial Interface
- 100 kHz I
2
C Standard mode
- 400 kHz I
2
C Fast mode
• Up to 8 Devices on a Single 2-wire Bus
• 22.3 ksps in I
2
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-23-5 package
Applications
• Data Logging
• Multi-Zone Monitoring
• Handheld Portable Applications
• Battery-Powered Test Equipment
• Remote or Isolated Data Acquisition
General Description
Microchip’s MCP3221 is a successive approximation
A/D converter (ADC) with a 12-bit resolution. Available
in the SOT-23 package, this device provides one sin-
gle-ended input with very low-power consumption.
Based on an advanced CMOS technology, the
MCP3221 provides a low maximum conversion 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, I
2
C compatible interface. Standard (100 kHz)
and Fast (400 kHz) I
2
C modes are available with the
device. An on-chip conversion clock enables
independent timing for the I
2
C and conversion clocks.
The device is also addressable, allowing up to eight
devices on a single 2-wire bus.
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
differential nonlinearity (DNL) and ±2 LSB integral
nonlinearity (INL), maximum.
Package Type
5-Pin SOT-23
SCL
A
IN
MCP3221
1
2
3
5
SDA
V
SS
V
DD
4
Low-Power 12-Bit A/D Converter with I
2
C Interface
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