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MCP3425A4T-E/CH

更新时间： 2024-12-01 19:22:35
品牌 Logo 应用领域
美国微芯 - MICROCHIP 光电二极管转换器
页数 文件大小 规格书
30页 470K
描述
IC,A/D CONVERTER,SINGLE,16-BIT,TSOP,6PIN

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MCP3425A4T-E/CH 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：TSOP, TSOP6,.11,37Reach Compliance Code：compliant
风险等级：5.81转换器类型：A/D CONVERTER
JESD-30 代码：R-PDSO-G6位数：16
功能数量：1端子数量：6
最高工作温度：125 °C最低工作温度：-40 °C
输出位码：2'S COMPLEMENT BINARY封装主体材料：PLASTIC/EPOXY
封装代码：TSOP封装等效代码：TSOP6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE
电源：5 V认证状态：Not Qualified
子类别：Analog to Digital Converters标称供电电压：5 V
表面贴装：YES温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUALBase Number Matches：1

MCP3425A4T-E/CH 数据手册

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MCP3425  
16-Bit Analog-to-Digital Converter  
with I2C Interface and On-Board Reference  
Features  
Description  
• 16-bit ΔΣ ADC in a SOT-23-6 package  
• Differential input operation  
The MCP3425 is a single channel low-noise, high  
accuracy ΔΣ A/D converter with differential inputs and  
up to 16 bits of resolution in a small SOT-23-6 package.  
The on-board precision 2.048V reference voltage  
enables an input range of ±2.048V differentially  
(Δ voltage = 4.096V). The device uses a two-wire I2C  
compatible serial interface and operates from a single  
2.7V to 5.5V power supply.  
• Self calibration of Internal Offset and Gain per  
each conversion  
• On-board Voltage Reference:  
- Accuracy: 2.048V ± 0.05%  
• On-board Programmable Gain Amplifier (PGA):  
- Gains of 1,2, 4 or 8  
The MCP3425 device performs conversion at rates of  
15, 60, or 240 samples per second (SPS) depending  
on the user controllable configuration bit settings using  
the two-wire I2C serial interface. This device has an on-  
board programmable gain amplifier (PGA). The user  
can select the PGA gain of x1, x2, x4, or x8 before the  
analog-to-digital conversion takes place. This allows  
the MCP3425 device to convert a smaller input signal  
with high resolution. The device has two conversion  
modes: (a) Continuous mode and (b) One-Shot mode.  
In One-Shot mode, the device enters a low current  
standby mode automatically after one conversion. This  
reduces current consumption greatly during idle peri-  
ods.  
• On-board Oscillator  
• INL: 10 ppm of FSR (FSR = 4.096V/PGA)  
• Programmable Data Rate Options:  
- 15 SPS (16 bits)  
- 60 SPS (14 bits)  
- 240 SPS (12 bits)  
• One-Shot or Continuous Conversion Options  
• Low current consumption:  
- 145 µA typical  
(VDD= 3V, Continuous Conversion)  
• One-Shot Conversion (1 SPS) with VDD = 3V:  
- 9.7 µA typical with 16 bit mode  
The MCP3425 device can be used for various high  
accuracy analog-to-digital data conversion applications  
where design simplicity, low power, and small footprint  
are major considerations.  
- 2.4 µA typical with 14 bit mode  
- 0.6 µA typical with 12 bit mode  
• Supports I2C Serial Interface:  
- Standard, Fast and High Speed Modes  
• Single Supply Operation: 2.7V to 5.5V  
• Extended Temperature Range: -40°C to 125°C  
Block Diagram  
VSS  
VDD  
Typical Applications  
• Portable Instrumentation  
Voltage Reference  
(2.048V)  
• Weigh Scales and Fuel Gauges  
• Temperature Sensing with RTD, Thermistor, and  
Thermocouple  
Gain = 1, 2, 4, or 8  
VREF  
VIN+  
• Bridge Sensing for Pressure, Strain, and Force.  
ΔΣ ADC  
Converter  
Clock  
Oscillator  
Package Types  
PGA  
Top View  
SOT-23-6  
VIN-  
V +  
6
V -  
1
IN  
IN  
I2C Interface  
V
V
5
4
2
3
DD  
SS  
SDA  
SCL  
SCL  
SDA  
© 2007 Microchip Technology Inc.  
DS22072A-page 1  
1234567...30

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