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MCP3202T-BI/P PDF预览

MCP3202T-BI/P

更新时间: 2024-11-27 03:55:07
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美国微芯 - MICROCHIP 转换器
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28页 507K
描述
2.7V Dual Channel 12-Bit A/D Converter with SPI Serial Interface

MCP3202T-BI/P 数据手册

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MCP3202  
2.7V Dual Channel 12-Bit A/D Converter  
with SPI Serial Interface  
Features  
Package Types  
• 12-bit resolution  
PDIP, MSOP, SOIC, TSSOP  
• ±1 LSB max DNL  
CS/SHDN  
CH0  
1
8
VDD/VREF  
• ±1 LSB max INL (MCP3202-B)  
• ±2 LSB max INL (MCP3202-C)  
2
3
4
7
6
5
CLK  
DOUT  
DIN  
• Analog inputs programmable as single-ended or  
pseudo-differential pairs  
CH1  
VSS  
• On-chip sample and hold  
• SPI serial interface (modes 0,0 and 1,1)  
• Single supply operation: 2.7V-5.5V  
• 100 ksps max. sampling rate at VDD = 5V  
• 50 ksps max. sampling rate at VDD = 2.7V  
• Low power CMOS technology  
Functional Block Diagram  
VSS  
VDD  
- 500 nA typical standby current, 5 μA max.  
- 550 µA max. active current at 5V  
Input  
CH0  
CH1  
• Industrial temp range: -40°C to +85°C  
• 8-pin MSOP, PDIP, SOIC and TSSOP packages  
Channel  
Mux  
DAC  
Comparator  
Applications  
12-Bit SAR  
Sample  
• Sensor Interface  
and  
Hold  
• Process Control  
• Data Acquisition  
Shift  
Register  
Control Logic  
• Battery Operated Systems  
Description  
DIN  
CS/SHDN  
CLK  
DOUT  
The Microchip Technology Inc. MCP3202 is a succes-  
sive approximation 12-bit Analog-to-Digital (A/D)  
Converter with on-board sample and hold circuitry. The  
MCP3202 is programmable to provide a single pseudo-  
differential input pair or dual single-ended inputs. Differ-  
ential Nonlinearity (DNL) is specified at ±1 LSB, and  
Integral Nonlinearity (INL) is offered in ±1 LSB  
(MCP3202-B) and ±2 LSB (MCP3202-C) versions.  
Communication with the device is done using a simple  
serial interface compatible with the SPI protocol. The  
device is capable of conversion rates of up to 100 ksps  
at 5V and 50 ksps at 2.7V. The MCP3202 device oper-  
ates over a broad voltage range (2.7V-5.5V). Low-  
current design permits operation with typical standby  
and active currents of only 500 nA and 375 μA, respec-  
tively. The MCP3202 is offered in 8-pin MSOP, PDIP,  
TSSOP and 150 mil SOIC packages.  
© 2006 Microchip Technology Inc.  
DS21034D-page 1  

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