مبدل سیگنالهای آنالوگ به دیجیتال (Analog to Digital Converter = ADC)، مداری الکترونیکی که سیگنالهای پیوسته آنالوگ را به دادههای گسسته دیجیتالی یا رقمی تبدیل میکند.
کاربرد تبدیل سیگنال های آنالوگ به دیجیتال در اندازه گیری خروجی سنسورهای آنالوگ، اندازه گیری مقدار ولتاژ و اندازه گیری و پردازش هر سیگنال آنالوگ توسط سیستم های دیجیتال است.
Description:
MCP3201 device is a successive approximation 12-bit Analog-to-Digital (A/D) Converter by Microchip Technology Inc. with an on-board sample and holds circuitry. The device provides a single pseudo-differential input. Differential Nonlinearity (DNL) is specified at ±1 LSB, and Integral Nonlinearity (INL) is offered in ±1 LSB (MCP3201-B) and ±2 LSB (MCP3201-C) versions. Communication with the device is done using a simple serial interface compatible with the SPI protocol. The device is capable of sample rates of up to 100 ksps at a clock rate of 1.6 MHz. The MCP3201 device operates over a broad voltage range (2.7V5.5V). Low-current design permits operation with typical standby and active currents of only 500 nA and 300 µA, respectively. The device is offered in 8-pin MSOP, PDIP, TSSOP, and 150 mil SOIC packages.
Features:
12-Bit Resolution
On-chip Sample and Hold
SPI Serial Interface (Modes 0,0 and 1,1)
Single Supply Operation: 2.7V - 5.5V
100 ksps Maximum Sampling Rate at VDD = 5V
50 ksps Maximum Sampling Rate at VDD = 2.7V
Low-Power CMOS Technology
500 nA Typical Standby Current, 2 µA Maximum
400 µA Maximum Active Current at 5V
Industrial Temp Range: -40°C to +85°C
8-pin MSOP, PDIP, SOIC and TSSOP Packages
Applications:
Sensor Interface
Process Control
Data Acquisition
Battery Operated Systems