Digital Converter

The MCP3208-CI/P is an 8 channel, 12bit Analogue to Digital Converter (ADC) with SPI interface in 16 pin DIP package. This ADC combines high performance and low power consumption in a small package by making it as an ideal for embedded control applications. The MCP3208 features successive approximation register (SAR) architecture with onboard sample and hold circuitry allowing 12bit ADC capability to be added to any PIC microcontroller. It is programmable to provide four pseudo differential input pairs or eight single ended inputs. Differential nonlinearity (DNL) is specified at ±1LSB and integral nonlinearity (INL) is ±2LSB. Communication with devices is accomplished using simple serial interface compatible with SPI protocol. Low current design permits operation with typical standby and active currents of only 500nA (2μA maximum) and 320μA (400μA maximum) respectively.

Specifications:

Operating Temperature Min: -40°C
No. of Pins: 16Pins
Product Range: Octal 12-Bit SAR ADCs
Operating Temperature Max: 85°C
Supply Voltage Min: 2.7V
Supply Voltage Max: 5.5V
ADC / DAC Case Style: DIP
Data Interface: Serial, SPI
Sampling Rate: 100kSPS
Supply Voltage Type: Single
Resolution (Bits): 12bit
Input Channel Type: Pseudo Differential, Single Ended

the Microchip Technology MCP3421A0T ADC in an SOT-23 package is an 18-bit analog-to-digital converter designed for low-power applications. With a single channel and 3.75 S/s sampling rate, this device operates with a reference voltage of 2.048 V and supports I2C/serial/2-wire interfaces. It operates within a 2.7V to 5.5V supply range, consumes only 155 µA of current, and has an operating temperature range from -40°C to 125°C.
Features :
Resolution: 18 bits
Channels: 1
Interface: I2C, Serial, 2-Wire
Supply Voltage: 2.7V to 5.5V
Reference Voltage: 2.048V
Power Consumption: 155 µA
Sampling Rate: 3.75 S/s
Operating Temp Range: -40°C to 125°C