MCP3421A2T-E/CH

18-Bit ADC with I2C Interface and Onboard Reference (08/10/2009)

 
The MCP3421 is a single channel low-noise, high accuracy delta-sigma A/D converter with differential inputs and up to 18 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. The device uses a two-wire I2C™ compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. The MCP3421 device performs conversions at rates of 3.75, 15, 60 or 240 samples per second depending on user controllable configuration bit settings using the two-wire I2C™ compatible serial interface. This device has an onboard programmable gain amplifier (PGA). User can select the PGA gain of x1, x2, x4, or x8 before the analog-to-digital conversion takes place. This allows the MCP3421 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 periods. The MCP3421 device can be used for various high accuracy analog-to-digital data conversion applications where ease of use, low power consumption and small footprint are major considerations.

Datasheets
MCP3421AxT-E/CH
Product Photos
SOT-23-6 PKG
Product Training Modules
MCP3901 Analog Front End
Standard Package
3,000
Category
Integrated Circuits (ICs)
Family
Data Acquisition – Analog to Digital Converters
Series
–
Number of Bits
18
Sampling Rate (Per Second)
3.75
Data Interface
I²C, Serial 
Number of Converters
1
Power Dissipation (Max)
–
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount 
Package / Case
SOT-23-6
Supplier Device Package
SOT-23-6
Packaging
Tape & Reel (TR)
For Use With
MCP3421EV-ND – BOARD EVAL FOR MCP3421 SOT23-6
Other Names
MCP3421A2T-E/CH-ND
MCP3421A2T-E/CHTR