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MCP3427

Status: In Production

Features:

  • 16-bit resolution
  • 2-channel differential input operation
  • Differential input operation
  • On-board voltage reference with 15 ppm/°C drift
  • On-board PGA, gains of 1, 2, 4, 8
  • 15 SPS (16 bits)
  • 60 SPS (14 bits)
  • 240 SPS (12 bits)
  • INL 10 ppm of FSR max
  • Low current consumption, 135 µA at 3V
  • One-shot or continuous conversion options
  • Supports I2C™ serial interface with user configurable addresses
  • Extended temperature range: -40°C to +125°C
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MCP3427 is a two channel low-noise, high accuracy delta-sigma A/D converter with differential inputs and up to 16 bits of resolution. The on-board precision 2.048V reference voltage enables an input range of ±2.048V differentially. The device uses a two-wire IC™ compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. The MCP3427 device performs conversions at rates of 15, 60 or 240 samples per second depending on user controllable configuration bit settings using the two-wire I2C™Compatible Compatible compatible serial interface. The IC address is user configurable with two address selection pins. 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 MCP3427 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 MCP3427 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.

Additional Features
    • 16-bit resolution
    • 2-channel differential input operation
    • Differential input operation
    • On-board voltage reference with 15 ppm/°C drift
    • On-board PGA, gains of 1, 2, 4, 8
    • Programmable data rate options
      • 15 SPS (16 bits)
      • 60 SPS (14 bits)
      • 240 SPS (12 bits)
    • INL 10 ppm of FSR max
    • Low current consumption, 135 µA at 3V
    • One-shot or continuous conversion options
    • Supports I2C™ serial interface with user configurable addresses
    • Extended temperature range: -40°C to +125°C
Parametrics
Name
Value
Typical Supply Current (µA)
145
Typical INL (ppm)
10
Max Sample Rate (samples/sec)
15
Input Type
2 Differential
Interface
I²C™
Resolution (bits)
16
Supply Voltage Range (V)
2.7 to 5.5

Documents

Jump to:

Data Sheet

12/11/2009
944KB

Brochures

Product Line Card

Brochures

05/16/2011
120KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MCP3421 Battery Fuel Gauge Demo Board
MCP3421 Battery Fuel Gauge Demo Board ( MCP3421DM-BFG )

The MCP3421 Battery Fuel Gauge Demo Board demonstrates how to measure the battery voltage and discharging current using the MCP3421.

The MCU algorithm calculates the battery fuel being used. This demo board is shipped with 1.5V AAA non-rechargeable battery. The demo board displays the following parameters:

Measured battery voltage.
Measured battery

...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP3427T-E/MF
0.023900
0.234849
10
DFN
3x3x0.9mm
Matte Tin
e3
MCP3427-E/MF
0.023900
0.041667
10
DFN
3x3x0.9mm
Matte Tin
e3
MCP3427T-E/UN
0.023200
0.200000
10
MSOP
3x3mm
Matte Tin
e3
MCP3427-E/UN
0.023200
0.060000
10
MSOP
3x3mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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