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MCP4728 DAC: Datasheet, Address, Features [Video&FAQ]

Author: Irene
Date: 17 Mar 2022
 1088
MCP4728 Features

Ordering & Quality

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MCP4728A0-E-UN MCP4728A0-E-UN Company:Microchip Technology Remark:IC DAC 12BIT V-OUT 10MSOP Package:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
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MCP4728A0T-E-UN MCP4728A0T-E-UN Company:Microchip Technology Remark:IC DAC 12BIT V-OUT 10MSOP Package:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
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100+: $1.44000
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MCP4728A1-E-UN MCP4728A1-E-UN Company:Microchip Technology Remark:IC DAC 12BIT V-OUT 10MSOP Package:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
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Price:
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100+: $1.44000
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MCP4728-E-UN MCP4728-E-UN Company:Microchip Technology Remark:IC DAC 12BIT V-OUT 10MSOP Package:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
DataSheet
In Stock:4091
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Price:
1+: $1.89000
25+: $1.58000
100+: $1.44000
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MCP4728T-E-UN MCP4728T-E-UN Company:Microchip Technology Remark:IC DAC 12BIT V-OUT 10MSOP Package:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
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In Stock:12323
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Product Overview

The MCP4728 device is a quad, 12-bit voltage output Digital-to-Analog Convertor (DAC) with nonvolatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing.

 

This blog will introduce MCP4728 systematically from its features, pinout to its specifications, applications, also including MCP4728 datasheet and so much more.

 

Catalog

Product Overview

MCP4728 Tutorial

MCP4728 Features

MCP4728 Pinout

MCP4728 Block Diagram

MCP4728 Applications

MCP4728-E/UN Specification

MCP4728-E/UN CAD Models

MCP4728 Address Mapping

MCP4728 Manufacturer

MCP4728 Datasheet

Using Warnings

MCP4728 FAQ

 

MCP4728 Tutorial

 

Video: Tutorial on Digital to Analog Converters (DAC) and Example Using the MCP4728 Part 1

 

Video: Tutorial on Digital to Analog Converters (DAC) and Example Using the MCP4728 Part 2

 

MCP4728 Features

  • 12-Bit Voltage Output DAC with Four Buffered

      Outputs

  • On-Board Nonvolatile Memory (EEPROM) for

     DAC Codes and I2C™ Address Bits

  • Internal or External Voltage Reference Selection
  • Output Voltage Range:

- Using Internal VREF (2.048V):

    0.000V to 2.048V with Gain Setting = 1

    0.000V to 4.096V with Gain Setting = 2

- Using External VREF (VDD):

    0.000V to VDD

  • ±0.2 Least Significant Bit (LSB) Differential

     Nonlinearity (DNL) (typical)

  • Fast Settling Time: 6 µs (typical)
  • Normal or Power-Down Mode
  • Low Power Consumption
  • Single-Supply Operation: 2.7V to 5.5V
  • I2C Interface:

- Address bits: User Programmable to

     EEPROM

- Standard (100 kbps), Fast (400 kbps) and

    High Speed (HS) Mode (3.4 Mbps)

  • 10-Lead MSOP Package
  • Extended Temperature Range: -40°C to +125°C

 

MCP4728 Pinout

The chip comes in a small, 10 pin, MSOP (Medium Square Outline Package) - an SMD device.

 

MCP4728 Pinout

MCP4728 Pinout

 

MCP4728 Block Diagram

The following figure shows the block diagram of MCP4728.

 

MCP4728 Block Diagram

MCP4728 Block Diagram

 

MCP4728 Applications

  • Set Point or Offset Adjustment
  • Sensor Calibration
  • Closed-Loop Servo Control
  • Low Power Portable Instrumentation
  • PC Peripherals
  • Programmable Voltage and Current Source
  • Industrial Process Control
  • Instrumentation
  • Bias Voltage Adjustment for Power Amplifiers

 

MCP4728-E/UN Specification

Product Attribute Attribute Value
Manufacturer: Microchip
Product Category: Digital to Analog Converters - DAC
Resolution: 12 bit
Number of Channels: 4 Channel
Settling Time: 6 us
Output Type: Voltage Buffered
Interface Type: 2-Wire, I2C
Analog Supply Voltage: 2.7 V to 5.5 V
Digital Supply Voltage: 2.7 V to 5.5 V
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 125 C
Mounting Style: SMD/SMT
Package / Case: MSOP-10
Qualification: AEC-Q100
Packaging: Tube
Height: 0.85 mm
Number of Converters: 4 Converter
Architecture: Resistor-String
Brand: Microchip Technology
DNL - Differential Nonlinearity: +/- 0.2 LSB
INL - Integral Nonlinearity: +/- 2 LSB
Moisture Sensitive: Yes
Operating Supply Current: 110 mA
Operating Supply Voltage: 3.3 V, 5 V
Product Type: DACs - Digital to Analog Converters
Reference Voltage: 2.048 V
Subcategory: Data Converter ICs
Supply Voltage - Max: 5.5 V
Supply Voltage - Min: 2.7 V
Unit Weight: 0.007760 oz

 

 

MCP4728-E/UN CAD Models

Followings are MCP4728-E/UN Symbol, Footprint, and 3D Model.

 

MCP4728-E/UN Symbol

MCP4728-E/UN Symbol

 

MCP4728-E/UN Footprint

MCP4728-E/UN Footprint

 

MCP4728-E/UN 3D Model

MCP4728-E/UN 3D Model

 

MCP4728 Address Mapping

The lower three bits of the address consist of the three digital inputs A2, A1, A0 while the upper bits are fixed at 1100xxx.

 

Unlike the both the MCP4725 and MCP4726 A0, A1 and A2 are fully programmable with their state stored into internal EEPROM. There is an option for the manufacturer to program these bits for you which would be useful on a large production run.

 

The the last bit( LSB ' 'L), sent following the address bits, is ignored as it is the read write bit (R/Wn). Therefore the addresses available are:

 

        0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67

 

For use in a simple system you will only need a single address 0x60 since that device will provide 4 DAC outputs.

 

MCP4728 Manufacturer

Microchip Technology Incorporated is a leading provider of smart, connected and secure embedded control solutions. Its easy-to-use development tools and comprehensive product portfolio enable customers to create optimal designs, which reduce risk while lowering total system cost and time to market. The company's solutions serve more than 120,000 customers across the industrial, automotive, consumer, aerospace and defense, communications and computing markets. Microchip offers outstanding technical support along with dependable delivery and quality.

 

MCP4728 Datasheet

MCP4728 Datasheet

 

Using Warnings

Note: Please check their parameters and pin configuration before replacing them in your circuit.

 

MCP4728 FAQ

① What is the mcp4728 quad Digital to analog converter?

The MCP4728 device is a quad, 12-bit voltage output Digital-to-Analog Convertor (DAC) with nonvolatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing.

 

② What is the reference voltage of the mcp4728?

The MCP4728 is an analogue DAC giving you four buffered output voltages controlled from an I2C serial interface. Each DAC can output a proportion of the input reference voltage. Since it's a 12bit device its resolution is Vref/4096. So you can choose very fine steps dividing down from the reference.

 

③ How many DAC outputs does the mcp4728 have?

The EEPROM address defaults to zero, so if you only need four DAC outputs, you don't need to program anything just use I2C address 0x60. With the MCP4728 you get four DAC outputs for every chip, giving you 32 possible DAC outputs on a single I2C bus. TIP: Power down unused DAC chains to save current used.

 

④ Can a mcp4728 communicate with an Arduino?

Wiring the MCP4728 to communicate with your microcontroller is straightforward thanks to the I2C interface. For these examples, we can use the Metro or Arduino to update the DAC. The instructions below show a Metro, but the same applies to an Arduino.

 

⑤ What does DAC stand for in audio category?

DAC is an acronym for Digital to Analog Converter. Any time you want to listen to a digital audio signal through an analog output you need a DAC to convert the digital signal from the source into an analog signal at the point of connection.

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