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Name: MCP4812-E/MS
Brand: Microchip Technology
SKU: MCP4812-E/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Microchip Technology MCP4812-E/MS

Part No.:: MCP4812-E/MS

Manufacturer:: Microchip Technology

Package:: 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

Datasheet:: MCP4812-E/MS.pdf

Description:: IC DAC 10BIT V-OUT 8MSOP

In Stock:: 3057

Quantity:: Add To Cart

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MCP4812-E/MS Specifications

Package/Case:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
NumberofBits:
10
NumberofD/AConverters:
2
SettlingTime:
4.5µs (Typ)
OutputType:
Voltage - Buffered
DifferentialOutput:
No
DataInterface:
SPI
ReferenceType:
Internal
Voltage-SupplyAnalog:
2.7V ~ 5.5V
Voltage-SupplyDigital:
2.7V ~ 5.5V
INL/DNL(LSB):
±1, ±0.2
Architecture:
String DAC
OperatingTemperature:
-40°C ~ 125°C

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MCP4812-E/MS information

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Basic introduction and simple engineering application of MCP4812-E/MS

MCP4812-E/MS is a digital-to-analog converter (DAC) chip manufactured by Microchip Technology, offering high precision and versatility for analog signal generation in various electronic applications.

Introduction:

The MCP4812-E/MS DAC provides users with the capability to generate analog voltages with high accuracy and resolution from digital inputs. With its 12-bit resolution, SPI interface, and small form factor, it's suitable for a wide range of projects requiring analog signal generation, such as waveform synthesis, sensor interfacing, and audio applications.

Application Scenario:

In this tutorial, we will explore a simple project utilizing the MCP4812-E/MS DAC to generate analog voltages for controlling the brightness of an LED. This project will demonstrate the basic functionality of the DAC and how it can be interfaced with a microcontroller for practical applications.

Experiment Setup:

To build the LED brightness control system using MCP4812-E/MS, follow these steps:

1. Hardware Setup:

- Connect the MCP4812-E/MS DAC to your microcontroller using the SPI interface. Ensure proper wiring of the SPI lines (SCK, MOSI, MISO) and the chip select (CS) pin.

- Connect the output pin (VOUT) of the MCP4812-E/MS DAC to the input of a voltage amplifier circuit. This circuit will amplify the DAC's output voltage to drive the LED.

- Connect the output of the voltage amplifier circuit to the LED. Ensure appropriate current-limiting resistors are used to protect the LED from excess current.

2. Software Configuration:

- Write firmware code for your microcontroller to interface with the MCP4812-E/MS DAC via SPI. Configure the SPI communication settings and implement functions to send digital values to the DAC for analog voltage generation.

- Implement a PWM-like algorithm in your firmware to vary the output voltage of the DAC dynamically, controlling the brightness of the LED. Map the desired brightness levels to corresponding digital values to be sent to the DAC.

3. Testing and Calibration:

- Upload the firmware code to your microcontroller and power up the system.

- Use a multimeter or oscilloscope to monitor the voltage output from the MCP4812-E/MS DAC. Verify that the voltage levels correspond to the desired brightness levels of the LED.

- Fine-tune the firmware algorithm and calibration settings as needed to achieve the desired LED brightness control range and accuracy.

Conclusion:

In this tutorial, we've explored the basic functionality of the MCP4812-E/MS DAC and demonstrated its application in a simple LED brightness control project. By interfacing the DAC with a microcontroller and implementing firmware algorithms, we can dynamically control analog voltages for various practical purposes. Experimenting with projects like this helps to deepen understanding and proficiency in utilizing DACs in electronic design.

Considerations:

- Analog Signal Integrity: Ensure proper signal conditioning and noise reduction techniques are employed to maintain signal integrity and accuracy.

- Power Supply Stability: Provide stable power to the MCP4812-E/MS DAC and associated circuitry to prevent voltage fluctuations that may affect performance.

- System Integration: Consider the overall system requirements and compatibility when integrating the MCP4812-E/MS DAC into larger projects or systems.

MCP4812-E/MS FAQ

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6. What is the process for return or replacement of MCP4812-E/MS?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MCP4812-E/MS we delivered, we will accept the replacement or return of the MCP4812-E/MS only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MCP4812-E/MS.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations