MCP4902T-E/ST

Product Overview

Category:

The MCP4902T-E/ST belongs to the category of digital-to-analog converters (DACs).

Use:

It is used to convert digital signals into analog voltage outputs.

Characteristics:

• Resolution: 8-bit
• Interface Type: Serial (SPI)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C

Package:

The MCP4902T-E/ST is available in a 14-pin TSSOP package.

Packaging/Quantity:

The product is typically sold in reels with a quantity of 2500 units per reel.

Specifications

• Resolution: 8 bits
• Number of DACs: 2
• Settling Time: 4.5 µs
• Output Voltage Range: 0V to Vref
• Reference Voltage: Internal or External
• Power Consumption: 400 µA (typical)

Detailed Pin Configuration

The MCP4902T-E/ST has the following pin configuration:

| Pin Name | Description | |----------|-------------| | VDD | Power Supply Voltage | | VSS | Ground | | CS | Chip Select for SPI Interface | | SCK | Serial Clock for SPI Interface | | SDI | Serial Data Input for SPI Interface | | LDAC | Load DAC Register Input | | SHDN | Shutdown Control Input | | VREF | Reference Voltage Input | | A | Analog Output A | | B | Analog Output B |

Functional Features

• Dual DAC Channels
• SPI Interface for Communication
• Internal or External Reference Voltage
• Low Power Consumption
• Fast Settling Time

Advantages and Disadvantages

Advantages

• Dual DAC channels provide flexibility in applications requiring multiple analog outputs.
• SPI interface allows for easy integration with microcontrollers and other digital systems.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Limited resolution (8 bits) may not be suitable for applications requiring higher precision.

Working Principles

The MCP4902T-E/ST operates by receiving digital input data through the SPI interface and converting it into corresponding analog voltage outputs. The reference voltage, whether internal or external, determines the maximum output voltage range.

Detailed Application Field Plans

The MCP4902T-E/ST is commonly used in the following applications: - Audio equipment - Industrial automation - Test and measurement instruments - Motor control systems

Detailed and Complete Alternative Models

Some alternative models to the MCP4902T-E/ST include: - MCP4922: 12-bit resolution, dual DAC channels - DAC0808: 8-bit resolution, parallel interface - AD5622: 12-bit resolution, low power consumption

In conclusion, the MCP4902T-E/ST is an 8-bit dual DAC with SPI interface, suitable for various applications requiring analog voltage outputs. Its low power consumption and fast settling time make it a versatile choice for embedded systems and industrial applications.

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