DAC7644E

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC7644E is a high-performance, quad-channel, 16-bit digital-to-analog converter. It is designed to convert digital signals into analog voltages with exceptional accuracy and precision.

Characteristics: - Quad-channel: The DAC7644E consists of four independent channels, allowing for simultaneous conversion of multiple digital signals. - High resolution: With a 16-bit resolution, the DAC7644E can provide precise analog outputs. - Low noise: The converter offers low noise performance, ensuring accurate signal reproduction. - Fast settling time: The DAC7644E has a fast settling time, enabling rapid response to changes in input signals. - Wide voltage range: It operates over a wide voltage range, making it suitable for various applications. - Low power consumption: The DAC7644E is designed to consume minimal power, enhancing energy efficiency.

Package: The DAC7644E comes in a small outline package (SOIC) with 16 pins.

Essence: The DAC7644E is an essential component in systems requiring high-precision analog output generation from digital signals.

Packaging/Quantity: The DAC7644E is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Resolution: 16 bits
• Number of Channels: 4
• Voltage Reference Range: 0V to Vref
• Output Voltage Range: 0V to Vref
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Settling Time: 10µs (typical)
• Power Consumption: 1.5mW (typical)

Pin Configuration

The DAC7644E has a 16-pin configuration as follows:

Pin 1: Vref Pin 2: Channel A Output Pin 3: Channel B Output Pin 4: Channel C Output Pin 5: Channel D Output Pin 6: GND Pin 7: GND Pin 8: GND Pin 9: GND Pin 10: Serial Data Input Pin 11: Serial Clock Input Pin 12: Chip Select Input Pin 13: Power Supply (VDD) Pin 14: Power Supply (VDD) Pin 15: Power Supply (VDD) Pin 16: Power Supply (VDD)

Functional Features

• Simultaneous Update: The DAC7644E allows for simultaneous update of all four channels, ensuring synchronized analog outputs.
• Serial Interface: It features a serial interface for easy integration with microcontrollers and digital systems.
• Internal Reference: The DAC7644E includes an internal voltage reference, eliminating the need for an external reference source.
• Power-On Reset: Upon power-up, the DAC7644E performs a reset to ensure stable operation.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Low noise performance - Fast settling time - Wide voltage range - Low power consumption - Simultaneous update capability

Disadvantages: - Limited number of channels (4)

Working Principles

The DAC7644E operates by converting digital input codes into corresponding analog voltages. It utilizes an internal digital-to-analog conversion technique that accurately translates the digital signals into precise analog outputs. The converter's high-resolution architecture ensures minimal quantization errors, resulting in accurate analog representation of the input data.

Detailed Application Field Plans

The DAC7644E finds applications in various fields, including:

1. Industrial Automation: It is used in control systems to generate precise analog signals for controlling actuators, valves, and motor drives.
2. Audio Equipment: The DAC7644E is employed in high-fidelity audio systems to convert digital audio signals into analog waveforms with exceptional clarity and accuracy.
3. Instrumentation: It is utilized in test and measurement equipment to provide accurate analog outputs for signal generation and calibration purposes.
4. Communication Systems: The DAC7644E is integrated into communication systems to convert digital signals into analog voltages for modulation and demodulation processes.

Detailed and Complete Alternative Models

1. DAC7642E: Similar to the DAC7644E but with two channels instead of four.
2. DAC7615E: A 12-bit quad-channel digital-to-analog converter with similar characteristics to the DAC7644E.
3. DAC8830E: A low-power, 16-bit quad-channel digital-to-analog converter suitable for battery-powered applications.

These alternative models offer different channel configurations and specifications while providing similar functionality to the DAC7644E.

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