DAC7644E/1KG4

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC7644E/1KG4 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/1KG4 consists of four independent channels, allowing for simultaneous conversion of multiple digital signals. - High resolution: With a 16-bit resolution, this DAC provides precise and detailed analog output. - Low noise: The DAC7644E/1KG4 offers low noise performance, ensuring clean and accurate analog signals. - Fast settling time: It has a fast settling time, enabling quick response to changes in the input digital signals. - Wide voltage range: This DAC operates over a wide voltage range, making it suitable for various applications.

Package: The DAC7644E/1KG4 comes in a small outline package (SOIC) with 20 pins.

Essence: The essence of the DAC7644E/1KG4 lies in its ability to convert digital data into precise analog voltages, providing a crucial interface between digital systems and analog devices.

Packaging/Quantity: The DAC7644E/1KG4 is typically available in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 16 bits
• Number of Channels: 4
• Output Type: Voltage
• Output Range: 0V to Vref
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial (SPI)
• Package Type: SOIC
• Pin Count: 20

Detailed Pin Configuration

The DAC7644E/1KG4 has a total of 20 pins, which are assigned specific functions as follows:

1. VDD: Positive power supply
2. VSS: Ground
3. AGND: Analog ground
4. REF: Reference voltage input
5. OUTA: Analog output channel A
6. OUTB: Analog output channel B
7. OUTC: Analog output channel C
8. OUTD: Analog output channel D
9. DIN: Serial data input
10. SCLK: Serial clock input
11. SYNC: Chip select input 12-19. NC: No connection
12. DVDD: Digital power supply

Functional Features

• High accuracy: The DAC7644E/1KG4 offers excellent linearity and low integral non-linearity (INL), ensuring accurate analog output.
• Low glitch energy: It minimizes glitches during transitions, resulting in smooth and stable analog signals.
• Power-down mode: It includes a power-down mode to conserve power when the device is not in use.
• Daisy-chain capability: Multiple DAC7644E/1KG4 devices can be daisy-chained for synchronized operation.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Low noise performance - Fast settling time - Wide voltage range - Power-down mode for power saving - Daisy-chain capability for synchronization

Disadvantages: - Limited number of channels (4) - Requires an external reference voltage

Working Principles

The DAC7644E/1KG4 operates based on the principle of converting digital data into corresponding analog voltages. It utilizes a digital-to-analog conversion technique known as pulse-width modulation (PWM). The digital input data is processed internally and converted into a series of pulses with varying widths. These pulses are then filtered to produce a smooth analog output voltage.

Detailed Application Field Plans

The DAC7644E/1KG4 finds applications in various fields, including:

1. Industrial automation: It can be used in control systems to generate precise analog signals for controlling motors, valves, and other industrial equipment.
2. Audio equipment: The DAC7644E/1KG4 is suitable for audio applications where high-resolution digital-to-analog conversion is required, such as in professional audio interfaces and digital audio workstations.
3. Test and measurement: It can be utilized in test and measurement instruments to generate accurate analog signals for testing and calibration purposes.
4. Communication systems: The DAC7644E/1KG4 can be employed in communication systems for generating analog signals used in modulation and demodulation processes.

Detailed and Complete Alternative Models

1. DAC7644E/1K: Similar to the DAC7644E/1KG4 but comes in a different package (TSSOP) with 20 pins.
2. DAC7644E/1K5: A higher precision version of the DAC7644E/1KG4 with a 20