DAC7800KPG4

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC7800KPG4 is a high-performance, precision digital-to-analog converter designed for various applications that require accurate conversion of digital signals to analog voltages. It is commonly used in industrial control systems, data acquisition systems, audio equipment, and communication devices.

Characteristics: - High resolution: The DAC7800KPG4 provides a resolution of up to 16 bits, ensuring precise analog output. - Low power consumption: It operates at low power levels, making it suitable for battery-powered devices. - Fast settling time: The converter quickly settles to the desired output voltage, minimizing any delay in signal processing. - Wide operating temperature range: It can operate reliably in extreme temperature conditions, ranging from -40°C to +125°C.

Package: The DAC7800KPG4 is available in a small form factor package, which is the KPG4 package. This package offers excellent thermal performance and ease of integration into various circuit designs.

Essence: The essence of the DAC7800KPG4 lies in its ability to convert digital signals into precise analog voltages with high resolution and accuracy.

Packaging/Quantity: The DAC7800KPG4 is typically sold in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Resolution: Up to 16 bits
• Output Voltage Range: 0V to Vref
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Total Unadjusted Error: ±1 LSB (maximum)
• Power Consumption: 1.2mW (typical)

Detailed Pin Configuration

The DAC7800KPG4 has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. VDD: Power supply voltage
2. VREF: Reference voltage input
3. AGND: Analog ground
4. OUT: Analog output voltage
5. A0-A15: Digital input pins for setting the desired analog output voltage
6. DGND: Digital ground
7. SYNC: Synchronization input for updating the analog output voltage
8. CLK: Clock input for synchronization
9. LDAC: Load DAC input for latching the digital input data
10. REFOUT: Reference voltage output

Functional Features

• High linearity: The DAC7800KPG4 offers excellent linearity, ensuring accurate representation of the digital input signal in the analog domain.
• Low glitch energy: It minimizes glitches during transitions, reducing unwanted noise in the output signal.
• Power-on reset: The device includes a power-on reset circuitry that ensures proper initialization upon power-up.
• SPI-compatible interface: It supports a serial peripheral interface (SPI) for easy integration with microcontrollers and other digital devices.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Low power consumption - Fast settling time - Wide operating temperature range - Small form factor package for easy integration

Disadvantages: - Limited output voltage range (0V to Vref) - Requires external reference voltage source

Working Principles

The DAC7800KPG4 utilizes a resistor ladder network and digital-to-analog conversion techniques to convert digital input codes into corresponding analog voltages. The digital input codes control the switching of resistors in the ladder network, determining the output voltage level. The converter operates based on the principle of binary-weighted current division, where each bit contributes to a specific fraction of the full-scale output voltage.

Detailed Application Field Plans

The DAC7800KPG4 finds applications in various fields, including:

1. Industrial Control Systems: It is used for precise control of analog signals in industrial automation and process control systems.
2. Data Acquisition Systems: The converter enables accurate conversion of digital sensor data into analog signals for further processing and analysis.
3. Audio Equipment: It is employed in audio devices such as digital-to-analog converters, amplifiers, and mixers to ensure high-fidelity sound reproduction.
4. Communication Devices: The DAC7800KPG4 is utilized in communication systems for signal modulation, demodulation, and filtering purposes.

Detailed and Complete Alternative Models

1. DAC8800KPG4: A similar digital-to-analog converter with 16-bit resolution and low power consumption.
2. DAC7821KPG4: This model offers a higher output voltage range and additional features such as internal reference voltage generation.
3. DAC7811KPG4: A lower-resolution version of the DAC7800KPG4, suitable for applications where high precision is not critical.

These alternative models provide options with varying specifications