DAC8221FSZ

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC8221FSZ is a high-performance, 12-bit digital-to-analog converter designed for various applications that require precise analog output. It converts digital signals into corresponding analog voltages with exceptional accuracy and linearity.

Characteristics: - Resolution: 12 bits - Output Type: Voltage - Number of Channels: 1 - Interface Type: Serial (SPI) - Supply Voltage: 2.7V to 5.5V - Operating Temperature Range: -40°C to +105°C

Package: The DAC8221FSZ is available in a small outline package (SOIC) with 16 pins. This package offers excellent thermal performance and ease of integration into different circuit designs.

Essence: The essence of the DAC8221FSZ lies in its ability to convert digital data into precise analog voltages, making it an essential component in systems requiring accurate analog outputs.

Packaging/Quantity: The DAC8221FSZ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 12 bits
• Output Voltage Range: 0V to Vref
• Reference Voltage Range: 2.5V to 5.5V
• Integral Nonlinearity (INL): ±1 LSB (max)
• Differential Nonlinearity (DNL): ±1 LSB (max)
• Settling Time: 10µs (typ)
• Power Supply Rejection Ratio (PSRR): 80dB (typ)
• Total Harmonic Distortion (THD): -85dB (typ)
• Output Current: ±5mA (max)

Pin Configuration

The DAC8221FSZ features the following pin configuration:

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| | | DAC8221FSZ | |_______________________________________| | | | 1 2 3 4 5 6 7 8 | |_______________________________________| | | | VDD VOUT AGND SCLK DIN CS LDAC GND | |_______________________________________| ```

• VDD: Power supply voltage
• VOUT: Analog output voltage
• AGND: Analog ground
• SCLK: Serial clock input
• DIN: Serial data input
• CS: Chip select input
• LDAC: Load DAC input
• GND: Ground

Functional Features

The DAC8221FSZ offers the following functional features:

1. High Resolution: With a 12-bit resolution, it provides precise analog output voltages.
2. Serial Interface: The SPI interface allows easy integration with microcontrollers and digital systems.
3. Low Power Consumption: It operates at low power, making it suitable for battery-powered applications.
4. Fast Settling Time: The DAC quickly settles to its desired output voltage, minimizing delays in signal processing.
5. Power Supply Rejection: It exhibits excellent PSRR, reducing the impact of power supply noise on the output.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Easy integration with digital systems - Low power consumption - Fast settling time - Excellent power supply rejection

Disadvantages: - Limited to single-channel output - Requires an external reference voltage

Working Principles

The DAC8221FSZ operates by converting digital input data into corresponding analog voltages. It utilizes a 12-bit digital-to-analog conversion technique to accurately represent the digital values as analog output levels. The input data is provided through the serial interface, and the DAC generates the corresponding analog voltage based on this input.

Detailed Application Field Plans

The DAC8221FSZ finds applications in various fields where precise analog output is required. Some of the detailed application field plans include:

1. Industrial Automation: It can be used in control systems to generate accurate analog signals for controlling actuators, valves, and motor speed.
2. Audio Equipment: The DAC can be employed in audio devices to convert digital audio signals into high-fidelity analog outputs.
3. Instrumentation: It finds use in test and measurement equipment, providing precise analog voltages for calibration and signal generation.
4. Communication Systems: The DAC can be utilized in communication systems to generate analog signals for modulation and demodulation processes.
5. Automotive Electronics: It can be integrated into automotive systems for generating analog signals used in engine control, climate control, and entertainment systems.

Detailed and Complete Alternative Models

1. DAC8820: 16-bit digital-to-analog converter with similar features and performance as the DAC8221FSZ.
2. AD5667: 12-bit digital-to-an