DAC8822QCDBT

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC8822QCDBT is a high-performance, dual-channel, 16-bit digital-to-analog converter. It is designed to convert digital signals into analog voltages with exceptional accuracy and precision.

Characteristics: - Dual-channel design - 16-bit resolution - High accuracy and precision - Low noise and distortion - Wide operating voltage range - Fast settling time

Package: The DAC8822QCDBT is available in a small form factor package, making it suitable for space-constrained applications. It is offered in a quad flat no-lead (QFN) package.

Essence: The essence of the DAC8822QCDBT lies in its ability to convert digital signals into precise analog voltages, enabling accurate representation of digital data in the analog domain.

Packaging/Quantity: The DAC8822QCDBT is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Resolution: 16 bits
• Number of Channels: 2 (dual-channel)
• Output Voltage Range: 0V to Vref
• Operating Voltage Range: 2.7V to 5.5V
• Settling Time: <10µs
• Total Harmonic Distortion (THD): <0.01%
• Signal-to-Noise Ratio (SNR): >100dB
• Power Consumption: <10mW

Pin Configuration

The DAC8822QCDBT features a total of 32 pins, which are assigned specific functions as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VDD | Power Supply (Positive) | | 2 | VREF | Reference Voltage Input | | 3 | AGND | Analog Ground | | 4 | OUTA | Analog Output Channel A | | 5 | OUTB | Analog Output Channel B | | 6-9 | DGND | Digital Ground | | 10 | DIN | Serial Data Input | | 11 | SCLK | Serial Clock Input | | 12 | SYNC | Chip Select Input | | ... | ... | ... |

Functional Features

1. High Resolution: The DAC8822QCDBT offers a 16-bit resolution, allowing for precise and accurate analog voltage output.
2. Dual-Channel Design: With two independent channels, the DAC8822QCDBT can simultaneously convert two digital signals into analog voltages.
3. Low Noise and Distortion: The DAC8822QCDBT ensures minimal noise and distortion in the analog output, resulting in high-fidelity signal reproduction.
4. Wide Operating Voltage Range: It operates within a wide voltage range of 2.7V to 5.5V, making it compatible with various power supply configurations.
5. Fast Settling Time: The DAC8822QCDBT achieves fast settling time, enabling rapid response to changes in the input digital signal.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Dual-channel capability - Low noise and distortion - Wide operating voltage range - Fast settling time

Disadvantages: - Relatively higher cost compared to lower-end DACs - Requires careful consideration of power supply and grounding for optimal performance

Working Principles

The DAC8822QCDBT utilizes a digital-to-analog conversion technique known as pulse-width modulation (PWM). It converts the incoming digital data into a series of pulses, where the width of each pulse corresponds to the desired analog voltage level. These pulses are then filtered and smoothed to obtain a continuous analog output.

Detailed Application Field Plans

The DAC8822QCDBT finds applications in various fields, including:

1. Audio Equipment: It can be used in audio systems, such as digital audio players, amplifiers, and mixing consoles, to convert digital audio signals into analog voltages for accurate sound reproduction.
2. Industrial Automation: The DAC8822QCDBT is suitable for industrial automation applications, where precise control of analog signals is required, such as motor control, process control, and instrumentation.
3. Test and Measurement: It can be employed in test and measurement equipment, such as data acquisition systems and signal generators, to generate accurate analog signals for testing and analysis purposes.

Detailed and Complete Alternative Models

1. DAC8820QCDBT: Similar to the DAC8822QCDBT, but with a single channel instead of dual-channel capability.
2. DAC8830QCDBT: A higher-resolution variant with 18-bit resolution, offering even greater precision in analog voltage conversion.
3. DAC881