DAC7821IPWG4

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC7821IPWG4 is a high-performance, 12-bit digital-to-analog converter designed for various applications that require precise analog output. It converts digital data into an analog voltage or current signal, making it suitable for use in audio systems, instrumentation, industrial control, and communication equipment.

Characteristics: - Resolution: 12 bits - Output Type: Voltage or Current - Interface: Serial Peripheral Interface (SPI) - Supply Voltage: 2.7V to 5.5V - Low Power Consumption - High Accuracy and Linearity - Small Package Size

Package: The DAC7821IPWG4 is available in a small-sized TSSOP-16 package, which provides ease of integration into compact electronic designs.

Essence: The essence of the DAC7821IPWG4 lies in its ability to convert digital signals into precise analog outputs with high accuracy and linearity. This enables the device to provide reliable and stable analog signals for various applications.

Packaging/Quantity: The DAC7821IPWG4 is typically sold in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Resolution: 12 bits
• Number of Channels: 1
• Output 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: 10 µs (Max)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The DAC7821IPWG4 features a TSSOP-16 package with the following pin configuration:

Pin 1: VDD Pin 2: CS Pin 3: SCLK Pin 4: DIN Pin 5: GND Pin 6: AGND Pin 7: REF Pin 8: OUT Pin 9: NC Pin 10: NC Pin 11: NC Pin 12: NC Pin 13: NC Pin 14: NC Pin 15: NC Pin 16: VSS

Functional Features

• High-resolution digital-to-analog conversion
• Serial interface for easy integration with microcontrollers and other digital devices
• Wide operating voltage range allows flexibility in power supply selection
• Low power consumption for energy-efficient designs
• Excellent linearity and accuracy ensure precise analog output
• Fast settling time enables rapid response to input changes

Advantages and Disadvantages

Advantages: - High accuracy and linearity - Small package size for space-constrained applications - Low power consumption - Easy integration with microcontrollers - Wide operating voltage range

Disadvantages: - Limited number of channels (single-channel) - Requires an external reference voltage source

Working Principles

The DAC7821IPWG4 utilizes a digital-to-analog conversion technique known as pulse-width modulation (PWM). It accepts digital input data through the serial interface and converts it into an analog voltage or current output. The device uses an internal reference voltage to determine the output range and resolution.

Detailed Application Field Plans

The DAC7821IPWG4 finds applications in various fields, including but not limited to: - Audio Systems: Provides accurate analog signals for audio amplifiers, mixers, and equalizers. - Instrumentation: Offers precise control signals for measurement equipment, data acquisition systems, and test instruments. - Industrial Control: Enables accurate control of industrial processes, motor drives, and robotics. - Communication Equipment: Provides analog signals for modems, transceivers, and telecommunication systems.

Detailed and Complete Alternative Models

• DAC7821AP: Similar specifications but available in a PDIP-16 package.
• DAC7821E: Extended temperature range (-40°C to +125°C) version.
• DAC7821IRGZT: Available in a VQFN-16 package with exposed pad for improved thermal performance.

These alternative models offer similar functionality and performance characteristics as the DAC7821IPWG4, providing flexibility in choosing the most suitable option for specific design requirements.

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