DAC8734SRHAR

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC8734SRHAR is a high-performance, quad-channel, 16-bit digital-to-analog converter designed for precision industrial applications. It provides accurate conversion of digital data into analog signals.

Characteristics: - Quad-channel: The DAC8734SRHAR consists of four independent channels, allowing simultaneous conversion of multiple digital inputs. - High resolution: With a 16-bit resolution, it offers precise and fine-grained analog output. - Low noise: The DAC8734SRHAR ensures low noise performance, resulting in clean and accurate analog signals. - Wide voltage range: It supports a wide power supply voltage range, making it suitable for various industrial applications. - High speed: The DAC8734SRHAR operates at high-speed conversion rates, enabling real-time signal generation.

Package: The DAC8734SRHAR comes in a small outline integrated circuit (SOIC) package, which provides ease of integration into electronic systems.

Essence: The essence of the DAC8734SRHAR lies in its ability to convert digital data into precise analog signals, making it an essential component in industrial control systems and measurement equipment.

Packaging/Quantity: The DAC8734SRHAR is typically available in reels containing 250 units per reel.

Specifications

• Resolution: 16 bits
• Number of Channels: 4
• Output Type: Voltage
• Power Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Conversion Rate: Up to 1 MSPS (Mega Samples Per Second)
• Interface: Serial Peripheral Interface (SPI)

Detailed Pin Configuration

The DAC8734SRHAR has a total of 20 pins, which are assigned as follows:

1. VDD: Power supply voltage
2. VREF: Reference voltage input
3. AGND: Analog ground
4. OUTA: Analog output channel A
5. OUTB: Analog output channel B
6. OUTC: Analog output channel C
7. OUTD: Analog output channel D
8. DGND: Digital ground
9. DIN: Serial data input
10. SCLK: Serial clock input
11. SYNC: Chip select input 12-20. NC: No connection

Functional Features

• Simultaneous Update: The DAC8734SRHAR allows simultaneous update of all four channels, ensuring synchronized analog outputs.
• Internal Reference: It includes an internal reference voltage source, eliminating the need for an external reference.
• Power-On Reset: The device incorporates a power-on reset circuitry, ensuring reliable operation during power-up.
• Low Glitch Energy: The DAC8734SRHAR minimizes glitch energy during transitions, reducing unwanted noise in the analog output.

Advantages and Disadvantages

Advantages: - High resolution and accuracy - Low noise performance - Wide voltage range - Simultaneous update of all channels - Internal reference voltage source

Disadvantages: - Relatively high cost compared to lower-end DACs - Limited number of channels (4)

Working Principles

The DAC8734SRHAR operates based on the principle of converting digital data into corresponding analog voltages. It utilizes a combination of digital-to-analog conversion techniques, including resistor ladder networks and current steering, to achieve accurate and precise analog outputs.

The digital input data is received through the serial interface and processed internally to generate the desired analog output voltages. The internal reference voltage ensures the accuracy of the conversion process. The simultaneous update feature allows all four channels to be updated simultaneously, ensuring synchronized analog outputs.

Detailed Application Field Plans

The DAC8734SRHAR finds extensive application in various industrial fields, including:

1. Industrial Automation: It is used in control systems for precise analog signal generation, such as motor control, robotics, and process automation.
2. Test and Measurement Equipment: The DAC8734SRHAR is employed in high-precision measurement instruments, such as data acquisition systems, oscilloscopes, and signal generators.
3. Audio Equipment: It can be utilized in audio processing applications, such as digital audio workstations, mixing consoles, and audio effects processors.
4. Medical Devices: The DAC8734SRHAR is suitable for medical equipment requiring accurate analog signal generation, such as patient monitoring systems and diagnostic instruments.

Detailed and Complete Alternative Models

1. DAC8740SRHAR: Similar to the DAC8734SRHAR, but with 8 channels instead of 4.
2. DAC8724SRHAR: A lower-cost alternative with 4 channels and 12-bit resolution.
3. DAC8760SRHAR: Offers higher resolution (20 bits)