DAC7615EG4

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC7615EG4 is a high-performance, 12-bit digital-to-analog converter designed for various applications that require precise analog output generation. It is commonly used in industrial control systems, data acquisition systems, and audio equipment.

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

Package: The DAC7615EG4 is available in a small-outline integrated circuit (SOIC) package. This package provides ease of handling and compatibility with standard PCB manufacturing processes.

Essence: The DAC7615EG4 is designed to convert digital signals into precise analog voltages. It utilizes advanced digital-to-analog conversion techniques to ensure accurate and reliable output.

Packaging/Quantity: The DAC7615EG4 is typically sold in reels containing 250 units per reel.

Specifications

• Resolution: 12 bits
• Monotonicity: Guaranteed
• Integral Nonlinearity (INL): ±1 LSB (max)
• Differential Nonlinearity (DNL): ±0.5 LSB (max)
• Output Voltage Range: 0V to Vref
• Reference Voltage (Vref): External, user-defined
• Output Current: ±1 mA (max)
• Power Consumption: 0.6 mW (typ)
• Output Settling Time: 10 µs (max)

Pin Configuration

The DAC7615EG4 features a 16-pin SOIC package with the following pin configuration:

┌───┬───┐ │ 1 │ 2 │ │ 3 │ 4 │ │ 5 │ 6 │ │ 7 │ 8 │ │ 9 │10 │ │11 │12 │ │13 │14 │ │15 │16 │ └───┴───┘

Pin Description: 1. VDD - Positive Power Supply 2. VSS - Ground 3. CS - Chip Select (Active Low) 4. SCLK - Serial Clock Input 5. DIN - Serial Data Input 6. DOUT - Serial Data Output 7. LDAC - Load DAC Register (Active Low) 8. REF - Reference Voltage Input 9. AGND - Analog Ground 10. OUT - Analog Output 11-16. NC - No Connection

Functional Features

• High-resolution digital-to-analog conversion
• SPI-compatible serial interface for easy integration with microcontrollers and other digital devices
• Guaranteed monotonicity ensures accurate output representation
• Low power consumption for energy-efficient applications
• Fast settling time allows for rapid response in dynamic systems
• Wide operating temperature range enables reliable performance in harsh environments

Advantages and Disadvantages

Advantages: - High resolution provides precise analog output - Compatibility with standard digital interfaces simplifies integration - Guaranteed monotonicity ensures accuracy - Low power consumption for energy efficiency - Fast settling time allows for quick response

Disadvantages: - Limited to single-channel output - External reference voltage required

Working Principles

The DAC7615EG4 utilizes a digital-to-analog conversion technique known as pulse-width modulation (PWM). It converts the input digital data into a corresponding analog voltage by varying the width of the output pulses. The reference voltage determines the maximum output voltage, and the resolution determines the number of discrete output levels.

The digital input data is received through the serial interface and stored in an internal register. Upon receiving a load command, the DAC updates its output voltage based on the stored digital value. The output voltage settles to the desired level within a specified settling time.

Detailed Application Field Plans

The DAC7615EG4 finds applications in various fields, including:

1. Industrial Control Systems: Used for precise control of analog actuators, such as valves and motors, in industrial automation systems.
2. Data Acquisition Systems: Provides accurate analog signals for measurement and data acquisition applications, such as sensor interfacing and signal conditioning.
3. Audio Equipment: Enables high-fidelity audio reproduction by converting digital audio signals into analog voltages for amplification and playback.

Detailed and Complete Alternative Models

1. DAC7612: 12-bit, dual-channel digital-to-analog converter with similar features and performance characteristics.
2. DAC7616: 16-bit, single-channel digital-to-analog converter offering higher resolution but with slightly slower settling time.
3. DAC7618: 18-bit, single-channel digital-to-analog converter providing