Precision Analog Control for Complex Projects: Power Your I2C Applications with the 7Semi DAC7578 Breakout
The 7Semi DAC Breakout – 8 Channel 12-bit I2C DAC is crafted for engineers and developers seeking refined voltage control in embedded systems, automation, and instrumentation applications. Built around the reliable Texas Instruments DAC7578, this module delivers eight independent 12-bit digital-to-analog converter (DAC) channels—each capable of producing smooth, high-resolution analog output signals. Designed for seamless integration with microcontrollers and single-board computers such as Arduino, STM32, ESP32, and Raspberry Pi, it enables precise voltage manipulation across all outputs from a single I2C connection.
With native support for both 3.3V and 5V logic levels, and the ability to operate with flexible voltage references, this breakout board offers robust compatibility with a wide range of platforms. The power-on-reset (POR) function ensures safe initialisation of all channels, while its monolithic design architecture guarantees low glitch energy and excellent linearity. Whether you're designing a signal generator, controlling actuators, or fine-tuning analog components in a measurement system, the 7Semi DAC7578 provides stable, reliable performance in a compact, breadboard-friendly footprint.
Key Features
-
8 Independent 12-bit DAC Channels
Generate eight high-precision analog signals independently using a single board. -
I2C-Compatible Interface
Standard I2C communication up to 3.4 MHz, compatible with most MCU and SBC platforms. -
Dual Voltage Support (3.3V / 5V)
Operates with both 3.3V and 5V systems, ensuring compatibility without additional components. -
Customisable Reference Voltage (VRef)
Default VRef matches power supply; configurable for custom references like 4.095V for enhanced accuracy. -
Power-On Reset (POR) Circuitry
Ensures all outputs start at known, safe states until configured by software. -
Low Glitch Output with High Linearity
Monolithic DAC design reduces output transients, providing clean analog signals for precision applications. -
Breadboard-Friendly Design
Compact PCB layout suitable for quick prototyping and embedded system integration. -
Supports Multi-Device I2C Configuration
Multiple DAC7578 boards can operate on the same I2C bus, expanding output capabilities easily.
- Glitch Energy:
- 0.15nV-s
- Ultra-Low Power Operation:
- 0.13mA/ch at 5V
- Operating Voltage:
- +2.7V to +5.5V
- Ripple Suppression:
- > 75% (typical at 100–500 kHz switching noise)
- Operating Temperature:
- -40°C to +125°C
- Interface:
- I2C
