AD7705 Dual 16-Bit ADC Data Acquisition Module | SPI Interface
AD7705 Dual 16-Bit ADC Data Acquisition Module | SPI Interface
AD7705 Dual 16-Bit ADC Data Acquisition Module with Programmable Gain & SPI Interface
Upgrade your electronics projects with this high-precision AD7705 Dual 16-Bit Analog-to-Digital Converter (ADC) Data Acquisition Module. Featuring a programmable input gain amplifier and a standard SPI communication interface, this module is ideal for microcontroller-based designs, sensor signal conditioning, industrial measurement, and laboratory data logging applications.
Built around the trusted AD7705 chip, this compact SMD module delivers exceptional resolution and accuracy, making it suitable for a wide range of precision measurement tasks — from temperature sensing and pressure monitoring to scientific instrumentation and embedded system development.
Made in Mainland China.
Key Features
- Dual-Channel 16-Bit ADC: Two fully differential input channels with true 16-bit resolution for high-accuracy signal acquisition.
- Programmable Gain Amplifier (PGA): Selectable input gain settings allow you to adapt to a wide range of input signal amplitudes without external components.
- SPI Interface: Standard Serial Peripheral Interface (SPI) ensures straightforward integration with Arduino, STM32, Raspberry Pi, and other popular platforms.
- Wide Operating Temperature Range: Rated from -40°C to +80°C, making it reliable for both indoor lab use and more demanding environments.
- SMD Package: Compact surface-mount design keeps your PCB footprint small and tidy.
- New Condition: Each unit is brand new and ready for immediate integration into your project.
- No High-Concern Chemicals: Free from restricted substances for safer handling and compliance.
Specifications
- Chip: AD7705
- Resolution: 16-Bit (Dual Channel)
- Interface: SPI
- Input Type: Fully Differential
- Package: SMD
- Operating Temperature: -40°C to +80°C
- Quantity: 1 Module per order
- Condition: New
- Origin: Mainland China
Who Is This For?
This module is perfect for electronics hobbyists, engineers, and makers who need reliable, high-resolution analog signal acquisition in projects involving sensors, data loggers, test equipment, or embedded control systems. Its SPI compatibility means minimal wiring and fast setup with most modern microcontrollers.
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Frequently Asked Questions
Q: What microcontrollers is the AD7705 ADC data acquisition module compatible with?
A: The AD7705 module uses a standard SPI interface, making it compatible with a wide range of microcontrollers including Arduino (Uno, Mega, Nano), STM32, ESP32, Raspberry Pi, and most other platforms that support SPI communication. Simply connect the SPI pins (MOSI, MISO, SCK, CS) and power the module accordingly.
Q: What is the purpose of the programmable input gain on this ADC module?
A: The programmable gain amplifier (PGA) built into the AD7705 allows you to digitally set the amplification level for the analog input signal. This means you can accurately measure both very small and larger signals without needing external op-amp circuitry, greatly simplifying your circuit design and improving measurement precision.
Q: How many analog input channels does the AD7705 module have?
A: The AD7705 provides two fully differential analog input channels. Each channel can be independently configured for gain and data rate, allowing simultaneous or alternating acquisition from two separate signal sources.
Q: Is this module suitable for industrial or outdoor applications?
A: Yes. With an operating temperature range of -40°C to +80°C, this ADC module is well-suited for both standard lab environments and more demanding applications where temperature variation is a factor.