AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo Default Title

AD7705 Dual 16-Bit ADC Data Acquisition Module SPI PGA

Default Title
$4.84
$4.84 $5.99
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AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo Default Title
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo Default Title
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo Default Title
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo
  • AD7705 Dual 16 bit ADC Data Acquisition Module Input Gain Programmable SPI Interface TM7705 Zpaxo
AD7705 Dual 16-Bit ADC Data Acquisition Module SPI PGA

AD7705 Dual 16-Bit ADC Data Acquisition Module SPI PGA

$4.84
$4.84 $5.99
Default TitleDefault Title

AD7705 Dual 16-Bit ADC Data Acquisition Module with Programmable Gain

The AD7705 Dual 16-Bit ADC Data Acquisition Module is a high-precision analog-to-digital converter board designed for engineers, hobbyists, and electronics developers who need accurate, low-noise signal measurement. Built around the industry-standard AD7705 chip, this compact module delivers true 16-bit resolution across two independent input channels, making it ideal for data logging, sensor interfacing, and instrumentation projects.

Key Features

  • 16-Bit Dual-Channel ADC: Two independent differential input channels with true 16-bit resolution for highly accurate analog signal conversion.
  • Programmable Gain Amplifier (PGA): Selectable gain settings (1, 2, 4, 8, 16, 32, 64, 128) allow you to tailor the input range to match your signal source — from millivolt-level sensors to full-scale analog inputs.
  • SPI-Compatible Interface: Standard 3-wire SPI serial interface ensures easy integration with Arduino, Raspberry Pi, STM32, and other popular microcontrollers.
  • Low-Noise Sigma-Delta Architecture: The sigma-delta converter delivers stable, reliable readings even in electrically noisy environments.
  • Wide Supply Voltage Range: Compatible with both 3.3V and 5V systems for maximum versatility.
  • Compact Module Design: Onboard decoupling capacitors and clean PCB layout minimize interference and simplify prototyping.
  • Broad Application Range: Perfect for weight scales, temperature measurement, pressure sensors, industrial sensing, and precision data acquisition systems.

Technical Specifications

  • IC: AD7705 (or compatible TM7705)
  • Resolution: 16-bit
  • Input Channels: 2 differential (dual)
  • Programmable Gain: 1 / 2 / 4 / 8 / 16 / 32 / 64 / 128
  • Interface: SPI (SCLK, DIN, DOUT, CS)
  • Supply Voltage: 3.3V – 5V
  • Output Data Rate: Programmable
  • Form Factor: Breakout/Module PCB

What's in the Box?

  • 1 × AD7705 Dual 16-Bit ADC Data Acquisition Module

Perfect For

  • Arduino & Raspberry Pi sensor projects
  • Industrial and laboratory instrumentation
  • Precision weight and force measurement
  • Temperature and pressure data logging
  • DIY electronics and prototyping

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Frequently Asked Questions

Q: What is the AD7705 Dual 16-Bit ADC Data Acquisition Module used for?

A: The AD7705 module is used for high-precision analog-to-digital signal conversion in electronics projects. It is commonly used with microcontrollers such as Arduino and Raspberry Pi for applications including sensor reading, data logging, weight measurement, temperature sensing, and industrial instrumentation.

Q: What is the programmable gain on the AD7705 module and why does it matter?

A: The programmable gain amplifier (PGA) on this module supports gain settings of 1, 2, 4, 8, 16, 32, 64, and 128. This allows you to amplify small input signals — such as those from a load cell or thermocouple — to fit within the ADC's full input range, resulting in more accurate and stable readings.

Q: Is the AD7705 module compatible with Arduino and Raspberry Pi?

A: Yes. The module uses a standard SPI interface (SCLK, DIN, DOUT, CS) and operates at 3.3V or 5V, making it directly compatible with Arduino, Raspberry Pi, STM32, ESP32, and most other popular development boards. Many open-source libraries and example sketches are available online.

Q: What is the difference between AD7705 and TM7705?

A: The TM7705 is a pin-compatible alternative to the AD7705, offering the same dual 16-bit ADC functionality, programmable gain, and SPI interface. Modules labeled AD7705 or TM7705 are functionally interchangeable for most applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

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