{"product_id":"ad7705-dual-16-bit-adc-data-acquisition-module-spi-programmable-gain","title":"AD7705 Dual 16-Bit ADC Data Acquisition Module SPI PGA","description":"\n\u003ch2\u003eAD7705 Dual 16-Bit ADC Data Acquisition Module with Programmable Gain\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAD7705 Dual 16-Bit ADC Data Acquisition Module\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16-Bit Dual-Channel ADC:\u003c\/strong\u003e Two independent differential input channels with true 16-bit resolution for highly accurate analog signal conversion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable Gain Amplifier (PGA):\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPI-Compatible Interface:\u003c\/strong\u003e Standard 3-wire SPI serial interface ensures easy integration with Arduino, Raspberry Pi, STM32, and other popular microcontrollers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Noise Sigma-Delta Architecture:\u003c\/strong\u003e The sigma-delta converter delivers stable, reliable readings even in electrically noisy environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Supply Voltage Range:\u003c\/strong\u003e Compatible with both 3.3V and 5V systems for maximum versatility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Module Design:\u003c\/strong\u003e Onboard decoupling capacitors and clean PCB layout minimize interference and simplify prototyping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Application Range:\u003c\/strong\u003e Perfect for weight scales, temperature measurement, pressure sensors, industrial sensing, and precision data acquisition systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIC: AD7705 (or compatible TM7705)\u003c\/li\u003e\n  \u003cli\u003eResolution: 16-bit\u003c\/li\u003e\n  \u003cli\u003eInput Channels: 2 differential (dual)\u003c\/li\u003e\n  \u003cli\u003eProgrammable Gain: 1 \/ 2 \/ 4 \/ 8 \/ 16 \/ 32 \/ 64 \/ 128\u003c\/li\u003e\n  \u003cli\u003eInterface: SPI (SCLK, DIN, DOUT, CS)\u003c\/li\u003e\n  \u003cli\u003eSupply Voltage: 3.3V – 5V\u003c\/li\u003e\n  \u003cli\u003eOutput Data Rate: Programmable\u003c\/li\u003e\n  \u003cli\u003eForm Factor: Breakout\/Module PCB\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × AD7705 Dual 16-Bit ADC Data Acquisition Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi sensor projects\u003c\/li\u003e\n  \u003cli\u003eIndustrial and laboratory instrumentation\u003c\/li\u003e\n  \u003cli\u003ePrecision weight and force measurement\u003c\/li\u003e\n  \u003cli\u003eTemperature and pressure data logging\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for more components for your DIY projects? Check out our \u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads for DIY Making\u003c\/a\u003e or browse our \u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm for DIY Projects\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the AD7705 Dual 16-Bit ADC Data Acquisition Module used for?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the programmable gain on the AD7705 module and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the AD7705 module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between AD7705 and TM7705?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the AD7705 Dual 16-Bit ADC Data Acquisition Module used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"What is the programmable gain on the AD7705 module and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Is the AD7705 module compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between AD7705 and TM7705?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"AD7705 Dual 16-Bit ADC Data Acquisition Module SPI PGA\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/ad7705-dual-16-bit-adc-data-acquisition-module-spi-programmable-gain\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"Default Title","offer_id":54265150570806,"sku":"\u003cnone\u003e","price":4.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/Sc43116667aef4c359e6290d7606bf5caC_2e528ede-a8de-47ae-b81d-1d6a54ecb01b.webp?v=1784714715","url":"https:\/\/zpaxo.com\/products\/ad7705-dual-16-bit-adc-data-acquisition-module-spi-programmable-gain","provider":"Zpaxo","version":"1.0","type":"link"}