The ADS7047 device belongs to a family of pin-to-pin compatible, high-speed, low-power, single-channel successive-approximation register (SAR) type analog-to-digital converters (ADCs). The device family includes multiple resolutions, throughputs, and analog input variants (see Table 1 for a list of devices).
The ADS7047 is a 12-bit, 3-MSPS SAR ADC that supports fully-differential inputs in the range of ±AVDD, for AVDD in the range of 2.35 V to 3.6 V.
The internal offset calibration feature maintains excellent offset specifications over the entire AVDD and temperature operating range.
The device supports an SPI-compatible serial interface that is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for both conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interfacing to a variety of host controllers. The ADS7047 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).
The ADS7047 is available in an 8-pin, small, X2QFN package and is specified over the extended industrial temperature range (–40°C to +125°C). The small form-factor and extremely-low power consumption make this device suitable for space-constrained and battery-powered applications that require high-speed, high-resolution data acquisition.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ADS7047 12-Bit, 3-MSPS, Differential Input, Small-Size, Low-Power SAR ADC datasheet | PDF | HTML | Dec 6, 2017 |
| Application brief | Precision ADCs in Servo Drives (Rev. A) | PDF | HTML | Oct 29, 2025 | |
| Product overview | Precision ADCs for Motor Encoders and Position Sensing (Rev. A) | PDF | HTML | Oct 28, 2025 | |
| Circuit design | Single-ended to diff. signal conversion using an op amp & FDA for unipolar signa (Rev. B) | PDF | HTML | Sep 24, 2024 | |
| Circuit design | Single-ended-to-differential circuit using an op amp and FDA for bipolar signals (Rev. B) | PDF | HTML | Sep 19, 2024 | |
| Application brief | Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs | Oct 3, 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| X2QFN (RUG) | 8 | Ultra Librarian |
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