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ADS7046

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12-Bit, 3MSPS, Single-Ended Input, Small-Size Low-Power SAR ADC

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Data sheet

ADS7046

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 3000 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 3.8 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 3.6 SNR (dB) 71.2 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 12 Sample rate (max) (ksps) 3000 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 3.8 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 3.6 SNR (dB) 71.2 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
X2QFN (RUG) 8 2.25 mm² (1.5 mm × 1.5 mm)
  • 3-MSPS Throughput
  • Small Package Size:
    • X2QFN-8 Package (1.5 mm × 1.5 mm)
  • Unipolar Input Range: 0 V to AVDD
  • Wide Operating Range:
    • AVDD: 2.35 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to +125°C
  • Excellent Performance:
    • 12-Bit NMC DNL, ±0.3-LSB INL
    • 71.2-dB SINAD at 2 kHz
    • 69.5-dB SINAD at 1 MHz
  • Low Power Consumption:
    • 3.8 mW at 3 MSPS With 3.3-V AVDD
    • 115 µW at 100 kSPS With 3.3-V AVDD
    • 67 µW at 100 kSPS With 2.5-V AVDD
  • Integrated Offset Calibration
  • SPI-Compatible Serial Interface: 60 MHz
  • JESD8-7A Compliant Digital I/O
  • 3-MSPS Throughput
  • Small Package Size:
    • X2QFN-8 Package (1.5 mm × 1.5 mm)
  • Unipolar Input Range: 0 V to AVDD
  • Wide Operating Range:
    • AVDD: 2.35 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to +125°C
  • Excellent Performance:
    • 12-Bit NMC DNL, ±0.3-LSB INL
    • 71.2-dB SINAD at 2 kHz
    • 69.5-dB SINAD at 1 MHz
  • Low Power Consumption:
    • 3.8 mW at 3 MSPS With 3.3-V AVDD
    • 115 µW at 100 kSPS With 3.3-V AVDD
    • 67 µW at 100 kSPS With 2.5-V AVDD
  • Integrated Offset Calibration
  • SPI-Compatible Serial Interface: 60 MHz
  • JESD8-7A Compliant Digital I/O

The ADS7046 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 ADS7046 is a 12-bit, 3-MSPS SAR ADC that supports a single-ended input in the range of 0 V to 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 ADS7046 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7046 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.

The ADS7046 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 ADS7046 is a 12-bit, 3-MSPS SAR ADC that supports a single-ended input in the range of 0 V to 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 ADS7046 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7046 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.
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Technical documentation

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* Data sheet ADS7046 12-Bit, 3-MSPS, Single-Ended 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
Application brief Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs Oct 3, 2018

Design & development

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X2QFN (RUG) 8 Ultra Librarian
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