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ADS7041

ACTIVE

Ultra-low power and ultra-small size SAR ADC, 10 bit, 1 MSPS, single ended

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Data sheet

ADS7041

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 10 Sample rate (max) (ksps) 1000 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) 0.189 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 3.6 SNR (dB) 61 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 10 Sample rate (max) (ksps) 1000 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) 0.189 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 3.6 SNR (dB) 61 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
VSSOP (DCU) 8 6.2 mm² 2 x 3.1 X2QFN (RUG) 8 2.25 mm² 1.5 x 1.5
  • Industry’s First SAR ADC with Nanowatt Power Consumption:
    • 189 µW at 1 MSPS with 1.8-V AVDD
    • 600 µW at 1 MSPS with 3-V AVDD
    • 60 µW at 100 kSPS with 3-V AVDD
    • Less than 1 µW at 1 kSPS with 3-V AVDD
  • Industry’s Smallest SAR ADC:
    • X2QFN-8 Package with 2.25-mm2 Footprint
  • 1-MSPS Throughput with Zero Data Latency
  • Wide Operating Range:
    • AVDD: 1.65 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:
    • 10-Bit Resolution with NMC
    • ±0.8-LSB (Max) INL, ±0.7-LSB (Max) DNL
    • 61-dB SNR with 3-V AVDD
    • –75-dB THD with 3-V AVDD
  • Unipolar Input Range: 0 V to AVDD
  • Integrated Offset Calibration
  • SPI™-Compatible Serial Interface: 14 MHz
  • JESD8-7A Compliant Digital I/O
  • Industry’s First SAR ADC with Nanowatt Power Consumption:
    • 189 µW at 1 MSPS with 1.8-V AVDD
    • 600 µW at 1 MSPS with 3-V AVDD
    • 60 µW at 100 kSPS with 3-V AVDD
    • Less than 1 µW at 1 kSPS with 3-V AVDD
  • Industry’s Smallest SAR ADC:
    • X2QFN-8 Package with 2.25-mm2 Footprint
  • 1-MSPS Throughput with Zero Data Latency
  • Wide Operating Range:
    • AVDD: 1.65 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:
    • 10-Bit Resolution with NMC
    • ±0.8-LSB (Max) INL, ±0.7-LSB (Max) DNL
    • 61-dB SNR with 3-V AVDD
    • –75-dB THD with 3-V AVDD
  • Unipolar Input Range: 0 V to AVDD
  • Integrated Offset Calibration
  • SPI™-Compatible Serial Interface: 14 MHz
  • JESD8-7A Compliant Digital I/O

The ADS7041 is a 10-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.65 V to 3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The ADS7041 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7041 is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.

The ADS7041 is a 10-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.65 V to 3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The ADS7041 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7041 is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.
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* Data sheet ADS7041 Ultra-Low Power, Ultra-Small Size, 10-Bit, 1-MSPS, SAR ADC datasheet (Rev. C) PDF | HTML 10 Dec 2015
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML 29 Oct 2025
Analog Design Journal Low-power sensor measurements: 3.3-V, 1-ksps, 12-bit, single-ended, single-suppl (Rev. B) PDF | HTML 26 Sep 2024
Circuit design Driving a SAR ADC directly without a front-end buffer circuit (Rev. B) PDF | HTML 23 Sep 2024
Circuit design High-side current shunt monitor circuit to 3-V single-ended ADC (Rev. A) PDF | HTML 20 Sep 2024
Circuit design Low-power sensor measurements: 3.3-V, 1-ksps, 12-bit, single-ended, dual-supply (Rev. B) PDF | HTML 17 Sep 2024
Application brief Optimized Sensor Measurement: Driving a SAR ADC Input Without a Driver Amplifier 01 Sep 2017
Application note Low-Cost, Low-Power, Small 14-bit AFE: Interleaved ADCs Scalable up to 7.5 MSPS 26 May 2017
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015

Design & development

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User guide: PDF | HTML
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Simulation model

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SBAM243.TSC (227 KB) - TINA-TI Reference Design
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SBAM196.ZIP (26 KB) - IBIS Model
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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VSSOP (DCU) 8 Ultra Librarian
X2QFN (RUG) 8 Ultra Librarian
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