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SM73201

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16-Bit, 250-kSPS, 1-Ch SAR ADC with fully differential input

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Data sheet

SM73201

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 250 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 5.3 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.2 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 250 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 5.3 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.2 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Renewable Energy Grade
  • Specified Performance from 50 to 250 kSPS
  • Separate Digital Input/Output Supply
  • True Differential Input
  • External Voltage Reference Range of +0.5V to VA
  • Wide Input Common-Mode Voltage Range of 0V to VA
  • SPI/QSPI/MICROWIRE Compatible Serial Interface
  • Operating Temperature Range of −40°C to +85°C
  • Small VSSOP-10 Package

Key Specifications

  • Conversion Rate: 50 kSPS to 250 kSPS
  • SNR: 93.2 dBc
  • SFDR: 108 dBc
  • THD: −104 dBc
  • Power Consumption
    • 200 kSPS, 5V: 5.3 mW
    • 250 kSPS, 5V: 5.8 mW
    • Power-Down, 5V: 10 μW

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  • Renewable Energy Grade
  • Specified Performance from 50 to 250 kSPS
  • Separate Digital Input/Output Supply
  • True Differential Input
  • External Voltage Reference Range of +0.5V to VA
  • Wide Input Common-Mode Voltage Range of 0V to VA
  • SPI/QSPI/MICROWIRE Compatible Serial Interface
  • Operating Temperature Range of −40°C to +85°C
  • Small VSSOP-10 Package

Key Specifications

  • Conversion Rate: 50 kSPS to 250 kSPS
  • SNR: 93.2 dBc
  • SFDR: 108 dBc
  • THD: −104 dBc
  • Power Consumption
    • 200 kSPS, 5V: 5.3 mW
    • 250 kSPS, 5V: 5.8 mW
    • Power-Down, 5V: 10 μW

All trademarks are the property of their respective owners.

The SM73201 is a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the SM73201 suitable for noisy environments.

The SM73201 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V. This allows a system designer to maximize performance and minimize power consumption by operating the analog portion of the ADC at a VA of +5V while interfacing with a +3.3V controller. The serial data output is binary 2's complement and is SPI compatible.

The performance of the SM73201 is specified over temperature at clock rates of 1 MHz to 5 MHz and reference voltages of +2.5V to +5.5V. The SM73201 is available in a small 10-lead VSSOP package. The high accuracy, differential input, low power consumption, and small size make the SM73201 ideal for direct connection to bridge sensors and transducers in battery operated systems or remote data acquisition applications.

The SM73201 is a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the SM73201 suitable for noisy environments.

The SM73201 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V. This allows a system designer to maximize performance and minimize power consumption by operating the analog portion of the ADC at a VA of +5V while interfacing with a +3.3V controller. The serial data output is binary 2's complement and is SPI compatible.

The performance of the SM73201 is specified over temperature at clock rates of 1 MHz to 5 MHz and reference voltages of +2.5V to +5.5V. The SM73201 is available in a small 10-lead VSSOP package. The high accuracy, differential input, low power consumption, and small size make the SM73201 ideal for direct connection to bridge sensors and transducers in battery operated systems or remote data acquisition applications.
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* Data sheet SM73201 16-Bit, 50 to 250 kSPS, Differential Input, MicroPower ADC datasheet (Rev. B) Mar 19, 2013
White paper Voltage-reference impact on total harmonic distortion Aug 1, 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015

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