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ADS7841-Q1

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Automotive 12-bit 4-channel serial output sampling analog-to-digital converter (ADC)

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Data sheet

ADS7841-Q1

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Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 4 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.84 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 73 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 4 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.84 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 73 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • Single Supply: 2.7 V To 5 V
  • Four-Channel Single-Ended Or Two-Channel Differential Input
  • Up To 200-kHz Conversion Rate
  • ±2 LSB Max INL and DNL
  • No Missing Codes
  • 71-dB Typ SINAD
  • Serial Interface
  • Alternate Source For MAX1247
  • Qualified for Automotive Applications
  • Single Supply: 2.7 V To 5 V
  • Four-Channel Single-Ended Or Two-Channel Differential Input
  • Up To 200-kHz Conversion Rate
  • ±2 LSB Max INL and DNL
  • No Missing Codes
  • 71-dB Typ SINAD
  • Serial Interface
  • Alternate Source For MAX1247

The ADS7841 is a 4-channel 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2 mW at a 200-kHz throughput rate and a 5-V supply. The reference voltage (VREF) can be varied between 100 mV and VCC, providing a corresponding input voltage range of 0 V to VREF. The device includes a shutdown mode that reduces power dissipation to under 15 µW. The ADS7841 is specified down to 2.7-V operation.

Low power, high speed, and on-board multiplexer make the ADS7841 ideal for battery-operated systems. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7841 is available in a SSOP-16 package.

The ADS7841 is a 4-channel 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2 mW at a 200-kHz throughput rate and a 5-V supply. The reference voltage (VREF) can be varied between 100 mV and VCC, providing a corresponding input voltage range of 0 V to VREF. The device includes a shutdown mode that reduces power dissipation to under 15 µW. The ADS7841 is specified down to 2.7-V operation.

Low power, high speed, and on-board multiplexer make the ADS7841 ideal for battery-operated systems. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7841 is available in a SSOP-16 package.
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Top documentation Type Title Format options Date
* Data sheet 12-Bit 4-Channel Serial-Output Sampling Analog-to-Digital Converter.. datasheet (Rev. C) 28 Oct 2012
User guide BOOSTXL-ADS7841-Q1 BoosterPack User's Guide 18 Dec 2017
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10 Nov 2010

Design & development

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Evaluation board

BOOSTXL-ADS7841-Q1 — ADS7841-Q1 12-bit 4-channel serial output sampling ADC BoosterPack™ plug-in module

BOOSTXL-ADS7841-Q1 is a platform for evaluating the performance of the ADS7841-Q1 4-channel, 12-bit, SAR ADC with an SPI-compatible serial interface. The evaluation kit includes the ADS7841-Q1 BoosterPack™ plug-in module and PC software that enables the user to configure the (...)

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Calculation tool

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The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — SPICE-based analog simulation program

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