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ADS8361

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16-Bit 500 kSPS 2 ADCs, 4ch, serial out

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Data sheet

ADS8361

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 150 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 83 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 500 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 150 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 83 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
SSOP (DBQ) 24 51.9 mm² 8.65 x 6 VQFN (RHB) 32 25 mm² 5 x 5
  • 2 SIMULTANEOUS 16-BIT DACs
  • 4 FULLY DIFFERENTIAL INPUT CHANNELS
  • 2 µs THROUGHPUT PER CHANNEL
  • 4 µs TOTAL THROUGHPUT FOR FOUR CHANNELS
  • LOW POWER: 150mW
  • INTERNAL REFERENCE
  • FLEXIBLE SERIAL INTERFACE
  • 16-BIT UPGRADE TO THE 12-BIT ADS7861
  • PIN COMPATIBLE WITH THE ADS7861
  • OPERATING TEMPERATURE RANGE: -40°C to +125°C
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.
  • 2 SIMULTANEOUS 16-BIT DACs
  • 4 FULLY DIFFERENTIAL INPUT CHANNELS
  • 2 µs THROUGHPUT PER CHANNEL
  • 4 µs TOTAL THROUGHPUT FOR FOUR CHANNELS
  • LOW POWER: 150mW
  • INTERNAL REFERENCE
  • FLEXIBLE SERIAL INTERFACE
  • 16-BIT UPGRADE TO THE 12-BIT ADS7861
  • PIN COMPATIBLE WITH THE ADS7861
  • OPERATING TEMPERATURE RANGE: -40°C to +125°C
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.

The ADS8361 is a dual, 16-bit, 500kSPS, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differentially to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz, which is important in high-noise environments.

The ADS8361 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 16-bit word. The ADS8361 is offered in SSOP-24 and QFN-32 (5x5) packages and is fully specified over the -40°C to +125°C operating range.

The ADS8361 is a dual, 16-bit, 500kSPS, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differentially to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz, which is important in high-noise environments.

The ADS8361 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 16-bit word. The ADS8361 is offered in SSOP-24 and QFN-32 (5x5) packages and is fully specified over the -40°C to +125°C operating range.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet Dual, 500kSPS, 16-Bit, 2+2 Channel, Simultaneous Sampling A/D Converter datasheet (Rev. E) 14 Aug 2007
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML 29 Oct 2025
White paper Voltage-reference impact on total harmonic distortion 01 Aug 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Application note Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) 18 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
User guide 5-6 K Interface Board User's Guide (Rev. C) 20 Mar 2009
Application note Interfacing the ADS8361 to TMS470 Processors 19 Jul 2006
Analog Design Journal Using the ADS8361 with the MSP430 USI port 17 Jul 2006
More literature ADS8361EVM Readme Page Thank You Letter 03 Mar 2005
Application note Interfacing the ADS8361 to the TMS320F2812 DSP 10 Feb 2003
Application note Interfacing the ADS8361 to the TMS320C6711 DSP 04 Feb 2003
Application note Interfacing the ADS8361 to the TMS320VC5416 DSP 05 Dec 2002

Design & development

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Evaluation board

5-6KINTERFACE — 5-6K Interface Evaluation Module

The interface board consists of two signal conditioning sites, two serial EVM sites, and a parallel EVM site. Regardless of the interface type, all EVMs compatible with the 5-6K Interface Board have a standard analog interface and standard power connector. Three position screw terminals J1 and J2 (...)

User guide: PDF
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Evaluation board

ADS8361EVM — ADS8361 Evaluation Module

The ADS8361EVM uses a circuit board designated ADS78-8361EVM. This EVM board will accept either the ADS7861 (12bit) or the ADS8361 (16bit) ADC. The ADS7861 operates from 5 volts to supply AVdd & DVdd, while the ADS8361 operates from 2.7V to 3.6V to supply AVdd & DVdd. The evaluation board has a (...)

User guide: PDF
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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Calculation tool

JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

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Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

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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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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SSOP (DBQ) 24 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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