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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 mm × 6 mm) VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • 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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* Data sheet Dual, 500kSPS, 16-Bit, 2+2 Channel, Simultaneous Sampling A/D Converter datasheet (Rev. E) Aug 14, 2007
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML Oct 29, 2025
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
Application note Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) May 18, 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar 17, 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) Nov 10, 2010
User guide 5-6 K Interface Board User's Guide (Rev. C) Mar 20, 2009
Application note Interfacing the ADS8361 to TMS470 Processors Jul 19, 2006
Analog design Journal Using the ADS8361 with the MSP430 USI port Jul 17, 2006
More literature ADS8361EVM Readme Page Thank You Letter Mar 3, 2005
Application note Interfacing the ADS8361 to the TMS320F2812 DSP Feb 10, 2003
Application note Interfacing the ADS8361 to the TMS320C6711 DSP Feb 4, 2003
Application note Interfacing the ADS8361 to the TMS320VC5416 DSP Dec 5, 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 (...)

Supported products & hardware
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.

Supported products & hardware
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.
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SSOP (DBQ) 24 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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