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ADS7950-Q1

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Automotive, 12-bit, 1-MSPS, 4-channel, single-ended SAR ADC

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Data sheet

ADS7950-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 4 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable 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) 14.5 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 71.7 Digital supply (min) (V) 1.7 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 4 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable 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) 14.5 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 71.7 Digital supply (min) (V) 1.7 Digital supply (max) (V) 5.25
TSSOP (DBT) 30 49.92 mm² 7.8 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Tested with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Product Family:
    • 8-, 10-, and 12-Bit Resolution
    • 4-, 8-, 12-Channel Devices Share 16 Channel Footprint
  • 1-MHz Sample-Rate Serial Devices
  • Analog Supply Range: 2.7 V to 5.25 V
  • I/O Supply Range: 1.7 V to 5.25 V
  • Two SW-Selectable Unipolar, Input Ranges:
    • (0 V to 2.5 V) or (0 V to 5 V)
  • Auto and Manual Modes for Channel Selection
  • Two Programmable Alarm Levels per Channel
  • Four Individually Configurable GPIOs
  • Typical Power Dissipation: 14.5 mW (V(+VA) = 5 V,
    V(+VBD) = 3 V) at 1 MSPS
  • Power-Down Current (1 μA)
  • 30-Pin and 38-Pin TSSOP Package
  • Qualified for Automotive Applications
  • AEC-Q100 Tested with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Product Family:
    • 8-, 10-, and 12-Bit Resolution
    • 4-, 8-, 12-Channel Devices Share 16 Channel Footprint
  • 1-MHz Sample-Rate Serial Devices
  • Analog Supply Range: 2.7 V to 5.25 V
  • I/O Supply Range: 1.7 V to 5.25 V
  • Two SW-Selectable Unipolar, Input Ranges:
    • (0 V to 2.5 V) or (0 V to 5 V)
  • Auto and Manual Modes for Channel Selection
  • Two Programmable Alarm Levels per Channel
  • Four Individually Configurable GPIOs
  • Typical Power Dissipation: 14.5 mW (V(+VA) = 5 V,
    V(+VBD) = 3 V) at 1 MSPS
  • Power-Down Current (1 μA)
  • 30-Pin and 38-Pin TSSOP Package

The ADS79xx-Q1 device family consists of multichannel 8-bit, 10-bit and 12-bit analog-to-digital converters (ADCs). The devices include a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold. Multiple features and great performance makes the ADS79xx-Q1 device useful for wide variety of applications where multiple channels should be monitored.

The ADS79xx-Q1 device works on a wide analog-supply range from 2.7 V to 5.25 V. These devices are suitable for battery-powered and isolated power-supply applications because of very-low power consumption.

The 4- and 8-channel devices are available in 30-pin TSSOP package. The 12- and 16-channel devices are available in 38-pin TSSOP package.

SPI is a trademark of Motorola Inc.
All other trademarks are the property of their respective owners.

The ADS79xx-Q1 device family consists of multichannel 8-bit, 10-bit and 12-bit analog-to-digital converters (ADCs). The devices include a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold. Multiple features and great performance makes the ADS79xx-Q1 device useful for wide variety of applications where multiple channels should be monitored.

The ADS79xx-Q1 device works on a wide analog-supply range from 2.7 V to 5.25 V. These devices are suitable for battery-powered and isolated power-supply applications because of very-low power consumption.

The 4- and 8-channel devices are available in 30-pin TSSOP package. The 12- and 16-channel devices are available in 38-pin TSSOP package.

SPI is a trademark of Motorola Inc.
All other trademarks are the property of their respective owners.
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Technical documentation

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Type Title Date
* Data sheet ADS79xx-Q1 8-, 10-, and 12-Bit, 1-MSPS, 4-, 8-, 12-, and 16-Channel, Single-Ended, Micropower, Serial Interface, Analog-to-Digital Converters datasheet (Rev. A) PDF | HTML 29 Aug 2014
Functional safety information ADS7950-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 28 Jan 2021
Application note Temperature Monitoring in HEV and EV Traction Inverter Systems Using ADS795x-Q1 28 Jun 2018
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS7953EVM-PDK — ADS7953 Performance Demonstration Kit

The ADS79xxEVM-PDK is a complete evaluation/demonstration kit, which combines the ADS7953EVM, the ADS7957EVM or the ADS7961EVM with the DSP-based MMB0 board as a motherboard. The mother board and the ADCPro™ evaluation software are supplied for use with a personal computer running (...)

User guide: PDF
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Simulation model

ADS795x Family IBIS Model

SBAM022.ZIP (67 KB) - IBIS Model
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Calculation tool

ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and (...)
Design now
Calculation tool

ANALOG-ENGINEER-CALC — 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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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 (...)
User guide: PDF
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Reference designs

TIPD201 — Isolated Current Shunt/Voltage Measurement Reference Design for Automotive Battery Pack Monitoring

This TI Verified Design provides the theory, component selection, TINA-TI simulations, Verification & Measurement Performance, Altium Schematics, PCB Layout for automotive Battery Pack monitoring application.  The design uses a automotive AEC-Q100 qualified 12-bit, 4-Channel, 1Msps SAR ADC, (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
TSSOP (DBT) 30 View options
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