Produktdetails

Resolution (Bits) 16 Sample rate (max) (ksps) 2500 Number of input channels 1 Interface type Enhanced SPI, SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 15 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 1.95 SNR (dB) 96 Digital supply (min) (V) 1.65 Digital supply (max) (V) 1.95
Resolution (Bits) 16 Sample rate (max) (ksps) 2500 Number of input channels 1 Interface type Enhanced SPI, SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 15 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 1.95 SNR (dB) 96 Digital supply (min) (V) 1.65 Digital supply (max) (V) 1.95
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • Sample Rate: 2.5MSPS
  • No Latency Output
  • Excellent DC and AC Performance:
    • INL: ±0.25LSB
    • DNL: ±0.6LSB
    • SNR: 96dB, THD: –118dB
  • Wide Input Range:
    • Unipolar Differential Input Range: ±VREF
    • VREF Input Range: 2.5V to 5V, Independent of AVDD
  • Low-Power Dissipation:
    • 9mW at 2.5MSPS (AVDD Only)
    • 15.5mW at 2.5MSPS (Total)
    • Flexible Low-Power Modes Enable Power Scaling with Throughput
  • Enhanced-SPI ( multiSPI™) Digital Interface
  • JESD8-7A-Compliant Digital I/O at 1.8V DVDD
  • Fully-Specified Over Extended Temperature Range: –40°C to +125°C
  • Small Footprint: 4mm × 4mm VQFN
  • Sample Rate: 2.5MSPS
  • No Latency Output
  • Excellent DC and AC Performance:
    • INL: ±0.25LSB
    • DNL: ±0.6LSB
    • SNR: 96dB, THD: –118dB
  • Wide Input Range:
    • Unipolar Differential Input Range: ±VREF
    • VREF Input Range: 2.5V to 5V, Independent of AVDD
  • Low-Power Dissipation:
    • 9mW at 2.5MSPS (AVDD Only)
    • 15.5mW at 2.5MSPS (Total)
    • Flexible Low-Power Modes Enable Power Scaling with Throughput
  • Enhanced-SPI ( multiSPI™) Digital Interface
  • JESD8-7A-Compliant Digital I/O at 1.8V DVDD
  • Fully-Specified Over Extended Temperature Range: –40°C to +125°C
  • Small Footprint: 4mm × 4mm VQFN

The ADS9120 is a 16-bit, 2.5MSPS, successive approximation register (SAR) analog-to-digital converter (ADC) with enhanced performance features. The high throughput enables developers to oversample the input signal to improve dynamic range and accuracy of the measurement. The ADS9110 is a pin-compatible, 18-bit, 2MSPS variant of the ADS9120.

The ADS9120 boosts analog performance while maintaining high-resolution data transfer by using TI’s enhanced SPI feature. Enhanced SPI enables the ADS9120 to achieve high throughput at lower clock speeds, thereby simplifying board layout and lowering system cost.

Enhanced SPI also simplifies the host clocking-in of data, thereby making the device ideal for applications involving FPGAs and DSPs. The ADS9120 is compatible with a standard SPI Interface. The ADS9120 has an internal data parity feature that can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.

The device supports JESD8-7A compliant I/Os, the extended industrial temperature range, and is offered in a space-saving, 4mm × 4mm, VQFN package.

The ADS9120 is a 16-bit, 2.5MSPS, successive approximation register (SAR) analog-to-digital converter (ADC) with enhanced performance features. The high throughput enables developers to oversample the input signal to improve dynamic range and accuracy of the measurement. The ADS9110 is a pin-compatible, 18-bit, 2MSPS variant of the ADS9120.

The ADS9120 boosts analog performance while maintaining high-resolution data transfer by using TI’s enhanced SPI feature. Enhanced SPI enables the ADS9120 to achieve high throughput at lower clock speeds, thereby simplifying board layout and lowering system cost.

Enhanced SPI also simplifies the host clocking-in of data, thereby making the device ideal for applications involving FPGAs and DSPs. The ADS9120 is compatible with a standard SPI Interface. The ADS9120 has an internal data parity feature that can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.

The device supports JESD8-7A compliant I/Os, the extended industrial temperature range, and is offered in a space-saving, 4mm × 4mm, VQFN package.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt ADS9120 16-Bit, 2.5MSPS, 15.5mW, SAR ADC With Enhanced Performance Features datasheet (Rev. B) PDF | HTML 06.04.2026
Anwendungshinweis Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs 14.06.2018
Application brief Improving Input Settling for Precision Data Converters 12.12.2017
Application brief Optimizing Data Transfer on High-Resolution, High-Throughput Data Converters 12.12.2017
Application brief Simplify Isolation Designs Using an Enhanced-SPI ADC Interface 11.12.2017
Whitepaper Enabling Faster, Smarter, and More Robust Solutions for SAR ADSx With multiSPI 08.11.2016
Whitepaper Voltage-reference impact on total harmonic distortion 01.08.2016

Design und Entwicklung

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Evaluierungsplatine

ADS9120EVM-PDK — ADS9120 16 Bit, 2,5 MSPS, 15,5 mW, SAR-ADC-EVM-Leistungs-Demokit (PDK)

Das Leistungs-Demokit (Performance Demonstration Kit, PDK) für das ADS9120-Evaluierungsmodul (EVM) ist eine Plattform zur Leistungsevaluierung des ADS9120-Analog-Digital-Wandlers mit Iterationsregister (Successive-Approximation Register Analog-to-Digital Converter, SAR-ADC). Das ADS9120EVM-PDK (...)

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GUI für Evaluierungsmodul (EVM)

SBAC154 — ADS9120EVM-PDK GUI

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ADS9120 IBIS Model

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ADS9120 TINA-TI Reference Design

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ADS9120 TINA-TI Spice Model

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Impedance Spectroscopy TINA-TI Reference Design (Differential)

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Der Rechner für Analogtechniker beschleunigt viele der sich wiederholenden Berechnungen, die Entwickler von analogen Schaltungsdesigns regelmäßig durchführen müssen. Dieses PC-basierte Tool bietet eine grafische Schnittstelle mit einer Liste verschiedener gebräuchlicher Berechnungen. Das Spektrum (...)

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Designtool

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

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