Product details

Resolution (Bits) 18 Sample rate (max) (ksps) 20000 Number of input channels 2 Interface type Serial LVDS Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.1 Input voltage range (min) (V) 0.7 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 360 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 94 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
Resolution (Bits) 18 Sample rate (max) (ksps) 20000 Number of input channels 2 Interface type Serial LVDS Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.1 Input voltage range (min) (V) 0.7 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 360 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 94 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
VQFN (RHA) 40 36 mm² 6 x 6
  • High-speed and low-power:
    • ADS9219: 20MSPS/ch, 230mW/ch
    • ADS9218: 10MSPS/ch, 146mW/ch
    • ADS9217: 5MSPS/ch, 95mW/ch
  • 2-channel, simultaneous sampling
  • Feature integration:
    • Integrated ADC driver
    • Integrated precision reference
    • Common-mode voltage output buffer
  • High performance:
    • 18-bit no-missing-codes
    • INL: ±1LSB, DNL: ±0.75LSB
    • SNR: 95.5dB and 104.5dB SNR with OSR = 16
  • Wide input bandwidth (–3dB):
    • ADS9219 and ADS9218: 90MHz
    • ADS9217: 45MHz
  • Serial LVDS interface:
    • SDR and DDR output modes
    • Synchronous clock and data output
  • Extended operating range: –40°C to +125°C
  • High-speed and low-power:
    • ADS9219: 20MSPS/ch, 230mW/ch
    • ADS9218: 10MSPS/ch, 146mW/ch
    • ADS9217: 5MSPS/ch, 95mW/ch
  • 2-channel, simultaneous sampling
  • Feature integration:
    • Integrated ADC driver
    • Integrated precision reference
    • Common-mode voltage output buffer
  • High performance:
    • 18-bit no-missing-codes
    • INL: ±1LSB, DNL: ±0.75LSB
    • SNR: 95.5dB and 104.5dB SNR with OSR = 16
  • Wide input bandwidth (–3dB):
    • ADS9219 and ADS9218: 90MHz
    • ADS9217: 45MHz
  • Serial LVDS interface:
    • SDR and DDR output modes
    • Synchronous clock and data output
  • Extended operating range: –40°C to +125°C

The ADS921x is a family of 18-bit, high-speed, dual-channel, simultaneous-sampling, analog-to-digital converters (ADCs) with an integrated driver for the ADC inputs. The integrated ADC driver simplifies the signal chain, reduces power consumption for precision applications, and supports high-frequency signals beyond 1MHz. By not requiring an external decoupling capacitor, the integrated ADC reference buffer is optimized for wide bandwidth applications.

The ADS921x uses a serial LVDS (SLVDS) data interface that enables high-speed digital communication while minimizing digital switching noise. Read the dual-channel ADC data using separate SLVDS outputs per ADC channel or one SLVDS output for both ADC channels.

The ADS921x is a family of 18-bit, high-speed, dual-channel, simultaneous-sampling, analog-to-digital converters (ADCs) with an integrated driver for the ADC inputs. The integrated ADC driver simplifies the signal chain, reduces power consumption for precision applications, and supports high-frequency signals beyond 1MHz. By not requiring an external decoupling capacitor, the integrated ADC reference buffer is optimized for wide bandwidth applications.

The ADS921x uses a serial LVDS (SLVDS) data interface that enables high-speed digital communication while minimizing digital switching noise. Read the dual-channel ADC data using separate SLVDS outputs per ADC channel or one SLVDS output for both ADC channels.

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* Data sheet ADS921x Dual, Simultaneous-Sampling, 18-Bit, 20MSPS SAR ADC With Fully Differential ADC Input Driver datasheet (Rev. C) PDF | HTML 25 Apr 2025
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML 29 Oct 2025
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML 10 Apr 2025
Application brief 1MHz Signal-Chain for Wide Bandwidth Data Acquisition PDF | HTML 22 Jan 2025
Application brief Low Latency Signal-Chains for Digital Control Loops with ADS9219 (Rev. A) PDF | HTML 22 May 2024
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Technical article 자동화된 테스터 및 인코더를 모니터링하는 방법 PDF | HTML 14 May 2024
Technical article Higher precision ADCs to monitor automated testers and encoders PDF | HTML 03 May 2024
Circuit design ADS9218 Power-Optimized Signal Chain Circuit PDF | HTML 21 Oct 2022
Application note Simplify Antialiasing Filters With ADS9218 PDF | HTML 21 Oct 2022

Design & development

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

Evaluation board

ADS9219EVM — ADS9219 evaluation module

The ADS9219 evaluation module (EVM) is a platform for evaluating the performance of the ADS9219, a two-channel, 18-bit, 20MSPS per channel successive approximation register (SAR) analog-to-digital converter (ADC) with integrated ADC driver and voltage reference. The ADS9219EVM includes a discrete (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

ADS9227EVM — ADS9227 evaluation module

The ADS9227 evaluation module (EVM) is a platform for evaluating the performance of the ADS9227 device, a 2-channel, 16-bit 5MSPS per channel SAR ADC with integrated ADC driver and voltage reference. The ADS9227EVM includes the two unique signal chain proposals which customers can use to evaluate (...)
User guide: PDF | HTML
Not available on TI.com
Support software

ADS92XX-FPGA-EXAMPLE-CODE ADS92xx FPGA interface example code

Expedite your ADS92xx digital design with this Verilog module from Texas Instruments
Supported products & hardware

Supported products & hardware

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Simulation model

ADS92xx IBIS Model

SBAM513.ZIP (37 KB) - IBIS Model
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

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.
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Supported products & hardware

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 (...)
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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VQFN (RHA) 40 Ultra Librarian

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