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ADS9219

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2-channel, 18-bit, 20 Msps/channel, with ADC driver and reference driver in 6mm x 6mm QFN

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Data sheet

ADS9219

ACTIVE
Data sheet Order now

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 mm × 6 mm)
  • 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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ADS921x Dual, Simultaneous-Sampling, 18-Bit, 20MSPS SAR ADC With Fully Differential ADC Input Driver datasheet (Rev. C) PDF | HTML Apr 25, 2025
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML Oct 29, 2025
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML Apr 10, 2025
Application brief 1MHz Signal-Chain for Wide Bandwidth Data Acquisition PDF | HTML Jan 22, 2025
Application brief Low Latency Signal-Chains for Digital Control Loops with ADS9219 (Rev. A) PDF | HTML May 22, 2024
Technical article Higher precision ADCs to monitor automated testers and encoders PDF | HTML May 3, 2024
Circuit design ADS9218 Power-Optimized Signal Chain Circuit PDF | HTML Oct 21, 2022
Application note Simplify Antialiasing Filters With ADS9218 PDF | HTML Oct 21, 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
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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 (...)
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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
Simulation model

ADS92xx IBIS Model

SBAM513.ZIP (37 KB) - IBIS model
Supported products & hardware
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
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
VQFN (RHA) 40 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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