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Convertidores analógico-digitales (ADC)
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ADC122S021

ACTIVO

Convertidor A/D de 12 bits, 2 canales, de 50 ksps a 200 ksps

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ADC122S021

ACTIVO
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Detalles del producto

Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 2 Interface type Microwire (Serial I/O), SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 2.2 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 2 Interface type Microwire (Serial I/O), SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 2.2 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Specified over a Range of Sample Rates.
  • Two Input Channels
  • Variable Power Management
  • Single Power Supply with 2.7V - 5.25V Range

Key Specifications

  • DNL +0.4 / −0.2 LSB (typ)
  • INL ± 0.35 LSB (typ)
  • SNR 72.0 dB (typ)
  • Power Consumption 2.2 mW (typ)
    • 5V Supply 7.9 mW (typ)

All trademarks are the property of their respective owners.

  • Specified over a Range of Sample Rates.
  • Two Input Channels
  • Variable Power Management
  • Single Power Supply with 2.7V - 5.25V Range

Key Specifications

  • DNL +0.4 / −0.2 LSB (typ)
  • INL ± 0.35 LSB (typ)
  • SNR 72.0 dB (typ)
  • Power Consumption 2.2 mW (typ)
    • 5V Supply 7.9 mW (typ)

All trademarks are the property of their respective owners.

The ADC122S021 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC122S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.

The ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply.

The ADC122S021 is packaged in an 8-lead VSSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.

The ADC122S021 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC122S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.

The ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply.

The ADC122S021 is packaged in an 8-lead VSSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADC122S021 2 Channel, 50 ksps to 200 ksps 12-Bit A/D Converter datasheet (Rev. D) 19/03/2013
Circuit design Low-input bias-current front end SAR ADC circuit (Rev. B) PDF | HTML 24/09/2024
Libro electrónico Best of Baker's Best: Precision Data Converters -- SAR ADCs 21/05/2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Controlador o biblioteca

ADC128S052SW-LINUX — Controlador Linux para ADC128S052

The Linux driver supports the ADC128S052 series of ADCs. The Linux driver supports communication through the SPI bus and interfaces with the IIO sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • adc128s052
  • adc122s021

 

Linux Source (...)

Productos y hardware compatibles
Herramienta de diseño

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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Pedidos y calidad

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Soporte y capacitación

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