Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADC122S101

ACTIVE

2 Channel, 500 ksps to 1 Msps 12-Bit A/D Converter

Order now
Data sheet

ADC122S101

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 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) 4.3 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.4 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 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) 4.3 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.4 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: +0.9 / −0.6 LSB (typ)
  • INL: ±0.64 LSB (typ)
  • SNR: 72.4 dB (typ)
  • Power Consumption
    • 3V Supply: 4.3 mW (typ)
    • 5V Supply: 13.1 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: +0.9 / −0.6 LSB (typ)
  • INL: ±0.64 LSB (typ)
  • SNR: 72.4 dB (typ)
  • Power Consumption
    • 3V Supply: 4.3 mW (typ)
    • 5V Supply: 13.1 mW (typ)

All trademarks are the property of their respective owners.

The ADC122S101 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 ADC122S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. 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 ADC122S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 4.3 mW and 13.1 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 ADC122S101 is available in an 8-lead VSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.

The ADC122S101 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 ADC122S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. 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 ADC122S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 4.3 mW and 13.1 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 ADC122S101 is available in an 8-lead VSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.
filter Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
ADC122S051 ACTIVE 2 Channel, 200 ksps to 500 ksps 12-Bit A/D Converter Slower sample rate (500kSPS)
ADC122S021 ACTIVE 2 Channel, 50 ksps to 200 ksps 12-Bit A/D Converter Slower sample rate (200kSPS)
ADC082S101 ACTIVE 2 Channel, 500 ksps to 1 Msps, 8-Bit A/D Converter Lower resolution (8-bit)
Same functionality with different pin-out to the compared device.
ADC124S101 ACTIVE 4 Channel, 500 ksps to 1 Msps, 12-Bit A/D Converter Higher channel count (2x)

Technical documentation

No results found. Please clear your search and try again.
View all 4
Top documentation Type Title Format options Date
* Data sheet ADC122S101 2 Channel, 500 ksps to 1 Msps 12-Bit A/D Converter datasheet (Rev. D) Mar 19, 2013
Circuit design Low-input bias-current front end SAR ADC circuit (Rev. B) PDF | HTML Sep 24, 2024
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
User guide WEBENCH® Sensor Designer Photodetector Sensor V 1 PCB (unpopulated) User Guide Jan 27, 2012

Design & development

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

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
VSSOP (DGK) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos