SNAS304H January   2006  – April 2016 ADC121S101 , ADC121S101-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings: ADC121S101
    3. 7.3 ESD Ratings: ADC121S101-Q1
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Timing Requirements
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Determining Throughput
      2. 8.3.2 ADC Transfer Function
      3. 8.3.3 Analog Inputs
      4. 8.3.4 Digital Inputs and Outputs
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Mode
      2. 8.4.2 Shutdown Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Power Management
    2. 10.2 Power Supply Noise Considerations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Device Nomenclature
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Specified Over a Range of Sample Rates
  • 6-Pin WSON and SOT-23 Packages
  • Variable Power Management
  • Single Power Supply With 2.7 V to 5.25 V Range
  • SPI™, QSPI™, MICROWIRE, and DSP Compatible
  • AEC-Q100 Grade 1 Qualified
  • DNL: +0.5 / −0.3 LSB (Typical)
  • INL: ±0.40 LSB (Typical)
  • Power Consumption:
    • 3-V Supply: 2 mW (Typical)
    • 5-V Supply: 10 mW (Typical)

2 Applications

  • Portable Systems
  • Remote Data Acquisition
  • Instrumentation and Control Systems
  • Automotive

3 Description

The ADC121S101 is a low-power, single-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 ADC121S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit.

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 ADC121S101 operates with a single supply with a range from 2.7 V to 5.25 V. Normal power consumption using a 3 V or 5 V supply is 2 mW and 10 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5-V supply.

The ADC121S101 is packaged in 6-pin WSON and SOT-23 packages. Operation over the temperature range of −40°C to 125°C is specified.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
ADC121S101 WSON (6) 2.50 mm × 2.20 mm
SOT-23 (6) 2.90 mm × 1.60 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

INL, fSCLK = 10 MHz

ADC121S101 ADC121S101-Q1 20145021.png