SLPS785 December   2023 RES11A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 DC Measurement Configurations
    2. 6.2 AC Measurement Configurations
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Ratiometric Matching
      2. 7.3.2 Ratiometric Drift
      3. 7.3.3 Predictable Voltage Coefficient
      4. 7.3.4 Ultra-Low Noise
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Discrete Difference Amplifier
        1. 8.1.1.1 Difference-Amplifier Common-Mode Rejection Analysis
      2. 8.1.2 Discrete Instrumentation Amplifiers
        1. 8.1.2.1 Instrumentation Amplifier Common-Mode Rejection Analysis
      3. 8.1.3 Fully Differential Amplifier
    2. 8.2 Typical Application
      1. 8.2.1 Common-Mode Shifting Input Stage
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
        2. 9.1.1.2 TINA-TI™ Simulation Software (Free Download)
        3. 9.1.1.3 TI Reference Designs
        4. 9.1.1.4 Filter Design Tool
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information
    2. 11.2 Mechanical Data

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DDF|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The RES11A is a matched pair of resistive dividers, implemented in thin-film SiCr with Texas Instruments' modern, high-performance, analog CMOS process. The device has a nominal input resistance of 1 kΩ, for low thermal and current noise, and is available in several nominal ratios to meet a wide array of system needs. Use the RES11A in an inverse gain configuration by simply rotating the device placement by 180°. This feature supports layout reuse and increases flexibility for applications such as discrete instrumentation or difference amplifier implementations.

The RES11A series features high ratio-matching precision, with the measured ratio of each divider within ±120 ppm (typical) of the nominal. This precision is maintained over the temperature range, with a maximum ratio drift of only ±2 ppm/°C. Additionally, the biased long-term stability of the device has been proven through thorough characterization.

The RES11A is specified with a temperature range from –40°C to +125°C. The device is offered in an 8‑pin, SOT‑23-THIN package, with a body size of 2.9 mm × 1.6 mm (body size is a nominal value and does not include pins).

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
RES11A DDF (SOT-23-THIN, 8) 2.9 mm × 2.8 mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
Device Information
PART NUMBER NOMINAL RATIO
RES11A10 1:1
RES11A15(1) 1:1.5
RES11A16(1) 1:1.667
RES11A20(1) 1:2
RES11A25(1) 1:2.5
RES11A30(1) 1:3
RES11A40 1:4
RES11A50(1) 1:5
RES11A90 1:9
RES11A00 1:10
(1) Preview information (not Advanced Information).

 

GUID-20220828-SS0I-6MH2-1N0Z-BKRW9ZBGQDJJ-low.svgFunctional Block Diagram
GUID-20231209-SS0I-77QS-5JQQ-RDRVZS7GCPCF-low.svgExcellent Ratio Matching for Best CMRR