SBOSAK6 June   2025 THS4535

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics for External Gain
    6. 6.6 Electrical Characteristics for Internal Gain
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Output Common-Mode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Down Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Common-Mode Voltage
        1. 8.1.1.1 Resistor Matching
      2. 8.1.2 Data Converters
      3. 8.1.3 Single-Supply Applications
    2. 8.2 Typical Application
      1. 8.2.1 Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Board Layout Recommendations
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

3 Description

The THS4535 is a 60MHz fully differential amplifier (FDA) that is specifically designed to drive fully differential analog-to-digital converters (ADCs) up to 2MSPS. The THS4535 family offers multiple options: THS4535 (untrimmed external gain), THS4535A (trimmed external gain), and THS4535Axx (trimmed internal gain).

The THS4535 is an excellent choice for simple single-to-dual conversions. FDAs such as the THS4535 offer performance benefits over traditional dual op amps, including bandwidth and phase balance between outputs and a VOCM pin to easily adjust the output common-mode voltage. For higher dc precision applications, such as high-speed low-side current shunt measurements, the THS4535A provides package level trim for offset and offset drift. THS4535A also provides higher transient current output drive to meet the needs of successive approximation register (SAR) ADC charge injection and delta-sigma (ΔΣ) ADC precharge buffers.

The THS4535Axx, with integrated SiCr resistors, is designed for data acquisition systems (DAQ) that require complete system-level precision. The THS4535Axx integrated resistors are specifically designed to minimize system level gain-error and CMRR over temperature and time. These temperature-stability and long-term-stability performance parameters, along with low signal-to-noise ratio (SNR) and low total harmonic distortion (THD), make the THS4535Axx an excellent choice for DAQ systems.

Package Information
PART NUMBER(1) PACKAGE(2) PACKAGE SIZE(3)
THS4535 DGK (VSSOP, 8) 3mm × 4.9mm
RUN (WQFN, 10) 2mm × 2mm
(1) See also Section 4.
(2) For more information, see Section 11.
(3) The package size (length × width) is a nominal value and includes pins, where applicable.
THS4535 Simplified Schematic: Gain of 1V/V, Single-Ended-Input to Differential-Output Interface to SAR ADC Simplified Schematic: Gain of 1V/V, Single-Ended-Input to Differential-Output Interface to SAR ADC