SLOS547A November   2008  – November 2015 THS4509-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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: VS+ - VS- = 5 V
    6. 6.6 Electrical Characteristics: VS+ - VS- = 3 V
    7. 6.7 Typical Characteristics
      1. 6.7.1 Typical Characteristics: VS+ - VS- = 5 V
      2. 6.7.2 Typical Characteristics: VS+ - VS- = 3 V
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Test Circuits
        1. 8.1.1.1 Frequency Response
        2. 8.1.1.2 Distortion and 1-dB Compression
        3. 8.1.1.3 S-Parameter, Slew Rate, Transient Response, Settling Time, Output Impedance, Overdrive, Output Voltage, and Turn-On and Turn-Off Time
        4. 8.1.1.4 CM Input
        5. 8.1.1.5 CMRR and PSRR
      2. 8.1.2 Differential Input to Differential Output Amplifier
      3. 8.1.3 Single-Ended Input to Differential Output Amplifier
      4. 8.1.4 Input Common-Mode Voltage Range
      5. 8.1.5 Setting the Output Common-Mode Voltage
      6. 8.1.6 Single-Supply Operation (3 V to 5 V)
    2. 8.2 Typical Applications
      1. 8.2.1 THS4509-Q1 + ADS5500-EP Combined Performance
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 THS4509-Q1 + ADS5424-SP Combined Performance
        1. 8.2.2.1 Detailed Design Procedure
        2. 8.2.2.2 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 THS4509-Q1 EVM
      2. 10.1.2 EVM Warnings and Restrictions
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Qualified for Automotive Applications
  • Fully Differential Architecture
  • Centered Input Common-Mode Range
  • Minimum Gain of 2 V/V (6 dB)
  • Bandwidth: 1900 MHz
  • Slew Rate: 6600 V/μs
  • 1% Settling Time: 2 ns
  • HD2: –75 dBc at 100 MHz
  • HD3: –80 dBc at 100 MHz
  • OIP2: 73 dBm at 70 MHz
  • OIP3: 37 dBm at 70 MHz
  • Input Voltage Noise: 1.9 nV/√Hz (f > 10 MHz)
  • Noise Figure: 17.1 dB
  • Output Common-Mode Control
  • Power Supply:
    • Voltage: 3 V (±1.5 V) to 5 V (±2.5 V)
    • Current: 37.7 mA
  • Power-Down Capability: 0.65 mA

2 Applications

  • Adaptive Cruise Control
  • Blind Spot Detection
  • Collision Warning
  • Industrial
  • 5-V Data Acquisition Systems High Linearity ADC Amplifier
  • Test and Measurement

3 Description

The THS4509-Q1 is a wideband, fully differential operational amplifier designed for 5-V data-acquisition systems. It has very low noise at 1.9 nV/√Hz, and extremely low harmonic distortion of –75-dBc HD2 and –80-dBc HD3 at 100 MHz with 2 Vpp, G = 10 dB, and 1-kΩ load. Slew rate is very high at 6600 V/μs and with settling time of 2 ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for minimum gain of 6 dB but is optimized for gain of 10 dB.

To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 3-mV offset (typical) from the set voltage, when set within 0.5 V of mid-supply, with less than 4-mV differential offset voltage. The common-mode set point is set to mid-supply by internal circuitry, which may be overdriven from an external source.

The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high-performance at low power-supply voltage, this makes for extremely high-performance single-supply 5-V data-acquisition systems.

The THS4509-Q1 is offered in a quad 16-pin leadless QFN package (RGT) and is characterized for operation over the full automotive temperature range from –40°C to 125°C.

Device Information(1)

PART NUMBER MINIMUM GAIN COMMON-MODE RANGE OF INPUT
THS4509-Q1 6 dB 0.75 V to 4.25 V
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

THS4509-Q1 sch_los547.gif