SLOS180D February   1997  – April 2026 TL031 , TL032 , TL032A , TL034 , TL034A

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  Thermal Information
    3. 5.3  Recommended Operating Conditions
    4. 5.4  TL031C and TL031AC Electrical Characteristics
    5. 5.5  TL031C and TL031AC Operating Characteristics
    6. 5.6  TL031I and TL031AI Electrical Characteristics
    7. 5.7  TL031I and TL031AI Operating Characteristics
    8. 5.8  TL032C and TL032AC Electrical Characteristics
    9. 5.9  TL032C and TL032AC Operating Characteristics
    10. 5.10 TL032I and TL032AI Electrical Characteristics
    11. 5.11 TL032I and TL032AI Operating Characteristics
    12. 5.12 TL034C and TL034AC Electrical Characteristics
    13. 5.13 TL034C and TL034AC Operating Characteristics
    14. 5.14 TL034I and TL034AI Electrical Characteristics
    15. 5.15 TL034I and TL034AI Operating Characteristics
    16. 5.16 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Typical Values
    2. 6.2 Input Bias and Offset Current
    3. 6.3 Noise
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Input Characteristics
      2. 7.1.2 Output Characteristics
      3. 7.1.3 Transimpedance Amplifier
      4. 7.1.4 4mA to 20mA Current Loops
      5. 7.1.5 Instrumentation Amplifier with Linear Gain Adjust
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • D|8
  • P|8
  • PS|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.1.5 Instrumentation Amplifier with Linear Gain Adjust

The low offset voltage and low power consumption of the TL03x provide an accurate but inexpensive instrumentation amplifier (see Figure 7-7). This particular configuration offers the advantage that the gain can be linearly set by one resistor:

TL031 TL031A TL032 TL032A TL034 TL034A

Adjusting R6 varies the gain. The value of R6 always must be greater than, or equal to, the value of R5 to ensure stability. The disadvantage of this instrumentation amplifier topology is the high degree of CMRR degradation resulting from mismatches between R1, R2, R3, and R4. For this reason, these four resistors must be 0.1%-tolerance resistors.

TL031 TL031A TL032 TL032A TL034 TL034A Instrumentation Amplifier with Linear Gain-Adjust Circuit
A. U1A through U1D = TL03x; VCC± = ±15V
Figure 7-7 Instrumentation Amplifier with Linear Gain-Adjust Circuit