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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT DIE
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：-
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：-
- Current - Supply：-
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：-
- Voltage - Supply Span (Max)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：Die
- Supplier Device Package：Die
- -3db Bandwidth：-
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Overview
The INA125TDA2 is a monolithic instrumentation amplifier manufactured by Texas Instruments, featuring an integrated precision voltage reference. It provides high common-mode rejection ratio (CMRR) and low offset voltage for accurate signal conditioning. The device operates on a single supply voltage ranging from 3V to 40V, with typical applications at 5V, 9V, 12V, 15V, 18V, 24V, and 28V. It includes a sleep mode for power conservation and offers a quiescent current of 460µA. The component is available in a die form factor.
Feature Summary
- Integrated precision voltage reference options including 1.24V, 2.5V, 5V, or 10V outputs
- Low offset voltage specification of 250µV maximum
- Dedicated sleep mode functionality for reduced power consumption
- High common-mode rejection capability
Applications
- Precision data acquisition systems
- Industrial process control instrumentation
- Medical equipment signal conditioning
- Strain gauge and bridge sensor interfaces
Procurement Notes
Verify the specific suffix and revision level when sourcing, as the TDA2 designation indicates a die configuration which may require specialized packaging or handling during assembly. Confirm lifecycle status, as some sources indicate this part may be obsolete or limited availability. Ensure compatibility with your board design regarding the bare die format versus packaged alternatives.
Selection Notes
Select this component when a built-in reference voltage is required to simplify circuit design and reduce external component count. The low offset voltage makes it suitable for high-accuracy measurements. Consider the die package constraints if standard surface-mount packages are preferred for production. Evaluate the sleep mode benefit against system power budgets.
Part Context
The INA125 series represents a family of instrumentation amplifiers designed for high-precision applications. The TDA2 variant specifically denotes the die version of the INA125, distinguishing it from packaged equivalents like the INA125P or INA125U. This family is characterized by its internal reference and low power characteristics, targeting industrial and scientific instruments.
Replacement Considerations
- INA125P
- INA125U
- INA125IDR
FAQ
What is the maximum operating supply voltage for the INA125TDA2?
The maximum operating supply voltage is 40V.
Does the INA125TDA2 include an internal voltage reference?
Yes, it features an integrated precision voltage reference with options for 1.24V, 2.5V, 5V, or 10V.
What is the quiescent current consumption of this device?
The quiescent current is typically 460µA.
