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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：4V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：2 nA
- Voltage - Input Offset：25 µV
- Current - Supply：700µA
- Current - Output / Channel：15 mA
- Voltage - Supply Span (Min)：4.5 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：1.3 MHz
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Overview
The INA128UA/2K5E4 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel in an 8-SOIC surface-mount package. Key electrical specifications include a supply voltage range of 4.5 V to 36 V, a gain bandwidth product of 1.3 MHz, and a slew rate of 4 V/µs. The device operates within a temperature range of -40°C to +125°C and consumes 700 µA of supply current.
Feature Summary
- High precision with low input offset voltage
- Low power consumption suitable for battery-operated systems
- Wide common-mode rejection ratio for noise reduction
- Single-supply or dual-supply operation capability
Applications
- Precision data acquisition systems
- Medical equipment such as ECG circuits
- Industrial process control sensors
- Strain gauge and bridge sensor interfaces
- Photodiode and transimpedance amplification
Procurement Notes
Verify the specific suffix 'E4' indicates lead-free compliance and RoHS status according to the official Texas Instruments datasheet. Confirm the '/2K5' designation corresponds to the tape and reel packaging quantity of 2500 units. Ensure the operating temperature grade matches the 'U' suffix specification for industrial applications.
Selection Notes
Select this component when high accuracy and low power are required simultaneously. The 1.3 MHz bandwidth supports moderate-speed signal conditioning. Compare against the standard INA128UA if reel packaging is not necessary. Consider the 8-SOIC footprint constraints during PCB layout design.
Part Context
This part belongs to the INA12x family of instrumentation amplifiers from Texas Instruments. It shares core architecture with the INA128 but includes specific packaging and environmental compliance modifications indicated by the suffixes. It is designed for general-purpose precision amplification tasks requiring stable gain and low drift.
Replacement Considerations
Official substitutes include the INA128UA and INA128U variants. Verify pin compatibility and electrical parameter equivalence before substitution. The INA129 offers similar performance with different gain resistor configurations.
