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INA129U
+BOM-
ManufacturerTexas Instruments
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Mfr. Part #INA129U
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In Stock7500
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Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Active |
| AmplifierType | Instrumentation |
| NumberofCircuits | 1 |
| SlewRate | 4V/µs |
| -3dbBandwidth | 1.3 MHz |
| Current-InputBias | 20 nA |
| Voltage-InputOffset | 10 µV |
| Current-Supply | 700µA |
| Current-Output/Channel | 15 mA |
| Voltage-SupplySpan(Min) | 4.5 V |
| Voltage-SupplySpan(Max) | 36 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Overview
Description
Key features of the INA129U include low offset voltage, low input bias current, and a wide supply voltage range, typically from ±2.25V to ±18V. It offers excellent performance with a low noise level and high common-mode rejection ratio (CMRR), making it ideal for use in medical instrumentation, data acquisition, and industrial process controls.
The gain of the INA129U is adjustable through the use of an external resistor, allowing for flexibility in various applications. Its robust design ensures reliability and stability, even in challenging environments. Overall, the INA129U is a versatile and dependable choice for precision signal amplification needs.
Equivalent
1. AD620 from Analog Devices
2. MAX4194 from Maxim Integrated
3. LT1167 from Analog Devices (formerly Linear Technology)
4. MCP6N11 from Microchip Technology
These alternatives have similar functionalities, with variations in parameters like supply voltage, input noise, and gain bandwidth. Always check the specific requirements of your application to ensure compatibility.
Features
1. Low Power Consumption: It operates with low supply current, making it suitable for battery-powered applications.
2. High Common-Mode Rejection Ratio (CMRR): This ensures accurate readings by minimizing interference from noise signals common to both inputs.
3. Wide Supply Range: It can operate with a supply range from ±2.25V to ±18V, offering flexibility for various applications.
4. Low Offset Voltage and Drift: These characteristics contribute to its precision by minimizing errors over temperature changes.
5. Adjustable Gain: The gain can be set with a single external resistor, allowing for easy customization to specific needs.
6. Differential Input: It can handle differential input signals, making it ideal for sensor applications.
7. Temperature Range: The INA129U functions reliably over a wide temperature range, typically from -40°C to +85°C.
These features make the INA129U suitable for applications like medical instrumentation, data acquisition systems, and industrial process controls, where precision and reliability are critical.
Pinout
1. V+: Positive power supply pin.
2. V-: Negative power supply pin (or ground in single-supply operation).
3. RG: Gain setting pin. Connect an external resistor between RG pins to set the gain of the amplifier.
4. RG: Second gain setting pin, works in conjunction with the other RG.
5. +IN: Non-inverting input.
6. -IN: Inverting input.
7. REF: Reference input pin. Used to set the output reference voltage.
8. OUT: Output pin. Provides the amplified output voltage.
The INA129U is designed for high-precision applications, providing low offset voltage, high common-mode rejection, and low noise. It is commonly used in sensor signal conditioning, data acquisition, and other applications requiring precise differential signal amplification.
Manufacturer
Application
1. Medical Instrumentation: Used in ECG, EEG, and other biomedical monitoring devices for precise biopotential measurements.
2. Industrial Automation: Employed in sensor signal conditioning for pressure, temperature, and flow measurements.
3. Weigh Scales: Utilized in load cell signal amplification for accurate weight measurements.
4. Data Acquisition Systems: Enhances signal integrity for accurate data recording and processing.
5. Test and Measurement Equipment: Provides precise signal amplification in laboratory instruments.
6. Strain Gauge Amplification: Used in structural monitoring and testing applications.
Overall, the INA129U is ideal for applications requiring high accuracy and stability in signal amplification.