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INA122UA
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FabricanteTexas Instruments
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Peça do Fabricante #INA122UA
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Especificações
| Atributo | Valor |
| Package | Bulk,Tube |
| ProductStatus | Active |
| AmplifierType | Instrumentation |
| NumberofCircuits | 1 |
| SlewRate | 0.16V/µs |
| -3dbBandwidth | 120 kHz |
| Current-InputBias | 10 nA |
| Voltage-InputOffset | 150 µV |
| Current-Supply | 60µA |
| Current-Output/Channel | 30 mA |
| Voltage-SupplySpan(Min) | 2.2 V |
| Voltage-SupplySpan(Max) | 36 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Visão Geral
Description
The INA122UA offers a gain range that can be easily set using an external resistor, providing flexibility for various application needs. It operates over a wide temperature range and is available in a compact surface-mount package, making it suitable for space-constrained designs. The device ensures high performance with low offset voltage and low drift, enhancing the reliability and accuracy of the amplified signals.
Its robust design allows it to handle differential input signals effectively while minimizing noise and interference, delivering a clean output. The INA122UA is part of a family of amplifiers known for their stability and ease of use in precision measurement applications.
Equivalent
1. INA126: Offered by Texas Instruments, it has similar specifications and applications.
2. AD620: From Analog Devices, it provides low noise and precision in a compact package.
3. MAX4466: A similar amplifier by Maxim Integrated, suitable for precision applications.
4. LT1167: Offered by Analog Devices (formerly Linear Technology), provides low power and precision.
These alternatives may have slight differences in specifications, so verify compatibility for specific applications.
Features
1. Low Power Consumption: It operates at a low supply current, making it suitable for battery-powered devices.
2. High Accuracy and Precision: Offers low offset voltage and drift, along with high common-mode rejection ratio (CMRR), to ensure accurate signal amplification.
3. Wide Supply Voltage Range: Supports a wide supply voltage range, enhancing versatility across different systems.
4. Adjustable Gain: Gain can be easily set with external resistors, allowing flexibility in application-specific designs.
5. Rail-to-Rail Output: Provides maximum signal swing, enhancing the dynamic range of the output signal.
6. Low Noise: Features low noise performance, crucial for applications requiring precise low-level signal amplification.
7. Temperature Range: Operates over an extended temperature range, making it suitable for various environmental conditions.
These features make the INA122UA ideal for applications such as medical instrumentation, data acquisition, and sensor interfacing, where performance and efficiency are critical.
Pinout
1. Pin 1 (RG): Gain setting resistor. Connect an external resistor between this pin and pin 8 to set the gain.
2. Pin 2 (V- or -Vs): Negative power supply voltage.
3. Pin 3 (V- IN): Inverting input.
4. Pin 4 (V+ IN): Non-inverting input.
5. Pin 5 (Ref): Reference voltage input. Setting this pin to a voltage other than ground shifts the output voltage.
6. Pin 6 (VOUT): Output voltage.
7. Pin 7 (V+ or +Vs): Positive power supply voltage.
8. Pin 8 (RG): Gain setting resistor. Used in conjunction with pin 1.
The INA122UA is designed for precision amplification of differential input signals while rejecting common-mode voltages. It's suitable for applications requiring accurate and stable gain, such as sensor signal conditioning.
Manufacturer
Application
1. Medical Instrumentation: For amplifying bio-signals like ECG and EEG.
2. Industrial Automation: Used in sensor signal conditioning, such as pressure, temperature, and load sensors.
3. Weigh Scales: Amplification of load cell outputs for precise weight measurements.
4. Data Acquisition Systems: Enhances signal quality for accurate data collection.
5. Strain Gauge Measurements: Provides reliable amplification for stress analysis applications.
6. Portable Instrumentation: Low power consumption makes it suitable for battery-powered devices.