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OPA129U
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HerstellerTexas Instruments
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Herstellerteil #OPA129U
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Auf Lager7266
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Spezifikationen
| Attribut | Wert |
| Package / Case | Bulk,Tube |
| Series | Difet® |
| Part Status | Obsolete |
| Amplifier Type | General Purpose |
| Number of Circuits | 1 |
| Slew Rate | 2.5V/µs |
| Gain Bandwidth Product | 1 MHz |
| Current - Input Bias | 0.03 pA |
| Voltage - Input Offset | 1 mV |
| Supply Current | 1.2mA |
| Current - Output / Channel | 10 mA |
| Voltage - Supply Span(Min) | 10 V |
| Voltage - Supply Span(Max) | 36 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Übersicht
Description
The OPA129U is a precision operational amplifier designed for applications requiring extremely low input bias current and low noise. This high-performance op-amp is part of the OPA129 series, known for its exceptional input characteristics, making it ideal for use in electrometer-grade applications. It features a very low input bias current, typically in the range of femtoamperes (fA), which is critical for high-impedance applications like photodiode amplifiers, ion detectors, and other sensitive instrumentation.
The OPA129U offers a low offset voltage and drift, contributing to its accuracy over a range of environmental conditions. It operates over a wide supply voltage range, enhancing its versatility in various circuit designs. The device’s low noise performance ensures precise signal amplification without unwanted interference, which is crucial in scientific and medical instruments where signal integrity is paramount.
Packaged in a compact form, the OPA129U is easy to integrate into a variety of electronic systems, making it a reliable choice for designers seeking both precision and reliability in their amplification solutions.
The OPA129U offers a low offset voltage and drift, contributing to its accuracy over a range of environmental conditions. It operates over a wide supply voltage range, enhancing its versatility in various circuit designs. The device’s low noise performance ensures precise signal amplification without unwanted interference, which is crucial in scientific and medical instruments where signal integrity is paramount.
Packaged in a compact form, the OPA129U is easy to integrate into a variety of electronic systems, making it a reliable choice for designers seeking both precision and reliability in their amplification solutions.
Equivalent
The OPA129U is a high-impedance operational amplifier. Equivalent products include:
1. LMC6001 from Texas Instruments
2. AD549 from Analog Devices
3. LT1128 from Analog Devices (though not exact, it offers low noise and high precision)
4. CA3130 from Intersil (now part of Renesas Electronics)
These alternatives may have variations in specifications, so it's important to review datasheets to ensure compatibility with your specific application.
1. LMC6001 from Texas Instruments
2. AD549 from Analog Devices
3. LT1128 from Analog Devices (though not exact, it offers low noise and high precision)
4. CA3130 from Intersil (now part of Renesas Electronics)
These alternatives may have variations in specifications, so it's important to review datasheets to ensure compatibility with your specific application.
Features
The OPA129U is a precision operational amplifier known for its ultra-low input bias current and high accuracy. Key features include:
1. Ultra-Low Input Bias Current: The OPA129U is designed with a bias current as low as 100 fA, making it suitable for applications requiring minimal leakage current.
2. High Input Impedance: It offers extremely high input impedance, which is ideal for interfacing with high-impedance sensors and circuits.
3. Low Offset Voltage: The amplifier provides low offset voltage, ensuring high precision in signal amplification.
4. Wide Supply Voltage Range: It operates over a wide supply voltage range (±5 V to ±15 V), enhancing its versatility for various applications.
5. Low Noise: The OPA129U delivers low noise performance, which is critical for maintaining signal integrity in precision measurement systems.
6. Temperature Stability: It is designed to maintain performance across a wide temperature range, making it reliable in different environments.
These features make the OPA129U suitable for sensitive applications like electrometers, photodiode amplifiers, and other precision instrumentation where minimal signal distortion is critical.
1. Ultra-Low Input Bias Current: The OPA129U is designed with a bias current as low as 100 fA, making it suitable for applications requiring minimal leakage current.
2. High Input Impedance: It offers extremely high input impedance, which is ideal for interfacing with high-impedance sensors and circuits.
3. Low Offset Voltage: The amplifier provides low offset voltage, ensuring high precision in signal amplification.
4. Wide Supply Voltage Range: It operates over a wide supply voltage range (±5 V to ±15 V), enhancing its versatility for various applications.
5. Low Noise: The OPA129U delivers low noise performance, which is critical for maintaining signal integrity in precision measurement systems.
6. Temperature Stability: It is designed to maintain performance across a wide temperature range, making it reliable in different environments.
These features make the OPA129U suitable for sensitive applications like electrometers, photodiode amplifiers, and other precision instrumentation where minimal signal distortion is critical.
Pinout
The OPA129U is a precision operational amplifier known for its extremely low input bias current. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. Pin 1 (Offset Null): Used to adjust the offset voltage.
2. Pin 2 (Inverting Input, -IN): Input for the inverting signal.
3. Pin 3 (Non-Inverting Input, +IN): Input for the non-inverting signal.
4. Pin 4 (V- or -VCC): Negative power supply voltage.
5. Pin 5 (Offset Null): Another pin used for offset voltage adjustment, often connected together with Pin 1 through a potentiometer.
6. Pin 6 (Output): The output of the amplifier.
7. Pin 7 (V+ or +VCC): Positive power supply voltage.
8. Pin 8 (NC): No connection, often not connected internally.
These pins facilitate the basic operational amplifier functions such as providing differential input, adjusting offset, and delivering amplified output, with the power supply pins providing the necessary operating voltages.
1. Pin 1 (Offset Null): Used to adjust the offset voltage.
2. Pin 2 (Inverting Input, -IN): Input for the inverting signal.
3. Pin 3 (Non-Inverting Input, +IN): Input for the non-inverting signal.
4. Pin 4 (V- or -VCC): Negative power supply voltage.
5. Pin 5 (Offset Null): Another pin used for offset voltage adjustment, often connected together with Pin 1 through a potentiometer.
6. Pin 6 (Output): The output of the amplifier.
7. Pin 7 (V+ or +VCC): Positive power supply voltage.
8. Pin 8 (NC): No connection, often not connected internally.
These pins facilitate the basic operational amplifier functions such as providing differential input, adjusting offset, and delivering amplified output, with the power supply pins providing the necessary operating voltages.
Manufacturer
The OPA129U is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and integrated circuits. It is one of the largest semiconductor companies in the world and is well-known for its wide range of products, including analog electronics, embedded processors, and digital light processing technology. TI serves various industries, including automotive, industrial, electronics, and communications, providing solutions that enhance performance and efficiency.
Application
The OPA129U is a precision operational amplifier known for its ultra-low input bias current, making it ideal for applications requiring high-input impedance. Key areas of application include:
1. Electrometer and photodiode preamplifiers, where minimal current interference is crucial.
2. Ionization chamber and capacitor sensor amplification in scientific instruments.
3. High-impedance buffering and charge integration in medical instrumentation.
4. Precision current-to-voltage conversion, particularly in analytical equipment.
5. Use in laboratory-grade measurement devices requiring accurate low-level signal processing.
Its stability and precision make it suitable for scenarios demanding minimal signal distortion and high accuracy.
1. Electrometer and photodiode preamplifiers, where minimal current interference is crucial.
2. Ionization chamber and capacitor sensor amplification in scientific instruments.
3. High-impedance buffering and charge integration in medical instrumentation.
4. Precision current-to-voltage conversion, particularly in analytical equipment.
5. Use in laboratory-grade measurement devices requiring accurate low-level signal processing.
Its stability and precision make it suitable for scenarios demanding minimal signal distortion and high accuracy.
Package
The OPA129U is an operational amplifier from Texas Instruments, provided in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is suitable for surface mounting on PCBs, offering a compact form factor for electronic component integration.
