圖片僅供參考
規格
| 屬性 | 價值 |
| Package / Case | 0 |
| Series | Bulk |
| Part Status | LMP®, PowerWise® |
| Amplifier Type | Active |
| Number of Circuits | General Purpose |
| Output Type | 1 |
| Slew Rate | Rail-to-Rail |
| Gain Bandwidth Product | 12.8V/µs |
| -3 dB Bandwidth | 17 MHz |
| Voltage - Input Offset | 0.003 pA |
| Supply Current | 26 µV |
| Current - Output / Channel | 1.3mA |
| Voltage - Supply Span(Min) | 60 mA |
| Voltage - Supply Span(Max) | 1.8 V |
| Operating Temperature | 5.5 V |
| Mounting Type | -40°C ~ 125°C |
概述
Description
The LMP7721MA is a precision operational amplifier (op-amp) from Texas Instruments, designed for applications requiring low input bias current and low noise. It is part of the LMP7721 series and is known for its ultra-low input bias current of 3 femtoamps (fA) and low offset voltage, making it ideal for precision sensor interfaces and photodiode amplifiers.
This op-amp operates on a wide supply voltage range from 4.75V to 12V, which provides flexibility in various design applications. It also features a high open-loop gain and rail-to-rail output, enhancing performance in precision applications.
The LMP7721MA is temperature-stable and offers a low input offset voltage drift, ensuring consistent performance across a range of temperatures. It comes in a standard SOIC-8 package, facilitating its integration into existing designs. With its combination of low noise, low bias current, and precision, the LMP7721MA is suitable for applications in medical instrumentation, test equipment, and high-precision data acquisition systems.
This op-amp operates on a wide supply voltage range from 4.75V to 12V, which provides flexibility in various design applications. It also features a high open-loop gain and rail-to-rail output, enhancing performance in precision applications.
The LMP7721MA is temperature-stable and offers a low input offset voltage drift, ensuring consistent performance across a range of temperatures. It comes in a standard SOIC-8 package, facilitating its integration into existing designs. With its combination of low noise, low bias current, and precision, the LMP7721MA is suitable for applications in medical instrumentation, test equipment, and high-precision data acquisition systems.
Equivalent
The LMP7721MA is a precision, low-noise, low-bias current operational amplifier. Equivalent products include the OPA129 from Texas Instruments, the AD549 from Analog Devices, and the LT6018 from Analog Devices (formerly Linear Technology). While specifications may vary slightly, these alternatives offer similar low input bias current and low noise performance suitable for precision applications. Always check the specific datasheets to ensure compatibility with your application's requirements.
Features
The LMP7721MA is a precision operational amplifier known for its low input bias current and high input impedance, making it ideal for applications requiring precision signal conditioning. Key features include:
1. Low Input Bias Current: It boasts an ultra-low input bias current of 3 fA, which minimizes errors in high-impedance sensor applications.
2. High Input Impedance: The amplifier offers extremely high input impedance, essential for maintaining accuracy in high-impedance environments.
3. Low Offset Voltage: With a low offset voltage of 150 µV, it ensures high precision in signal amplification.
4. Low Noise: The amplifier provides low noise operation, essential for applications where signal integrity is critical.
5. Wide Supply Voltage Range: It operates over a wide supply voltage range from 4.75V to 12V, providing flexibility for various applications.
6. Rail-to-Rail Output: The LMP7721MA has a rail-to-rail output swing, allowing for maximum signal range utilization.
These features make the LMP7721MA suitable for precision applications such as electrometer-grade devices, photodiode amplification, and other high-precision instrumentation.
1. Low Input Bias Current: It boasts an ultra-low input bias current of 3 fA, which minimizes errors in high-impedance sensor applications.
2. High Input Impedance: The amplifier offers extremely high input impedance, essential for maintaining accuracy in high-impedance environments.
3. Low Offset Voltage: With a low offset voltage of 150 µV, it ensures high precision in signal amplification.
4. Low Noise: The amplifier provides low noise operation, essential for applications where signal integrity is critical.
5. Wide Supply Voltage Range: It operates over a wide supply voltage range from 4.75V to 12V, providing flexibility for various applications.
6. Rail-to-Rail Output: The LMP7721MA has a rail-to-rail output swing, allowing for maximum signal range utilization.
These features make the LMP7721MA suitable for precision applications such as electrometer-grade devices, photodiode amplification, and other high-precision instrumentation.
Pinout
The LMP7721MA is a precision operational amplifier known for its ultra-low input bias current. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a concise description of its pin functions:
1. V+ (Pin 8): Positive power supply voltage.
2. OUT (Pin 7): Output voltage pin where the amplified signal is available.
3. V- (Pin 4): Negative power supply voltage or ground.
4. IN- (Pin 2): Inverting input terminal.
5. IN+ (Pin 3): Non-inverting input terminal.
6. NC (Pins 1, 5, 6): No Connection. These pins are typically not used and are left unconnected.
The LMP7721MA is specifically designed for applications requiring minimal input bias current, such as photodiode amplification and high-impedance sensor applications.
1. V+ (Pin 8): Positive power supply voltage.
2. OUT (Pin 7): Output voltage pin where the amplified signal is available.
3. V- (Pin 4): Negative power supply voltage or ground.
4. IN- (Pin 2): Inverting input terminal.
5. IN+ (Pin 3): Non-inverting input terminal.
6. NC (Pins 1, 5, 6): No Connection. These pins are typically not used and are left unconnected.
The LMP7721MA is specifically designed for applications requiring minimal input bias current, such as photodiode amplification and high-impedance sensor applications.
Manufacturer
The LMP7721MA is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices across multiple industries. TI is one of the largest semiconductor companies in the world and is renowned for its development of analog chips, embedded processors, and other electronic components. The company serves a wide array of markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems, providing innovative solutions that enhance performance and efficiency.
Application
The LMP7721MA is a precision operational amplifier known for its ultra-low input bias current, making it ideal for applications requiring high accuracy and sensitivity. Key application areas include:
1. Electrochemical Sensors: Used in pH meters and gas detectors due to its ability to handle extremely low input currents.
2. Photodiode Amplifiers: Enhances performance in optical sensors by minimizing current leakage.
3. Medical Instrumentation: Suitable for ECG and EEG monitoring systems requiring minimal signal distortion.
4. Precision Current Measurement: Used in applications demanding high accuracy over a wide range of conditions.
5. Test Equipment: Essential in laboratory instruments where precision and low noise are critical.
1. Electrochemical Sensors: Used in pH meters and gas detectors due to its ability to handle extremely low input currents.
2. Photodiode Amplifiers: Enhances performance in optical sensors by minimizing current leakage.
3. Medical Instrumentation: Suitable for ECG and EEG monitoring systems requiring minimal signal distortion.
4. Precision Current Measurement: Used in applications demanding high accuracy over a wide range of conditions.
5. Test Equipment: Essential in laboratory instruments where precision and low noise are critical.
Package
The LMP7721MA is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is suitable for surface-mount applications and provides a compact form factor for integrating the component onto PCBs.
