The part number " LMC6484AIMX/NOPB " corresponds to a product manufactured by Texas Instruments. This part is an operational amplifier (op-amp), specifically designed for low-voltage, low-power, precision applications. It typically comes in a 14-pin package in SOIC (Small Outline Integrated Circuit) form.
Pinout and Function Description (14-Pin SOIC)
Here is a detailed explanation of the pin functions for the LMC6484AIMX/NOPB based on the 14-pin SOIC (Small Outline Integrated Circuit) package:
Pin Number Pin Name Pin Function Description 1 Offset Null Connect to a potentiometer for offset voltage adjustment (can be used to minimize the input offset voltage). 2 Inverting Input Input for the signal to be inverted. It is the negative terminal of the op-amp. 3 Non-Inverting Input Input for the signal to be amplified. It is the positive terminal of the op-amp. 4 Output Output of the operational amplifier. This is where the amplified signal is provided. 5 Offset Null Connect to a potentiometer for offset voltage adjustment (similar to pin 1). 6 V- Negative power supply pin. Typically connected to ground or a negative voltage source. 7 V+ Positive power supply pin. Typically connected to a positive voltage source (e.g., +5V). 8 NC (No Connection) No internal connection. This pin is not used and can be left floating or unconnected. 9 Output Output of the operational amplifier. (Alternate output pin for high-precision models). 10 Inverting Input Inverting input for an additional op-amp configuration, as this part has 4 op-amps in one package. 11 Non-Inverting Input Non-inverting input for the second op-amp configuration. 12 Output Output of the second op-amp configuration. 13 V+ Positive supply pin for the second op-amp. 14 V- Negative supply pin for the second op-amp.Frequently Asked Questions (FAQ)
1. What is the operating voltage range of the LMC6484AIMX/NOPB?
The LMC6484AIMX/NOPB operates within a voltage range from ±1.5V to ±18V, or from a single supply of 3V to 36V.2. What is the typical supply current for the LMC6484AIMX/NOPB?
The typical supply current for the LMC6484AIMX/NOPB is around 250 µA per amplifier.3. Can the LMC6484AIMX/NOPB be used in a single-supply configuration?
Yes, the LMC6484AIMX/NOPB can be used with a single-supply voltage ranging from 3V to 36V.4. What is the typical input offset voltage for the LMC6484AIMX/NOPB?
The typical input offset voltage is around 25 µV.5. What is the maximum output voltage swing for the LMC6484AIMX/NOPB?
The output can swing within (V+ - 0.5V) to (V- + 0.5V), depending on the load conditions.6. Is the LMC6484AIMX/NOPB suitable for high-speed applications?
No, the LMC6484AIMX/NOPB is designed for precision low-power applications, not high-speed.7. Can the LMC6484AIMX/NOPB be used for differential signal amplification?
Yes, the device can be used for differential amplification, especially with the differential configuration of its inverting and non-inverting inputs.8. How does the LMC6484AIMX/NOPB handle power supply noise?
The LMC6484AIMX/NOPB is designed to reject power supply noise due to its high power supply rejection ratio (PSRR), making it ideal for low-noise applications.9. What is the bandwidth of the LMC6484AIMX/NOPB?
The bandwidth for the LMC6484AIMX/NOPB is typically 1 MHz at a gain of 1.10. Can the LMC6484AIMX/NOPB be used for audio signal processing?
Yes, due to its low noise and low distortion characteristics, the LMC6484AIMX/NOPB is suitable for audio applications.11. What is the maximum input voltage range for the LMC6484AIMX/NOPB?
The maximum input voltage range is typically from (V-) + 0.5V to (V+) - 0.5V.12. Does the LMC6484AIMX/NOPB have internal over-voltage protection?
No, it does not have internal over-voltage protection. The user needs to ensure that the input voltage stays within the recommended operating range.13. How should the offset null pins (pins 1 and 5) be connected?
The offset null pins can be connected to a potentiometer to adjust the input offset voltage. It is often used in precision measurement applications where minimal offset is critical.14. What is the typical output load drive capability of the LMC6484AIMX/NOPB?
The LMC6484AIMX/NOPB can drive a 10 kΩ load to ground with minimal distortion.15. Can the LMC6484AIMX/NOPB be used in low-power battery-operated designs?
Yes, it is specifically designed for low-power consumption and is suitable for battery-powered applications.16. How do I select the right compensation for the LMC6484AIMX/NOPB?
The LMC6484AIMX/NOPB does not require external compensation, as it is internally compensated for stable operation across a wide range of conditions.17. Is the LMC6484AIMX/NOPB prone to thermal runaway?
No, the LMC6484AIMX/NOPB is designed with a low quiescent current that minimizes the chances of thermal runaway.18. What is the common-mode rejection ratio (CMRR) for the LMC6484AIMX/NOPB?
The CMRR for the LMC6484AIMX/NOPB is typically 100 dB, which ensures excellent rejection of common-mode signals.19. Can I use the LMC6484AIMX/NOPB in instrumentation amplifiers?
Yes, the LMC6484AIMX/NOPB is suitable for use in instrumentation amplifiers due to its low noise and high precision.20. How should I handle unused op-amps in the LMC6484AIMX/NOPB?
Unused op-amps should have their inputs tied to a defined voltage (e.g., ground) and outputs left floating to avoid unwanted oscillations or interference.These answers should help you better understand the characteristics and usage of the LMC6484AIMX/NOPB op-amp.