Part Details for LM748CN by STMicroelectronics
Results Overview of LM748CN by STMicroelectronics
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LM748CN Information
LM748CN by STMicroelectronics is an Operational Amplifier.
Operational Amplifiers are under the broader part category of Amplifier Circuits.
Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.
Part Details for LM748CN
LM748CN CAD Models
LM748CN Part Data Attributes
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LM748CN
STMicroelectronics
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Datasheet
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LM748CN
STMicroelectronics
IC,OP-AMP,SINGLE,BIPOLAR,DIP,8PIN,PLASTIC
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Package Description | DIP-8 | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.33.00.01 | |
| Amplifier Type | OPERATIONAL AMPLIFIER | |
| Architecture | VOLTAGE-FEEDBACK | |
| Average Bias Current-Max (IIB) | 0.5 µA | |
| Bias Current-Max (IIB) @25C | 0.5 µA | |
| Common-mode Reject Ratio-Min | 70 dB | |
| Common-mode Reject Ratio-Nom | 90 dB | |
| Frequency Compensation | NO | |
| Input Offset Voltage-Max | 7500 µV | |
| JESD-30 Code | R-PDIP-T8 | |
| Length | 9.18 mm | |
| Low-Offset | NO | |
| Micropower | NO | |
| Neg Supply Voltage-Nom (Vsup) | -15 V | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | DIP | |
| Package Equivalence Code | DIP8,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | IN-LINE | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.33 mm | |
| Slew Rate-Min | 0.5 V/us | |
| Supply Current-Max | 2.8 mA | |
| Supply Voltage Limit-Max | 22 V | |
| Supply Voltage-Nom (Vsup) | 15 V | |
| Surface Mount | NO | |
| Technology | BIPOLAR | |
| Temperature Grade | COMMERCIAL | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Pitch | 2.54 mm | |
| Terminal Position | DUAL | |
| Voltage Gain-Min | 15800 | |
| Width | 7.62 mm |
LM748CN Frequently Asked Questions (FAQ)
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The maximum power dissipation of the LM748CN is dependent on the package type and ambient temperature. For the DIP package, the maximum power dissipation is 500mW at 25°C. However, this value can be derated to 250mW at 50°C and 125mW at 75°C. It's essential to ensure that the device does not exceed these power dissipation limits to prevent overheating and potential damage.
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While the LM748CN is an op-amp, it can be used as a comparator in certain applications. However, it's essential to note that the LM748CN is not optimized for comparator applications and may not provide the same level of performance as a dedicated comparator IC. Additionally, the LM748CN may oscillate or exhibit instability when used as a comparator, especially at high frequencies. It's recommended to use a dedicated comparator IC for comparator applications.
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The input impedance of the LM748CN is typically around 2MΩ, but this value can vary depending on the specific application and operating conditions. It's essential to consider the input impedance when designing the circuit to ensure that the op-amp can drive the required load and maintain stability.
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Yes, the LM748CN can be used in a single-supply configuration, but it's essential to ensure that the input signals are within the common-mode input voltage range of the op-amp. The LM748CN can operate with a single supply voltage as low as 5V, but the output voltage swing will be reduced. It's recommended to use a voltage divider or other level-shifting circuitry to ensure that the input signals are within the acceptable range.
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The slew rate of the LM748CN is typically around 0.5V/μs, which is relatively slow compared to other op-amps. This can affect the performance of the op-amp in high-frequency applications or when driving heavy loads. It's essential to consider the slew rate when designing the circuit to ensure that the op-amp can provide the required performance.