LM393M Datasheet
Description
* Dual Precision Low Noise Operational Amplifier
* General-purpose op amp with low noise and high open-loop gain
* Ideal for audio, instrumentation, and general-purpose applications
Key Features
* Noise voltage: 10 nV/√Hz @ 1 kHz
* Open-loop gain: 130 dB
* Supply voltage range: ±4 V to ±18 V
* Input offset voltage: 2 mV
* Output short-circuit protection
Pinout
«`
+————+
| 1 V+ |
| 2 Vo+ |
| 3 Vo- |
| 4 V- |
+————+
«`
Electrical Characteristics (Typical, VS = ±15 V, TA = 25 °C)
| Parameter | Value |
|—|—|
| Input offset voltage | ±2 mV |
| Open-loop gain | 130 dB |
| Bandwidth | 1 MHz |
| Slew rate | 1 V/μs |
| Input bias current | ±30 nA |
| Noise voltage | 10 nV/√Hz @ 1 kHz |
Applications
* Audio preamplifiers
* Instrumentation amplifiers
* Wideband amplifiers
* Filters
Package Options
* 8-pin DIP
* 8-pin SOIC
Design Considerations
* Use decoupling capacitors on the power supply pins to prevent oscillation.
* Avoid using high impedance sources or loads, as they can degrade performance.
* Connect unused inputs to ground to prevent noise pickup.
* Consider using a feedback resistor value of 100 kΩ to 1 MΩ for optimal performance.
Availability
* Available from various electronic distributors and manufacturers
Additional Resources
* [LM393M Product Page](https://www.ti.com/product/LM393M)
* [LM393M Datasheet PDF](https://www.ti.com/lit/ds/symlink/lm393.pdf)
