Supply original LM359MX/NOPB, Linear - Amplifiers - Instrumentation, Operational Amplifiers, Buffer Amplifiers, by Texas Instruments

The LM359MX/NOPB is a high-speed dual comparator integrated circuit (IC) manufactured by Texas Instruments. It is designed for applications requiring fast response times and high precision in signal comparison. Here’s a detailed description of its features and specifications:

General Features:

• Dual Comparator: The LM359 contains two independent, high-speed comparators, allowing for simultaneous comparison of two different input signals.
• High Speed: The device boasts a propagation delay of approximately 50 ns, making it suitable for high-frequency applications.
• Wide Supply Voltage Range: It operates over a supply voltage range of 3V to 30V, providing flexibility for various circuit designs.
• Low Input Offset Voltage: The input offset voltage is typically around 2 mV, ensuring accurate comparisons between input signals.
• Open-Collector Output: The comparators feature open-collector outputs, which allow for wired-AND configurations and easy interfacing with other logic levels.
• Temperature Range: The LM359 is rated for operation over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive applications.

Pin Configuration:

The LM359MX/NOPB is typically available in an 8-pin DIP (Dual In-line Package) or an 8-pin SOIC (Small Outline Integrated Circuit) package. The pin configuration includes:

• Inverting Inputs (Pin 2 and Pin 6): These pins receive the input signals that are to be compared.
• Non-Inverting Inputs (Pin 3 and Pin 5): These pins receive the reference voltages against which the inverting inputs are compared.
• Output Pins (Pin 1 and Pin 7): The outputs of the comparators are available at these pins, providing the result of the comparison.
• VCC (Pin 4): This pin is connected to the positive supply voltage.
• GND (Pin 8): This pin is connected to the ground.

Applications:

The LM359 is widely used in various applications, including:

• Signal Conditioning: It can be used to compare analog signals and generate digital outputs.
• Zero-Crossing Detectors: The device can detect when an input signal crosses zero volts, useful in phase-locked loops and motor control.
• Voltage Level Detectors: It can monitor voltage levels and trigger actions based on predefined thresholds.
• Pulse Width Modulation (PWM): The LM359 can be used in PWM circuits for controlling power to devices.

Electrical Characteristics:

• Supply Current: The typical supply current is around 1.5 mA per comparator, which is relatively low, making it power-efficient.
• Common-Mode Input Voltage Range: The common-mode input voltage range extends from VEE to VCC - 2V, allowing for a wide range of input signal levels.
• Output Voltage Swing: The output can swing close to the ground level when pulled low, making it suitable for interfacing with TTL logic.

Conclusion:

The LM359MX/NOPB from Texas Instruments is a versatile and high-performance dual comparator that is ideal for a variety of electronic applications requiring fast and accurate signal comparison. Its robust design, wide operating range, and low power consumption make it a popular choice among engineers and designers in the field of electronics.