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7955 Datasheet: 18V Amplifier – onsemi

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Component 7955

Amplifiers — Manufactured by onsemi

The LM393 series consists of dual independent precision voltage comparators designed for versatile operation in single or split-supply configurations. These devices feature a wide input common-mode range that includes ground, making them ideal for low-voltage sensing applications. With low input offset voltage and bias current, they provide high accuracy for signal processing tasks. The series is highly reliable, offering automotive-qualified variants (NCV prefix) and robust ESD protection. Their output compatibility with various logic families like TTL, CMOS, and DTL ensures seamless integration into diverse electronic systems.

-18V~-1V、1V~18V 0℃~+70℃ 1.3us 2 25nA 2V~36V 300ns 36V 400uA 5mV 5nA TTL、CMOS SOIC-8 Comparators ROHS

📦 SOIC-8
⚙️ Dual Precision Voltage Comparator
🌿 RoHS Compliant
  • Max Voltage (Vmax): 36V
  • Max Current (Imax): 20mA
  • Max Power (Pmax): 570mW
  • Operating Temperature: -40°C to +150°C
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✨ Key Features

Split-supply range ±1.0V to ±18V; wide single-supply range 2.0V to 36V; low current drain of 0.4mA; low input offset voltage (5mV max); low input bias current (25nA); output compatible with DTL, ECL, TTL, MOS, and CMOS; AEC-Q100 qualified variants available.

🎯 Applications

Consumer electronics, automotive control systems, industrial monitoring, battery management, and general-purpose voltage level detection.

⚡ Electrical Characteristics

Supply current 0.4mA (typ); response time 300ns (large signal); input offset voltage ±1.0mV to ±2.0mV (typ); output sink current 6mA (min); input bias current 20nA (typ).

⚠️ Absolute Maximum Ratings

Supply voltage 36V or ±18V; input differential voltage 36V; output voltage 36V; output short-circuit current 20mA; storage temperature -65°C to +150°C.

🔌 Pinout & Connection Diagram

Dual comparator configuration in 8-pin packages (PDIP-8, SOIC-8, Micro8). Pins include two non-inverting inputs, two inverting inputs, two outputs, VCC+, and GND/VCC-.

🔄 Equivalent & Alternative Components

  • LM293
  • LM2903
  • NCV2903

❓ Frequently Asked Questions

Can these comparators operate with a single supply?

Yes, they are designed to operate from a single supply voltage ranging from 2.0V to 36V, with an input common-mode range that includes ground.

What is the difference between the LM393 and the NCV2903?

The NCV2903 is an automotive-qualified version of the device, meeting AEC-Q100 standards and PPAP requirements, whereas the LM393 is intended for standard industrial and consumer applications.


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