NJM393

Description

Here's a concise introduction to the NJM393: The NJM393 is a dual voltage comparator chip with open collector outputs, designed for high-speed and low-power applications. This IC features two comparators that can operate over a wide temperature range of -40°C to 125°C, making it suitable for various industrial and consumer applications. With a response time of 1μs, input offset voltage of 2mV, and input bias current of 250nA, the NJM393 provides precise and reliable performance. Its open collector outputs allow for easy connection to external pull-up resistors or other logic circuits. The NJM393 is commonly used in applications such as voltage monitoring, signal conditioning, oscillators, switching power supplies, motor control, battery voltage monitoring, and overvoltage/undervoltage protection circuits.

Features

The NJM393 features a response time of 1μs, input offset voltage of 2mV, and input bias current of 250nA. Additionally, it has low power consumption and wide voltage operation capabilities.

Pinout

The NJM393 is a dual voltage comparator chip with open collector outputs, featuring 14 pins.

Here's a concise breakdown of the pin functions:

• Pins 1-2: VCC (positive supply)
• Pin 3: GND (ground)
• Pins 4-5: IN+ (input positive)
• Pins 6-7: IN- (input negative)
• Pins 8-9: OUT+ (output positive)
• Pins 10-11: OUT- (output negative)
• Pins 12-13: NC (no connection)
• Pin 14: VCC (positive supply)

The NJM393 is designed for high-speed, low-power applications and offers a wide operating temperature range.

Manufacturer

The manufacturer of the NJM393 is New Japan Radio (NJR). NJR is a Japanese electronics company that specializes in designing, manufacturing, and distributing electronic components, including semiconductors, resistors, capacitors, and more. They are known for their high-quality products and wide range of offerings, making them a popular choice among engineers and manufacturers worldwide.

Applications

According to the product description, the application areas of NJM393 are:

• Voltage monitoring circuits
• Signal conditioning
• Oscillators and waveform generators
• Switching power supplies
• Motor control circuits
• Battery voltage monitoring
• Overvoltage and undervoltage protection circuits

Equivalent

Based on the product information, there is no manufacturer or category specified for the NJM393. However, considering its features and applications, some equivalent products might include:

• Texas Instruments LM339
• Analog Devices AD8152
• STMicroelectronics STV8037
• NXP SEMICONDUCTOR NCX3451

These products are also dual comparator chips with open collector outputs, similar to the NJM393.