Maxim Integrated MAX921CSA Low-Power, High-Speed Single-Supply Comparators

The MAX921CSA from Maxim Integrated is a cutting-edge, low-power comparator designed for a wide range of applications requiring fast response times and low power consumption. This precision device operates from a single +2.5V to +11V supply or a dual ±1.25V to ±5.5V supply, making it versatile for both battery-powered and conventional circuits.

Featuring a proprietary high-speed bipolar process, the MAX921CSA offers a fast propagation delay of typically 80ns, while maintaining low power consumption with a quiescent current of just 750µA. This combination of speed and power efficiency makes it an ideal choice for portable and battery-operated equipment where power conservation is critical.

The comparator is designed with a latch function that enables the user to hold the comparator's output in a predefined state, providing additional flexibility in timing-sensitive applications. It also includes an internal hysteresis that prevents output toggling due to small input noise, enhancing the stability of the device.

The MAX921CSA comes in a compact 8-pin SOIC package, which is conducive to space-constrained applications. Its operating temperature range of 0°C to +70°C allows for reliable performance in a variety of environments.

Key features of the MAX921CSA include:

• Low power consumption: 750µA quiescent current
• Single-supply operation: +2.5V to +11V or dual-supply operation: ±1.25V to ±5.5V
• Fast propagation delay: typically 80ns
• Internal hysteresis for noise immunity
• Output latch function
• Compact 8-pin SOIC package
• Operating temperature range: 0°C to +70°C

The MAX921CSA is ideal for applications such as voltage and current sensing, threshold detection, level shifting, and window comparators. With its advanced features and robust design, it provides a reliable, high-performance solution for designers looking to optimize their systems for speed and power efficiency.