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MAXIM INTEGRATED / ANALOG DEVICES MAX921CUA Microcontroller Comparator

The MAX921CUA+ is a low-voltage, single micropower comparator housed in an 8-pin µMAX package. It features an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS output stages capable of sourcing and sinking current. Designed for 3V or 5V single-supply applications, each comparator's input voltage can swing from the negative supply rail up to within 1.3V of the positive supply. Its output stage can continuously source 40mA, reducing power supply glitches and parasitic feedback during state changes. The device simplifies the addition of hysteresis through a dedicated HYST pin and two resistors, avoiding complex circuitry. It is suitable for use in battery-powered systems, threshold detection, window comparators, and oscillator circuits.

Authorized Distributors
Source:Newark
Part No:MAX921CUA+
Stock:597
Inv Date:06-05-2026
Price: Unit price: $10.4
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Source:DigiKey
Part No:MAX921CUA+
Stock:115
Inv Date:06-05-2026
Price: Unit price: $10.41
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Part No:MAX921CUA+
Stock:221
Inv Date:06-06-2026
Price: Unit price: $10.41
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Part No:MAX921CUA
Stock:0
Inv Date:06-06-2026
Price: N/A
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MAXIM INTEGRATED / ANALOG DEVICES MAX921CUA Microcontroller Comparator Specifications:

  • Package: 8-pin µMAX
  • Supply Voltage Range: 2.5V to 11V
  • Input Voltage Range: V- to V+ - 1V
  • Output: TTL/CMOS, sources up to 40mA
  • Internal Voltage Reference: 1.182V ±1%
  • Hysteresis: Programmable via HYST pin with two resistors
  • Input Offset Voltage: Typically 10mV
  • Maximum Power Dissipation: 330mW (derated above 70°C)
  • Operating Temperature Range: 0°C to +70°C
  • Propagation Delay: 12µs (overdrive 10mV)
  • Response Time: 3µs (at overdrive 100mV)
  • Power Consumption: Less than 4µA over temperature
  • Input Voltage Swing: From V- to V+ - 1.3V

Buy the Maxim Series MAX921 Microcontroller Comparator: MAX921CUA

Order the Maxim MAX921CUA today for high-performance, low-power comparison solutions suitable for battery-powered systems, threshold detection, and oscillator circuits. With internal voltage reference, programmable hysteresis, and a capable output stage sourcing 40mA, this comparator ensures precise switching and stable operation. Its compact 8-pin µMAX package simplifies integration into space-constrained circuits. Ideal for applications demanding minimal power consumption, it offers excellent speed, accuracy, and reliability in a versatile design that enhances your electronic projects with seamless performance.

Buy Maxim series MAX921CUA now and experience unmatched reliability and performance in low-voltage, high-current output comparators.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX921CUA?

You can click on the BUY or RFQ button to purchase MAX921CUA from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX921CUA?

You can download the MAX921CUA datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

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