Manufacturer Part Number
MAX921EPA
Manufacturer
Analog Devices
Introduction
The MAX921EPA is a precision low-power comparator with an integrated voltage reference.
Product Features and Performance
Precision comparison with built-in voltage reference
Single comparator element
CMOS and TTL compatible output
Low supply voltage range from 2.5V to 11V or ±1.25V to ±5.5V
Maximum input offset voltage of 10mV at 5V
Typical output current of 50mA
Ultra-low quiescent current of up to 5µA for energy conservation
Excellent Common-Mode Rejection Ratio (CMRR) and Power Supply Rejection Ratio (PSRR) of 80dB
Maximum propagation delay of 12µs
Built-in hysteresis of 50mV to improve noise immunity
Product Advantages
High precision with integrated voltage reference reduces external component count
Low power consumption suitable for battery-powered applications
High output drive capability
Robust noise performance with hysteresis and high CMRR/PSRR
Key Technical Parameters
Type: Comparator with Voltage Reference
Number of Elements: 1
Voltage - Supply: 2.5V ~ 11V, ±1.25V ~ 5.5V
Input Offset Voltage (Max): 10mV @ 5V
Output Current (Typ): 50mA
Quiescent Current (Max): 5µA
CMRR, PSRR (Typ): 80dB
Propagation Delay (Max): 12µs
Hysteresis: 50mV
Operating Temperature Range: -40°C ~ 85°C
Package / Case: 8-DIP
Mounting Type: Through Hole
Quality and Safety Features
Operates reliably over a wide temperature range of -40°C to 85°C
Standard 8-DIP package ensures easy integration into various circuit designs
Through Hole mounting for robust and secure PCB attachment
Compatibility
The device's outputs are compatible with CMOS and TTL logic levels.
Application Areas
Battery-powered devices
Threshold detectors
Zero-crossing detectors
Window comparators
Multivibrators
Product Lifecycle
The product status is marked as Obsolete
Availability of replacements or upgrades should be verified with the manufacturer
Several Key Reasons to Choose This Product
Ideal for precision low-power applications
Integrated voltage reference reduces design complexity
Ultra-low power consumption extends battery life
Stable operation with built-in hysteresis
High output drive capability of 50mA suitable for driving loads directly
Excellent noise rejection capabilities enhance system reliability
