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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 5.5V, ±1.25V ~ 2.75V
- Voltage - Input Offset (Max)：1mV @ 5V
- Current - Input Bias (Max)：0.003µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：5µA
- CMRR, PSRR (Typ)：100dB CMRR, 80dB PSRR
- Propagation Delay (Max)：8µs
- Hysteresis：4mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-uMAX/uSOP
- Grade：-
- Qualification：-
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Overview
The MAX9022AUA+ is a dual micropower comparator in an 8-pin μMAX package. It operates from a single supply of 2.5V to 5.5V or dual supplies. The device consumes 2.8μA per comparator and features a typical propagation delay of 3μs. Internal hysteresis is 4mV, with an input offset voltage of ±1mV (typical) and ±8mV (max). Common-mode rejection ratio is 100dB, and power-supply rejection ratio is 80dB. Output short-circuit current is 50mA. Operating temperature range is -40°C to +125°C.
Feature Summary
- Micropower consumption optimized for portable applications
- Internal 4mV hysteresis prevents oscillations on slow-moving signals
- Rail-to-rail output swing eliminates phase reversal for overdriven inputs
Applications
- Battery-powered portable systems
- Mobile communications
- Sensor-signal detection
- Photodiode preamps
- Threshold detectors/discriminators
Procurement Notes
Verify the specific suffix 'AUA+' corresponds to the 8-pin μMAX package variant. Confirm RoHS compliance status as indicated by the '+' designation. Check availability through authorized distributors, as stock levels may be limited. Ensure the operating environment falls within the specified -40°C to +125°C temperature range.
Selection Notes
Select this component when low power consumption and small footprint are critical. The dual configuration suits designs requiring two independent comparison functions. Verify that the 3μs propagation delay meets system timing requirements. Consider the 4mV internal hysteresis for noise immunity without external components.
Part Context
Part of the MAX9021/MAX9022/MAX9024 family of micropower comparators. The MAX9022 specifically provides dual channels. Available in multiple packages including SOT23-8, SO, and μMAX-8. Designed for single-supply operation down to 2.5V.
Replacement Considerations
Direct pin-compatible alternatives within the same family include MAX9022AKA+ (SOT23-8) and MAX9022ASA+ (SOIC-8). Verify package dimensions and thermal characteristics when substituting between SOT23, SO, and μMAX formats.
FAQ
Does the MAX9022AUA+ have internal hysteresis?
Yes, it includes 4mV of built-in hysteresis to provide noise immunity.
What is the common-mode input voltage range?
The range extends from the negative supply to within 1.1V of the positive supply.
