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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- 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-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The MAX9022ASA+ is a dual-channel micropower analog comparator from the MAX9021/MAX9022/MAX9024 series, manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.5V to 5.5V or dual supplies of ±1.25V to ±2.75V. The device features a typical propagation delay of 3μs and consumes only 2.8μA of supply current per comparator across an operating temperature range of -40°C to +125°C. It includes 4mV of built-in hysteresis for noise immunity and supports rail-to-rail output swing with no phase reversal for overdriven inputs.
Feature Summary
- Ultra-low power consumption optimized for portable applications
- Built-in 4mV hysteresis prevents oscillations with slow-moving signals
- Rail-to-rail output swing capability
- No phase reversal when inputs are overdriven
Applications
- Battery-powered portable systems
- Mobile communications devices
- Sensor-signal detection circuits
- Photodiode preamplifiers
- Digital line receivers
Procurement Notes
Verify the specific package code S8+2 corresponds to the 8-pin SOIC configuration required for your PCB layout. Confirm that the lead-free/RoHS-compliant status indicated by the plus suffix meets your environmental compliance standards. Ensure the operating temperature range of -40°C to +125°C aligns with your system's thermal requirements before finalizing procurement.
Selection Notes
Select this component when space constraints necessitate an 8-pin surface-mount package like SOIC while requiring dual independent comparators. It is suitable for designs needing low quiescent current without sacrificing basic speed performance. Consider the internal hysteresis if external feedback resistors are undesirable. Verify input common-mode range compatibility with your signal sources.
Part Context
This part belongs to the MAX902x family of micropower comparators, which also includes single (MAX9021) and quad (MAX9024) variants. The family shares identical electrical characteristics but differs in channel count and package options such as SC70, SOT23, μMAX, and TSSOP. This specific model provides a balanced solution for dual-channel applications requiring small footprint and low power.
Replacement Considerations
Check for pin-compatible alternatives within the same MAX902x family, such as MAX9022AKA+T (SOT23-8) or MAX9022AUA+T (μMAX-8), if different package footprints are acceptable. Ensure any substitute maintains the 2.5V to 5.5V supply range and 3μs propagation delay specifications.
