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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：2
- Output Type：CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 5.5V
- Voltage - Input Offset (Max)：1mV @ 5V
- Current - Input Bias (Max)：1pA @ 5V
- Current - Output (Typ)：8mA
- Current - Quiescent (Max)：130µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：450ns
- Hysteresis：±3mV
- Operating Temperature：-40°C ~ 85°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 MAX9042BEUA+ is a micropower, single-supply integrated circuit featuring two comparators and one precision voltage reference. It operates from a 2.5V to 5.5V supply with a typical quiescent current of 55µA. The device provides a 2.048V reference output with B-grade accuracy (1% initial accuracy, 100ppm/°C tempco). Comparators offer rail-to-rail inputs and outputs, ±3mV internal hysteresis, and a propagation delay of 400ns. It is housed in an 8-pin µMAX package.
Feature Summary
- Integrates dual comparators with a precision voltage reference for space-constrained designs
- Features rail-to-rail input and output stages extending beyond supply rails
- Includes internal ±3mV hysteresis to ensure clean switching on slow signals
- Minimizes supply current surges during switching to reduce power glitches
Applications
- Precision battery management systems
- Window comparator circuits
- IR receivers
- Level translators
- Digital line receivers
Procurement Notes
Verify the specific suffix 'E' indicates the µMAX package variant. Confirm the 'B' grade designation matches the required 1% initial accuracy and 100ppm/°C temperature coefficient specifications. Ensure the component meets RoHS compliance requirements for the intended manufacturing process.
Selection Notes
Select this part when dual comparison logic is required alongside a stable voltage reference within a small footprint. It is suitable for applications demanding low static current consumption under single-supply conditions. Consider the B-grade tolerance limits if higher precision than 1% is not necessary for the design.
Part Context
This component belongs to the MAX9038–MAX9043 family of micropower comparators combined with precision references. These devices are designed for battery-operated systems requiring low voltage operation. The MAX9042 specifically integrates two comparators and one reference, distinguishing it from single-comparator variants in the series.
Replacement Considerations
Direct substitutes include MAX9042AEUA+ (A-grade) and MAX9042BESA+ (SO package). Verify pin compatibility and electrical tolerances before substitution.
