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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5.5V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：1pA @ 5V
- Current - Output (Typ)：8mA
- Current - Quiescent (Max)：72µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：450ns
- Hysteresis：±3mV
- Operating Temperature：-40°C ~ 85°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 MAX9051AESA+ is a micropower, single-supply analog comparator integrated with a precision voltage reference. It operates within a supply voltage range of 2.7V to 5.5V and consumes only 40μA of quiescent supply current. The device features rail-to-rail inputs and outputs, with an input common-mode voltage range extending 250mV beyond the supply rails. It provides a fixed 2.500V reference output and includes internal ±3mV hysteresis for clean switching. The propagation delay is typically 400ns at 2.7V, and it is housed in an 8-pin SO package.
Feature Summary
- Integrates a low-power comparator with a precision voltage reference in a single package
- Features rail-to-rail inputs and outputs with extended common-mode voltage range
- Includes internal hysteresis to ensure clean output switching with slow-moving signals
- Utilizes a unique output stage design that minimizes supply current surges during switching
Applications
- Precision battery management systems
- Window comparator circuits
- IR receivers
- Level translators
- Digital line receivers
Procurement Notes
Verify the specific suffix 'A' indicates the A grade with 0.4% initial accuracy and 6ppm/°C temperature coefficient. Confirm the '+E' or '+' designation ensures lead-free and RoHS compliance. Check the datasheet for the exact pinout configuration in the 8-pin SO package to ensure compatibility with the target PCB footprint.
Selection Notes
Select this component when a single-supply operation between 2.7V and 5.5V is required alongside a stable voltage reference. It is suitable for battery-operated applications due to its 40μA quiescent current consumption. Choose this part over dual-comparator variants if only one comparison channel is needed. Ensure the load capacitance on the reference output does not exceed 4.7nF for stability.
Part Context
This device belongs to the MAX9038–MAX9053 family of micropower comparators and precision references. It shares architectural similarities with the MAX9050 and MAX9052 but differs in the number of channels and reference voltage. The MAX9051 specifically combines a single comparator with a 2.500V reference, distinguishing it from the 1.23V and 2.048V reference options available in other series members.
Replacement Considerations
Public confirmed substitute part numbers: MAX9051BESA+
