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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/LATCH 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：with Latch
- Number of Elements：1
- Output Type：CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5.5V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.32µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：320µA
- CMRR, PSRR (Typ)：81.94dB CMRR, 81.94dB PSRR
- Propagation Delay (Max)：40ns
- Hysteresis：1.5mV
- 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 MAX9141ESA+ is a single-channel high-speed comparator designed for 3V and 5V single-supply systems. It features rail-to-rail input voltage range, 40ns propagation delay at 10mV overdrive, and low supply current of 150μA per comparator. The device includes latch enable and shutdown functions, CMOS/TTL-compatible outputs, and internal hysteresis. Operating temperature range is -40°C to +85°C.
Feature Summary
- Rail-to-rail input voltage range extending beyond power-supply rails
- Internal latch enable and device shutdown functionality
- CMOS and TTL logic interface compatibility without external pullups
- Internal hysteresis for clean output switching with slow-moving signals
Applications
- Line Receivers
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
- Sampling Circuits
Procurement Notes
Verify the specific suffix 'ESA+' corresponds to the 8-pin SO package and E-grade (-40°C to +85°C) temperature rating. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the ordering code matches the exact pinout and electrical specifications required for the design.
Selection Notes
Select this component when a single comparator with latch and shutdown capabilities is needed in a small 8-pin package. It serves as a lower-power upgrade to older industry-standard comparators. Consider the MAX9140 if latch/shutdown features are unnecessary, or the MAX9142/44 for multiple channels.
Part Context
Part of the MAX914x family of high-speed, low-power comparators optimized for 3V and 5V supplies. The MAX9141 specifically adds latch and shutdown control to the basic comparator function found in the MAX9140. It replaces legacy parts like the MAX941 while offering improved speed and power efficiency.
Replacement Considerations
MAX9140 (lacks latch/shutdown), MAX941 (legacy replacement)
FAQ
How does the internal hysteresis affect switching?
The device includes 1.5mV of internal hysteresis to prevent oscillation caused by noise or parasitic feedback when input voltages are equal, ensuring clean output transitions.
What is the effect of the SHDN pin on the MAX9141?
Driving the SHDN pin low places the device in shutdown mode, reducing supply current to less than 12μA and putting the output in a high-impedance state.
