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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/LATCH 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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+T is a single-channel high-speed analog comparator from the MAX914x family, manufactured by Analog Devices. It operates on a single supply voltage ranging from 2.7V to 5.5V and features rail-to-rail input capability with an input common-mode range extending beyond both power-supply rails. The device provides CMOS/TTL-compatible outputs that swing within 300mV of either supply rail without external pullup circuitry. Key electrical parameters include a propagation delay of 40ns at 10mV overdrive, a typical supply current of 165µA per comparator at 3V, and a low offset voltage of 2mV. It incorporates internal hysteresis for clean switching and includes latch enable and shutdown functions.
Feature Summary
- Features integrated latch enable and device shutdown control for flexible system management.
- Provides rail-to-rail input voltage range extending beyond supply rails for maximum dynamic range.
- Delivers fast 40ns propagation delay combined with low power consumption suitable for portable applications.
- Includes internal hysteresis to ensure stable output switching even with slow-moving input signals.
Applications
- Line Receivers
- Battery-Powered Systems
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
- Sampling Circuits
Procurement Notes
Verify the specific package variant, as the MAX9141 is available in SOT23-8 and SOIC-8 configurations. Confirm the suffix indicates tape-and-reel packaging if required for automated assembly. Ensure the operating temperature grade matches the application requirements, typically E-grade for -40°C to +85°C. Cross-reference the manufacturer part number with official distributor catalogs to confirm current availability status and lead times.
Selection Notes
Select this component when a single comparator with latch functionality and shutdown mode is required. It serves as a direct upgrade to older industry-standard comparators like the MAX941, offering higher speed and lower power. Consider the internal hysteresis value if external noise filtering is insufficient. Verify that the 4mA output drive capability meets the load requirements of the downstream logic interface.
Part Context
The MAX9141 belongs to the MAX914x series of high-speed, low-power comparators optimized for 3V and 5V systems. This family includes single (MAX9140/MAX9141), dual (MAX9142), and quad (MAX9144) channel variants. The MAX9141 specifically adds latch and shutdown capabilities not present in the basic MAX9140 model, making it distinct within the series for applications requiring data storage or power conservation.
Replacement Considerations
The datasheet identifies the MAX941, MAX942, and MAX944 as legacy comparators that this device upgrades. No other specific substitute part numbers are documented in the provided source material.
