ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC COMPARATOR 1 W/LATCH SOT6
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Bulk
- Type：with Latch
- Number of Elements：1
- Output Type：TTL
- Voltage - Supply, Single/Dual (±)：4.5V ~ 5.5V
- Voltage - Input Offset (Max)：1.6mV @ 5V
- Current - Input Bias (Max)：0.125µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：700µA
- CMRR, PSRR (Typ)：86.02dB CMRR, 86.02dB PSRR
- Propagation Delay (Max)：25ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-6
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-6
- Grade：-
- Qualification：-
Download product information
Overview
The MAX9109EUT-T is a single-channel, high-speed, low-power voltage comparator designed for single +5V supply operation. It features a propagation delay of 25ns with 10mV input overdrive and consumes only 350µA (1.75mW) per comparator. The device operates within a supply voltage range of 4.5V to 5.5V and includes an internal latch controlled by the LE pin. It offers a wide input common-mode range extending from 200mV below ground to within 1.5V of VCC, along with internal hysteresis for clean switching.
Feature Summary
- TTL-compatible outputs eliminate the need for external pullup circuitry
- Internal hysteresis ensures clean output switching for slow-moving signals
- Integrated latch allows storage of comparison results via the LE pin
Applications
- Battery powered systems
- A/D converters
- Line receivers
- Threshold detectors/discriminators
- Zero-crossing detectors
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and RoHS status. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component matches the required temperature range and electrical specifications for the target application before procurement.
Selection Notes
Select this comparator for applications requiring fast response times and low power consumption in single-supply environments. The integrated latch distinguishes it from other comparators in the series, making it suitable for sampling circuits where data retention is necessary. Verify that the TTL-compatible output aligns with downstream logic requirements.
Part Context
The MAX9109 is part of the MAX9107/MAX9108/MAX9109 family of high-speed, low-power voltage comparators. It serves as a single-channel upgrade to industry-standard comparators like the MAX909. While the MAX9107 and MAX9108 offer dual and quad configurations respectively, the MAX9109 provides a space-saving solution with unique latching capabilities in ultra-small packages.
Replacement Considerations
Public confirmed substitute part numbers: MAX909ESA+T
FAQ
How does the internal hysteresis function in the MAX9109?
The MAX9109 incorporates 2mV of internal hysteresis to prevent oscillation in the linear region caused by noise or parasitic AC feedback, ensuring clean output switching even with slow-moving input signals.
What is the function of the LE pin on the MAX9109?
The LE (Latch Enable) pin controls the internal latch. When LE is low, the latch is transparent and the comparator operates normally. When LE is high, the state of the comparator output is latched.
