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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR TSOT23-6
- Series：UltraFast™
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 6V
- Voltage - Input Offset (Max)：2.5mV @ 5V
- Current - Input Bias (Max)：6µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：9mA
- CMRR, PSRR (Typ)：65dB CMRR, 80dB PSRR
- Propagation Delay (Max)：13ns
- Hysteresis：7mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-6 Thin, TSOT-23-6
- Mounting Type：Surface Mount
- Supplier Device Package：TSOT-23-6
- Grade：-
- Qualification：-
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Overview
The LT1719IS6#TRMPBF is a single UltraFast comparator in a TSOT-23 package, operating on a single supply voltage from 2.7V to 6V. It features rail-to-rail CMOS/TTL compatible outputs and an internal hysteresis of approximately 4mV. The device achieves a propagation delay of 4.5ns at 20mV overdrive and 7ns at 5mV overdrive. Quiescent supply current is 4.2mA at 3V and 4.6mA at 5V. A dedicated shutdown pin reduces current consumption to less than 1μA when disabled.
Feature Summary
- UltraFast response with low propagation delay for high-speed signal processing
- Rail-to-rail output stage directly interfaces with TTL and CMOS logic levels
- Integrated internal hysteresis prevents oscillation with slow-moving input signals
- Low power shutdown mode extends battery life in portable applications
Applications
- High speed differential line receivers
- Crystal oscillator circuits
- Threshold detectors and discriminators
- Zero-crossing detectors
- Level translators
Procurement Notes
Verify the suffix TRMPBF indicates tape and reel packaging for the IS6 grade. Confirm the component meets the -40°C to 85°C industrial temperature range specification. Ensure the ordering information matches the manufacturer's official lead-free finish requirements before finalizing procurement orders.
Selection Notes
Select this part for designs requiring fast switching speeds within a compact surface-mount footprint. The TSOT-23 package limits separate input/output supplies compared to the SO-8 variant. Verify that the required supply voltage remains within the 2.7V to 6V operational window for optimal performance.
Part Context
This component belongs to the LT1719 family of UltraFast comparators designed for low-voltage operation. It shares architectural similarities with the dual/quad variants LT1720 and LT1721 but offers a single-channel solution optimized for space-constrained PCB layouts.
Replacement Considerations
LT1719CS6#TRPBF
FAQ
How does the internal hysteresis affect threshold detection?
The LT1719 includes approximately 4mV of internal hysteresis, which stabilizes the output state and prevents false triggering caused by noise or slowly moving input signals.
What is the function of the SHDN pin?
The SHDN pin controls the power state; pulling it low enables the comparator, while driving it high disables the device, reducing supply current to less than 1μA.
