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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8SO
- 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)：70dB CMRR, 80dB PSRR
- Propagation Delay (Max)：13ns
- Hysteresis：7mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LT1719CS8#TRPBF is an UltraFast comparator in an 8-lead SOIC package, operating from 2.7V to 6V with a typical propagation delay of 4.5ns at 20mV overdrive and 7ns at 5mV overdrive. It features rail-to-rail TTL/CMOS compatible outputs, internal hysteresis of approximately 3.5mV, and a low power shutdown mode drawing 0.1μA. The device supports separate input and output power supplies for flexible logic level translation.
Feature Summary
- UltraFast response time optimized for low voltage operation
- Rail-to-rail outputs directly interface to TTL and CMOS logic
- Internal hysteresis ensures stable performance with slow-moving signals
- Low power shutdown mode extends battery life in portable applications
Applications
- High speed differential line receiver
- Crystal oscillator circuits
- Level translators
- Threshold detectors and discriminators
- Zero-crossing detectors
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the CS grade corresponds to the commercial temperature range of 0°C to 70°C. Ensure the 8-lead SOIC footprint matches your PCB design constraints before finalizing procurement.
Selection Notes
Select this component for applications requiring fast switching speeds under single or dual supply voltages. The separate input and output supply pins allow independent optimization of analog input ranges and digital output levels. Consider the internal hysteresis for noise immunity without external components.
Part Context
This part belongs to the LT1719 family of UltraFast comparators. It is available in both 8-lead SOIC and 6-lead SOT-23 packages. The I-grade variant offers an extended temperature range, while the C-grade covers commercial applications. It serves as a high-speed alternative to standard comparators.
Replacement Considerations
Consult the datasheet for dual/quad versions like the LT1720/LT1721 if multiple channels are required. Verify pin compatibility and electrical specifications against any potential substitute parts to ensure signal integrity and timing requirements are met.
