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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8SO
- Series：UltraFast™
- Mfr：Analog Devices Inc.
- Package：Tube
- 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：-40°C ~ 85°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 LT1719IS8 is a single UltraFast comparator in an 8-lead SOIC package, rated for industrial temperatures from -40°C to +85°C. It operates on a supply voltage range of 2.7V to 6V with a typical quiescent current of 4.6mA at 3V and 9mA at 5V. The device features rail-to-rail CMOS/TTL compatible outputs capable of sourcing or sinking 20mA. Key electrical parameters include a propagation delay of 4.5ns at 20mV overdrive, 7ns at 5mV overdrive, and an input offset voltage maximum of 2.5mV.
Feature Summary
- UltraFast response time optimized for low voltage operation
- Rail-to-rail output stage directly interfaces with TTL and CMOS logic
- Integrated internal hysteresis prevents oscillation with slow-moving signals
- Low power shutdown mode reduces consumption to approximately 0.1μA
Applications
- High speed differential line receivers
- Crystal oscillator circuits
- Threshold detectors and discriminators
- Zero-crossing detectors
- Level translators
Procurement Notes
Verify the specific suffix IS8 confirms the industrial temperature grade (-40°C to +85°C) and SOIC-8 package. Confirm the #PBF designation indicates lead-free finish compliance. Ensure the ordering code matches the required tape and reel or tube packaging format for your assembly process.
Selection Notes
Select this component when high-speed switching is required within a single supply voltage range. The separate input and output supply pins in the SO-8 package allow flexible configuration for different analog input ranges and output logic levels. Consider the internal hysteresis for noise immunity without external components.
Part Context
This part belongs to the LT1719 family of UltraFast comparators designed for portable and battery-powered applications due to low power consumption. The IS8 variant specifically denotes the industrial temperature range extension compared to the commercial CS8 grade. It serves as a single-channel solution within a lineup that includes dual and quad variants like the LT1720 and LT1721.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
