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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：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#PBF is a single UltraFast comparator in an 8-lead SOIC package. It operates on a single supply from 2.7V to 6V or dual supplies up to ±5V (total input supply range 2.7V to 10.5V). Key electrical parameters include a propagation delay of 4.5ns at 20mV overdrive, quiescent current of 4.2mA at 3V, and rail-to-rail CMOS/TTL compatible outputs with 20mA drive capability. The device features internal hysteresis, a low-power shutdown mode drawing 0.1μA, and separate input/output power supplies for flexible logic interfacing.
Feature Summary
- UltraFast response time optimized for low voltage operation
- Rail-to-rail output directly interfaces to TTL and CMOS logic
- Separate input and output power supplies allow flexible analog and digital level accommodation
- 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 #PBF indicates lead-free finish and RoHS compliance. Confirm the CS8 designation corresponds to the commercial temperature range of 0°C to 70°C and the 8-lead plastic SO package. Ensure the ordering information matches the required package type and temperature grade for your design specifications.
Selection Notes
Select this component when high-speed comparison is required with low voltage single-supply operation. The separate supply pins are advantageous for translating between different analog input ranges and output logic levels. Consider the internal hysteresis for noise immunity with slow-moving signals and the shutdown pin for power management requirements.
Part Context
This part belongs to the LT1719 family of UltraFast comparators. It is available in both SO-8 and SOT-23 packages. The IS8 variant offers an extended industrial temperature range. For multi-channel needs, the LT1720/LT1721 provide dual/quad versions with similar performance characteristics.
Replacement Considerations
LT1719IS8#PBF provides the same functionality with an extended temperature range (-40°C to 85°C).
