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 4 W/VOLT REF 16SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：4
- Output Type：CMOS, Open-Drain, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 11V, ±1V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：0.015mA @ 5V
- Current - Quiescent (Max)：8.5µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：50mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
Download product information
Overview
The LTC1444IS#PBF is an ultralow power quad comparator with a built-in reference, manufactured by Analog Devices Inc. It operates from a single 2V to 11V supply or dual ±1V to ±5.5V supply. The device features less than 8.5µA supply current over temperature and includes an internal reference of 1.221V ±1%. It offers programmable hysteresis via the HYST pin and provides open-drain outputs. The input common mode range extends from the negative supply to within 1.3V of the positive supply.
Feature Summary
- Ultralow quiescent current consumption
- Built-in voltage reference output
- Programmable hysteresis capability
- Open-drain CMOS compatible outputs
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific IS suffix indicates the industrial temperature grade (-40°C to 85°C) and SOIC-16 package configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure compatibility with existing circuit layouts regarding the open-drain output requirement for pull-up resistors.
Selection Notes
Select this component when low power consumption is critical alongside precise threshold detection. The integrated reference eliminates external components, simplifying design. Consider the open-drain output nature for logic level interfacing. Verify that the required hysteresis can be accommodated within the specified voltage limits using external resistors.
Part Context
This part belongs to the LTC1443/LTC1444/LTC1445 family of micropower comparators. While sharing similar core specifications, the LTC1444 is distinguished by its open-drain output stage and programmable hysteresis feature, unlike the push-pull outputs of the LTC1443 and LTC1445.
Replacement Considerations
LTC1443IS#PBF and LTC1445IS#PBF are pin-compatible upgrades within the same family. Note that these alternatives feature push-pull outputs rather than open-drain, requiring circuit adjustments if output drive characteristics differ.
