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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, 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：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The LTC1443CS#PBF is an ultralow power quad comparator with a built-in reference, housed in a 16-lead plastic SO package. 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 1.182V ±1%. Outputs are TTL/CMOS compatible, capable of sourcing up to 40mA continuously. 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 precision voltage reference
- TTL/CMOS compatible outputs with high source capability
- Elimination of crowbar switching currents during state transitions
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific suffix CS indicates the 16-lead Plastic SO package and commercial temperature range (0°C to 70°C). Confirm RoHS compliance status as indicated by the #PBF designation. Ensure compatibility with existing PCB footprints for the narrow small outline package before integration.
Selection Notes
Select this component when low power consumption is critical alongside the need for multiple comparator channels. The integrated reference simplifies design by removing external components. Consider the LTC1444 if programmable hysteresis is required instead of the fixed output configuration found in the LTC1443.
Part Context
This part belongs to the LTC1443/LTC1444/LTC1445 family of micropower comparators. While sharing similar core architecture, the LTC1443 specifically provides TTL/CMOS outputs and lacks the programmable hysteresis feature available in the LTC1444 and LTC1445 variants. It serves as a pin-compatible upgrade option for legacy MAX924 designs.
Replacement Considerations
Pin-compatible upgrades include the MAX924. Other family members like the LTC1444 offer additional hysteresis functionality but differ in output stage characteristics.
