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Product Detailed Parameters
- Description：IC COMPARATOR 4 W/VOLT REF 16SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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#TRPBF 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. Propagation delay is typically 12µs at 10mV overdrive. Input common mode range extends from the negative supply to within 1.3V of the positive supply.
Feature Summary
- Ultralow quiescent current consumption for battery-powered applications
- Built-in precision voltage reference output
- TTL/CMOS compatible outputs with high source current 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 #TRPBF indicates tape and reel packaging when ordering. Confirm the CS designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the 16-lead SO package footprint matches the target PCB layout requirements before finalizing procurement.
Selection Notes
Select this component for designs requiring multiple comparators with minimal power draw. The integrated reference simplifies circuit design by removing external components. Consider the 12µs propagation delay for timing-sensitive applications. Verify input voltage ranges align with the signal levels present in the specific application environment.
Part Context
This part belongs to the LTC1443/LTC1444/LTC1445 family of micropower comparators. While the LTC1443 provides TTL/CMOS outputs, the LTC1444 offers open-drain outputs with programmable hysteresis. The LTC1445 combines both features. All variants share similar low-power characteristics and internal reference structures.
Replacement Considerations
The MAX924 is listed as a pin-compatible upgrade alternative. Verify functional compatibility regarding output drive types and reference voltages before substitution.
