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 1 W/VOLT REF 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：1
- 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)：20µA
- Current - Quiescent (Max)：4µA
- CMRR, PSRR (Typ)：40dB CMRR, 40dB PSRR
- Propagation Delay (Max)：15µs
- Hysteresis：50mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
Download product information
Overview
The LTC1440IMS8#TRPBF is an ultralow power single comparator with a built-in reference, housed in an 8-lead MSOP package. It operates from a single 2V to 11V supply or dual ±1V to ±5.5V supply. The device features a typical supply current of 2.1μA and includes a 1.182V ±1% reference output capable of driving up to 0.01μF without oscillation. Hysteresis is programmable via the HYST pin using two resistors. The CMOS output stage can continuously source up to 40mA and sink 5mA, eliminating cross-conducting currents during logic state changes.
Feature Summary
- Ultralow quiescent current consumption for battery-powered applications
- Built-in 1.182V precision voltage reference with bypass capability
- Programmable hysteresis controlled by external resistors on the HYST pin
- Glitch-free operation with no crowbar current during switching transitions
Applications
- Battery-powered system monitoring
- Micropower threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the IMS8 designation corresponds to the 8-lead MSOP plastic small outline package. Ensure the temperature grade matches the required operating range, as commercial and industrial variants exist within the family. Cross-reference the manufacturer part number with official distributor catalogs to confirm availability status.
Selection Notes
Select this component for designs requiring minimal static power draw while maintaining high output drive capability. The integrated reference simplifies biasing networks compared to standard comparators. Consider the input common mode range extending to the negative supply rail. Evaluate the propagation delay characteristics against the required signal response speed for the specific application context.
Part Context
This device belongs to the LTC1440/LTC1441/LTC1442 family of micropower comparators. While the LTC1441 and LTC1442 are dual-channel versions, the LTC1440 is a single-channel unit. The family shares similar electrical characteristics regarding supply voltage ranges and input leakage currents. Pin compatibility allows for upgrades from older MAX921/922/923 devices.
Replacement Considerations
The datasheet identifies pin-compatible upgrades for MAX921, MAX922, and MAX923 comparators. Verify that substitute components match the specific supply voltage requirements and output drive capabilities. Ensure the replacement maintains the ultralow power profile if battery life is a critical design constraint.
