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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF 6DFN
- Series：Over-The-Top®
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：with Voltage Reference
- Number of Elements：2
- Output Type：Open-Collector
- Voltage - Supply, Single/Dual (±)：1.4V ~ 18V
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：0.01µA @ 18V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：16µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：29µs
- Hysteresis：6.5mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：6-WFDFN Exposed Pad
- Mounting Type：Surface Mount
- Supplier Device Package：6-DFN (2x3)
- Grade：-
- Qualification：-
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Overview
The LT6700CDCB-1#TRMPBF is a micropower, low voltage dual comparator featuring an internal 400mV reference. It operates with supply voltages from 1.4V to 18V and draws only 6.5µA typical quiescent current at 5V. The device includes two comparators with open-collector outputs capable of sinking greater than 5mA. One input per comparator is available externally; the other is internally tied to the reference. This specific variant (suffix -1) provides one inverting and one noninverting external input, enabling window comparator configurations. It is housed in a 6-lead DFN package.
Feature Summary
- Integrates two micropower comparators with a fixed 400mV internal reference for simplified threshold detection.
- Features open-collector outputs that allow level translation by referencing load voltage up to 18V independent of supply.
- Includes internal hysteresis to ensure stable output operation and reduce design complexity.
- Supports over-the-top input capability, allowing inputs to exceed the supply voltage without damage.
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Relay driving
- Industrial control systems
Procurement Notes
Verify the specific suffix CDCB indicates the 2mm x 3mm DFN package and TRMPBF denotes tape and reel packaging. Confirm the temperature grade corresponds to commercial specifications (0°C to 70°C guaranteed performance). Ensure the -1 suffix matches the required input polarity configuration (one inverting, one noninverting) for your circuit topology.
Selection Notes
Select this component when low quiescent current is critical for battery life. The -1 variant is specifically chosen for window comparator applications due to its mixed input polarities. Consider the LT6700HV variant if input or output voltages must exceed 18V. Verify that the open-collector output interface aligns with the downstream logic requirements.
Part Context
This part belongs to the LT6700 family of micropower comparators. The DCB suffix identifies the 6-lead plastic DFN package. The -1 designation specifies the input polarity combination: Comparator A has a noninverting external input, while Comparator B has an inverting external input. Other variants include -2 (two inverting) and -3 (two noninverting).
Replacement Considerations
LT6700CDCB-1#TRPBF (standard reel instead of mini-reel)
FAQ
What is the function of the internal 400mV reference?
The internal 400mV reference serves as the threshold voltage for both comparators. One input of each comparator is internally connected to this reference, while the other is available externally for signal comparison.
How does the -1 suffix affect the pin configuration?
The -1 suffix indicates that Comparator A has a noninverting external input (+INA) and Comparator B has an inverting external input (-INB). This configuration allows the device to function as a window comparator.
