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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 3DFN
- Series：Over-The-Top®
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：General Purpose
- Number of Elements：1
- 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)：14µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：29µs
- Hysteresis：11mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：3-WFDFN Exposed Pad
- Mounting Type：Surface Mount
- Supplier Device Package：3-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LT6703CDC-3 is a micropower, low voltage comparator featuring an internal 400mV reference. It operates on a single supply from 1.4V to 18V with a typical quiescent current of 6.5μA at 5V. The device utilizes a noninverting input configuration and provides an open-collector output capable of sinking up to 40mA. It includes built-in hysteresis for stable operation and supports Over-The-Top inputs ranging from -0.3V to 18V relative to ground. The component is housed in a compact 3-lead DFN package and is specified for commercial temperature ranges.
Feature Summary
- Integrates a precise 400mV internal reference with the comparator circuitry
- Supports wide supply voltage operation from 1.4V to 18V
- Features Over-The-Top input capability allowing voltages beyond the supply rail
- Includes internal hysteresis to ensure noise immunity and stable switching
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Relay driving circuits
- Industrial control systems
Procurement Notes
Verify the specific suffix CDC-3 corresponds to the commercial temperature grade (0°C to 70°C) and the DC package outline when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life statuses for this specific variant. Ensure the ordering code matches the required lead-free finish and tape-and-reel specifications provided by Analog Devices.
Selection Notes
Select the LT6703CDC-3 when a noninverting input polarity is required for the application logic. This variant is suitable for designs needing level translation between high-voltage signals and low-voltage logic due to its open-collector output. Consider the commercial temperature range limits if the operating environment exceeds 70°C, opting for industrial or automotive grades if necessary.
Part Context
This component belongs to the LT6703 family of micropower comparators manufactured by Analog Devices Inc. The family includes variants with different input polarities (-2 for inverting, -3 for noninverting) and extended voltage ratings (HV series). The CDC-3 specifically denotes the commercial grade version packaged in the small DFN form factor.
Replacement Considerations
LT6703IDC-3#TRMPBF
FAQ
What is the difference between the LT6703-2 and LT6703-3 versions?
The primary difference is the polarity of the available external comparator input. The LT6703-2 has an inverting input, while the LT6703-3 has a noninverting input.
Can the input voltage exceed the supply voltage?
Yes, the device features Over-The-Top inputs that can range from -0.3V to 18V relative to ground, regardless of the supply voltage used.
