LT6703HVIS5-3#TRPBF: High-Performance Comparator with Built-In 400mV Reference | Analog Devices
LT6703HVIS5-3#TRPBF: High-Performance Comparator with Built-In 400mV Voltage Reference
The LT6703HVIS5-3#TRPBF by Analog Devices Inc. is a precision comparator IC designed for demanding applications requiring high accuracy and reliability. Part of the Linear - Comparators family, this integrated circuit combines a low-power comparator with a stable 400mV voltage reference, making it ideal for voltage monitoring, power management, and industrial control systems.
Product Overview
Housed in a compact TSOT-23-5 package, the LT6703HVIS5-3#TRPBF is optimized for space-constrained designs. Its open-collector output and wide supply voltage range (1.4V to 18V) provide exceptional flexibility, while its ultra-low quiescent current (15 A) ensures energy efficiency for battery-powered devices.
Key Features and Benefits
- Integrated 400mV Voltage Reference: Eliminates the need for external reference components, reducing BOM cost and PCB footprint.
- Wide Operating Voltage Range (1.4V-18V): Supports diverse applications from low-voltage battery systems to industrial power supplies.
- Low Power Consumption: Just 15 A quiescent current extends battery life in portable devices.
- Fast Response Time: 29 s propagation delay enables real-time signal processing.
- Built-in Hysteresis (11.5mV): Enhances noise immunity in electrically noisy environments.
- Extended Temperature Range (-40 C to +125 C): Reliable operation in harsh industrial conditions.
- Open-Collector Output: Allows flexible interfacing with various logic levels and higher voltage systems.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Reference Voltage | 400mV 1.5% |
| Input Offset Voltage | 3.5mV max |
| Input Bias Current | 10nA @ 18V |
| Supply Current | 15 A typical |
| Propagation Delay | 29 s max |
| Output Sink Current | 5mA min |
| Operating Temperature | -40 C to +125 C |
| Package | TSOT-23-5 |
Applications
The LT6703HVIS5-3#TRPBF excels in numerous applications:
1. Battery-Powered Systems
Ideal for battery voltage monitoring in: - Portable medical devices - IoT sensors - Wearable electronics - Energy harvesting systems
2. Power Management
Perfect for: - Voltage supervisors - Power supply monitoring - Over-voltage/under-voltage protection - DC/DC converter control
3. Industrial Automation
Robust performance for: - Process control systems - Motor control circuits - Sensor interface modules - Safety monitoring systems
4. Consumer Electronics
Compact solution for: - Smartphone power management - Tablet battery charging circuits - Digital camera systems - Smart home devices
Design Considerations
PCB Layout Guidelines
For optimal performance: 1. Place decoupling capacitors (0.1 F) close to V+ pin 2. Minimize trace lengths to comparator inputs 3. Use ground plane for noise reduction 4. Keep high-frequency signals away from sensitive inputs
Thermal Management
While the TSOT-23-5 package has excellent thermal characteristics: - Ensure adequate airflow in high-temperature environments - Consider thermal vias for high-current applications - Monitor junction temperature in continuous operation
Comparison with Similar Devices
| Feature | LT6703HVIS5-3#TRPBF | Competitor A | Competitor B |
|---|---|---|---|
| Reference Voltage | 400mV | None | 500mV |
| Supply Range | 1.4V-18V | 2V-16V | 1.8V-5.5V |
| Quiescent Current | 15 A | 25 A | 8 A |
| Package | TSOT-23-5 | SOT-23-6 | SC-70 |
| Hysteresis | 11.5mV | None | 5mV |
Frequently Asked Questions
Q1: Can the LT6703HVIS5-3#TRPBF operate from a single lithium-ion battery?
Yes, with its 1.4V minimum supply voltage, it works well with single-cell Li-ion batteries (2.7V-4.2V).
Q2: How does the built-in hysteresis improve performance?
The 11.5mV hysteresis prevents output oscillation when input signals are near the threshold, ensuring clean switching in noisy environments.
Q3: What's the typical accuracy of the 400mV reference?
The reference maintains 1.5% accuracy over the full temperature range, with 1% typical at 25 C.
Q4: Can multiple comparators share the same reference?
No, each LT6703HVIS5-3#TRPBF contains its own dedicated reference for optimal stability.
Purchasing and Resources
The LT6703HVIS5-3#TRPBF is available through authorized Analog Devices distributors. For design support: - Download the full datasheet - Access design tools - Request evaluation boards
Conclusion
The LT6703HVIS5-3#TRPBF represents Analog Devices' commitment to high-performance analog solutions. Its unique combination of precision voltage reference, wide operating range, and ultra-low power consumption makes it an exceptional choice for designers across industries. Whether you're developing battery-powered IoT devices or robust industrial control systems, this comparator delivers reliable performance in the smallest possible footprint.
For engineers seeking to optimize their designs, the LT6703HVIS5-3#TRPBF offers the perfect balance of features, performance, and value - a true testament to Analog Devices' engineering excellence in analog semiconductors.