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Analog Devices Inc. LT6700HS6-3#TRPBF
- Part No.:
- LT6700HS6-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6700HS6-3#TRPBF.pdf
- Description:
- IC COMPARATR 2 W/VOLT REF TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,308
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Product details
Overview
LT6700HS6-3#TRPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, designed for low-voltage system monitoring in harsh environments. It features two noninverting inputs, 6.5µA supply current at 5V, ±10nA max input bias current, and operates from 1.4V to 18V supply across –40°C to 125°C. It enables battery voltage detection and threshold monitoring in automotive power rails.
For engineers reviewing the LT6700HS6-3#TRPBF datasheet, LT6700HS6-3#TRPBF pinout, LT6700HS6-3#TRPBF application, or LT6700HS6-3#TRPBF equivalent, this page delivers verified electrical specifications, temperature-grade packaging details, open-collector output behavior, and precise input polarity configuration for window-comparator or dual-threshold designs.
Technical Context
The LT6700HS6-3#TRPBF implements two independent comparators, each with one externally accessible noninverting input (+INA, +INB) and the other internally tied to a precision 400mV reference. Hysteresis of 6.5mV (typ) is built-in to prevent oscillation near threshold crossings.
Its open-collector outputs (OUTA, OUTB) support level translation up to 18V regardless of VS, sinking >5mA over temperature. The device uses Over-The-Top® input architecture, allowing inputs to operate down to GND and up to 18V independently of supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - supports direct connection to single-cell LiFePO₄ or multi-cell alkaline systems without regulation. |
| Quiescent Current | 6.5µA typ at 5V - enables multi-year battery life in always-on monitoring circuits. |
| Reference Accuracy | ±1.25% max total threshold error at 25°C - ensures reliable trip-point stability without external trimming. |
| Hysteresis | 6.5mV typ - eliminates noise-induced chatter on slow-rising signals like battery discharge curves. |
| Input Bias Current | ±10nA max - permits high-impedance sensing networks (e.g., 1MΩ dividers) without significant offset error. |
| Operating Temp Range | –40°C to 125°C - qualified for under-hood automotive and industrial control applications. |
| Output Sink Capability | >5mA guaranteed - directly drives LEDs, small relays, or logic-level MOSFET gates without buffer stages. |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, lead-free finish. Pin 7 (exposed pad) not present in S6 package - only applies to DFN variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA | Open-collector output of Comparator A | Sinks current when +INA exceeds 400mV; off-state voltage floats up to 18V, enabling pull-up to separate rail. |
| GND | Ground reference and reference low-side | Common return for internal 400mV reference and all circuitry; must be low-impedance for accuracy. |
| +INA | Noninverting input of Comparator A | Accepts input from 0V to 18V regardless of VS; used with internal 400mV reference for high-side threshold detection. |
| OUTB | Open-collector output of Comparator B | Independent of OUTA; allows dual-threshold or redundant monitoring with separate loads. |
| VS | Core supply voltage | Powers comparator core and reference; decoupling capacitor required close to pin for stability. |
| +INB | Noninverting input of Comparator B | Identical function to +INA; enables true dual noninverting threshold detection (e.g., upper/lower battery limits). |
Key Features
| Feature | Design Value |
|---|---|
| Dual noninverting inputs | Enables simultaneous high-side threshold detection on two independent signals without inversion circuitry. |
| Integrated 400mV reference | Eliminates need for external precision reference IC or resistor divider, reducing BOM count and layout area. |
| Over-The-Top® input operation | Allows input voltages down to GND and up to 18V even when VS = 1.4V - ideal for monitoring unregulated battery rails. |
| Internal hysteresis | 6.5mV typical - removes requirement for external positive feedback resistors, simplifying design and improving repeatability. |
| AEC-Q100 qualified | Rated for automotive applications per Grade H (–40°C to 125°C), including stress testing for reliability in vehicle ECUs. |
Applications
| Battery Voltage Monitor | Redundant Power Rail Detector |
|---|---|
Use Scenario: Monitoring 2-cell alkaline battery voltage (1.8V–3.2V) in handheld medical devices to trigger low-battery warning before shutdown. IC Role / Device Role / Timing Role: LT6700HS6-3#TRPBF compares divided battery voltage against 400mV reference using +INA and +INB to set upper (2.8V) and lower (2.0V) thresholds. Use Value: Micropower operation extends runtime; internal hysteresis prevents false alarms during transient load dips. | Use Scenario: Detecting failure of primary 5V DC/DC converter in automotive body control module by monitoring backup 5V rail. IC Role / Device Role / Timing Role: LT6700HS6-3#TRPBF uses +INA to monitor main rail and +INB to monitor backup rail, driving separate fault flags via OUTA/OUTB. Use Value: Dual independent comparators eliminate need for two discrete devices; wide temp range ensures reliability under hood. |
| Window Comparator for Sensor Bias | Industrial PLC Input Thresholding |
Use Scenario: Validating that RTD sensor excitation current remains within ±5% tolerance by monitoring voltage across sense resistor. IC Role / Device Role / Timing Role: LT6700HS6-3#TRPBF configures +INA and +INB as upper/lower bounds around nominal 400mV drop, generating in-window signal. Use Value: Fixed internal reference avoids drift from external references; noninverting inputs simplify interface with current-sense amps. | Use Scenario: Converting 0–10V analog input from field sensor into clean digital status for PLC I/O card with noise immunity. IC Role / Device Role / Timing Role: LT6700HS6-3#TRPBF compares scaled input against 400mV reference (via resistor divider) to generate logic-compatible output. Use Value: Open-collector outputs interface directly with 24V PLC backplane; 125°C rating supports convection-cooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator with reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6700IS6-3#TRPBF | Same functionality but rated for –40°C to 85°C industrial range; lower max junction temperature (125°C vs 150°C). | Not qualified for under-hood automotive use; suitable for indoor industrial controllers or consumer electronics. | Select when ambient temperature stays below 85°C and AEC-Q100 compliance is unnecessary. |
| TLV3702IDR | Single-supply dual comparator with 1.24V reference; no internal hysteresis; higher quiescent current (1.8µA vs 6.5µA); no Over-The-Top® input capability. | Requires external hysteresis network and level-shifting for high-side sensing; limited to VS-referenced inputs. | Choose only if reference voltage flexibility (1.24V) outweighs micropower and high-side sensing advantages of LT6700HS6-3#TRPBF. |
Compared with LT6700IS6-3#TRPBF, the LT6700HS6-3#TRPBF provides extended high-temperature operation and automotive qualification; compared with TLV3702IDR, it delivers superior input voltage range, lower power, and integrated hysteresis-critical for robust battery and power-rail monitoring.
Availability
LT6700HS6-3#TRPBF is available at Aetrix Electronics and suitable for automotive ECU monitoring, industrial sensor interfaces, and battery-powered handheld instruments requiring stable component supply across extended temperature ranges.
Supply support for LT6700HS6-3#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT6700 family was designed specifically for ultra-low-power, high-accuracy voltage monitoring in space-constrained and thermally demanding applications-emphasizing integrated references, wide supply range, and rugged input architecture.
FAQ
What is the maximum input voltage allowed on +INA or +INB pins of the LT6700HS6-3#TRPBF?
The LT6700HS6-3#TRPBF supports input voltages from –0.3V to 18V on +INA and +INB, independent of the VS supply voltage. This Over-The-Top® capability allows direct monitoring of unregulated battery or power rails-even when VS is as low as 1.4V. Absolute maximum rating is 18.5V relative to GND.
Does the LT6700HS6-3#TRPBF require external hysteresis components?
No, the LT6700HS6-3#TRPBF includes internal hysteresis of 6.5mV (typical), eliminating the need for external positive feedback resistors. This simplifies PCB layout, improves consistency across units, and ensures stable switching behavior near the 400mV reference threshold without added design effort.
Can the LT6700HS6-3#TRPBF be used in automotive applications?
Yes, the LT6700HS6-3#TRPBF is AEC-Q100 qualified for automotive applications and specified over –40°C to 125°C. Its robust input architecture, micropower consumption, and integrated reference make it suitable for battery monitoring, power rail supervision, and fault detection in engine control units and body electronics.
What is the output stage configuration of the LT6700HS6-3#TRPBF?
The LT6700HS6-3#TRPBF features two independent open-collector outputs (OUTA and OUTB). Each can sink >5mA over temperature and tolerate off-state voltages up to 18V-enabling flexible level translation, wired-OR logic, or direct drive of LEDs, optocouplers, or small relays without additional transistors.
How does the LT6700HS6-3#TRPBF differ from the LT6700-1 or LT6700-2 variants?
The LT6700HS6-3#TRPBF has two noninverting inputs (+INA, +INB), whereas LT6700HS6-1#TRPBF offers one inverting and one noninverting input (suitable for window comparator topology), and LT6700HS6-2#TRPBF has two inverting inputs. All share identical supply range, reference, hysteresis, and temperature rating-but input polarity determines external circuit topology.
LT6700HS6-3#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- Over-The-Top®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 1.4V ~ 18V
- :
- -
- Voltage - Input Offset (Max):
- 0.01µA @ 18V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 19µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 13.5mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-6
LT6700HS6-3#TRPBF FAQ
1.How can I place an order for LT6700HS6-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700HS6-3#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LT6700HS6-3#TRPBF reliable?
The price and inventory of LT6700HS6-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700HS6-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6700HS6-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700HS6-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700HS6-3#TRPBF?
LT6700HS6-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700HS6-3#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LT6700HS6-3#TRPBF?
For technical support, including LT6700HS6-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700HS6-3#TRPBF requirements.
6.How does Aetrix verify that LT6700HS6-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6700HS6-3#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LT6700HS6-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6700HS6-3#TRPBF?
All LT6700HS6-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700HS6-3#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LT6700HS6-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6700HS6-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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