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Analog Devices Inc. LT6700CS6-2#TRMPBF
- Part No.:
- LT6700CS6-2#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6700CS6-2#TRMPBF.pdf
- Description:
- IC COMPARATR 2 W/VOLT REF TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,416
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Product details
Overview
LT6700CS6-2#TRMPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, two inverting inputs, and open-collector outputs. It operates from 1.4V to 18V supply, draws only 6.5µA typical quiescent current at 5V, and features 6.5mV typical hysteresis - enabling robust low-voltage battery monitoring and threshold detection in space-constrained SOT-23 packages.
For engineers reviewing the LT6700CS6-2#TRMPBF datasheet, LT6700CS6-2#TRMPBF pinout, LT6700CS6-2#TRMPBF application, or LT6700CS6-2#TRMPBF equivalent, this part supports precise dual-threshold detection with ±1.25% max total threshold error at 25°C, rail-to-rail input operation down to ground, and output voltage tolerance up to 18V independent of supply - critical for industrial sensor interfaces and automotive power-rail supervision.
Technical Context
The LT6700CS6-2#TRMPBF implements two independent comparators, each with one externally accessible inverting input (–INA, –INB) and the other internally tied to a precision 400mV reference. Its Over-The-Top® input architecture allows inputs to operate from GND to 18V regardless of VS, supporting direct connection to high-side signals without level-shifting.
Both open-collector outputs (OUTA, OUTB) sink ≥5mA over temperature and tolerate up to 18V off-state voltage, enabling flexible level translation and direct driving of relays or logic families referenced to different supplies. Internal hysteresis eliminates external feedback components and ensures stable switching under noisy conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.4V to 18V - enables operation directly from single-cell Li-ion or multi-cell alkaline batteries. |
| Quiescent Current | 6.5µA typ at 5V - extends battery life in always-on monitoring systems beyond 10 years. |
| Reference Voltage | 400mV ±1.25% max - provides stable, temperature-compensated threshold without external resistors. |
| Hysteresis | 6.5mV typ - suppresses chatter on slow or noisy input edges without external components. |
| Input Bias Current | ±10nA max - minimizes voltage drop across high-impedance sensor dividers (e.g., thermistors). |
| Output Sink Current | >5mA guaranteed - drives LEDs, small relays, or 74HC logic directly without buffer transistors. |
| Operating Temp | 0°C to 70°C - validated for commercial-grade instrumentation and portable equipment. |
Pinout & Package
LT6700CS6-2#TRMPBF uses a 6-lead plastic TSOT-23 package (S6), 2.9mm × 1.6mm × 1.0mm profile, with exposed pad not connected internally. Pin 7 is absent; thermal pad is optional for PCB connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA | Open-collector output A | Sinks current when comparator A triggers; supports pull-up to up to 18V independent of VS. |
| GND | Ground reference | Return path for internal 400mV reference and comparator core; must be low-impedance. |
| –INA | Inverting input A | Voltage applied here is compared against internal 400mV reference; accepts –0.3V to 18V. |
| OUTB | Open-collector output B | Independent sinking output for comparator B; electrically isolated from OUTA. |
| VS | Supply voltage | Powers comparator core and reference; no bypass capacitor required due to low IS variation. |
| –INB | Inverting input B | Second inverting input referenced to same 400mV; enables dual independent low-side threshold detection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual inverting-input topology | Enables simultaneous monitoring of two separate low-side signals (e.g., VBAT and VREF) against same 400mV threshold. |
| Over-The-Top® input range | Allows –0.3V to 18V input swing relative to GND - supports direct connection to battery anodes or sensor bridges without level shifters. |
| Internal hysteresis | Eliminates need for external positive feedback resistors, reducing BOM count and layout sensitivity in noisy environments. |
| Open-collector outputs | Permit wired-OR logic, mixed-voltage interfacing (e.g., 3.3V logic controlling 12V relay), and fail-safe high-impedance state. |
| Low input bias current | Preserves accuracy in high-resistance divider networks (e.g., 1MΩ thermistor circuits) with <1mV error contribution. |
Applications
| Battery Voltage Monitor | Industrial Threshold Detector |
|---|---|
Use Scenario: Monitoring alkaline AA cell voltage decay in handheld medical devices to trigger low-battery warning before shutdown. IC Role / Device Role / Timing Role: Dual comparator detects both under-voltage (e.g., <1.6V) and over-voltage (e.g., >2.0V) thresholds using shared 400mV reference and resistor dividers. Use Value: 6.5µA quiescent current extends device runtime by >30% versus discrete comparator solutions; ±1.25% threshold accuracy ensures consistent alert timing across temperature. | Use Scenario: Supervising 24V DC power rails in PLC I/O modules to detect brownout and overvoltage faults. IC Role / Device Role / Timing Role: LT6700CS6-2#TRMPBF compares scaled rail voltage against 400mV reference via precision resistors; outputs drive optocouplers for isolation. Use Value: Input range to 18V and output tolerance to 18V allow direct interface with 24V systems using simple resistive scaling; hysteresis prevents false trips during transient dips. |
| Automotive Power-Rail Supervisor | Handheld Instrument Low-Power Alert |
Use Scenario: Detecting battery disconnect or alternator failure in 12V automotive subsystems (e.g., infotainment backup power). IC Role / Device Role / Timing Role: One comparator monitors main battery (via 30:1 divider), second monitors backup supercap voltage - both referenced to internal 400mV. Use Value: 0°C to 70°C commercial grade meets cabin ambient requirements; 1.4V minimum supply ensures operation during cranking events down to 6V battery sag. | Use Scenario: Providing low-power "battery OK" and "critical low" alerts in portable multimeters powered by coin cells. IC Role / Device Role / Timing Role: Dual inverting inputs accept divided battery voltage; outputs drive separate LEDs or microcontroller GPIO pins with minimal external components. Use Value: SOT-23 footprint saves board area in compact enclosures; 6.5µA IS enables >5-year shelf life with CR2032 battery; internal reference removes calibration drift concerns. |
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 |
|---|---|---|---|
| LT6700IS6-2#TRMPBF | Same functionality but rated for –40°C to 85°C industrial temperature range; higher max supply current (14µA vs 6.5µA). | Required for extended-temperature industrial control cabinets or outdoor metering hardware. | Select when operating outside 0°C–70°C ambient or requiring full-spec validation across –40°C to 85°C. |
| TLV3702IDR | Single-supply dual comparator with 1.2V internal reference; no integrated reference; higher quiescent current (1.8µA vs 6.5µA); no built-in hysteresis. | Suitable for higher-threshold detection (>1.2V) where external reference or hysteresis is acceptable. | Choose only if 400mV reference is unnecessary and board space allows external hysteresis resistors and reference circuitry. |
Compared with LT6700IS6-2#TRMPBF, LT6700CS6-2#TRMPBF offers lower power and cost for commercial-temperature applications, while TLV3702IDR requires additional components to match basic threshold stability and hysteresis - increasing design complexity and BOM count.
Availability
LT6700CS6-2#TRMPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, industrial threshold detection, and handheld instrument design requiring stable component supply and long-term production continuity.
Supply support for LT6700CS6-2#TRMPBF 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 delivers micropower, precision dual comparators with integrated references for low-voltage system supervision - targeting applications where size, power, and accuracy constrain discrete solutions.
FAQ
What is the function of the LT6700CS6-2#TRMPBF in a battery monitoring circuit?
The LT6700CS6-2#TRMPBF serves as a dual-threshold detector using its internal 400mV reference and two inverting inputs. In battery monitoring, it compares scaled battery voltage against upper and lower trip points - for example, triggering OUTA at <1.6V (low warning) and OUTB at <1.2V (shutdown) - with built-in hysteresis preventing oscillation near thresholds.
Does the LT6700CS6-2#TRMPBF require external hysteresis components?
No, the LT6700CS6-2#TRMPBF includes internal hysteresis of 6.5mV typical, eliminating the need for external positive feedback resistors. This simplifies design, reduces component count, and ensures consistent hysteresis performance across temperature and supply voltage - unlike discrete comparator implementations where hysteresis depends on external resistor tolerances.
Can the LT6700CS6-2#TRMPBF inputs operate below ground?
Yes, the LT6700CS6-2#TRMPBF inputs tolerate –0.3V below GND per Absolute Maximum Ratings, enabled by ESD diode protection. However, input bias current increases significantly below ground (up to ±10nA), and operation below –0.3V risks permanent damage. For reliable sub-ground sensing, external clamping is recommended.
What is the maximum output voltage the LT6700CS6-2#TRMPBF can tolerate on OUTA or OUTB?
The LT6700CS6-2#TRMPBF outputs tolerate up to 18V above GND in the off-state, independent of the VS supply voltage. This allows direct interfacing with higher-voltage loads (e.g., 12V relays or 5V logic) using simple pull-up resistors - a key advantage over standard comparators limited to VS-referenced outputs.
How does the LT6700CS6-2#TRMPBF achieve rail-to-rail input operation despite a 1.4V minimum supply?
The LT6700CS6-2#TRMPBF uses Analog Devices' Over-The-Top® input architecture, which employs high-voltage lateral PNP transistors to extend common-mode range from GND to 18V regardless of VS. This enables direct sensing of battery anodes or sensor bridges without level-shifting circuitry - even when VS is as low as 1.4V.
LT6700CS6-2#TRMPBF 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):
- 16µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 6.5mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-6
LT6700CS6-2#TRMPBF FAQ
1.How can I place an order for LT6700CS6-2#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700CS6-2#TRMPBF 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 LT6700CS6-2#TRMPBF reliable?
The price and inventory of LT6700CS6-2#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700CS6-2#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6700CS6-2#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700CS6-2#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700CS6-2#TRMPBF?
LT6700CS6-2#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700CS6-2#TRMPBF 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 LT6700CS6-2#TRMPBF?
For technical support, including LT6700CS6-2#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700CS6-2#TRMPBF requirements.
6.How does Aetrix verify that LT6700CS6-2#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6700CS6-2#TRMPBF 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 LT6700CS6-2#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6700CS6-2#TRMPBF?
All LT6700CS6-2#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700CS6-2#TRMPBF, 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 LT6700CS6-2#TRMPBF part is unused and in its original packaging.
Return procedure for LT6700CS6-2#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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