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Analog Devices Inc. LT6700IS6-3#TRPBF
- Part No.:
- LT6700IS6-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6700IS6-3#TRPBF.pdf
- Description:
- IC COMPARATR 2 W/VOLT REF TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,798
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Product details
Overview
LT6700IS6-3#TRPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, designed for low-voltage system monitoring in industrial and automotive applications. It features two noninverting inputs, open-collector outputs rated to 18V, 6.5µA typical supply current at 5V, ±10nA max input bias current, and internal 6.5mV typical hysteresis - enabling robust threshold detection in battery-powered sensors and power-rail monitors.
For engineers reviewing the LT6700IS6-3#TRPBF datasheet, LT6700IS6-3#TRPBF pinout, LT6700IS6-3#TRPBF application, or LT6700IS6-3#TRPBF equivalent, this page delivers verified specifications, SOT-23-6 pin mapping, temperature-stable threshold behavior (±1.25% max error at 25°C), and direct alternatives for window comparator or dual-threshold designs requiring –40°C to 85°C operation.
Technical Context
The LT6700IS6-3#TRPBF implements two independent comparators, each with one externally accessible noninverting input (+INA, +INB) and the other internally tied to the precision 400mV reference. Its Over-The-Top® input architecture allows input voltages up to 18V regardless of supply voltage (1.4V–18V), supporting high-side sensing without level-shifting.
Both open-collector outputs (OUTA, OUTB) sink ≥5mA and tolerate up to 18V off-state voltage, enabling direct interface with logic families, relays, or higher-voltage loads. Internal hysteresis eliminates external feedback components and ensures stable switching across temperature (–40°C to 85°C industrial grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - supports single-cell Li-ion, alkaline, and 12V industrial rails without external regulators. |
| Reference Voltage | 400mV ±1.25% max at 25°C - enables precise low-threshold detection for battery end-of-life or brownout monitoring. |
| Quiescent Current | 6.5µA typ at 5V - extends battery life in always-on sensor nodes and portable instrumentation. |
| Input Bias Current | ±10nA max - minimizes voltage error in high-impedance divider networks (e.g., >1MΩ sensing). |
| Hysteresis | 6.5mV typ - prevents chatter near trip points without external resistors, simplifying PCB layout. |
| Output Sink Current | ≥5mA guaranteed over temperature - directly drives LEDs, small relays, or MOSFET gates without buffer stages. |
| Operating Temp Range | –40°C to +85°C - qualified for industrial control cabinets and automotive under-hood auxiliary modules. |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUTA | Open-collector output of Comparator A | Sinks ≥5mA; off-state voltage up to 18V - enables level-translated logic or direct relay drive. |
| 2: GND | Ground reference and reference low terminal | Common return for internal 400mV reference and comparator core - must be low-impedance. |
| 3: +INA | Noninverting input of Comparator A | Voltage applied here is compared against internal 400mV reference - used for rising-edge threshold detection. |
| 4: –INB | Inverting input of Comparator B | Not applicable to LT6700IS6-3#TRPBF - this variant uses +INB (pin 4 is +INB per datasheet PF03); correction: pin 4 = +INB. |
| 5: VS | Comparator core supply | Powers internal circuitry and reference; decoupling capacitor required within 1cm of pin. |
| 6: OUTB | Open-collector output of Comparator B | Independent of OUTA; supports dual-threshold or redundant fault signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual noninverting inputs (+INA, +INB) | Enables simultaneous high-side monitoring of two independent rails (e.g., VDD and VBAT) against same 400mV reference. |
| Over-The-Top® input range | Accepts inputs from –0.3V to 18V regardless of VS - eliminates need for rail-to-rail op-amps or external clamping diodes. |
| Internal 400mV reference | Eliminates external reference IC or resistor divider; ±1.25% max total threshold error reduces calibration overhead. |
| Guaranteed 5mA output sink | Drives standard logic inputs, optocouplers, or small-signal MOSFETs without external pull-ups or buffers. |
| Industrial temperature grade | Specified and tested from –40°C to +85°C - suitable for factory automation, motor drives, and telecom power supplies. |
Applications
| Battery End-of-Life Detection | Power Supply Brownout Monitoring |
|---|---|
Use Scenario: Monitoring alkaline AA cell voltage decay in handheld medical devices to trigger low-battery alerts before functional failure. IC Role / Device Role / Timing Role: LT6700IS6-3#TRPBF compares battery voltage against 400mV reference using +INA; hysteresis prevents false triggers during transient load dips. Use Value: Enables accurate 1.6V shutdown threshold (via 4:1 resistor divider) with <10µA total monitor current, extending usable battery life by >15%. | Use Scenario: Detecting undervoltage on a 5V microcontroller supply rail in an industrial PLC module to initiate safe shutdown before data corruption. IC Role / Device Role / Timing Role: LT6700IS6-3#TRPBF uses +INB to monitor 5V rail via 12.5:1 divider, asserting OUTB when voltage drops below 4.95V (396mV at input). Use Value: Provides deterministic 29µs max propagation delay and 6.5mV hysteresis - eliminating software polling and ensuring sub-100ms response to brownout events. |
| Redundant Overvoltage Protection | Window Comparator for Sensor Signal Validation |
Use Scenario: Dual-threshold monitoring of a 12V automotive accessory rail to detect both overvoltage (>15.5V) and undervoltage (<10.5V) faults. IC Role / Device Role / Timing Role: LT6700IS6-3#TRPBF configures +INA for 10.5V detection (2.625V input) and +INB for 15.5V detection (3.875V input), both referenced to 400mV. Use Value: Achieves full window detection with single IC and no external reference - reducing BOM count and PCB area vs discrete solutions. | Use Scenario: Validating analog output of a pressure sensor (0.5–4.5V range) in HVAC control systems to flag out-of-spec signals before actuator commands. IC Role / Device Role / Timing Role: LT6700IS6-3#TRPBF sets lower bound with +INA (0.5V → 200mV input) and upper bound with +INB (4.5V → 1.8V input), both compared to 400mV reference. Use Value: Delivers ±1.25% threshold accuracy over temperature - ensuring sensor validation remains reliable across –40°C to +85°C ambient conditions. |
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 |
|---|---|---|---|
| LT6700IS6-1#TRPBF | One inverting (–INA) and one noninverting (+INB) input - supports classic window comparator topology with shared reference. | Requires inverted signal path for one threshold; less intuitive for dual high-side monitoring than LT6700IS6-3#TRPBF. | Select when implementing traditional window detection where one input must be inverted relative to reference. |
| MAX9063ASA+T | Single 400mV reference, but only one comparator; requires external resistor network for second threshold; 12µA supply current. | Lacks integrated dual-comparator architecture - increases component count and layout complexity for dual-threshold use cases. | Choose only if single-threshold detection suffices or space constraints preclude dual-comparator ICs. |
Compared with LT6700IS6-1#TRPBF, the LT6700IS6-3#TRPBF simplifies dual high-side sensing by eliminating inversion logic; versus MAX9063ASA+T, it delivers true dual-comparator integration, 45% lower quiescent current, and guaranteed hysteresis - making it optimal for compact, low-power industrial monitors.
Availability
LT6700IS6-3#TRPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, industrial control systems, and automotive monitor and controls requiring stable component supply across extended temperature ranges.
Supply support for LT6700IS6-3#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, precision threshold detection in resource-constrained environments - integrating reference, hysteresis, and Over-The-Top® inputs to replace multi-component discrete comparator solutions.
FAQ
What is the reference voltage accuracy of the LT6700IS6-3#TRPBF over temperature?
The LT6700IS6-3#TRPBF features a 400mV internal reference with total threshold error of ±1.25% maximum at 25°C. Over the full –40°C to +85°C operating range, the combined effect of reference drift and comparator offset maintains tight threshold stability, enabling reliable battery and power-rail monitoring without external calibration.
Can the LT6700IS6-3#TRPBF operate from a 1.4V supply while driving a 5V logic load?
Yes. The LT6700IS6-3#TRPBF operates down to 1.4V supply and its open-collector outputs (OUTA/OUTB) tolerate up to 18V off-state voltage - allowing direct connection to 5V pull-up resistors or logic inputs. This level translation capability is intrinsic to the design and requires no additional components.
How does the hysteresis in the LT6700IS6-3#TRPBF improve noise immunity?
The LT6700IS6-3#TRPBF integrates 6.5mV typical hysteresis, creating a built-in voltage gap between rising and falling thresholds. This prevents rapid output toggling when input signals hover near the trip point due to noise or slow edges - eliminating the need for external positive feedback resistors and simplifying design for noisy industrial environments.
Is the LT6700IS6-3#TRPBF pin-compatible with other LT6700 variants in the SOT-23 package?
Yes - all LT6700xS6 variants (including LT6700IS6-1#TRPBF, LT6700IS6-2#TRPBF, and LT6700IS6-3#TRPBF) share identical 6-lead TSOT-23 pinout and footprint. Input polarity differs per variant (e.g., LT6700IS6-3#TRPBF has +INA and +INB), but mechanical and electrical interconnection remains fully compatible.
What is the maximum sink current capability of the LT6700IS6-3#TRPBF outputs over temperature?
The LT6700IS6-3#TRPBF guarantees ≥5mA output sink current for both OUTA and OUTB across the full –40°C to +85°C operating range, with VOL ≤200mV at 5mA and 5V supply. This enables direct drive of LEDs, small relays, or logic inputs without external buffering stages.
LT6700IS6-3#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 @ 1.8V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 17µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 11.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-6
LT6700IS6-3#TRPBF FAQ
1.How can I place an order for LT6700IS6-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700IS6-3#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 LT6700IS6-3#TRPBF reliable?
The price and inventory of LT6700IS6-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700IS6-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6700IS6-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700IS6-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700IS6-3#TRPBF?
LT6700IS6-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700IS6-3#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 LT6700IS6-3#TRPBF?
For technical support, including LT6700IS6-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700IS6-3#TRPBF requirements.
6.How does Aetrix verify that LT6700IS6-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6700IS6-3#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 LT6700IS6-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6700IS6-3#TRPBF?
All LT6700IS6-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700IS6-3#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 LT6700IS6-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6700IS6-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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