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Analog Devices Inc. LT6700HDCB-2#TRPBF
- Part No.:
- LT6700HDCB-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LT6700HDCB-2#TRPBF.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,067
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Product details
Overview
LT6700HDCB-2#TRPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, configured with two inverting inputs for threshold detection and window comparator topologies. It operates from 1.4V to 18V supply, draws only 6.5µA typical quiescent current at 5V, features ±10nA max input bias current, and delivers open-collector outputs sinking >5mA - ideal for battery-powered system monitoring and automotive voltage supervision.
For engineers reviewing the LT6700HDCB-2#TRPBF datasheet, LT6700HDCB-2#TRPBF pinout, LT6700HDCB-2#TRPBF application, or LT6700HDCB-2#TRPBF equivalent, this part supports high-side input sensing up to 36V (HV version), offers internal hysteresis (6.5mV typ), maintains ±1.25% max total threshold error at 25°C, and is qualified for –40°C to 125°C operation in automotive-grade DFN packaging.
Technical Context
The LT6700HDCB-2#TRPBF integrates two independent comparators sharing a precision 400mV internal reference, with both external inputs configured as inverting terminals - enabling direct use in low-side sensing, overvoltage/undervoltage detection, and cascaded threshold monitoring. Each comparator includes built-in hysteresis (6.5mV typ) to prevent oscillation near trip points without external components.
Its Over-The-Top® input architecture allows input voltages up to 36V (independent of VS), while open-collector outputs support level translation up to 18V (or 36V for HV variants) and sink ≥5mA. The device is specified across –40°C to 125°C and meets AEC-Q100 Grade H requirements for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.4V to 18V - enables operation from single-cell Li-ion or alkaline up to industrial 12V rails. |
| Quiescent Current | 6.5µA typ at 5V - extends battery life in always-on monitoring circuits. |
| Reference Accuracy | ±1.25% max total threshold error at 25°C - ensures precise voltage trip points without calibration. |
| Hysteresis | 6.5mV typ - eliminates noise-induced chatter without external feedback resistors. |
| Input Bias Current | ±10nA max - minimizes loading on high-impedance sensor or divider networks. |
| Output Sink Current | >5mA guaranteed - directly drives LEDs, small relays, or logic inputs without buffering. |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
LT6700HDCB-2#TRPBF uses a 6-lead (2mm × 3mm) plastic DFN package with exposed pad internally connected to GND. Pin 7 is soldered exposed thermal pad (PCB connection optional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA | Open-collector output of Comparator A | Sinks ≥5mA; off-state voltage up to 36V (HV mode); requires external pull-up. |
| GND | Ground reference and reference low side | Common return for supply, reference, and exposed thermal pad. |
| –INA | Inverting input of Comparator A | Accepts –0.3V to 36V; other input tied internally to 400mV reference. |
| OUTB | Open-collector output of Comparator B | Independent output with same drive capability and voltage range as OUTA. |
| VS | Core supply voltage | Powers comparator core and reference; 1.4V–18V range decoupled from input/output voltage domains. |
| –INB | Inverting input of Comparator B | Accepts –0.3V to 36V; second input internally referenced to 400mV. |
Key Features
| Feature | Design Value |
|---|---|
| Dual inverting-input comparators | Enables simultaneous high- and low-threshold detection using shared 400mV reference - simplifies window comparator design. |
| Over-The-Top® input architecture | Supports input voltages up to 36V regardless of VS - allows direct sensing of battery or bus voltage without level-shifting. |
| Internal 400mV reference | Eliminates external reference IC or resistor divider; ±1.25% max error reduces BOM count and layout area. |
| 6.5µA quiescent current | Enables multi-year operation on coin cells in IoT sensors or telematics modules with periodic wake-up. |
| AEC-Q100 Grade H qualification | Validated for automotive under-hood applications including battery management and power rail supervision. |
Applications
| Battery Voltage Monitor | Automotive Power Rail Supervisor |
|---|---|
|
Use Scenario: Monitoring 12V lead-acid or 48V mild-hybrid battery voltage for undervoltage lockout and overvoltage protection. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against fixed thresholds derived from internal 400mV reference via resistor dividers. Use Value: Eliminates need for external reference or trimming; 6.5µA IQ enables always-on monitoring without significant standby drain. |
Use Scenario: Supervising MCU supply rails (e.g., 5V, 3.3V) and CAN transceiver VCC in automotive ECUs. IC Role / Device Role / Timing Role: LT6700HDCB-2#TRPBF detects out-of-spec conditions and asserts fault signals to reset controller or disable power stages. Use Value: –40°C to 125°C operation and AEC-Q100 qualification ensure reliability in engine bay environments. |
| Industrial Threshold Detector | Handheld Instrument Low-Power Alert |
|
Use Scenario: Detecting analog sensor output crossing preset limits (e.g., temperature, pressure) in PLC I/O modules. IC Role / Device Role / Timing Role: Inverting inputs accept conditioned sensor signals; open-collector outputs interface directly with optocouplers or microcontroller GPIOs. Use Value: Input bias current ≤±10nA prevents loading of high-Z sensor circuits; hysteresis prevents false triggering near thresholds. |
Use Scenario: Providing low-battery warning in portable test equipment powered by AA/AAA cells. IC Role / Device Role / Timing Role: Compares battery voltage against 1.6V and 2.0V thresholds (using 400mV reference + resistor network) to drive LED indicators. Use Value: Micropower operation (6.5µA) extends usable runtime between battery replacements; DFN package saves PCB space. |
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 |
|---|---|---|---|
| LT6700IDCB-2#TRPBF | Same pinout and function, but rated for –40°C to 85°C industrial temp range; lower max operating temperature. | Suitable for non-automotive industrial controls where extended temperature is not required. | Select when cost sensitivity outweighs need for 125°C operation; identical footprint and schematic. |
| TLV3702IDR | Single-supply dual comparator with 1.24V reference; no internal hysteresis; 85µA IQ; SOIC-8 package. | Lacks integrated hysteresis and micropower efficiency; requires external hysteresis resistors and reference bypassing. | Choose only if higher speed (<1µs propagation delay) is critical and board space allows SOIC-8; not drop-in compatible. |
Compared with LT6700IDCB-2#TRPBF, the LT6700HDCB-2#TRPBF adds 125°C operation and AEC-Q100 qualification for automotive use; versus TLV3702IDR, it provides integrated reference, hysteresis, and 13× lower quiescent current in a smaller DFN package - enabling robust, space-constrained, battery-sensitive designs.
Availability
LT6700HDCB-2#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, industrial sensor interfaces, and handheld instrument power monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6700HDCB-2#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, Inc. 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 voltage monitoring and threshold detection in space- and energy-constrained systems, integrating precision reference and hysteresis to eliminate external components.
FAQ
What is the maximum input voltage rating for LT6700HDCB-2#TRPBF?
The LT6700HDCB-2#TRPBF supports input voltages from –0.3V to 36V relative to GND on both –INA and –INB pins, independent of the VS supply voltage. This Over-The-Top® capability allows direct sensing of battery or bus voltages up to 36V without external level-shifting circuitry, making LT6700HDCB-2#TRPBF especially suited for automotive and industrial monitoring applications.
Does LT6700HDCB-2#TRPBF require external hysteresis components?
No, LT6700HDCB-2#TRPBF includes internal hysteresis of 6.5mV typical, eliminating the need for external positive feedback resistors. This built-in hysteresis stabilizes output transitions near threshold voltages and prevents noise-induced oscillation - a key advantage of LT6700HDCB-2#TRPBF in low-amplitude or noisy signal environments.
What is the total threshold error specification for LT6700HDCB-2#TRPBF?
The LT6700HDCB-2#TRPBF has a total threshold error of ±1.25% maximum at 25°C, combining reference accuracy, comparator offset, and temperature drift contributions. This tight tolerance ensures reliable trip-point consistency across production units and simplifies design margining for LT6700HDCB-2#TRPBF in precision monitoring applications.
Can LT6700HDCB-2#TRPBF drive a relay directly?
Yes, LT6700HDCB-2#TRPBF open-collector outputs are specified to sink >5mA continuously over temperature, sufficient to drive small signal relays (e.g., 5V/10mA coil) when used with an appropriate pull-up resistor and supply. For higher-current loads, a discrete transistor buffer is recommended - but LT6700HDCB-2#TRPBF's output drive capability reduces component count in many relay-control designs.
Is LT6700HDCB-2#TRPBF pin-compatible with other LT6700 variants?
Yes, all LT6700 DFN-packaged variants (e.g., LT6700HDCB-1#TRPBF, LT6700HDCB-3#TRPBF) share identical 6-pin DFN pinout and footprint. Only the input polarity differs: LT6700HDCB-2#TRPBF has two inverting inputs, whereas -1 uses one inverting/one noninverting, and -3 uses two noninverting inputs - allowing direct PCB reuse with minor schematic adjustments for LT6700HDCB-2#TRPBF.
LT6700HDCB-2#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 6-WFDFN Exposed Pad
- 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
- :
- 6-DFN (2x3)
LT6700HDCB-2#TRPBF FAQ
1.How can I place an order for LT6700HDCB-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700HDCB-2#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 LT6700HDCB-2#TRPBF reliable?
The price and inventory of LT6700HDCB-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700HDCB-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6700HDCB-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700HDCB-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700HDCB-2#TRPBF?
LT6700HDCB-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700HDCB-2#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 LT6700HDCB-2#TRPBF?
For technical support, including LT6700HDCB-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700HDCB-2#TRPBF requirements.
6.How does Aetrix verify that LT6700HDCB-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6700HDCB-2#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 LT6700HDCB-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6700HDCB-2#TRPBF?
All LT6700HDCB-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700HDCB-2#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 LT6700HDCB-2#TRPBF part is unused and in its original packaging.
Return procedure for LT6700HDCB-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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