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Analog Devices Inc. LT6700IDCB-1#TRMPBF
- Part No.:
- LT6700IDCB-1#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LT6700IDCB-1#TRMPBF.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,081
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Product details
Overview
LT6700IDCB-1#TRMPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, designed for low-voltage system monitoring in industrial and automotive applications. It operates from 1.4V to 18V supply, draws only 6.5µA typical quiescent current, features ±10nA max input bias current, 6.5mV typical hysteresis, and open-collector outputs rated to sink >5mA.
For engineers reviewing the LT6700IDCB-1#TRMPBF datasheet, LT6700IDCB-1#TRMPBF pinout, LT6700IDCB-1#TRMPBF application, or LT6700IDCB-1#TRMPBF equivalent, this part supports window-comparator configurations via its dedicated inverting (INB) and noninverting (INA) inputs, enables level-translated output interfacing up to 18V, and delivers stable threshold detection across –40°C to 85°C.
Technical Context
The LT6700IDCB-1#TRMPBF integrates two independent comparators sharing a precision 400mV internal reference. Each comparator has one externally accessible input (INA for noninverting, INB for inverting), while the second input is internally tied to the reference - enabling direct threshold comparison without external resistors. Hysteresis is built-in at 6.5mV typ to prevent oscillation near trip points.
Its open-collector outputs (OUTA/OUTB) operate independently of supply voltage, supporting pull-up to voltages up to 18V regardless of VS. Input common-mode range extends from GND–0.3V to 18V, enabling "Over-The-Top®" operation where inputs exceed VS - critical for battery monitoring and rail-to-rail sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - supports single-cell LiFePO₄, alkaline, and 12V automotive 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 voltage detection without calibration. |
| Hysteresis | 6.5mV typ - eliminates noise-induced chatter on slow-rising/falling signals like battery discharge curves. |
| Input Bias Current | ±10nA max - minimizes loading error on high-impedance dividers (e.g., 1MΩ networks). |
| Output Sink Current | >5mA guaranteed over temperature - directly drives LEDs, small relays, or logic-level MOSFET gates. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control and under-hood automotive environments. |
Pinout & Package
LT6700IDCB-1#TRMPBF uses a 6-lead (2mm × 3mm) plastic DFN package with exposed pad (internally connected to GND). Pin numbering follows standard top-view orientation with pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Open-collector output of Comparator A | Sinks current when INA > VREF; supports pull-up to 18V independent of VS - ideal for interfacing with 3.3V/5V/12V logic or discrete loads. |
| 2 (GND) | Ground reference and reference low terminal | Common return for internal 400mV reference and all circuitry; exposed pad must be soldered to PCB ground plane for thermal and electrical performance. |
| 3 (+INA) | Noninverting input of Comparator A | Accepts signals from GND–0.3V to 18V; used with internal 400mV reference to detect rising thresholds (e.g., battery OK). |
| 4 (–INB) | Inverting input of Comparator B | Accepts signals from GND–0.3V to 18V; used with internal 400mV reference to detect falling thresholds (e.g., battery low warning). |
| 5 (VS) | Core supply voltage | Powers comparator core and reference; decoupling capacitor required between VS and GND for stability. |
| 6 (OUTB) | Open-collector output of Comparator B | Sinks current when VREF > INB; complements OUTA to form window-comparator behavior with hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 400mV reference | Eliminates external reference IC or resistor divider, reducing BOM count and layout area in space-constrained designs. |
| Internal hysteresis (6.5mV) | Removes need for external positive feedback components, simplifying design and improving consistency across production units. |
| Over-The-Top® input capability | Allows direct connection of high-side battery or rail monitors without level-shifting - e.g., monitor 12V battery with 3.3V-supplied microcontroller. |
| Wide supply range (1.4V–18V) | Enables single-part support across multiple power domains: coin-cell sensors, USB-powered instruments, and 12V industrial controllers. |
| Open-collector outputs | Permits flexible interface to diverse logic families and higher-voltage loads via external pull-up, avoiding level-shifter ICs. |
Applications
| Battery Voltage Monitor | Window Comparator |
|---|---|
|
Use Scenario: Monitoring alkaline AA cell voltage during discharge to trigger low-battery alert before cutoff. IC Role / Device Role / Timing Role: Dual comparator compares battery voltage against upper (1.6V) and lower (1.2V) thresholds using internal 400mV reference and resistor scaling. Use Value: Enables precise, low-power state-of-charge indication with no external reference or hysteresis components - reducing solution size by 30% vs discrete implementation. |
Use Scenario: Detecting valid input voltage range (e.g., 4.75V–5.25V) in a 5V power rail for FPGA configuration lock. IC Role / Device Role / Timing Role: LT6700IDCB-1#TRMPBF configures as window comparator: INA monitors upper limit, INB monitors lower limit relative to 400mV reference. Use Value: Guarantees rail integrity before system boot; hysteresis prevents false toggling during transient dips - improving startup reliability in noisy industrial environments. |
| Industrial Sensor Interface | Automotive Body Control |
|
Use Scenario: Converting 0–10V analog sensor output (e.g., pressure transducer) into digital status flags for PLC input. IC Role / Device Role / Timing Role: Uses Over-The-Top® inputs to accept 0–10V signal directly; OUTA/OUTB drive optocouplers or microcontroller GPIOs. Use Value: Eliminates signal conditioning op-amps and level shifters - cuts interface BOM cost by $0.35/unit and reduces board area by 45 mm². |
Use Scenario: Monitoring 12V battery health in automotive body control module (BCM) to enable/disable accessory loads. IC Role / Device Role / Timing Role: Compares battery voltage against 11.8V (low) and 14.2V (overvoltage) thresholds derived from 400mV reference and precision resistors. Use Value: Supports AEC-Q100-compliant monitoring with <±1.25% threshold error - meets ISO 16750-2 pulse test requirements for voltage supervision. |
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#TRMPBF | SOT-23-6 package (vs DFN); identical electrical specs and pinout mapping; 230°C/W θJA vs 64°C/W for DFN. | Preferred for prototyping or low-volume hand-soldered boards due to larger pitch and visibility; less suitable for high-density automotive PCBs. | Select when manual assembly or legacy footprint compatibility is required; verify thermal margin in enclosed enclosures. |
| TLV3701IDBVR | Single comparator with 1.24V reference; no internal hysteresis; 600nA IQ; 36V supply; different pinout and no dual-channel integration. | Requires two devices plus external hysteresis/resistors to replicate LT6700IDCB-1#TRMPBF functionality - increases component count and layout complexity. | Consider only if ultra-low IQ (<1µA) is mandatory and dual-channel integration is not needed; expect +25% board area and +40% BOM cost. |
Compared with LT6700IS6-1#TRMPBF, the LT6700IDCB-1#TRMPBF offers superior thermal performance (64°C/W vs 230°C/W) and smaller footprint for high-reliability automotive modules; compared with TLV3701IDBVR, it delivers integrated dual-channel operation, built-in hysteresis, and lower system-level design effort despite slightly higher IQ.
Availability
LT6700IDCB-1#TRMPBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive battery monitors, and handheld instrument power supervisors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6700IDCB-1#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 was designed specifically for low-power, high-accuracy voltage monitoring in resource-constrained systems - emphasizing micropower operation, integrated references, and robust input/output staging for real-world harsh-environment deployment.
FAQ
What is the function of the exposed pad on the LT6700IDCB-1#TRMPBF DFN package?
The exposed pad on the LT6700IDCB-1#TRMPBF is internally connected to GND and must be soldered to a PCB thermal pad tied to the system ground plane. This improves thermal dissipation (reducing θJA to 64°C/W), enhances electrical stability by lowering ground impedance, and provides EMI shielding for the sensitive comparator inputs and reference circuitry.
Can the LT6700IDCB-1#TRMPBF operate with a 1.4V supply while maintaining full specification?
Yes, the LT6700IDCB-1#TRMPBF is fully specified down to 1.4V supply voltage. At 1.4V, it maintains 6.5µA typical supply current, ±10nA input bias current, 6.5mV hysteresis, and functional open-collector outputs capable of sinking >5mA - enabling use in single-cell lithium or NiMH battery systems without boost regulation.
How does the LT6700IDCB-1#TRMPBF achieve "Over-The-Top®" input operation?
The LT6700IDCB-1#TRMPBF achieves Over-The-Top® operation through specialized input stage design that allows either input (INA or INB) to accept voltages up to 18V above GND - even when VS is as low as 1.4V. This is implemented using high-voltage lateral PNP transistors and ESD protection diodes rated to GND–0.3V, enabling direct high-side sensing without level shifters.
What is the maximum output voltage the LT6700IDCB-1#TRMPBF can tolerate on OUTA or OUTB pins?
The LT6700IDCB-1#TRMPBF OUTA and OUTB pins tolerate up to 18V above GND in the off-state, independent of the VS supply voltage. This allows pull-up to 3.3V, 5V, 12V, or 18V logic rails or discrete loads - but note that the LT6700HV variant (not this part) supports 36V tolerance; the IDCB-1 version is rated for 18V absolute maximum.
Is the LT6700IDCB-1#TRMPBF pin-compatible with other LT6700 variants like LT6700IDCB-2#TRMPBF?
No, LT6700IDCB-1#TRMPBF is not pin-compatible with LT6700IDCB-2#TRMPBF or LT6700IDCB-3#TRMPBF. While all share the same DFN-6 package and pin positions, the input polarities differ: IDCB-1 has +INA/–INB, IDCB-2 has –INA/–INB, and IDCB-3 has +INA/+INB. Swapping them without circuit revision will invert comparator behavior and cause incorrect logic states.
LT6700IDCB-1#TRMPBF 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):
- 17µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 11.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 6-DFN (2x3)
LT6700IDCB-1#TRMPBF FAQ
1.How can I place an order for LT6700IDCB-1#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700IDCB-1#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 LT6700IDCB-1#TRMPBF reliable?
The price and inventory of LT6700IDCB-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700IDCB-1#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6700IDCB-1#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700IDCB-1#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700IDCB-1#TRMPBF?
LT6700IDCB-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700IDCB-1#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 LT6700IDCB-1#TRMPBF?
For technical support, including LT6700IDCB-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700IDCB-1#TRMPBF requirements.
6.How does Aetrix verify that LT6700IDCB-1#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6700IDCB-1#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 LT6700IDCB-1#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6700IDCB-1#TRMPBF?
All LT6700IDCB-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700IDCB-1#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 LT6700IDCB-1#TRMPBF part is unused and in its original packaging.
Return procedure for LT6700IDCB-1#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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