My Inquiry
My Account
Analog Devices Inc. LT6700IDCB-3#TRMPBF
- Part No.:
- LT6700IDCB-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LT6700IDCB-3#TRMPBF.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,309
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT6700IDCB-3#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 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 LT6700IDCB-3#TRMPBF datasheet, LT6700IDCB-3#TRMPBF pinout, LT6700IDCB-3#TRMPBF application, or LT6700IDCB-3#TRMPBF equivalent, this page delivers verified specifications, package mapping, temperature-grade validation (–40°C to 85°C), and direct alternative part comparisons for reliable design-in and BOM continuity planning.
Technical Context
The LT6700IDCB-3#TRMPBF implements two independent comparators, each with one externally accessible noninverting input (+INA, +INB) and the other internally tied to a precision 400mV reference. Its Over-The-Top® input architecture allows input voltages up to 36V (relative to GND) regardless of supply voltage (1.4V–18V), supporting high-side sensing without level-shifting circuitry.
Both open-collector outputs (OUTA, OUTB) sink ≥5mA over temperature and tolerate off-state voltages up to 18V, enabling direct interface with higher-voltage logic or relay drivers. Internal hysteresis eliminates external feedback components and ensures stable switching under noisy conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - supports operation from single-cell Li-ion or alkaline up to industrial 12V/15V rails. |
| 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 precise trip-point stability without calibration. |
| Hysteresis | 6.5mV typ - suppresses chatter on slow or noisy input signals without external resistors. |
| Input Bias Current | ±10nA max - minimizes voltage error across high-impedance divider networks (e.g., >1MΩ). |
| Operating Temp Range | –40°C to +85°C - qualified for industrial control and automotive cabin electronics. |
| Output Sink Current | >5mA guaranteed - directly drives LEDs, small relays, or MOSFET gates without buffer stages. |
Pinout & Package
LT6700IDCB-3#TRMPBF uses a 6-lead (2mm × 3mm) plastic DFN package (DCB6) with exposed pad internally connected to GND. The package is lead-free, RoHS-compliant, and optimized for thermal performance (θJA = 64°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA | Open-collector output of Comparator A | Sinks load current; off-state voltage may reach 18V above GND - enables level-translated signaling. |
| GND | Ground reference and reference low-side return | Common return for internal 400mV reference and all circuit paths; exposed pad must be soldered for thermal integrity. |
| +INA | Noninverting input of Comparator A | Accepts –0.3V to 18V (vs GND); compares against internal 400mV reference - used for high-side voltage monitoring. |
| OUTB | Open-collector output of Comparator B | Independent sinking output; electrically isolated from OUTA - supports dual-threshold or window detection. |
| VS | Core supply voltage | Powers comparator core and reference; decoupling capacitor required near pin for noise immunity. |
| +INB | Noninverting input of Comparator B | Identical electrical behavior to +INA; enables simultaneous monitoring of two separate rails or conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Dual noninverting-input configuration | Enables direct high-side sensing of two independent voltages relative to the same 400mV threshold - ideal for redundant or dual-rail monitoring. |
| Over-The-Top® input capability | Allows input signals up to 18V (or 36V for HV variants) while operating from sub-2V supplies - eliminates need for external level shifters or charge pumps. |
| Integrated 400mV reference | Provides stable, low-drift threshold without external components - reduces BOM count and PCB area in space-constrained designs. |
| Internal hysteresis | 6.5mV typical hysteresis eliminates requirement for external positive feedback resistors - simplifies layout and improves reliability. |
| Wide temperature qualification | Specified and tested over –40°C to +85°C - suitable for uncontrolled industrial environments and automotive interior applications. |
Applications
| Battery Voltage Monitor | Power-Rail Supervisor |
|---|---|
Use Scenario: Monitoring alkaline AA cell voltage during discharge to trigger low-battery warning before cutoff. IC Role / Device Role / Timing Role: Dual comparator detects when VBATT crosses 1.6V and 2.0V thresholds using internal 400mV reference scaled by external resistor dividers. Use Value: Consumes only ~10µA total, extending battery life; hysteresis prevents false triggering near trip points. | Use Scenario: Validating 3.3V and 5V system rails in an industrial PLC controller during startup and runtime. IC Role / Device Role / Timing Role: LT6700IDCB-3#TRMPBF compares each rail against 400mV reference (via scaling) to assert fault flags if either falls out of spec. Use Value: Single IC replaces two discrete comparators + reference; open-collector outputs interface directly with 24V PLC logic. |
| Window Comparator | Automotive Cabin Sensor Interface |
Use Scenario: Detecting valid sensor output range (e.g., 0.5V–4.5V) from a temperature transducer in HVAC control. IC Role / Device Role / Timing Role: One comparator monitors upper limit (+INB), the other lower limit (+INA); both referenced to 400mV with appropriate scaling. Use Value: No external hysteresis components needed; dual noninverting inputs simplify resistor network topology. | Use Scenario: Monitoring 12V battery health and ignition-switch status in automotive body control modules. IC Role / Device Role / Timing Role: LT6700IDCB-3#TRMPBF senses battery voltage (scaled) and ignition line (directly, via Over-The-Top® input) with independent outputs. Use Value: Withstands load-dump transients up to 36V; operates reliably down to 1.4V during cranking events. |
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-1#TRMPBF | One inverting (+INA) and one inverting (–INB) input - configured for standard window comparator topology. | Requires inverted signal path for one channel; less suitable for dual high-side monitoring. | Select when implementing classic window detection with shared reference and complementary input polarities. |
| TLV3702IDR | Single-supply dual comparator with 1.24V reference; no internal hysteresis; 850nA quiescent current; SOT-23-8 package. | Lacks integrated hysteresis and fixed low-voltage reference; requires external 400mV source or resistor divider for equivalent threshold. | Choose for ultra-low-power applications where external hysteresis and reference are acceptable trade-offs for smaller footprint. |
Compared with LT6700IDCB-1#TRMPBF, the LT6700IDCB-3#TRMPBF enables true parallel high-side monitoring without signal inversion, while TLV3702IDR offers lower IQ but demands additional components to match reference accuracy and hysteresis - making LT6700IDCB-3#TRMPBF optimal for compact, self-contained threshold detection.
Availability
LT6700IDCB-3#TRMPBF is available at Aetrix Electronics and suitable for industrial control systems, automotive cabin electronics, and handheld instrument power management requiring stable component supply across extended temperature ranges.
Supply support for LT6700IDCB-3#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LT6700 family was designed specifically for low-power, high-accuracy voltage monitoring in space- and energy-constrained systems - integrating reference, hysteresis, and Over-The-Top® inputs to eliminate external components in battery and power-supply supervision.
FAQ
What is the function of the exposed pad on the LT6700IDCB-3#TRMPBF DFN package?
The exposed pad on the LT6700IDCB-3#TRMPBF is internally connected to GND and must be soldered to a PCB thermal pad for optimal thermal performance. It reduces θJA to 64°C/W and ensures reliable operation under sustained 5mA output sink conditions. Leaving it unconnected degrades thermal dissipation and may cause junction temperature exceedance in high-ambient environments.
Can LT6700IDCB-3#TRMPBF monitor input voltages higher than its VS supply?
Yes, LT6700IDCB-3#TRMPBF supports Over-The-Top® operation: +INA and +INB accept voltages from –0.3V to 18V (vs GND) regardless of VS (1.4V–18V). This allows direct monitoring of 12V or 15V rails while powered from a 3.3V supply - eliminating level-shifters and reducing component count in multi-rail systems.
How does the internal 400mV reference affect threshold accuracy in LT6700IDCB-3#TRMPBF?
The LT6700IDCB-3#TRMPBF's internal 400mV reference contributes to a total threshold error of ±1.25% max at 25°C, including reference drift, comparator offset, and hysteresis effects. This accuracy holds across the full –40°C to +85°C range, enabling reliable trip-point setting in industrial environments without trimming or calibration.
Is LT6700IDCB-3#TRMPBF pin-compatible with other LT6700 variants in the DFN package?
Yes, all LT6700x DFN variants (e.g., LT6700IDCB-1#TRMPBF, LT6700IDCB-2#TRMPBF, LT6700IDCB-3#TRMPBF) share identical DCB6 pinout and footprint. Only the input polarity differs: LT6700IDCB-3#TRMPBF has two noninverting inputs (+INA, +INB), while others use inverting or mixed configurations - requiring schematic updates but no PCB redesign.
What is the maximum sink current guaranteed for LT6700IDCB-3#TRMPBF outputs over temperature?
LT6700IDCB-3#TRMPBF 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 VS = 5V. This enables direct driving of LEDs, optocouplers, or small-signal MOSFET gates without external buffers in industrial and automotive interfaces.
LT6700IDCB-3#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-3#TRMPBF FAQ
1.How can I place an order for LT6700IDCB-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700IDCB-3#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-3#TRMPBF reliable?
The price and inventory of LT6700IDCB-3#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-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6700IDCB-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700IDCB-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700IDCB-3#TRMPBF?
LT6700IDCB-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700IDCB-3#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-3#TRMPBF?
For technical support, including LT6700IDCB-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700IDCB-3#TRMPBF requirements.
6.How does Aetrix verify that LT6700IDCB-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6700IDCB-3#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-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6700IDCB-3#TRMPBF?
All LT6700IDCB-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700IDCB-3#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-3#TRMPBF part is unused and in its original packaging.
Return procedure for LT6700IDCB-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT6700IDCB-3#TRMPBF Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
