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Analog Devices Inc. LT6700CS6-1#TRPBF
- Part No.:
- LT6700CS6-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LT6700CS6-1#TRPBF.pdf
- Description:
- IC COMPARATR 2 W/VOLT REF TSOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,194
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Product details
Overview
LT6700CS6-1#TRPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, designed for low-voltage system monitoring in battery-powered applications. It features one inverting and one noninverting input (enabling window comparator configurations), operates from 1.4V to 18V supply, draws only 6.5µA typical quiescent current at 5V, and delivers open-collector outputs sinking >5mA with level-translating capability up to 18V.
For engineers reviewing the LT6700CS6-1#TRPBF datasheet, LT6700CS6-1#TRPBF pinout, LT6700CS6-1#TRPBF application, or LT6700CS6-1#TRPBF equivalent, this part supports precision threshold detection, battery voltage supervision, industrial control sensing, and relay driving where ultra-low power, internal reference accuracy (±1.25% max at 25°C), and wide input/output voltage range are critical.
Technical Context
The LT6700CS6-1#TRPBF integrates two independent comparators sharing a single 400mV internal reference; Comparator A uses +INA (noninverting) while Comparator B uses –INB (inverting), enabling asymmetric window detection. Each comparator includes built-in 6.5mV typical hysteresis to prevent oscillation under slow-moving inputs.
Its Over-The-Top® input architecture allows inputs to operate down to GND and up to 18V regardless of supply voltage, and open-collector outputs support pull-up to any voltage ≤18V - decoupling output logic levels from VS. The device is specified over 0°C to 70°C ambient temperature with guaranteed performance from –40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.4V to 18V - enables direct operation from single-cell Li-ion, alkaline, or industrial rails without LDO pre-regulation. |
| Quiescent Current | 6.5µA typ at 5V - supports multi-year battery life in always-on monitoring circuits. |
| Reference Accuracy | ±1.25% max at 25°C - ensures reliable trip-point stability without external trimming. |
| Hysteresis | 6.5mV typ - eliminates need for external positive feedback resistors in noisy environments. |
| Input Bias Current | ±10nA max - minimizes voltage error across high-impedance sensor dividers (e.g., 1MΩ networks). |
| Output Sink Current | >5mA guaranteed - directly drives LEDs, small relays, or logic gates without external buffers. |
| Threshold Tempco | <100ppm/°C - maintains <±3mV drift over –40°C to 85°C, critical for automotive and industrial sensors. |
Pinout & Package
LT6700CS6-1#TRPBF is housed in a 6-lead plastic TSOT-23 package (1mm height), with exposed pad not connected internally. Pin 7 is absent; thermal pad is optional for PCB connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA (Pin 1) | Open-collector output of Comparator A | Sinks >5mA; pull-up voltage may be up to 18V, independent of VS - enables level-shifting to higher logic domains. |
| GND (Pin 2) | Ground reference and reference low-side | Shared return for internal 400mV reference and comparator core; must be low-impedance for stable threshold accuracy. |
| +INA (Pin 3) | Noninverting input of Comparator A | Accepts voltages from –0.3V to 18V vs GND; used with internal 400mV reference to detect rising thresholds (e.g., battery OK). |
| –INB (Pin 4) | Inverting input of Comparator B | Accepts voltages from –0.3V to 18V vs GND; compares against same 400mV reference to detect falling thresholds (e.g., battery low). |
| VS (Pin 5) | Core supply voltage | Powers comparator core and reference; no regulation required - operates down to 1.4V for deep-discharge monitoring. |
| OUTB (Pin 6) | Open-collector output of Comparator B | Independent of OUTA; supports dual-output logic (e.g., separate HIGH/LOW flags) with identical sink capability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator + 400mV reference | Eliminates external reference IC and resistor network, reducing BOM count and layout area by ≥3 components. |
| Input polarity configuration (–1 variant) | Enables true window comparator topology using one device: +INA detects upper threshold, –INB detects lower threshold. |
| Over-The-Top® input range | Supports direct connection to unregulated battery or sensor outputs without level-shifting circuitry. |
| Internal hysteresis (6.5mV typ) | Removes need for external RC feedback, simplifying design and improving noise immunity in EMI-prone environments. |
| Open-collector outputs with 18V tolerance | Allows interface to 3.3V, 5V, or 12V logic families using single pull-up resistor per output. |
Applications
| Battery Voltage Supervision | Industrial Threshold Detection |
|---|---|
|
Use Scenario: Monitoring AA/AAA alkaline battery voltage to trigger low-battery warning before cutoff. IC Role / Device Role / Timing Role: Dual comparator acts as window detector: +INA monitors rising VBATT ≥1.6V (OK), –INB monitors falling VBATT ≤1.2V (LOW). Use Value: 6.5µA supply current extends operational life beyond 5 years on two AA cells; ±1.25% reference ensures consistent trip points across temperature. |
Use Scenario: Detecting over-temperature condition in motor drive PCB using NTC thermistor divider. IC Role / Device Role / Timing Role: Comparator A triggers fan activation at 70°C; Comparator B disables drive at 85°C - both referenced to same 400mV source. Use Value: Single-device dual-threshold reduces component count vs discrete solutions; hysteresis prevents chatter near trip points. |
| Relay Driving Interface | Handheld Instrument Power Control |
|
Use Scenario: Controlling 12V relay coil based on microcontroller GPIO signal with undervoltage lockout. IC Role / Device Role / Timing Role: LT6700CS6-1#TRPBF compares MCU rail (VS) to internal 400mV reference to enable relay only when VCC >4.0V. Use Value: Open-collector outputs sink 5mA directly into relay base/gate; 18V output tolerance avoids need for external transistor stage. |
Use Scenario: Managing power sequencing in portable multimeter: enabling display backlight only when main battery exceeds 3.0V. IC Role / Device Role / Timing Role: Comparator B asserts active-low enable when input voltage crosses 400mV × (R1+R2)/R2 = 3.0V via external resistor divider. Use Value: Micropower operation preserves standby time; input bias current <10nA prevents loading of high-R dividers used for precision scaling. |
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 |
|---|---|---|---|
| TLV3701CDR | Single comparator with 1.24V reference; no internal hysteresis; 650nA IQ; SOT-23-6 package. | Requires external hysteresis and second comparator for window function; better for ultra-low-power single-threshold use cases. | Select TLV3701CDR only when single-threshold detection suffices and sub-1µA quiescent current is mandatory. |
| MAX9063ASA+ | Dual comparator with 1.182V reference; 12µA IQ; no internal hysteresis; SO-8 package; ±2mV offset. | Larger footprint and higher supply current; requires external hysteresis resistors and reference bypassing. | Choose MAX9063ASA+ if higher reference voltage improves SNR in high-noise analog front-ends and SO-8 layout is acceptable. |
Compared with TLV3701CDR and MAX9063ASA+, the LT6700CS6-1#TRPBF uniquely integrates dual comparators, 400mV reference, and internal hysteresis in a space-constrained TSOT-23 package - delivering full window detection functionality with lowest component count and lowest quiescent current among verified alternatives.
Availability
LT6700CS6-1#TRPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, industrial control systems, handheld instruments, and automotive monitor and controls requiring stable component supply across commercial temperature grades.
Supply support for LT6700CS6-1#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, communications, automotive, and consumer markets since 1965.
The LT6700 family was engineered specifically for ultra-low-power, precision voltage monitoring in resource-constrained systems - emphasizing internal reference accuracy, wide supply range, and minimal external component requirements.
FAQ
What is the operating temperature range for the LT6700CS6-1#TRPBF?
The LT6700CS6-1#TRPBF is specified for 0°C to 70°C ambient operation, with functional guarantee from –40°C to 85°C. Its electrical characteristics - including reference accuracy, hysteresis, and supply current - are fully characterized and tested across the 0°C to 70°C range per the datasheet's "C-grade" specifications. This makes LT6700CS6-1#TRPBF suitable for commercial and extended-industrial environments where moderate thermal stress is expected.
Does the LT6700CS6-1#TRPBF require external hysteresis components?
No, the LT6700CS6-1#TRPBF includes internal hysteresis of 6.5mV typical (2mV to 11.5mV over temperature), eliminating the need for external positive feedback resistors. This built-in hysteresis stabilizes output behavior during slow-rising or noisy input transitions - a key advantage for battery voltage monitoring and industrial sensor interfaces where board space and design complexity must be minimized. The LT6700CS6-1#TRPBF datasheet confirms hysteresis is inherent to the comparator core.
Can the LT6700CS6-1#TRPBF inputs operate below ground?
Yes, the LT6700CS6-1#TRPBF inputs tolerate voltages down to –0.3V relative to GND, as stated in Absolute Maximum Ratings and confirmed in the PIN FUNCTIONS section. This Over-The-Top® capability allows direct interfacing with signals that dip slightly below ground - such as certain sensor outputs or AC-coupled waveforms - without clamping diodes or level-shifters. However, input current must be limited to <10mA if voltage falls below –0.3V, per Note 3 in the datasheet.
What is the maximum output voltage the LT6700CS6-1#TRPBF can switch?
The LT6700CS6-1#TRPBF open-collector outputs support off-state voltages up to 18V above GND, independent of the VS supply voltage. This means OUTA and OUTB can safely interface with 3.3V, 5V, or 12V logic families using appropriate pull-up resistors - even when VS is as low as 1.4V. The 18V rating applies to the standard LT6700 series; the HV variant (LT6700HV) supports up to 36V, but LT6700CS6-1#TRPBF is not an HV part.
How does the LT6700CS6-1#TRPBF achieve precision threshold detection with only a 400mV reference?
The LT6700CS6-1#TRPBF achieves precision threshold detection by combining its highly stable 400mV internal reference (±1.25% max error at 25°C) with low input bias current (±10nA max) and tight input offset matching. External resistor dividers scale system-level voltages (e.g., battery voltage) down to match the 400mV reference - and because input bias current is negligible, divider ratio errors remain minimal even with high-value resistors (e.g., 1MΩ). This architecture enables accurate, low-drift trip points without calibration, as validated in the LT6700CS6-1#TRPBF Typical Performance Characteristics graphs.
LT6700CS6-1#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 @ 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
LT6700CS6-1#TRPBF FAQ
1.How can I place an order for LT6700CS6-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6700CS6-1#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 LT6700CS6-1#TRPBF reliable?
The price and inventory of LT6700CS6-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6700CS6-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6700CS6-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6700CS6-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6700CS6-1#TRPBF?
LT6700CS6-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6700CS6-1#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 LT6700CS6-1#TRPBF?
For technical support, including LT6700CS6-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6700CS6-1#TRPBF requirements.
6.How does Aetrix verify that LT6700CS6-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6700CS6-1#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 LT6700CS6-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6700CS6-1#TRPBF?
All LT6700CS6-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6700CS6-1#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 LT6700CS6-1#TRPBF part is unused and in its original packaging.
Return procedure for LT6700CS6-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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