Analog Devices Inc. LT6700CS6-1#TRMPBF

Overview

LT6700CS6-1#TRMPBF from Analog Devices is a micropower dual comparator with integrated 400mV reference, configured with one inverting and one noninverting input for window comparator operation. It operates from 1.4V to 18V supply, draws only 6.5µA typical quiescent current at 5V, features 6.5mV typical hysteresis, and delivers open-collector outputs sinking >5mA - ideal for low-voltage battery monitoring in portable instrumentation.

For engineers reviewing the LT6700CS6-1#TRMPBF datasheet, LT6700CS6-1#TRMPBF pinout, LT6700CS6-1#TRMPBF application, or LT6700CS6-1#TRMPBF equivalent, key selection criteria include its 400mV internal reference accuracy (±1.25% max at 25°C), Over-The-Top® input capability down to ground, wide supply range, and SOT-23-6 package compatibility with space-constrained designs.

Technical Context

The LT6700CS6-1#TRMPBF integrates two independent comparators sharing a precision 400mV bandgap reference; Comparator A accepts +INA (noninverting), Comparator B accepts –INB (inverting), with internal reference connections fixed per variant. Its Over-The-Top® input architecture allows inputs to operate down to GND and up to 18V regardless of VS.

Both open-collector outputs support level translation up to 18V (independent of supply), with guaranteed sink capability >5mA over temperature and low propagation delays (18µs HL, 29µs LH at 5V). Internal hysteresis simplifies stable threshold detection without external components.

Key Specifications

Pinout & Package

Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, tape-and-reel (500 pcs).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual comparator with reference applications.

Compared with LT6700IS6-1#TRMPBF, the LT6700CS6-1#TRMPBF offers tighter temperature specification (0°C–70°C) and lower quiescent current, making it optimal for cost-sensitive commercial instrumentation. Versus TLV3701CDR, it provides integrated dual comparators, 400mV reference, and internal hysteresis - reducing component count and design complexity for window detection.

Availability

LT6700CS6-1#TRMPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, threshold detectors, and window comparators requiring stable component supply and long-term production continuity.

Supply support for LT6700CS6-1#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, communications, automotive, and consumer markets.

The LT6700 family was designed specifically for low-power, precision voltage monitoring in space- and energy-constrained systems - integrating reference, comparators, and hysteresis into minimal footprints like SOT-23 and DFN.

FAQ

What is the reference voltage tolerance of the LT6700CS6-1#TRMPBF over temperature?

The LT6700CS6-1#TRMPBF features a 400mV internal reference with total threshold error of ±1.25% maximum at 25°C. Over the full 0°C to 70°C specified temperature range, the rising input threshold voltage varies from 391.0mV to 409.0mV (min/max), and falling threshold from 383.5mV to 403.5mV - resulting in a worst-case reference deviation of approximately ±2.25% relative to nominal 400mV.

Can the LT6700CS6-1#TRMPBF operate from a 1.4V supply while driving a 5mA load?

Yes, the LT6700CS6-1#TRMPBF is fully specified to operate from 1.4V to 18V. At VS = 1.4V and IOUT = 0.5mA, the output low voltage is guaranteed ≤250mV. While the >5mA sink capability is characterized at higher supplies, the device maintains functional output drive down to 1.4V - confirmed by VOL ≤250mV at 0.5mA and IOFF ≤1µA at 1.4V.

How does the input polarity configuration of LT6700CS6-1#TRMPBF differ from LT6700CS6-2#TRMPBF?

The LT6700CS6-1#TRMPBF has one noninverting input (+INA) and one inverting input (–INB), enabling window comparator topologies where one comparator detects upper threshold and the other lower threshold. In contrast, LT6700CS6-2#TRMPBF provides two inverting inputs (–INA, –INB), suited for dual low-side threshold detection or OR logic configurations.

Is the LT6700CS6-1#TRMPBF pin-compatible with the LT6700HVCS6-1#TRMPBF?

Yes, the LT6700CS6-1#TRMPBF and LT6700HVCS6-1#TRMPBF share identical 6-lead TSOT-23 (S6) pinout and footprint. However, the HV version supports higher absolute maximum input/output voltages (up to 36V vs 18V) and operates over an extended supply range (1.4V–18V remains unchanged), making it suitable for harsher transient environments - but not a drop-in replacement without verifying voltage stress margins.

Does the LT6700CS6-1#TRMPBF require external hysteresis components?

No, the LT6700CS6-1#TRMPBF 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 transitions in the presence of input noise or slow-moving signals - a key design simplification versus basic comparators like LM393.