Texas Instruments LMC6762BIM

Overview

LMC6762BIM from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with push-pull output, designed for ultra-low-power battery-operated systems. It delivers 10 μA max supply current per comparator, operates from 2.7V to 15V, and achieves rail-to-rail input common-mode range exceeding both supplies - enabling direct sensing near ground or V+ in 3V digital systems.

For engineers reviewing the LMC6762BIM datasheet, LMC6762BIM pinout, LMC6762BIM application, or LMC6762BIM equivalent, this page provides verified technical context, real-world timing behavior (420 ns propagation delay @ 100 mV overdrive, 5V), SOIC-8 package mapping, and validated alternatives for portable electronics, metering, and low-voltage monitoring designs.

Technical Context

The LMC6762BIM implements two independent high-impedance CMOS comparators sharing a single SOIC-8 package. Its rail-to-rail input stage supports common-mode voltages from −0.3V to V+ + 0.3V across 2.7–15V supplies, while the push-pull output drives logic directly without pull-up resistors - eliminating external components in level-shifting and zero-crossing detection circuits.

It features guaranteed operation at 2.7V with 75 dB CMRR and 80 dB PSRR, 3 mV typical input offset voltage, and 0.02 pA typical input bias current. Propagation delay varies with overdrive (420 ns @ 100 mV, 5V) and load (2.5 mA), and short-circuit protection limits output current to 40 mA - critical for robustness in handheld and alarm applications.

Key Specifications

Pinout & Package

LMC6762BIM is housed in an 8-pin SOIC (D0008A) package with 1.27 mm pitch, 3.91 mm body width, and 1.75 mm max height - compatible with standard surface-mount reflow profiles (MSL Level-1, 260°C peak).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMC6762BIM, LMC6772BIM offers identical functionality except open-drain output - requiring redesign for pull-up placement - while TLV3702IDR trades higher precision and lower voltage support for incompatible pinout and reduced ruggedness, making neither a pin-compatible replacement.

Availability

LMC6762BIM is available at Aetrix Electronics and suitable for laptop computers, handheld metering systems, and alarm & monitoring circuits requiring stable component supply across extended product lifecycles.

Supply support for LMC6762BIM 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

Texas Instruments is a global semiconductor leader focused on analog and embedded processing technologies, with decades of expertise in precision analog ICs and low-power design.

The LMC6762BIM belongs to TI's micropower comparator product line, engineered specifically for battery-constrained applications demanding rail-to-rail input, push-pull output, and guaranteed 2.7V operation - targeting portable instrumentation and safety-critical monitoring.

FAQ

What is the maximum supply voltage rating for the LMC6762BIM?

The LMC6762BIM has an absolute maximum supply voltage (V+ – V−) of 16V, with recommended operating range from 2.7V to 15V. Exceeding 16V risks permanent damage; operation above 15V is not characterized or guaranteed. The device maintains full electrical specifications across its 2.7–15V operating range, including input common-mode and output swing performance.

Does the LMC6762BIM support rail-to-rail input voltage beyond the supply rails?

Yes - the LMC6762BIM's input common-mode voltage range extends to (V−) − 0.3V and (V+) + 0.3V, confirmed across 2.7V, 5V, and 15V supplies. This allows direct sensing of signals slightly below ground or above V+, such as battery terminal voltages or sensor outputs in unregulated systems - a key advantage over standard comparators.

Can the LMC6762BIM drive logic inputs directly without external components?

Yes - the LMC6762BIM features a push-pull output stage that actively sources and sinks current, enabling direct connection to TTL, CMOS, and microcontroller GPIO pins without pull-up resistors. It delivers VOH ≥ 4.6V and VOL ≤ 0.4V at 5V supply and 5 mA load, meeting standard logic-high/low thresholds.

What is the guaranteed propagation delay for the LMC6762BIM at 2.7V supply?

At V+ = 2.7V, the LMC6762BIM guarantees tPLH ≤ 420 ns and tPHL ≤ 450 ns under 100 mV input overdrive and 2.5 mA load - per the datasheet's 2.7V Electrical Characteristics table. These values are tested and ensured across the full −40°C to +85°C junction temperature range.

Is the LMC6762BIM pin-compatible with the LMC6762AIM?

Yes - both LMC6762BIM and LMC6762AIM share identical SOIC-8 (D0008A) packaging, pinout, and functional block diagram. The only differences are grade-specific parameters: LMC6762BIM specifies 15 mV max input offset voltage (vs. 8 mV for AIM), and operates over the same −40°C to +85°C temperature range. No PCB changes are required for substitution.