Texas Instruments LMC7211BIM/NOPB

Overview

LMC7211BIM/NOPB from Texas Instruments is a micropower CMOS comparator in SOIC-8 package, featuring rail-to-rail input voltage range, push-pull output, 5 mV max input offset voltage (B-grade), 7 μA typical supply current at 5 V, and 420 ns propagation delay (low-to-high) at 100 mV overdrive. It serves as a precision threshold detector in battery-powered sensor interfaces and power monitoring circuits.

For engineers reviewing the LMC7211BIM/NOPB datasheet, LMC7211BIM/NOPB pinout, LMC7211BIM/NOPB application, or LMC7211BIM/NOPB equivalent, this page delivers verified electrical specs, SOIC-8 terminal mapping, real-world use cases for portable electronics, and two validated alternative comparators with documented functional and application-level differences.

Technical Context

The LMC7211BIM/NOPB implements a CMOS input stage enabling rail-to-rail common-mode operation beyond V− and V+, with input bias current below 0.04 pA and input offset voltage drift of 1.0 μV/°C at 5 V. Its push-pull output drives ±5 mA loads while maintaining VOL ≤ 0.4 V and VOH ≥ 4.45 V at 5 V supply.

It operates across 2.7 V to 15 V single-supply range, with guaranteed performance at −40°C to +85°C junction temperature. Absolute maximum ratings include 16 V supply, ±30 mA output current, and 2 kV HBM ESD tolerance - supporting robust deployment in space-constrained industrial and portable systems.

Key Specifications

Pinout & Package

LMC7211BIM/NOPB uses the industry-standard SOIC-8 (D) package (4.9 mm × 3.9 mm × 1.75 mm), lead-free with Sn finish, MSL Level-1, and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMC7211BIM/NOPB, LMC7211AIM/NOPB trades offset accuracy for lower unit cost in non-critical detection, while TLV3701CDR offers superior speed and lower offset but mandates redesign for pull-up implementation and lacks push-pull drive capability.

Availability

LMC7211BIM/NOPB is available at Aetrix Electronics and suitable for battery voltage monitoring, optical sensor interface, power supply sequencing, and current sense threshold detection requiring stable component supply across industrial, medical, and portable electronics programs.

Supply support for LMC7211BIM/NOPB 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 specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and low-power design.

The LMC7211 series belongs to TI's rail-to-rail micropower comparator product line, engineered specifically for space- and energy-constrained applications including portable instrumentation, battery management, and sensor signal conditioning.

FAQ

What is the maximum supply voltage rating for the LMC7211BIM/NOPB?

The LMC7211BIM/NOPB has an absolute maximum supply voltage (V+ − V−) of 16 V. Operation beyond this limit risks permanent damage. For reliable long-term use, TI specifies the recommended operating range as 2.7 V to 15 V - fully covering standard 3.3 V, 5 V, and 12 V systems. The LMC7211BIM/NOPB maintains specified performance across this entire range, including propagation delay and offset voltage stability.

Does the LMC7211BIM/NOPB support rail-to-rail input operation?

Yes, the LMC7211BIM/NOPB supports true rail-to-rail input operation with common-mode voltage range extending 0.2 V below V− and 0.3 V above V+ under specified conditions. This allows direct sensing of signals at or beyond supply rails - for example, monitoring a 3.3 V supply with a 3.3 V reference without attenuation. The LMC7211BIM/NOPB achieves this via its CMOS input stage, delivering high input impedance (>10¹² Ω) and sub-picoampere bias current.

What is the input offset voltage specification for the LMC7211BIM/NOPB?

The LMC7211BIM/NOPB is the B-grade version, with a maximum input offset voltage of 5 mV at 25°C (tested per TI's characterization). Typical offset is 3 mV, and temperature drift is 1.0 μV/°C at 5 V supply. This grade provides tighter accuracy than the A-grade (15 mV max), making the LMC7211BIM/NOPB suitable for applications demanding stable threshold detection - such as battery end-of-life alarms or precision window comparators.

Can the LMC7211BIM/NOPB drive logic-level inputs directly?

Yes, the LMC7211BIM/NOPB features a push-pull output capable of sourcing and sinking ≥5 mA at 5 V, with VOH ≥ 4.45 V and VOL ≤ 0.4 V under load. This allows direct interfacing with standard 5 V TTL and CMOS logic inputs - including microcontroller GPIOs, FPGA pins, and gate inputs - without external pull-up resistors or level translators. The LMC7211BIM/NOPB's output structure eliminates timing uncertainty and power loss associated with open-drain alternatives.

Is the LMC7211BIM/NOPB pin-compatible with other comparators in SOIC-8?

The LMC7211BIM/NOPB uses a nonstandard SOIC-8 pinout: Pins 1–4 and 7–8 are functional (IN−, IN+, GND, OUT, V+), while Pins 5, 6, and 8 are NC. It is **not** pin-compatible with generic SOIC-8 comparators like LM393 or TLV3701, which assign active functions to all eight pins. Layout reuse is only possible with other LMC7211 variants (e.g., LMC7211AIM/NOPB); substituting non-LMC7211 devices requires PCB revision due to differing pin assignments and output topology.