Product Overview
LMC7211AIM Micropower CMOS Comparator - Rail-to-Rail Input, Push-Pull Output, Industrial Grade, SOIC-8
Condition
Unused NOS - New Old Stock. Condition is excellent - clean and pristine. Sourced from an electronics distributor consolidating inventory. Evaluation: Visual inspection only. Function testing not performed. Covered by the PartsMine No Hassle Guarantee.
Ships same business day from Idaho. Packed carefully.
Product Overview
National Semiconductor LMC7211AIM - a tiny CMOS Rail-to-Rail input comparator with push-pull output. Draws just 7uA of supply current, making it well-suited for battery-powered and ultra-low-power designs. The AIM suffix identifies three critical attributes: A-grade for lowest offset voltage (0.3mV typical), I for Industrial temperature range (-40C to +85C), and M for the SOIC-8 surface-mount package. Supply voltage range is 2.7V to 15V. National Semiconductor was acquired by Texas Instruments - this is an original National-branded part.
Key Features
- Supply current: 7uA typical - suitable for battery-powered circuits
- Supply voltage: 2.7V to 15V
- Rail-to-Rail input - handles signals up to the supply rail without clipping
- Push-pull output - no external pull-up resistor required
- A-grade: offset voltage 0.3mV typical - highest precision grade
- Industrial temperature range: -40C to +85C
- Package: SOIC-8 surface mount
- Propagation delay: 4us typical - optimized for low power, not high speed
Applications
- Battery monitoring and low-battery threshold detection
- Threshold detectors in handheld and portable instruments
- Zero-crossing detectors in ultra-low-power sensor circuits
- PCMCIA cards and mobile communication devices
- Alarm and security circuits with tight power budgets
- Direct sensor interface applications
Frequently Asked Questions
Does this part require a pull-up resistor on the output?
No. The LMC7211AIM has a push-pull output and drives both high and low states actively. No external pull-up resistor is needed. If you require an open-drain output for wire-OR configurations, the LMC7221 is the correct alternative.
What is the difference between this part and the LMC7211BIM5?
The suffix identifies grade and package. The AIM is the A-grade (lowest offset voltage) in the SOIC-8 package. The BIM5 is B-grade in the smaller SOT-23-5 package. These are not pin-compatible - verify your PCB footprint before ordering.
Is this compatible with Texas Instruments designs that specify LMC7211AIM?
Yes. Texas Instruments acquired National Semiconductor and continued this part under the same model number. This is an original National Semiconductor-branded part. Verify with your bill of materials if original National branding is required for vintage or mil-spec board repairs.
Is this suitable for high-speed switching applications?
No. Typical propagation delay is 4us. This part is optimized for ultra-low power consumption, not speed. For nanosecond-range switching, a different comparator is required.
The A-grade designation and industrial temperature rating make this the highest-precision variant of the LMC7211 family. Verify your package footprint (SOIC-8) and output type (push-pull) before purchase.
