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Texas Instruments LMC7211BIMX
- Part No.:
- LMC7211BIMX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC7211BIMX.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
LMC7211BIMX from Texas Instruments is a micropower CMOS comparator in SOT-23-5 package, featuring rail-to-rail input, push-pull output, 7μA typical supply current at 5V, 420ns propagation delay (low-to-high), and 5mV max input offset voltage (NAI grade). It operates from 2.7V to 15V and serves as a precision signal-level decision device in battery-powered sensor interfaces.
For engineers reviewing the LMC7211BIMX datasheet, LMC7211BIMX pinout, LMC7211BIMX application, or LMC7211BIMX equivalent, key selection considerations include its ultra-low quiescent current, rail-to-rail input beyond supply rails, push-pull drive capability without external pull-up, compact 3.05mm × 3.00mm × 1.43mm footprint, and guaranteed performance across 2.7V/5V/15V supplies.
Technical Context
The LMC7211BIMX implements a CMOS input stage with p-channel and n-channel differential pairs enabling rail-to-rail common-mode input range extending 0.2V beyond V− and V+. Its push-pull output stage delivers ±30mA short-circuit current capability while maintaining logic-compatible VOH/VOL levels across supply voltages.
It is characterized in two offset grades (NAI: 5mV max, NBI: 15mV max) and specified over −40°C to +85°C junction temperature. AC performance includes 420ns tPLH at 100mV overdrive (5V, 25°C), with supply current scaling linearly from 7μA (5V) to ~14μA (15V) under no-load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 15V - supports single-supply operation across battery discharge curves and industrial rails. |
| Input Offset Voltage (max) | 5mV (LMC7211-NAI grade) - enables accurate threshold detection with low-reference circuits. |
| Supply Current (typ) | 7μA at 5V - extends battery life in portable devices; scales predictably with voltage. |
| Propagation Delay (tPLH) | 420ns at 100mV overdrive, 5V - suitable for medium-speed level sensing and zero-crossing detection. |
| Input Common-Mode Range | V− −0.2V to V+ +0.3V - allows direct sensing of signals near or slightly beyond supply rails without level-shifting. |
| Output Type | Push-pull - drives CMOS/TTL loads directly; eliminates need for external pull-up resistors. |
| Package | SOT-23-5 (DBV) - 3.05mm × 3.00mm × 1.43mm footprint ideal for space-constrained PCBs. |
Pinout & Package
SOT-23-5 (DBV) package: 5-pin surface-mount, 1.43mm height, JEDEC MO-178AC compliant. Pin 1 marked by dot; pin numbering counterclockwise from mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node accepting rail-to-rail analog signals; high-impedance (0.04pA bias). |
| 2 | Non-Inverting Input (+) | Differential input node accepting rail-to-rail analog signals; identical impedance and range to Pin 1. |
| 3 | Ground (V−) | Negative supply terminal; referenced for input common-mode and output swing. |
| 4 | Output | Push-pull digital output sourcing/sinking up to 30mA; logic-high ≈ V+ − 0.2V, logic-low ≈ 0.2V (5V). |
| 5 | Positive Supply (V+) | Single-supply or split-supply positive rail; supports 2.7V–15V operation with full spec compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | Accepts inputs down to V− −0.2V and up to V+ +0.3V - enables direct monitoring of supply voltage or current-sense resistor drops. |
| Push-pull output stage | Drives CMOS/TTL loads directly without pull-up; reduces BOM count and board area in discrete logic interface designs. |
| Ultra-low 7μA supply current | Extends battery runtime in always-on sensor nodes; enables use in energy-harvesting systems with microamp budgets. |
| Specified at 2.7V, 5V, and 15V | Guaranteed timing, offset, and output swing across full operating range - simplifies design validation for multi-voltage platforms. |
| 0.04pA input bias current | Supports high-impedance sensor interfacing (e.g., photodiodes, piezoelectric elements) without signal attenuation or drift. |
Applications
| Battery-Powered Sensor Interface | Power Supply Monitoring |
|---|---|
|
Use Scenario: Detecting low-battery condition in handheld medical devices using a resistive divider from Li-ion cell. IC Role / Device Role / Timing Role: Comparator comparing divided cell voltage against 1.225V reference; generates digital alert flag. Use Value: Rail-to-rail input accepts full 0–4.2V cell range; 7μA current minimizes load on aging battery. |
Use Scenario: Monitoring 12V automotive subsystem rail for undervoltage lockout during cold cranking. IC Role / Device Role / Timing Role: Threshold detector comparing rail voltage to 10.5V reference; triggers system reset. Use Value: Input range extends to 12.3V, eliminating need for attenuator; push-pull output drives reset controller directly. |
| Optical Zero-Crossing Detection | PCMCIA Card Status Sensing |
|
Use Scenario: Converting AC line voltage to clean square wave for phase-controlled dimmer in smart lighting. IC Role / Device Role / Timing Role: Zero-crossing comparator with hysteresis; outputs synchronized 50/60Hz timing pulses. Use Value: Input common-mode extends below ground on single supply - enables direct AC coupling with high-value resistors. |
Use Scenario: Detecting card insertion/removal in legacy PCMCIA Type III slot with mechanical switch and pull-up. IC Role / Device Role / Timing Role: Level translator converting 3.3V switch signal to 5V logic for host controller. Use Value: 1.43mm height fits within PCMCIA III envelope; push-pull output ensures fast edge rates into 5V bus capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7221BIM5X/NOPB | Same SOT-23-5 package and offset grade, but open-drain output requiring external pull-up. | Required where output must interface with higher-voltage logic (e.g., 12V I/O) or wired-OR bus configurations. | Select LMC7221BIM5X/NOPB only if level translation or bus sharing is needed; otherwise LMC7211BIMX reduces component count. |
| TLV3701IDBVR | Lower 550nA supply current, 360ns tPLH, but limited 1.8–5.5V supply range and no rail-to-rail input beyond rails. | Better suited for sub-3.3V IoT sensors; cannot replace LMC7211BIMX in 12V or wide-range battery monitoring. | Choose TLV3701IDBVR for ultra-low-power <3.3V systems; avoid when input signals exceed supply or >5.5V operation is required. |
Compared with LMC7221BIM5X/NOPB, LMC7211BIMX eliminates pull-up resistors and simplifies layout; compared with TLV3701IDBVR, it supports wider supply range and true beyond-rail input - critical for power monitoring and legacy interface designs.
Availability
LMC7211BIMX is available at Aetrix Electronics and suitable for battery-powered medical wearables, industrial power supply supervision, optical zero-crossing detection, and PCMCIA card status sensing requiring stable component supply and long-term lifecycle support.
Supply support for LMC7211BIMX 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and energy efficiency.
The LMC7211BIMX belongs to TI's rail-to-rail input, micropower comparator product line, designed specifically for space- and current-constrained portable and industrial sensing applications where accuracy and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for the LMC7211BIMX?
The LMC7211BIMX has an absolute maximum supply voltage (V+ − V−) of 16V. Its recommended operating range is 2.7V to 15V, with full electrical specifications guaranteed across this span. Operation above 15V voids guaranteed performance and risks permanent damage per the Absolute Maximum Ratings table.
Does the LMC7211BIMX support true rail-to-rail input operation?
Yes, the LMC7211BIMX supports input common-mode voltage from V− −0.2V to V+ +0.3V at room temperature, exceeding both supply rails. This enables direct sensing of signals at or slightly beyond V+ or V− - such as battery voltage monitoring or current-sense amplifier outputs - without external level-shifting circuitry.
What is the output configuration of the LMC7211BIMX and how does it differ from open-drain comparators?
The LMC7211BIMX features a push-pull output stage capable of actively sourcing and sinking current. Unlike open-drain comparators (e.g., LMC7221), it requires no external pull-up resistor and delivers full-rail logic levels - VOH ≈ V+ − 0.2V and VOL ≈ 0.2V at 5V - simplifying interface with CMOS/TTL loads.
Is the LMC7211BIMX pin-compatible with other members of the LMC72xx family?
No - the LMC7211BIMX (SOT-23-5) is not pin-compatible with SOIC-8 variants like LMC7211BIMX/NOPB (8-pin) or dual versions such as LMC6762. Its 5-pin SOT-23 layout is unique to single-channel tiny-package comparators; substitution requires PCB redesign unless using identical DBV-packaged variants.
What offset voltage grade does the LMC7211BIMX correspond to, and how is it marked?
The LMC7211BIMX corresponds to the LMC7211-NBI grade with a maximum input offset voltage of 15mV at 25°C. It is marked as "C00B" on the top of the SOT-23-5 package, distinguishing it from the tighter 5mV-grade LMC7211AIM5X/NOPB ("C00A"). Both grades share identical pinout and electrical behavior outside offset specification.
LMC7211BIMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 15V, ±1.35V ~ 7.5V
- :
- 15mV @ 5V
- Voltage - Input Offset (Max):
- 0.04pA @ 5V
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 14µA
- Current - Quiescent (Max):
- 75dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 10µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LMC7211BIMX FAQ
1.How can I place an order for LMC7211BIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211BIMX 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 LMC7211BIMX reliable?
The price and inventory of LMC7211BIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211BIMX is usually 5 days.
3.What payment methods are accepted for LMC7211BIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211BIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211BIMX?
LMC7211BIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211BIMX 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 LMC7211BIMX?
For technical support, including LMC7211BIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211BIMX requirements.
6.How does Aetrix verify that LMC7211BIMX is sourced from the original manufacturer or authorized distributors?
All LMC7211BIMX 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 LMC7211BIMX meets industry standards.
7.What is the process for return or replacement of LMC7211BIMX?
All LMC7211BIMX units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211BIMX, 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 LMC7211BIMX part is unused and in its original packaging.
Return procedure for LMC7211BIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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