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Texas Instruments LMC7211BIM5/NOPB
- Part No.:
- LMC7211BIM5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7211BIM5/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,286
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Product details
Overview
LMC7211BIM5/NOPB from Texas Instruments is a micropower CMOS comparator in SOT-23-5 package, featuring rail-to-rail input voltage range (beyond V− and V+), push-pull output capable of sourcing/sinking ≥4.45V/≤0.55V at 5V with 5mA load, and 420ns propagation delay (low-to-high) at 5V. It operates from 2.7V to 15V supply and draws only 7μA typical supply current - ideal for battery-powered sensor interface and low-voltage monitoring circuits.
For engineers reviewing the LMC7211BIM5/NOPB datasheet, LMC7211BIM5/NOPB pinout, LMC7211BIM5/NOPB application, or LMC7211BIM5/NOPB equivalent, key selection considerations include its 5-pin SOT-23 footprint, 5mV max input offset voltage (B-grade), rail-to-rail input beyond supply rails, push-pull output eliminating external pull-up, and suitability for space-constrained portable electronics requiring ultra-low quiescent current.
Technical Context
The LMC7211BIM5/NOPB implements a CMOS input stage enabling rail-to-rail common-mode input range extending ≥0.2V beyond both supply rails, critical for direct sensing of signals near V+ or ground in single-supply systems. Its push-pull output stage delivers full logic-level swing without external components, supporting direct drive of TTL/CMOS loads and small LEDs.
Specified across 2.7V, 5V, and 15V supplies, it maintains stable performance over wide voltage ranges - including 75dB CMRR at 2.7V and 82dB at 15V - and exhibits ultra-low input bias current (0.04pA typical) and input offset voltage drift (1.0μV/°C at 5V), making it suitable for high-impedance sensor front-ends and precision threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 15V - supports operation across depleted battery voltages and standard logic rails without level-shifting. |
| Input Offset Voltage (max) | 5mV (B-grade) - enables accurate threshold detection with minimal calibration in low-voltage sensor interfaces. |
| Supply Current (typ) | 7μA at 5V - extends battery life in portable devices; remains stable across temperature and supply voltage. |
| Propagation Delay (tPLH) | 420ns at 5V, 100mV overdrive - sufficient for medium-speed monitoring (e.g., power-good, battery charge state). |
| Input Common-Mode Range | Extends ≥0.2V beyond V− and V+ - allows direct sensing of signals at supply rails (e.g., VCC monitoring, current-sense resistor drop). |
| Output Type | Push-pull - eliminates need for external pull-up resistors; drives logic inputs and LEDs directly with rail-aligned VOH/VOL. |
| ESD Tolerance | 2kV HBM - provides baseline robustness for handling and board-level integration in consumer electronics. |
Pinout & Package
SOT-23-5 surface-mount package (3.05mm × 3.00mm × 1.43mm), RoHS-compliant, tape-and-reel (3000 pcs/reel), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Push-pull digital output; sinks up to 45mA / sources up to 30mA; swings rail-to-rail under load. |
| 2 (–IN) | Inverting Input | High-impedance CMOS node; accepts signals from −0.3V to V+ + 0.3V - usable for zero-crossing detection. |
| 3 (V–) | Negative Supply / Ground | Reference return for single-supply operation; supports true ground-referenced inputs. |
| 4 (+IN) | Non-inverting Input | High-impedance CMOS node; identical voltage range and leakage as –IN; enables flexible threshold configuration. |
| 5 (V+) | Positive Supply | Accepts 2.7V–15V; powers internal circuitry and defines output swing limits; no reverse polarity protection. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | Enables direct sensing of VCC or ground-referenced signals without attenuators or level shifters - reduces BOM count and layout area. |
| 7μA typical supply current | Extends operational lifetime in coin-cell or Li-ion powered devices; allows use in always-on wake-up comparators. |
| Push-pull output | Drives TTL/CMOS loads directly; eliminates external pull-up resistors and associated power loss/noise coupling. |
| 5mV max input offset (B-grade) | Supports precise voltage window detection in battery fuel gauging or overvoltage lockout without trimming. |
| 2.7V to 15V operating range | Single device qualifies across multiple platforms - from 3V IoT sensors to 12V industrial monitoring - simplifying inventory. |
Applications
| Battery Voltage Monitor | Optical Sensor Interface |
|---|---|
|
Use Scenario: Detecting low-battery condition in handheld medical devices using a resistive divider from Li-ion cell (3.0–4.2V). IC Role / Device Role / Timing Role: Comparator compares divided cell voltage against 1.25V reference; triggers shutdown when <3.2V. Use Value: Rail-to-rail input accepts full divider output range; 5mV offset ensures ±20mV detection accuracy; 7μA current minimizes drain during sleep mode. |
Use Scenario: Converting ambient light intensity from photodiode into digital on/off signal for smart lighting control. IC Role / Device Role / Timing Role: Compares photodiode current-derived voltage against adjustable threshold; outputs clean logic edge for microcontroller interrupt. Use Value: 0.04pA input bias avoids loading high-impedance transimpedance amplifier; rail-to-rail input accommodates signal swing near ground or VCC. |
| PCMCIA Card Status Detection | Power Supply Sequencing Monitor |
|
Use Scenario: Detecting insertion/removal of PCMCIA cards in legacy notebook designs where card presence is signaled by 3.3V rail activation. IC Role / Device Role / Timing Role: Compares 3.3V rail to 1.65V reference; asserts "CARD_PRESENT" flag to host controller. Use Value: 1.43mm height fits Type III PCMCIA mechanical envelope; 2.7V min supply ensures function during brown-out; push-pull output drives FPGA I/O directly. |
Use Scenario: Validating correct startup order of multi-rail power supplies (e.g., 1.8V before 3.3V) in FPGA-based systems. IC Role / Device Role / Timing Role: Each LMC7211BIM5/NOPB monitors one rail against reference; outputs enable downstream regulators only when valid. Use Value: Input common-mode range beyond rails allows direct connection to unattenuated supply nodes; 420ns delay ensures fast fault response without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7221BIM5/NOPB | Same SOT-23-5 package and B-grade offset, but open-drain output instead of push-pull. | Requires external pull-up; supports mixed-voltage interfacing (e.g., 5V output driving 3.3V logic), unlike LMC7211BIM5/NOPB. | Select LMC7221BIM5/NOPB only if level translation or wired-OR functionality is required; otherwise LMC7211BIM5/NOPB offers simpler, lower-component-count implementation. |
| TLV3701DBVR | 5-pin SOT-23, 1μA supply current, 360ns propagation delay, rail-to-rail input, push-pull output - but 6.5mV max offset (higher than LMC7211BIM5/NOPB's 5mV). | Better speed and lower current, but reduced DC accuracy; not specified at 15V (max 16V abs, 5.5V operating). | Choose TLV3701DBVR for ultra-low-power, high-speed applications below 5.5V where 1.5mV extra offset is acceptable; retain LMC7211BIM5/NOPB for 15V operation or tighter threshold tolerance. |
Compared with LMC7221BIM5/NOPB, LMC7211BIM5/NOPB eliminates external pull-up components and simplifies PCB layout, while TLV3701DBVR trades 1.5mV offset tolerance and 15V capability for lower current and faster response - making LMC7211BIM5/NOPB optimal for precision, wide-supply, component-minimized designs.
Availability
LMC7211BIM5/NOPB is available at Aetrix Electronics and suitable for battery-powered medical wearables, optical sensor modules, PCMCIA status detection, and multi-rail power sequencing requiring stable component supply across extended product lifecycles.
Supply support for LMC7211BIM5/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 delivering analog and embedded processing solutions, with decades of expertise in precision analog ICs and low-power design.
The LMC7211BIM5/NOPB belongs to TI's LMC72xx rail-to-rail micropower comparator family, engineered specifically for space- and energy-constrained portable electronics requiring reliable threshold detection without external support components.
FAQ
What is the maximum supply voltage rating for the LMC7211BIM5/NOPB?
The LMC7211BIM5/NOPB has an absolute maximum supply voltage (V+ − V−) of 16V, with recommended operating range from 2.7V to 15V. Operation at 15V is fully characterized per datasheet Section 4.4, including output swing, propagation delay, and supply current - confirming robust performance at the upper end of its operating window.
Does the LMC7211BIM5/NOPB support rail-to-rail input, and how far beyond the rails does it extend?
Yes, the LMC7211BIM5/NOPB supports rail-to-rail input with common-mode range extending at least 0.2V beyond both V− and V+ across all supply voltages (e.g., −0.2V to 5.2V at 5V supply). This enables direct sensing of signals at ground or VCC - such as power supply monitoring or zero-crossing detection - without external biasing networks.
What is the input offset voltage specification for the LMC7211BIM5/NOPB, and which grade does it belong to?
The LMC7211BIM5/NOPB is the B-grade variant, with a maximum input offset voltage of 5mV at 25°C (per Section 4.3 and 4.4 of the datasheet). This tighter tolerance versus the 15mV A-grade (LMC7211AIM5/NOPB) makes it suitable for applications demanding higher DC accuracy, such as precision battery voltage thresholds or calibrated sensor trip points.
Can the LMC7211BIM5/NOPB drive an LED directly, and what are the output current limits?
Yes, the LMC7211BIM5/NOPB push-pull output can directly drive small LEDs. At 5V supply, it sinks up to 45mA and sources up to 30mA (Section 4.4), with VOL ≤ 0.55V at 5mA sink - ensuring sufficient forward voltage margin for red/green LEDs. For reliability, limit continuous LED current to ≤5mA unless thermal derating is applied.
Is the LMC7211BIM5/NOPB pin-compatible with other comparators in the same SOT-23-5 package?
The LMC7211BIM5/NOPB uses standard SOT-23-5 pinout (OUT, –IN, V–, +IN, V+), matching industry convention and enabling drop-in replacement with functionally similar comparators like TLV3701DBVR or MAX9021ASA+. However, electrical differences - such as offset voltage, supply range, and output structure - require validation in the target circuit before substitution.
LMC7211BIM5/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- 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
- :
- SOT-23-5
LMC7211BIM5/NOPB FAQ
1.How can I place an order for LMC7211BIM5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211BIM5/NOPB 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 LMC7211BIM5/NOPB reliable?
The price and inventory of LMC7211BIM5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211BIM5/NOPB is usually 5 days.
3.What payment methods are accepted for LMC7211BIM5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211BIM5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211BIM5/NOPB?
LMC7211BIM5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211BIM5/NOPB 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 LMC7211BIM5/NOPB?
For technical support, including LMC7211BIM5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211BIM5/NOPB requirements.
6.How does Aetrix verify that LMC7211BIM5/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC7211BIM5/NOPB 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 LMC7211BIM5/NOPB meets industry standards.
7.What is the process for return or replacement of LMC7211BIM5/NOPB?
All LMC7211BIM5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211BIM5/NOPB, 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 LMC7211BIM5/NOPB part is unused and in its original packaging.
Return procedure for LMC7211BIM5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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