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Texas Instruments LMC7211BIM5X/NOPB
- Part No.:
- LMC7211BIM5X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7211BIM5X/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,060
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Product details
Overview
LMC7211BIM5X/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, 420ns propagation delay (low-to-high, 5V, 100mV overdrive), and 7μA typical supply current at 5V. It serves as a precision signal-level decision element in battery-powered sensor monitoring and low-voltage power supply supervision circuits.
For engineers reviewing the LMC7211BIM5X/NOPB datasheet, LMC7211BIM5X/NOPB pinout, LMC7211BIM5X/NOPB application, or LMC7211BIM5X/NOPB equivalent, key selection criteria include its 5-pin SOT-23 footprint, rail-to-rail input beyond supply rails, push-pull output eliminating external pull-up, sub-1μA quiescent current scalability across 2.7–15V supplies, and offset voltage grades (5mV/15mV) confirmed for LMC7211-N family variants.
Technical Context
The LMC7211BIM5X/NOPB implements a CMOS input stage with ultra-low input bias current (0.04pA typ) and rail-to-rail common-mode input range extending 0.3V beyond V− and V+, enabling direct sensing of signals near supply rails without level-shifting. Its push-pull output drives logic gates or LEDs directly without external components.
It operates across 2.7V to 15V single-supply configurations with specified performance at all three voltages, supporting battery discharge tracking and multi-rail system monitoring. The device's 420ns tPLH and 450ns tPHL (at 2.7V, 100mV overdrive) provide deterministic timing for low-power wake-up and threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 15V - supports full operation from fresh alkaline cells (≈1.5V/cell × 2) through fully charged Li-ion (4.2V) and industrial 12V rails. |
| Input Offset Voltage | 5mV max (LMC7211-NAI grade) - enables accurate threshold detection within ±5mV error at room temperature, critical for precision battery voltage monitoring. |
| Supply Current | 7μA typ at 5V - extends coin-cell or button-cell battery life to multi-year operation in always-on status-monitoring applications. |
| Propagation Delay | 420ns tPLH at 5V, 100mV overdrive - ensures fast response to transient events like overvoltage or zero-crossing without compromising micropower operation. |
| Input Common-Mode Range | V− −0.3V to V+ +0.3V - allows direct interface to sensors operating at ground or rail, eliminating need for bias resistors or op-amp front-ends. |
| Output Drive Capability | Sourcing 4.45V / sinking 0.55V at 5V, 5mA - drives TTL/CMOS inputs or indicator LEDs directly, removing external pull-up resistors and saving board space. |
| ESD Tolerance | 2kV HBM - provides robustness against handling-induced electrostatic discharge in portable assembly environments. |
Pinout & Package
SOT-23-5 package (3.05mm × 3.00mm × 1.43mm), surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Push-pull output | Active high/low digital output; sinks or sources up to 5mA without external components; compatible with 1.8V–5V logic families. |
| 2 (−IN) | Inverting input | High-impedance CMOS node (0.04pA bias); accepts signals from −0.3V to V+ +0.3V - enables ground-referenced or rail-referenced comparisons. |
| 3 (V−) | Negative supply / ground | Reference for single-supply operation; tied to system ground in most portable designs; supports split-supply configurations down to −15V. |
| 4 (+IN) | Non-inverting input | Identical electrical characteristics to −IN; used for threshold comparison against reference or sensor signal with hysteresis configuration. |
| 5 (V+) | Positive supply | Accepts 2.7–15V; internal regulation not required; supply rejection ratio (PSRR) ≥80dB minimizes noise coupling from noisy rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | Enables direct sensing of signals at V− or V+ without attenuation or level-shifting - reduces BOM count by eliminating bias networks in battery monitor ICs. |
| Push-pull output | Eliminates need for external pull-up resistors when interfacing to microcontroller GPIOs or logic gates - saves PCB area and improves rise/fall time consistency. |
| 7μA typical supply current at 5V | Supports >10-year operation on CR2032 coin cell in low-duty-cycle wake-up systems - verified across −40°C to +85°C junction temperature range. |
| 5mV max input offset (NAI grade) | Ensures consistent trip-point accuracy across production lots for applications like Li-ion end-of-discharge detection at 2.8V ±5mV. |
| SOT-23-5 footprint (3.05 × 3.00 mm) | Fits within PCMCIA Type III card height constraint (1.43mm max) - validated for space-constrained mobile accessories and embedded IoT modules. |
Applications
| Battery Voltage Monitoring | Light Sensor Interface |
|---|---|
Use Scenario: Detecting low-battery condition in Bluetooth earbuds using a resistive divider from single-cell Li-ion (3.0–4.2V) to generate threshold reference. IC Role / Device Role / Timing Role: Comparator comparing divided battery voltage against fixed reference; generates interrupt signal to MCU upon crossing 3.0V threshold. Use Value: Ultra-low 7μA supply current prevents self-discharge during standby; rail-to-rail input accommodates full divider swing without clipping. |
Use Scenario: Converting ambient light intensity from photodiode into digital ON/OFF signal for automatic display backlight control in smartwatches. IC Role / Device Role / Timing Role: Threshold detector comparing photodiode current-derived voltage against adjustable reference; output drives enable pin of LED driver IC. Use Value: 0.04pA input bias avoids loading high-impedance photodiode node; 420ns response enables flicker-free transition under rapid light changes. |
| Power Supply Supervision | Zero-Crossing Detection |
Use Scenario: Monitoring 3.3V system rail for brown-out conditions in industrial handheld scanners powered by rechargeable NiMH packs. IC Role / Device Role / Timing Role: Precision comparator comparing 3.3V rail against 2.97V reference (90% nominal); asserts reset signal when undervoltage detected. Use Value: 5mV offset ensures trip point remains within ±0.5% tolerance; PSRR ≥80dB rejects switching regulator ripple on monitored rail. |
Use Scenario: Detecting AC line zero crossings in energy metering modules using resistive divider from 230VAC mains (isolated). IC Role / Device Role / Timing Role: Comparator with hysteresis configured to trigger on polarity reversal; output synchronized to 50Hz/60Hz grid frequency. Use Value: Input common-mode range extending below ground (−0.3V) allows direct connection to center-tapped divider without negative supply; low input current prevents phase shift. |
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 rail-to-rail input, but open-drain output requiring external pull-up; 15V max supply; identical 7μA supply current. | Required where mixed-voltage I/O is needed (e.g., 5V comparator driving 3.3V MCU input); unsuitable for direct LED drive or push-pull logic interfacing. | Select LMC7221BIM5X/NOPB only when level translation or wired-OR bus functionality is required; otherwise LMC7211BIM5X/NOPB offers simpler implementation. |
| TLV3701IDBVR | 5-pin SOT-23, rail-to-rail input, push-pull output; 1.8–5.5V supply range; 1μA supply current; 360ns propagation delay; 3mV offset. | Optimized for ultra-low-voltage (1.8V) operation and lower power; limited to 5.5V max supply - not suitable for 12V industrial monitoring or wide-range battery sensing. | Choose TLV3701IDBVR for sub-2V battery systems (e.g., coin-cell IoT sensors); retain LMC7211BIM5X/NOPB for 2.7–15V flexibility and higher-voltage robustness. |
Compared with LMC7221BIM5X/NOPB, LMC7211BIM5X/NOPB eliminates external pull-up components and supports higher supply voltages; versus TLV3701IDBVR, it trades 6μA higher quiescent current for 2.7–15V operational range and proven reliability in extended-temperature industrial deployments.
Availability
LMC7211BIM5X/NOPB is available at Aetrix Electronics and suitable for battery voltage monitoring, light sensor interface, power supply supervision, and zero-crossing detection requiring stable component supply across automotive infotainment, industrial handhelds, and medical wearables.
Supply support for LMC7211BIM5X/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-N series was developed specifically for space-constrained, battery-operated systems requiring rail-to-rail input capability and micropower consumption - targeting portable instrumentation, sensor nodes, and energy-efficient consumer electronics.
FAQ
What is the maximum supply voltage rating for the LMC7211BIM5X/NOPB?
The LMC7211BIM5X/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 drive, propagation delay, and input offset voltage specifications - making it suitable for industrial 12V rail monitoring and wide-input battery systems.
Does the LMC7211BIM5X/NOPB support true rail-to-rail input operation?
Yes, the LMC7211BIM5X/NOPB features a rail-to-rail input common-mode voltage range extending 0.3V beyond both supply rails (V− −0.3V to V+ +0.3V), verified across −40°C to +85°C. This allows direct comparison of signals referenced to ground or V+ without external level-shifting circuitry - critical for battery fuel gauging and power supply supervisor designs.
What is the output configuration of the LMC7211BIM5X/NOPB and how does it differ from open-drain comparators?
The LMC7211BIM5X/NOPB uses a push-pull output stage capable of actively sourcing and sinking current (≥4.45V high / ≤0.55V low at 5V, 5mA). Unlike open-drain comparators such as LMC7221BIM5X/NOPB, it requires no external pull-up resistor - simplifying layout, improving rise/fall symmetry, and enabling direct drive of logic inputs or LEDs in compact portable devices.
How does the LMC7211BIM5X/NOPB achieve ultra-low supply current, and what is its typical value?
The LMC7211BIM5X/NOPB achieves 7μA typical supply current at 5V through optimized CMOS input and output stages with minimal biasing. This value is measured with output low (Section 4.3), scales predictably across 2.7–15V supplies, and remains stable over temperature - enabling multi-year operation on coin cells in always-on status monitoring applications without compromising speed or accuracy.
Is the LMC7211BIM5X/NOPB pin-compatible with other comparators in the LMC72xx family?
Yes, the LMC7211BIM5X/NOPB shares identical SOT-23-5 pinout with LMC7211AIM5X/NOPB (same package, different offset grade) and LMC7221BIM5X/NOPB (open-drain variant). Pin 1=OUT, Pin 2=−IN, Pin 3=V−, Pin 4=+IN, Pin 5=V+. However, functional differences (push-pull vs. open-drain) require schematic review before substitution - LMC7211BIM5X/NOPB cannot replace LMC7221BIM5X/NOPB without removing external pull-up resistors.
LMC7211BIM5X/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
LMC7211BIM5X/NOPB FAQ
1.How can I place an order for LMC7211BIM5X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211BIM5X/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 LMC7211BIM5X/NOPB reliable?
The price and inventory of LMC7211BIM5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211BIM5X/NOPB is usually 5 days.
3.What payment methods are accepted for LMC7211BIM5X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211BIM5X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211BIM5X/NOPB?
LMC7211BIM5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211BIM5X/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 LMC7211BIM5X/NOPB?
For technical support, including LMC7211BIM5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211BIM5X/NOPB requirements.
6.How does Aetrix verify that LMC7211BIM5X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC7211BIM5X/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 LMC7211BIM5X/NOPB meets industry standards.
7.What is the process for return or replacement of LMC7211BIM5X/NOPB?
All LMC7211BIM5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211BIM5X/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 LMC7211BIM5X/NOPB part is unused and in its original packaging.
Return procedure for LMC7211BIM5X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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