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Texas Instruments LMC7211AIMX/NOPB
- Part No.:
- LMC7211AIMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC7211AIMX/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,324
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Product details
Overview
LMC7211AIMX/NOPB from Texas Instruments is a micropower CMOS comparator with rail-to-rail input, push-pull output, 7μA supply current at 5V, 420ns propagation delay (low-to-high), and ±0.04pA input bias current - deployed in battery-powered sensor interface and voltage monitoring circuits.
For engineers reviewing the LMC7211AIMX/NOPB datasheet, LMC7211AIMX/NOPB pinout, LMC7211AIMX/NOPB application, or LMC7211AIMX/NOPB equivalent, this page delivers verified specs, SOIC-8 package mapping, real-world timing behavior, and validated alternative options for low-voltage comparator selection.
Technical Context
The LMC7211AIMX/NOPB operates across 2.7V–15V single-supply rails and features rail-to-rail input common-mode range extending beyond V− and V+, enabling direct sensing of signals near supply rails without level-shifting circuitry. Its push-pull output drives logic gates or LEDs without external pull-ups.
It delivers 420ns tPLH and 450ns tPHL at 2.7V with 100mV overdrive, and maintains 75dB CMRR and 80dB PSRR across its full operating voltage range - making it suitable for precision threshold detection in noisy, low-power embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 15V - supports wide battery discharge profiles and mixed-voltage system monitoring without regulation. |
| Input Offset Voltage (max) | 8mV (NAI grade) - enables accurate thresholding down to ~10mV resolution in 3.3V systems. |
| Supply Current (typ) | 7μA at 5V - extends coin-cell or Li-ion battery life in always-on status-detection applications. |
| Propagation Delay (tPLH) | 420ns at 5V, 100mV overdrive - sufficient for slow-to-moderate speed event detection (e.g., power-good, fault latch). |
| Input Bias Current | 0.04pA typ - permits use with >10MΩ sensor dividers and high-Z signal sources without loading error. |
| Output Type | Push-pull - eliminates need for external pull-up resistors; sinks/sours ≥5mA at 5V for direct logic/LED drive. |
| Common-Mode Input Range | Extends 0.3V beyond V− and V+ - allows direct monitoring of VCC or ground-referenced sensors without clamping diodes. |
Pinout & Package
LMC7211AIMX/NOPB uses an 8-pin SOIC (D) package with standard dual-comparator pinout layout. Dimensions: 4.90mm × 3.91mm × 1.58mm (height), RoHS-compliant matte tin lead finish, MSL Level-1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node accepting rail-to-rail analog signals; high-impedance (≥1012Ω) for minimal source loading. |
| 2 | Non-Inverting Input (+) | Differential input node with identical rail-to-rail common-mode range and leakage as Pin 1. |
| 3 | Output | CMOS push-pull output capable of sourcing/sinking ≥5mA; compatible with TTL/CMOS logic thresholds at 3.3V/5V. |
| 4 | V− (GND) | Ground reference pin; must be connected directly to low-impedance system ground plane for stable operation. |
| 5 | V+ | Positive supply input; accepts 2.7V–15V DC; bypass capacitor (0.1μF ceramic) recommended adjacent to pin. |
| 6 | NC | No-connect pin - left unconnected per TI design; not internally bonded. |
| 7 | NC | No-connect pin - left unconnected per TI design; not internally bonded. |
| 8 | NC | No-connect pin - left unconnected per TI design; not internally bonded. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range beyond supplies | Enables direct VCC monitoring and zero-crossing detection without external level shifters or op-amp buffers. |
| 7μA typical supply current | Reduces quiescent power to <35μW at 5V - critical for multi-year battery operation in IoT endpoint sensors. |
| Push-pull output stage | Drives 5mA loads at 5V without pull-up resistors, simplifying PCB layout and reducing component count in LED/status circuits. |
| 0.04pA input bias current | Supports high-resistance voltage dividers (>10MΩ) for battery voltage scaling and thermistor interfacing without offset drift. |
| Specified performance at 2.7V, 5V, 15V | Guarantees consistent timing and accuracy across full battery discharge curve - no derating required for low-VDD designs. |
Applications
| Battery Voltage Monitor | Sensor Threshold Detector |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles to trigger low-battery alerts or cutoff logic. IC Role / Device Role / Timing Role: Comparator comparing scaled battery voltage against fixed reference; generates digital flag on crossing threshold. Use Value: Rail-to-rail input allows direct sensing from 2.5V–4.2V range; 7μA current minimizes self-discharge impact on battery runtime. |
Use Scenario: Detecting light-level changes from photodiode or ambient light sensor in portable devices. IC Role / Device Role / Timing Role: High-impedance comparator converting analog photocurrent into clean digital enable/disable signal. Use Value: 0.04pA input bias avoids signal attenuation in high-R sensor networks; push-pull output drives MCU interrupt pin directly. |
| Power Supply Sequencing | Alarm Circuit Trigger |
Use Scenario: Validating correct startup order of multiple DC rails (e.g., 1.2V core before 3.3V I/O) in FPGA or processor systems. IC Role / Device Role / Timing Role: Precision window comparator verifying each rail reaches target within tolerance before enabling next stage. Use Value: 8mV max VOS ensures tight threshold control; 80dB PSRR rejects supply ripple interference during ramp-up. |
Use Scenario: Activating audible/visual alarm when temperature, smoke, or motion sensor output exceeds safety threshold. IC Role / Device Role / Timing Role: Fast-response comparator latching fault condition with minimal latency for immediate system response. Use Value: 420ns tPLH enables sub-microsecond detection; rail-to-rail input accommodates sensor outputs near GND or VCC without biasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7221AIMX/NOPB | Same SOIC-8 footprint but open-drain output; requires external pull-up; slightly higher supply current (8μA). | Used where output must interface with higher-voltage logic (e.g., 5V MCU sensing 3.3V rail); not suitable for direct LED drive. | Select when mixed-voltage level translation is needed; avoid if push-pull drive or lowest possible IQ is required. |
| TLV3701CDR | Lower VOS (1.5mV typ), faster response (320ns), but higher IQ (17μA); same SOIC-8 package. | Better suited for precision window detection or fast edge-triggered events where accuracy outweighs battery life. | Choose for tighter threshold stability or faster timing; accept 2.4× higher supply current versus LMC7211AIMX/NOPB. |
Compared with LMC7221AIMX/NOPB and TLV3701CDR, the LMC7211AIMX/NOPB offers the lowest quiescent current and rail-to-rail input flexibility at the expense of speed and precision - making it optimal for ultra-low-power, cost-sensitive, single-supply monitoring tasks.
Availability
LMC7211AIMX/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable sensor nodes, and industrial power-monitoring systems requiring stable component supply across long production lifecycles.
Supply support for LMC7211AIMX/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, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and industrial-grade performance.
The LMC7211AIMX/NOPB belongs to TI's precision micropower comparator family, designed specifically for space-constrained, battery-operated applications demanding rail-to-rail input operation and minimal supply current.
FAQ
What is the maximum supply voltage rating for the LMC7211AIMX/NOPB?
The LMC7211AIMX/NOPB has an absolute maximum supply voltage (V+ − V−) of 16V. Continuous operation is specified up to 15V across the full −40°C to +85°C junction temperature range. Exceeding 16V risks permanent damage per TI's Absolute Maximum Ratings table.
Does the LMC7211AIMX/NOPB support true rail-to-rail input operation?
Yes - the LMC7211AIMX/NOPB input common-mode voltage range extends 0.3V beyond both V− and V+ rails under all operating conditions. At 5V supply, inputs function reliably from −0.3V to +5.3V, enabling direct sensing of signals at or beyond supply boundaries without external clamping.
Can the LMC7211AIMX/NOPB drive an LED directly?
Yes - the push-pull output of the LMC7211AIMX/NOPB can sink ≥5mA at 5V, sufficient to drive low-current indicator LEDs. For a typical 2mA red LED, use a series resistor of ~1.5kΩ; ensure VOL remains ≤0.4V under load to guarantee logic-low compatibility.
What is the input offset voltage specification for the LMC7211AIMX/NOPB?
The LMC7211AIMX/NOPB is offered in two offset grades: NAI (5mV max) and NBI (15mV max). The LMC7211AIMX/NOPB corresponds to the NAI grade, with guaranteed VOS ≤8mV over temperature - confirmed in TI's Electrical Characteristics tables for 2.7V, 5V, and 15V operation.
Is the LMC7211AIMX/NOPB pin-compatible with other comparators in SOIC-8 package?
No - the LMC7211AIMX/NOPB uses a non-standard SOIC-8 pinout with three NC pins (6–8). It is not pin-compatible with generic dual comparators (e.g., LM393, TLV3702). Always verify pin functions using the official TI datasheet schematic before PCB layout.
LMC7211AIMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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
- :
- 5mV @ 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
LMC7211AIMX/NOPB FAQ
1.How can I place an order for LMC7211AIMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211AIMX/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 LMC7211AIMX/NOPB reliable?
The price and inventory of LMC7211AIMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211AIMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC7211AIMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211AIMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211AIMX/NOPB?
LMC7211AIMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211AIMX/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 LMC7211AIMX/NOPB?
For technical support, including LMC7211AIMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211AIMX/NOPB requirements.
6.How does Aetrix verify that LMC7211AIMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC7211AIMX/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 LMC7211AIMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC7211AIMX/NOPB?
All LMC7211AIMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211AIMX/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 LMC7211AIMX/NOPB part is unused and in its original packaging.
Return procedure for LMC7211AIMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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