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Texas Instruments LMC7211AIM5X
- Part No.:
- LMC7211AIM5X
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7211AIM5X.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
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Product details
Overview
LMC7211AIM5X from Texas Instruments is a micropower CMOS rail-to-rail input comparator in SOT-23-5 package, delivering 420 ns propagation delay at 5V, 7 μA typical supply current, and ±0.3 V beyond-rail input common-mode range. It serves as a low-power voltage threshold detector in battery-powered sensor interfaces and portable electronics.
For engineers reviewing the LMC7211AIM5X datasheet, LMC7211AIM5X pinout, LMC7211AIM5X application, or LMC7211AIM5X equivalent, key selection criteria include its push-pull output capable of sourcing/sinking 30 mA/45 mA, 5 mV (NAI grade) or 15 mV (NBI grade) input offset voltage, and operation across 2.7–15 V supply with −40°C to +85°C junction temperature range.
Technical Context
The LMC7211AIM5X implements a CMOS input stage with rail-to-rail input capability extending 0.3 V beyond both supply rails, enabling direct sensing of signals near V− or V+. Its push-pull output eliminates external pull-up resistors and supports driving TTL/CMOS loads directly.
It operates over a wide supply range (2.7 V to 15 V) with stable AC performance: 420 ns tPLH and 450 ns tPHL at 2.7 V, and 420 ns tPLH at 5 V with 100 mV overdrive. Input bias current is 0.04 pA typical, supporting high-impedance sensor nodes without loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V - supports single-supply operation across battery-depleted to fully charged states in portable systems. |
| Input Offset Voltage (NAI) | 5 mV max - enables accurate threshold detection for low-amplitude sensor outputs without trimming. |
| Supply Current (typ) | 7 μA at 5 V - extends battery life in always-on monitoring circuits such as alarm sensors or wearables. |
| Propagation Delay (tPLH) | 420 ns at 5 V, 100 mV overdrive - sufficient for medium-speed digital interfacing (e.g., microcontroller wake-up triggers). |
| Input Common-Mode Range | V− −0.3 V to V+ +0.3 V - allows direct comparison of signals referenced to ground or V+ without level-shifting circuitry. |
| Output Type | Push-pull - drives logic inputs directly; no external pull-up required, reducing BOM count and board space. |
| ESD Tolerance | 2 kV HBM - meets basic handling robustness requirements for assembly in standard manufacturing environments. |
Pinout & Package
SOT-23-5 package: 3.05 mm × 3.00 mm × 1.43 mm footprint, surface-mount, RoHS-compliant, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | CMOS push-pull output capable of sourcing 30 mA / sinking 45 mA; compatible with TTL/CMOS logic thresholds. |
| 2 (−IN) | Inverting Input | High-impedance CMOS node (0.04 pA bias current); accepts signals from −0.3 V to V+ +0.3 V. |
| 3 (V−) | Negative Supply / Ground | Reference terminal for single-supply operation; supports true ground-referenced inputs. |
| 4 (+IN) | Non-inverting Input | High-impedance CMOS node; identical voltage range and bias current as −IN. |
| 5 (V+) | Positive Supply | Accepts 2.7–15 V; supplies internal bias and output stage; thermal resistance θJA = 203°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Extends 0.3 V beyond V− and V+ - eliminates need for input voltage dividers or op-amp buffers in power-monitoring or current-sense applications. |
| Push-pull output | Drives logic gates or LEDs directly without pull-up resistor - reduces component count and layout complexity in space-constrained PCBs. |
| 7 μA supply current (typ) | Enables multi-year operation on coin-cell batteries in low-duty-cycle sensor wake-up circuits. |
| 420 ns response at 5 V | Supports real-time event detection (e.g., overvoltage latch, zero-crossing trigger) in portable instrumentation. |
| 0.04 pA input bias current | Preserves signal integrity when interfacing with high-output-impedance sources like photodiodes or thermistors. |
Applications
| Battery Voltage Monitor | Light Sensor Interface |
|---|---|
Use Scenario: Detecting low-battery condition in handheld medical devices before shutdown. IC Role / Device Role / Timing Role: Threshold comparator comparing battery voltage against a precision reference. Use Value: Rail-to-rail input enables direct sensing down to 0.3 V below ground, allowing accurate detection even at end-of-life battery voltages. |
Use Scenario: Converting ambient light intensity from a photodiode into digital ON/OFF signal for smart lighting control. IC Role / Device Role / Timing Role: Analog-to-digital front-end comparator with hysteresis for noise immunity. Use Value: 0.04 pA input bias current prevents loading of high-impedance photodiode output, preserving sensitivity and dynamic range. |
| PCMCIA Card Status Detection | Portable Equipment Power-On Reset |
Use Scenario: Sensing card insertion/removal in legacy PCMCIA peripherals using mechanical switch voltage drop. IC Role / Device Role / Timing Role: Level translator and edge detector for host controller interrupt generation. Use Value: 1.43 mm height fits within PCMCIA Type III envelope constraints while maintaining full electrical functionality. |
Use Scenario: Generating clean reset pulse when main supply crosses valid operating threshold in notebooks. IC Role / Device Role / Timing Role: Precision supply supervisor with adjustable threshold via external resistor divider. Use Value: 5 mV (NAI grade) input offset ensures consistent trip point across temperature, minimizing false resets during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7221AIM5X | Same SOT-23-5 package but open-drain output; requires external pull-up; slightly higher supply current (9 μA typ). | Used where mixed-voltage I/O (e.g., 3.3 V comparator driving 5 V logic) is required. | Select LMC7221AIM5X only if level translation or wired-OR bus functionality is needed; otherwise LMC7211AIM5X offers lower BOM cost and simpler layout. |
| TLV3701IDBVR | Lower input offset (1.5 mV max), faster response (320 ns), but higher supply current (17 μA typ) and narrower supply range (2.7–16 V). | Better suited for precision timing or fast analog-to-digital conversion where speed and accuracy outweigh power budget. | Choose TLV3701IDBVR when sub-microsecond timing resolution and <2 mV offset are mandatory; LMC7211AIM5X remains optimal for ultra-low-power, cost-sensitive designs. |
Compared with LMC7221AIM5X and TLV3701IDBVR, the LMC7211AIM5X uniquely balances micropower operation (7 μA), rail-to-rail input, and push-pull output in the smallest possible footprint-making it the preferred choice for space- and energy-constrained portable systems where simplicity and reliability are prioritized over extreme speed or precision.
Availability
LMC7211AIM5X is available at Aetrix Electronics and suitable for battery-powered products, portable medical devices, and PCMCIA card interfaces requiring stable component supply across long production lifecycles.
Supply support for LMC7211AIM5X 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and low-power design.
The LMC7211AIM5X belongs to TI's LMC72xx family of micropower comparators, engineered specifically for space-constrained, battery-operated applications demanding rail-to-rail input, ultra-low quiescent current, and robust single-supply operation.
FAQ
What is the maximum supply voltage rating for the LMC7211AIM5X?
The LMC7211AIM5X has an absolute maximum supply voltage (V+ − V−) of 16 V. Continuous operation is specified up to 15 V across the full temperature range. Exceeding 16 V risks permanent damage per the Absolute Maximum Ratings table in the official datasheet.
Does the LMC7211AIM5X support true rail-to-rail input operation?
Yes, the LMC7211AIM5X supports input voltages from V− −0.3 V to V+ +0.3 V - confirmed in Section 4.3 and 4.4 of the datasheet. This allows direct sensing of signals at or slightly beyond the supply rails, eliminating level-shifting components in applications like power supply monitoring.
What is the output configuration of the LMC7211AIM5X and how does it differ from open-drain comparators?
The LMC7211AIM5X features a push-pull output that actively drives both HIGH and LOW states without external components. Unlike open-drain comparators (e.g., LMC7221AIM5X), it does not require a pull-up resistor, simplifying design and reducing power loss in static HIGH states - a key advantage in low-power portable systems.
Can the LMC7211AIM5X operate from a 2.7 V single supply?
Yes, the LMC7211AIM5X is fully characterized and functional at 2.7 V single supply, with guaranteed performance including 450 ns tPHL, 420 ns tPLH (at 100 mV overdrive), and 14 μA max supply current. This makes it ideal for Li-ion or alkaline battery-powered devices operating down to end-of-discharge voltage.
What is the input offset voltage specification for the LMC7211AIM5X and how is it graded?
The LMC7211AIM5X is offered in two offset grades: NAI (5 mV max) and NBI (15 mV max), both tested and binned per the Electrical Characteristics tables. The LMC7211AIM5X corresponds to the NAI grade, ensuring tighter threshold accuracy critical for precision sensing applications.
LMC7211AIM5X 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
- :
- 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
- :
- SOT-23-5
LMC7211AIM5X FAQ
1.How can I place an order for LMC7211AIM5X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211AIM5X 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 LMC7211AIM5X reliable?
The price and inventory of LMC7211AIM5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211AIM5X is usually 5 days.
3.What payment methods are accepted for LMC7211AIM5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211AIM5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211AIM5X?
LMC7211AIM5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211AIM5X 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 LMC7211AIM5X?
For technical support, including LMC7211AIM5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211AIM5X requirements.
6.How does Aetrix verify that LMC7211AIM5X is sourced from the original manufacturer or authorized distributors?
All LMC7211AIM5X 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 LMC7211AIM5X meets industry standards.
7.What is the process for return or replacement of LMC7211AIM5X?
All LMC7211AIM5X units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211AIM5X, 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 LMC7211AIM5X part is unused and in its original packaging.
Return procedure for LMC7211AIM5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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