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Texas Instruments LMC7211BIMX/NOPB
- Part No.:
- LMC7211BIMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC7211BIMX/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,464
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Product details
Overview
LMC7211BIMX/NOPB from Texas Instruments is a micropower CMOS comparator in SOIC-8 package, featuring rail-to-rail input voltage range, push-pull output, 7 μA typical supply current at 5 V, 420 ns propagation delay (low-to-high), and ±0.3 V input common-mode extension beyond rails. It serves as a precision threshold detector in battery-powered sensor interfaces and low-voltage power monitoring circuits.
For engineers reviewing the LMC7211BIMX/NOPB datasheet, LMC7211BIMX/NOPB pinout, LMC7211BIMX/NOPB application, or LMC7211BIMX/NOPB equivalent, key selection criteria include its 2.7–15 V supply range, 5 mV max input offset voltage (B-grade), rail-to-rail input operation, push-pull output drive capability, and SOIC-8 thermal resistance of 136 °C/W - all critical for space-constrained, low-power analog-digital boundary designs.
Technical Context
The LMC7211BIMX/NOPB implements a CMOS input stage with p-channel and n-channel differential pairs enabling rail-to-rail input common-mode range extending 0.3 V beyond V− and V+. Its push-pull output stage delivers both sourcing and sinking current (up to 30 mA sourcing / 45 mA sinking) without external pull-up resistors.
It operates across 2.7 V to 15 V single-supply conditions with specified performance at 2.7 V, 5 V, and 15 V. The B-grade variant has 5 mV maximum input offset voltage at 25 °C and 8 mV over −40 °C to +85 °C, supporting stable threshold detection in portable and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V - supports direct operation from single Li-ion, 3.3 V logic, and 12 V industrial rails without level-shifting. |
| Input Offset Voltage (B-grade) | 5 mV max at 25 °C - enables accurate low-level signal discrimination in sensor comparators and reference monitoring. |
| Supply Current | 7 μA typical at 5 V - extends battery life in always-on detection circuits; increases to 14 μA max over temperature. |
| Propagation Delay | 420 ns (tPLH) at 5 V, 100 mV overdrive - sufficient for medium-speed window comparators and power-good signaling. |
| Input Common-Mode Range | V− − 0.3 V to V+ + 0.3 V - allows direct sensing of signals near supply rails, e.g., battery voltage monitoring without divider networks. |
| Output Type | Push-pull - drives TTL/CMOS loads directly; eliminates need for external pull-up and reduces board area vs. open-drain alternatives. |
| Package | SOIC-8 (D) - industry-standard 150 mil body, 1.75 mm height, 136 °C/W θJA - compatible with automated assembly and legacy footprints. |
Pinout & Package
LMC7211BIMX/NOPB is housed in an 8-pin SOIC (D) package with standard pinout: Pin 1 = Output, Pin 2 = Inverting Input (−), Pin 3 = Non-inverting Input (+), Pin 4 = V− (GND), Pin 5 = NC, Pin 6 = NC, Pin 7 = V+, Pin 8 = NC. Pins 5, 6, and 8 are no-connects per TI datasheet SNOS746G.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Output | Push-pull digital output capable of sourcing 30 mA / sinking 45 mA - directly drives logic inputs or LEDs without external components. |
| Pin 2 | Inverting Input (−) | Differential input node with <0.04 pA bias current - preserves accuracy when interfacing high-impedance sensors or RC timing networks. |
| Pin 3 | Non-inverting Input (+) | Differential input node with rail-to-rail common-mode range - accepts signals from 0.3 V below GND to 0.3 V above V+. |
| Pin 4 | V− | Ground reference terminal - must be connected to system ground; supports single-supply operation with V+ as positive rail. |
| Pin 7 | V+ | Positive supply terminal - accepts 2.7–15 V; internal regulation not required; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with beyond-rail margin | Accepts inputs from V− − 0.3 V to V+ + 0.3 V - enables direct battery voltage monitoring and zero-crossing detection without level shifters. |
| Push-pull output stage | Drives logic gates or LEDs directly - eliminates external pull-up resistors, reduces component count, and improves rise/fall time consistency. |
| Ultra-low quiescent current | 7 μA typical at 5 V - supports multi-year operation on coin cells in IoT endpoint sensors and wearable health monitors. |
| Specified performance at 2.7 V, 5 V, 15 V | Guaranteed AC/DC specs across three key supply points - simplifies design reuse across product families with varying power architectures. |
| B-grade offset voltage (5 mV max) | Tighter initial accuracy than A-grade (15 mV) - reduces calibration overhead in precision threshold applications like smoke detector alarms. |
Applications
| Battery Voltage Monitor | Optical Sensor Threshold Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during discharge to trigger low-battery warning before cutoff. IC Role / Device Role / Timing Role: Precision comparator comparing cell voltage against 3.0 V reference; outputs logic-low when voltage drops below threshold. Use Value: Rail-to-rail input allows direct connection to cell anode/cathode; 5 mV offset ensures consistent trip point across temperature; 7 μA current minimizes load on aging battery. |
Use Scenario: Converting ambient light intensity from photodiode into digital ON/OFF signal for automatic lighting control. IC Role / Device Role / Timing Role: High-impedance comparator amplifying small photocurrents; compares photodiode output against adjustable reference voltage. Use Value: 0.04 pA input bias current prevents signal loss in high-Z photodiode circuits; rail-to-rail input accommodates low-light output near GND or V+. |
| Power Supply Sequencing Controller | PCMCIA Card Status Indicator |
|
Use Scenario: Validating correct startup order of multiple DC rails (e.g., 12 V → 5 V → 3.3 V) in embedded systems. IC Role / Device Role / Timing Role: One-shot comparator detecting each rail's rise above its threshold; output enables next stage only after stable voltage is confirmed. Use Value: Wide 2.7–15 V supply range allows same device to monitor all rails; push-pull output directly drives enable pins of downstream regulators without buffering. |
Use Scenario: Detecting insertion/removal of PCMCIA cards by sensing card detect (CD1/CD2) pin transitions. IC Role / Device Role / Timing Role: Fast-response comparator converting analog card-detect voltage into clean digital interrupt signal for host controller. Use Value: 420 ns propagation delay ensures timely card presence detection; SOIC-8 footprint fits tight PCMCIA Type III board real estate; 136 °C/W θJA supports convection-cooled operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7211AIMX/NOPB | A-grade offset voltage (15 mV max); otherwise identical electrical specs and SOIC-8 packaging. | Suitable where cost sensitivity outweighs precision requirements, e.g., non-critical power-good flags. | Select LMC7211AIMX/NOPB if 15 mV offset is acceptable and lower unit cost is prioritized. |
| LMC7221BIMX/NOPB | Same B-grade offset and SOIC-8 package, but open-drain output instead of push-pull. | Required when output must interface with higher-voltage logic (e.g., 5 V MCU while powered from 3.3 V). | Choose LMC7221BIMX/NOPB only when mixed-voltage level translation is needed; otherwise LMC7211BIMX/NOPB offers simpler layout and faster edges. |
Compared with LMC7211AIMX/NOPB, the LMC7211BIMX/NOPB provides tighter offset accuracy for precision thresholding, while LMC7221BIMX/NOPB trades push-pull drive for voltage-level flexibility - making LMC7211BIMX/NOPB optimal for single-rail, low-power, accuracy-critical detection tasks.
Availability
LMC7211BIMX/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial power monitoring systems requiring stable component supply across long production lifecycles.
Supply support for LMC7211BIMX/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 LMC7211BIMX/NOPB belongs to TI's LMC72xx rail-to-rail micropower comparator family, engineered for ultra-low-current, high-accuracy threshold detection in space- and energy-constrained portable and industrial systems.
FAQ
What is the input offset voltage specification for LMC7211BIMX/NOPB?
The LMC7211BIMX/NOPB is the B-grade variant with a maximum input offset voltage of 5 mV at 25 °C and 8 mV over the full −40 °C to +85 °C operating temperature range. This tighter tolerance supports precision applications such as battery end-of-discharge detection and calibrated sensor thresholds where drift must remain minimal.
Does LMC7211BIMX/NOPB support single-supply operation?
Yes, LMC7211BIMX/NOPB is fully specified for single-supply operation from 2.7 V to 15 V. Its rail-to-rail input stage accepts common-mode voltages from V− − 0.3 V to V+ + 0.3 V, and its push-pull output swings close to both rails - enabling direct use with microcontrollers, ADC references, and battery-sensed signals without dual supplies.
What is the thermal resistance (θJA) of LMC7211BIMX/NOPB in SOIC-8 package?
The LMC7211BIMX/NOPB in SOIC-8 (D) package has a junction-to-ambient thermal resistance (θJA) of 136 °C/W when mounted on a standard JEDEC 2-layer board. This value assumes standard copper pour and is critical for calculating maximum allowable power dissipation in thermally constrained enclosures or high-ambient-temperature deployments.
Can LMC7211BIMX/NOPB drive an LED directly?
Yes, LMC7211BIMX/NOPB can directly sink up to 45 mA or source up to 30 mA, making it capable of driving small indicator LEDs without external transistors. At 5 V supply, its VOL is ≤0.4 V at 5 mA load - sufficient for red/green LEDs with series resistors; however, continuous LED drive should consider thermal limits and derate output current per TI's reliability guidelines.
How does LMC7211BIMX/NOPB differ from LMC7221BIMX/NOPB?
The LMC7211BIMX/NOPB features a push-pull output, while LMC7221BIMX/NOPB uses an open-drain output. Both share identical B-grade offset, SOIC-8 packaging, and rail-to-rail input. The push-pull configuration of LMC7211BIMX/NOPB simplifies interface to same-supply logic and improves edge speed; LMC7221BIMX/NOPB enables level shifting across different voltage domains.
LMC7211BIMX/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
- :
- 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/NOPB FAQ
1.How can I place an order for LMC7211BIMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211BIMX/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 LMC7211BIMX/NOPB reliable?
The price and inventory of LMC7211BIMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211BIMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC7211BIMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211BIMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211BIMX/NOPB?
LMC7211BIMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211BIMX/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 LMC7211BIMX/NOPB?
For technical support, including LMC7211BIMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211BIMX/NOPB requirements.
6.How does Aetrix verify that LMC7211BIMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC7211BIMX/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 LMC7211BIMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC7211BIMX/NOPB?
All LMC7211BIMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211BIMX/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 LMC7211BIMX/NOPB part is unused and in its original packaging.
Return procedure for LMC7211BIMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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