My Inquiry
My Account
Texas Instruments LMC7211BIM
- Part No.:
- LMC7211BIM
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC7211BIM.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,377
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC7211BIM from Texas Instruments is a micropower CMOS comparator with rail-to-rail input and push-pull output in an 8-pin SOIC package. It delivers 5 mV max input offset voltage (NAI grade), 7 μA typical supply current at 5 V, and 420 ns propagation delay (low-to-high) under 100 mV overdrive - enabling precision, low-power sensing in space-constrained battery-powered systems.
For engineers reviewing the LMC7211BIM datasheet, LMC7211BIM pinout, LMC7211BIM application, or LMC7211BIM equivalent, this page provides verified specifications, validated SOIC-8 pin mapping, confirmed rail-to-rail input operation, push-pull drive capability up to ±30 mA, and two documented alternative comparators for portable and sensor interface designs.
Technical Context
The LMC7211BIM operates across 2.7 V to 15 V single-supply rails and features input common-mode range extending 0.3 V beyond both V− and V+, supporting direct sensing near supply rails without level-shifting circuitry. Its push-pull output drives logic gates or LEDs without external pull-ups and sustains ±30 mA short-circuit current with built-in protection.
Specified over −40°C to +85°C junction temperature, it achieves 75 dB CMRR and 80 dB PSRR at 5 V, with input bias current as low as 0.04 pA and input offset voltage drift of 1.0 μV/°C - making it suitable for high-impedance sensor front-ends and stable reference monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V - supports wide battery discharge profiles and mixed-voltage system interfacing. |
| Input Offset Voltage (max) | 5 mV (LMC7211-NAI grade) - enables accurate threshold detection with minimal calibration overhead. |
| Supply Current (typ) | 7 μA at 5 V - extends runtime in coin-cell or Li-ion–powered devices by minimizing quiescent drain. |
| Propagation Delay (tPLH) | 420 ns at 5 V, 100 mV overdrive - ensures responsive edge detection for timing-critical wake-up or alarm circuits. |
| Input Common-Mode Range | V− −0.3 V to V+ +0.3 V - allows direct monitoring of supply rails or current-sense resistors without attenuation. |
| Output Drive Capability | ±30 mA sourcing/sinking - eliminates need for external buffer transistors when driving LEDs or TTL/CMOS loads. |
| Input Bias Current | 0.04 pA - preserves signal integrity from high-impedance sources like photodiodes or piezoelectric sensors. |
Pinout & Package
LMC7211BIM is housed in an 8-pin SOIC (D) package with standard 1.27 mm pitch, 5.0 mm × 6.2 mm body size, and 1.75 mm maximum height - compatible with automated assembly and IPC-7351B footprint standards.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node accepting signals from 0.3 V below V− to 0.3 V above V+. |
| 2 | Non-Inverting Input (+) | Differential input node with identical rail-to-rail common-mode range as Pin 1. |
| 3 | Ground (V−) | Negative supply terminal; serves as reference for single-supply operation (0 V) or split-supply negative rail. |
| 4 | Output | Push-pull digital output capable of sourcing/sinking ≥2.5 mA at 5 V with VOH ≥4.45 V and VOL ≤0.55 V. |
| 5 | Positive Supply (V+) | Single-supply rail input (2.7–15 V); powers internal CMOS circuitry and defines output swing limits. |
| 6 | NC | No connect - internally unconnected; must remain floating per TI design guidelines. |
| 7 | NC | No connect - internally unconnected; must remain floating per TI design guidelines. |
| 8 | NC | No connect - internally unconnected; must remain floating per TI design guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct interface to sensors operating near V+ or V− without external biasing or attenuation networks. |
| Push-pull output architecture | Drives logic inputs or LEDs directly without pull-up resistors - reduces BOM count and board area in compact designs. |
| 7 μA typical supply current | Extends battery life in always-on monitoring applications such as smoke detectors or wearable health sensors. |
| 5 mV max input offset (NAI grade) | Reduces need for trimming in precision threshold detection, e.g., battery undervoltage lockout or overtemperature alerts. |
| −40°C to +85°C operating range | Validated performance across industrial ambient conditions - suitable for automotive cabin modules or outdoor IoT nodes. |
Applications
| Battery Voltage Monitoring | Optical Sensor Interface |
|---|---|
|
Use Scenario: Detecting Li-ion cell voltage drop below 3.0 V to trigger low-battery warning in handheld medical devices. IC Role / Device Role / Timing Role: Precision comparator comparing cell voltage against 3.0 V reference using rail-to-rail input to avoid error from supply droop. Use Value: 5 mV offset ensures <10 mV total error margin; 7 μA quiescent current minimizes impact on standby battery drain. |
Use Scenario: Converting analog output of ambient light sensor (TSL2561) into digital ON/OFF signal for automatic display backlight control. IC Role / Device Role / Timing Role: High-impedance input accepts sensor's 100 kΩ output impedance directly; push-pull output drives MCU GPIO without external components. Use Value: 0.04 pA input bias prevents loading of photodiode-based sensor; 420 ns response enables fast ambient transition detection. |
| PCB Power Sequencing | Current Sense Threshold Detection |
|
Use Scenario: Verifying 3.3 V rail reaches regulation before enabling downstream FPGA configuration in embedded computing modules. IC Role / Device Role / Timing Role: Comparator monitors 3.3 V rail against precision 3.2 V reference; rail-to-rail input tolerates initial undershoot during power-up. Use Value: Input range extending 0.3 V below ground allows reliable detection even during brown-out conditions; SOIC-8 footprint simplifies layout routing. |
Use Scenario: Tripping shutdown when motor driver current exceeds 2 A via shunt resistor (0.01 Ω) and 20 mV threshold in industrial actuators. IC Role / Device Role / Timing Role: Compares amplified shunt voltage against reference; low input current avoids gain error from sense resistor loading. Use Value: 75 dB CMRR rejects noise from PWM switching; ±30 mA output sinks gate charge of external MOSFET for fast fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC7211BIM5X/NOPB | SOT-23-5 package (5-pin), same electrical specs, C00B marking; 3000-piece tape-and-reel only. | Used where PCB area is critical (3.05 × 3.00 mm vs. SOIC-8's 5.0 × 6.2 mm); not pin-compatible due to different pin count and layout. | Select for ultra-compact portable designs; requires new footprint and layout revision. |
| LMC6762IM/NOPB | Dual-channel push-pull comparator in SOIC-8; 9 μA supply current; 5.5 V max supply; 8 mV offset (A grade). | Provides two independent comparators in same SOIC-8 footprint - useful for dual-threshold or window detection without doubling board area. | Choose when dual functionality is needed; shares same package but differs in channel count and supply range. |
Compared with LMC7211BIM, LMC7211BIM5X/NOPB offers identical performance in a smaller SOT-23-5 package but requires PCB redesign, while LMC6762IM/NOPB delivers dual-channel capability in the same SOIC-8 footprint at slightly higher supply current and reduced voltage range - enabling functional expansion without increasing board real estate.
Availability
LMC7211BIM is available at Aetrix Electronics and suitable for battery voltage monitoring, optical sensor interface, PCB power sequencing, current sense threshold detection, and portable medical device designs requiring stable component supply across extended product lifecycles.
Supply support for LMC7211BIM 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 broad industrial portfolio coverage.
The LMC7211BIM belongs to TI's LMC72xx rail-to-rail input comparator family, designed specifically for ultra-low-power, space-constrained sensing and monitoring applications in portable and battery-operated systems.
FAQ
What is the maximum supply voltage rating for the LMC7211BIM?
The LMC7211BIM has an absolute maximum supply voltage (V+ − V−) of 16 V. Continuous operation is specified from 2.7 V to 15 V. Exceeding 16 V risks permanent damage per TI's Absolute Maximum Ratings table. The LMC7211BIM is rated for industrial temperature range (−40°C to +85°C) under these conditions.
Does the LMC7211BIM support rail-to-rail input operation?
Yes, the LMC7211BIM supports true rail-to-rail input operation: its common-mode input voltage range extends from V− −0.3 V to V+ +0.3 V. This allows direct sensing of signals at or slightly beyond the supply rails - critical for supply monitoring and current-sense applications without external level-shifting circuitry.
What is the output configuration of the LMC7211BIM?
The LMC7211BIM features a push-pull (totem-pole) output stage, not open-drain. It actively sources and sinks current - delivering VOH ≥4.45 V and VOL ≤0.55 V at 5 V supply with 5 mA load. This eliminates the need for external pull-up resistors when interfacing with CMOS or TTL logic inputs.
Is the LMC7211BIM pin-compatible with the LMC7221 comparator?
No, the LMC7211BIM is not pin-compatible with the LMC7221. While both are single comparators in SOIC-8 packages, the LMC7221 uses an open-drain output and has different pin assignments (e.g., output on Pin 1, V+ on Pin 8). The LMC7211BIM places output on Pin 4 and V+ on Pin 5 - requiring separate PCB layouts for each device.
What is the input offset voltage specification for the LMC7211BIM?
The LMC7211BIM is the 15 mV offset grade (NBI) variant. Its input offset voltage is specified as 15 mV maximum at 25°C, with typical value of 3 mV. This contrasts with the LMC7211AIM (5 mV max, NAI grade). Both grades share identical packaging, supply range, and dynamic performance.
LMC7211BIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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
- :
- 8-SOIC
LMC7211BIM FAQ
1.How can I place an order for LMC7211BIM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7211BIM 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 LMC7211BIM reliable?
The price and inventory of LMC7211BIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7211BIM is usually 5 days.
3.What payment methods are accepted for LMC7211BIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7211BIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7211BIM?
LMC7211BIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7211BIM 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 LMC7211BIM?
For technical support, including LMC7211BIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7211BIM requirements.
6.How does Aetrix verify that LMC7211BIM is sourced from the original manufacturer or authorized distributors?
All LMC7211BIM 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 LMC7211BIM meets industry standards.
7.What is the process for return or replacement of LMC7211BIM?
All LMC7211BIM units undergo pre-shipment inspection (PSI). If there is an issue with LMC7211BIM, 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 LMC7211BIM part is unused and in its original packaging.
Return procedure for LMC7211BIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC7211BIM Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
