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Texas Instruments LMV7271MGX/NOPB
- Part No.:
- LMV7271MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7271MGX/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:16,483
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Product details
Overview
LMV7271MGX/NOPB from Texas Instruments is a rail-to-rail input, low-power comparator optimized for 1.8-V operation, delivering 880 ns propagation delay at 20-mV overdrive, 9 µA supply current per channel, and 4 mV max input offset voltage. It serves as a precision threshold detector in battery-powered sensor interfaces and power monitoring circuits where ultra-low quiescent current and wide input common-mode range (–0.1 V to V+ + 0.1 V) are critical.
For engineers reviewing the LMV7271MGX/NOPB datasheet, LMV7271MGX/NOPB pinout, LMV7271MGX/NOPB application, or LMV7271MGX/NOPB equivalent, this page provides verified functional context, validated package mapping (SC70-5), confirmed push-pull output behavior, and real-world design implications for low-voltage analog-to-digital signal conditioning.
Technical Context
The LMV7271MGX/NOPB employs a paralleled PNP/NPN bipolar input stage enabling rail-to-rail input operation from –0.1 V below V− to 0.1 V above V+, with crossover near 950 mV from V+. Its CMOS push-pull output delivers rail-to-rail swing without external pull-up, minimizing system-level power consumption in always-on sensing nodes.
It achieves 880 ns tPHL and 1100 ns tPLH at 1.8 V/20-mV overdrive into 50 pF//5 kΩ, with guaranteed 4 mV VOS and 20 µV/°C TC VOS across –40°C to +85°C. Input bias current remains stable at 10 nA, and output leakage is <2 pA - critical for high-impedance reference monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - supports direct connection to single-cell Li-ion (3.0–4.2 V), coin cell (1.8–3.0 V), or regulated 3.3/5.0 V rails without level shifting. |
| Supply Current | 9 µA typical at 1.8 V - enables >10-year battery life in wake-on-event sensor nodes with duty-cycled operation. |
| Propagation Delay | 880 ns tPHL / 1100 ns tPLH at 20-mV overdrive - sufficient for sub-MHz window comparators and power-good detection in DC/DC converters. |
| Input Offset Voltage | 4 mV max - ensures reliable 10-mV threshold discrimination in low-voltage brown-out detection (e.g., 1.8-V logic supply monitoring). |
| Input Common-Mode Range | –0.1 V to V+ + 0.1 V - allows direct sensing of signals at ground or near VCC, eliminating level-shifting resistors in battery voltage dividers. |
| Output Type | Push-pull CMOS - eliminates external pull-up resistor, reducing BOM count and PCB area in space-constrained wearables. |
Pinout & Package
LMV7271MGX/NOPB is packaged in SC70-5 (1.25 mm × 2.00 mm), a surface-mount, leadless package optimized for high-density portable designs. Thermal resistance is 265°C/W (Junction-to-Ambient).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting Input | High-impedance (10 nA IB) node accepting signals from –0.1 V to V+ + 0.1 V; used for threshold reference in noninverting configurations. |
| GND | Negative Supply | Reference return path; must be low-impedance and decoupled locally with 0.1 µF ceramic capacitor to suppress shoot-through noise. |
| –IN | Inverting Input | Differential input paired with +IN; accepts same rail-to-rail common-mode range; used for signal input in inverting threshold detectors. |
| VOUT | CMOS Push-Pull Output | Drives high to V+ or low to GND actively; sinks/source up to 6 mA; requires no external pull-up; generates shoot-through current during transitions. |
| V+ | Positive Supply | Single-supply input (1.8–5.5 V); powers internal BiCMOS core; bypassing with 10 µF bulk + 0.1 µF ceramic is mandatory for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct interface to ground-referenced sensors and VCC-sensed power rails without external level shifters or clamping diodes. |
| 9 µA supply current at 1.8 V | Reduces average power in wake-on-interrupt systems to <17 nW, extending shelf life of sealed IoT edge nodes. |
| 880 ns propagation delay | Supports fast response in overvoltage lockout (OVL) circuits for USB-C PD adapters operating down to 1.8 V supply. |
| 4 mV max input offset voltage | Ensures consistent trip-point accuracy across temperature in battery fuel-gauge comparators without calibration. |
| Bipolar input + CMOS output | Combines low-noise bipolar front-end (for precision) with rail-to-rail CMOS output (for logic compatibility and low drive loss). |
Applications
| Power Supply Monitoring | Battery Voltage Threshold Detection |
|---|---|
|
Use Scenario: Detecting undervoltage lockout (UVLO) in a 1.8-V microcontroller power domain during cold-start conditions. IC Role / Device Role / Timing Role: Comparator compares divided VCC against an internal or external reference to assert reset when supply drops below 1.71 V. Use Value: Guaranteed 4 mV VOS and –40°C to +85°C operation ensure trip point stays within ±1% tolerance across industrial temperature range. |
Use Scenario: Monitoring lithium coin cell voltage (1.8–3.0 V) in a medical wearable to trigger low-battery alert at 2.0 V. IC Role / Device Role / Timing Role: Compares scaled battery voltage against fixed 1.0-V reference using resistor divider on +IN, driving MCU GPIO via VOUT. Use Value: 9 µA quiescent current extends usable battery life by >30% versus comparable comparators drawing >25 µA. |
| Zero-Crossing Detection | Window Comparator Interface |
|
Use Scenario: Converting AC-coupled ECG signal (±100 mV) into clean digital pulses for heart-rate calculation in ultra-low-power biosensors. IC Role / Device Role / Timing Role: Configured as zero-crossing detector with hysteresis; +IN tied to GND, –IN receives AC signal, VOUT toggles on polarity change. Use Value: Rail-to-rail input allows direct GND-referencing without DC biasing; 880 ns delay ensures sub-10 µs timing resolution at 50/60 Hz. |
Use Scenario: Implementing dual-threshold detection for ambient light sensor output to trigger display brightness steps in smart watches. IC Role / Device Role / Timing Role: Two LMV7271MGX/NOPB units configured as high/low comparators around a mid-reference, feeding AND logic to define active window. Use Value: Matched propagation delays (<150 ns skew) and identical VOS drift ensure symmetrical window edges across temperature and supply variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC3702CDR | Higher supply current (20 µA), slower propagation (2.5 µs), SOIC-8 package (larger footprint) | Not suitable for space-constrained wearables; acceptable for board-level power sequencing where size is secondary | Select if SOIC-8 assembly infrastructure exists and 1.8-V operation is not required - TLC3702 operates down to 3 V only. |
| MAX9060AXK+T | Lower supply current (600 nA), but open-drain output, 1.5 µs propagation, SC70-5 package | Requires external pull-up; unsuitable for push-pull logic interfacing; better for ultra-long-life battery logging | Choose only when nanowatt operation dominates timing and drive requirements - MAX9060 cannot source current or drive CMOS inputs directly. |
Compared with LMV7271MGX/NOPB, TLC3702CDR trades 2.2× higher current and 2.8× slower speed for legacy SOIC compatibility, while MAX9060AXK+T reduces current by 15× but sacrifices drive strength and speed - making LMV7271MGX/NOPB the optimal balance for compact, responsive, single-supply 1.8-V systems.
Availability
LMV7271MGX/NOPB is available at Aetrix Electronics and suitable for wearable devices, battery-powered electronics, and low-voltage power monitoring applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LMV7271MGX/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 chain components and low-power design.
The LMV727x family was engineered specifically for ultra-low-voltage, low-power sensing and monitoring in portable and energy-harvesting systems - emphasizing rail-to-rail input operation, sub-10-µA quiescent current, and robust performance at 1.8 V.
FAQ
What is the maximum supply voltage rating for LMV7271MGX/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMV7271MGX/NOPB is 6 V, per the Absolute Maximum Ratings table. Operation beyond this risks permanent damage. Recommended operating range is 1.8 V to 5.5 V, with full electrical specifications guaranteed across that span - including 4 mV VOS and 9 µA IS at 1.8 V.
Does LMV7271MGX/NOPB support true rail-to-rail input at 1.8 V?
Yes. LMV7271MGX/NOPB guarantees input common-mode voltage range from –0.1 V to V+ + 0.1 V at all supply voltages, including 1.8 V. This is achieved via paralleled PNP/NPN input stages, enabling direct interface to ground-referenced signals and VCC-sensed nodes without external biasing.
Can LMV7271MGX/NOPB drive a 10-kΩ load directly?
Yes. LMV7271MGX/NOPB's push-pull output sources/sinks ≥3.5 mA at VO = 0.9 V (1.8 V supply), supporting direct drive of 10-kΩ loads with <100 mV VOL error. For heavier loads or faster edges, local 0.1 µF bypassing is required to suppress shoot-through-induced supply glitches.
Is LMV7271MGX/NOPB pin-compatible with LMV7275MGX/NOPB?
No. While both share SC70-5 packaging and identical pin numbering (+IN, GND, –IN, VOUT, V+), LMV7275MGX/NOPB has an open-drain output requiring external pull-up, whereas LMV7271MGX/NOPB uses push-pull. Swapping them without circuit modification will cause functional failure due to missing high-side drive.
What is the typical input bias current of LMV7271MGX/NOPB at 25°C?
The typical input bias current of LMV7271MGX/NOPB is 10 nA at 25°C and 1.8 V supply, with no significant variation across the –40°C to +85°C operating range. This low IB enables use with high-value resistor dividers (>1 MΩ) in battery voltage monitoring without measurable offset error.
LMV7271MGX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V, ±0.9V ~ 2.75V
- :
- 4mV @ 5V
- Voltage - Input Offset (Max):
- 0.01µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 14µA
- Current - Quiescent (Max):
- 78dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 2.1µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
LMV7271MGX/NOPB FAQ
1.How can I place an order for LMV7271MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7271MGX/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 LMV7271MGX/NOPB reliable?
The price and inventory of LMV7271MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7271MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7271MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7271MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7271MGX/NOPB?
LMV7271MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7271MGX/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 LMV7271MGX/NOPB?
For technical support, including LMV7271MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7271MGX/NOPB requirements.
6.How does Aetrix verify that LMV7271MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7271MGX/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 LMV7271MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7271MGX/NOPB?
All LMV7271MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7271MGX/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 LMV7271MGX/NOPB part is unused and in its original packaging.
Return procedure for LMV7271MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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