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Texas Instruments LMV7275MF
- Part No.:
- LMV7275MF
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV7275MF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,656
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Product details
Overview
LMV7275MF from Texas Instruments is a single-channel, rail-to-rail input, low-power comparator with open-drain output, specified for 1.8 V to 5.5 V supply operation. It delivers 9 µA supply current per channel, 4 mV max input offset voltage, and 880 ns propagation delay (20-mV overdrive at 1.8 V), enabling precision threshold detection in ultra-low-power battery-powered systems.
For engineers reviewing the LMV7275MF datasheet, LMV7275MF pinout, LMV7275MF application, or LMV7275MF equivalent, this page provides verified functional context, package-validated pin definitions, real-world use cases in level-shifting and wired-OR interfaces, and two confirmed alternative comparators with documented differences in output architecture and supply current.
Technical Context
The LMV7275MF implements a bipolar-input BiCMOS front-end for low noise and rail-to-rail input common-mode range (–0.1 V to V+ + 0.1 V), paired with an open-drain NMOS output stage. Its input stage uses paralleled PNP/NPN differential pairs with crossover near 950 mV below V+, requiring design attention to VOS variation across VCM.
Unlike the push-pull outputs of LMV7271/LMV7272, the LMV7275MF's open-drain output enables wired-OR bus configurations and level-shifting-output can be pulled up to any voltage ≤ 5.5 V independent of its own V+ supply, with only 2 pA leakage at VO = 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct integration into Li-ion, coin-cell, and multi-rail embedded systems without level translation. |
| Supply Current (TYP) | 9 µA at 1.8 V - enables >1-year battery life in always-on wake-up circuits with sub-10 µA quiescent budgets. |
| Input Offset Voltage (MAX) | 4 mV - ensures reliable 10-mV overdrive margin in 3.3 V or lower reference monitoring applications. |
| Propagation Delay (TYP) | 880 ns at 20-mV overdrive, 1.8 V - sufficient for <1 kHz window-comparator sampling or power-good assertion timing. |
| Input Common-Mode Range | –0.1 V to V+ + 0.1 V - allows direct sensing of signals at ground or near-VCC, critical for battery voltage and rail monitor circuits. |
| Output Leakage (MAX) | 2 pA at VO = 5 V - preserves high-impedance pull-up integrity in low-current bias networks and precision reference dividers. |
Pinout & Package
SOT-23-5 (DBV) package: 1.60 mm × 2.90 mm body, 0.95 mm height, gull-wing leads, JEDEC MO-178AC compliant. RoHS-compliant, Pb-free matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting Input | Differential input node accepting signals from –0.1 V to V+ + 0.1 V; bipolar input stage enables low-noise DC-coupled sensing. |
| GND | Negative Supply Terminal | Reference return for both input and output stages; must be low-impedance connection to minimize ground bounce in shared PCB planes. |
| –IN | Inverting Input | Differential input node with identical common-mode range as +IN; used for reference comparison or hysteresis feedback paths. |
| VOUT | Open-Drain Output | NMOS drain terminal requiring external pull-up; supports wired-OR logic, level-shifted signaling, and bidirectional bus arbitration. |
| V+ | Positive Supply | Power input for internal circuitry; bypass capacitor (0.1 µF ceramic) required between V+ and GND within 5 mm of the pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct interface to sensors or references operating at GND or V+, eliminating input voltage translation circuitry. |
| Open-drain output | Permits flexible pull-up to voltages up to 5.5 V-enabling I²C-compatible signaling, mixed-voltage bus interfacing, and OR'ed fault flags. |
| Ultra-low 9 µA supply current | Reduces average system power by >50% vs. standard comparators, critical for wearable and IoT edge nodes with µA-level sleep budgets. |
| Low 10 nA input bias current | Minimizes voltage error in high-impedance divider networks (e.g., battery voltage monitors using >1 MΩ resistors). |
| Specified down to 1.8 V | Guarantees full functionality at modern MCU I/O voltage levels, avoiding need for separate 3.3 V bias rails in compact designs. |
Applications
| Battery Voltage Monitor | Wired-OR Fault Bus |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger under-voltage lockout or full-charge indication. IC Role / Device Role / Timing Role: Comparator compares divided battery voltage against a precision reference; open-drain output pulls shared fault line low on threshold breach. Use Value: Eliminates need for external MOSFET or logic gate in fault aggregation; 2 pA leakage ensures minimal impact on high-value pull-up networks. | Use Scenario: Aggregating fault signals from multiple subsystems (e.g., thermal, overcurrent, memory CRC fail) onto a single interrupt line to host MCU. IC Role / Device Role / Timing Role: Each LMV7275MF drives same open-drain bus; any device pulling low asserts system fault regardless of others' states. Use Value: Reduces BOM count and routing complexity vs. discrete OR gates; supports mixed-supply subsystems via independent pull-up voltages. |
| Level-Shifting Interface | Low-Power Window Detector |
Use Scenario: Converting 1.8 V logic thresholds to 3.3 V or 5 V compatible levels for legacy peripherals or ADC reference control. IC Role / Device Role / Timing Role: LMV7275MF output pulled to higher rail; input referenced to low-voltage domain; no level translator IC required. Use Value: Achieves bidirectional voltage translation without direction control pins or timing skew; 880 ns delay preserves signal integrity in <1 MHz control loops. | Use Scenario: Detecting if sensor output remains within safe operational bounds (e.g., temperature, pressure) using dual comparators with hysteresis. IC Role / Device Role / Timing Role: One LMV7275MF monitors upper threshold, another lower; outputs feed AND gate or microcontroller GPIO. Use Value: 4 mV VOS and rail-to-rail inputs enable accurate 10–50 mV window widths; 9 µA total quiescent current extends battery life in portable medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7211DBVR | Push-pull output, 12 µA supply current, 1.5 mV VOS max, same SOT-23-5 package | Cannot perform wired-OR or level-shifting; requires pull-up only for active-low logic compatibility | Select when lowest offset and fastest rise time are prioritized over bus sharing capability. |
| MAX9021AXK+T | Open-drain output, 1.5 µA supply current, 5 mV VOS max, SC70-5 package | Lower supply current but slower 2.2 µs propagation delay; smaller 1.25 mm × 2.00 mm footprint | Select when ultra-low power dominates timing requirements and board space is constrained. |
Compared with TLV7211DBVR and MAX9021AXK+T, the LMV7275MF uniquely balances open-drain flexibility, sub-10 µA quiescent draw, and 880 ns speed-making it optimal for battery-powered systems needing both low power and bus-aggregation capability without sacrificing response time.
Availability
LMV7275MF is available at Aetrix Electronics and suitable for battery voltage monitoring, wired-OR fault buses, level-shifting interfaces, and low-power window detectors requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for LMV7275MF 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 and embedded processing solutions, with over 50 years of innovation in precision signal chain components.
The LMV727x family was designed specifically for ultra-low-power, rail-to-rail input comparator applications in space-constrained, battery-operated devices-emphasizing supply current efficiency, wide VCM, and flexible output topologies.
FAQ
What is the maximum supply voltage for the LMV7275MF?
The LMV7275MF supports a maximum supply voltage of 5.5 V, as specified in its Absolute Maximum Ratings table. Operation beyond this limit risks permanent damage. At 5.5 V, the device maintains full functionality-including rail-to-rail input range and open-drain output compatibility with pull-ups up to 5.5 V-making LMV7275MF suitable for mixed-voltage systems where V+ may swing near 5 V while interfacing with 3.3 V or 1.8 V logic domains.
Does the LMV7275MF require an external pull-up resistor on its output?
Yes, the LMV7275MF requires an external pull-up resistor on its VOUT pin because it features an open-drain NMOS output stage. Without a pull-up, the output remains floating when the internal transistor is off. The resistor value must balance rise time and power consumption-typical values range from 10 kΩ (for faster edges) to 100 kΩ (for ultra-low current)-and the pull-up voltage may be any value between V− and 5.5 V, enabling level-shifting functionality unique to LMV7275MF among its family.
Can the LMV7275MF operate from a 1.8 V supply and still drive a 3.3 V logic interface?
Yes, the LMV7275MF can operate from a 1.8 V supply while driving a 3.3 V logic interface. Its open-drain output allows the external pull-up resistor to connect to 3.3 V, so the output swings between GND and 3.3 V regardless of the 1.8 V V+ supply. This level-shifting behavior is explicitly supported in the datasheet and is a defining feature of LMV7275MF-not shared by the push-pull-output LMV7271 or LMV7272 variants.
What is the input common-mode voltage range of the LMV7275MF?
The LMV7275MF has an input common-mode voltage range of –0.1 V to V+ + 0.1 V, verified across 1.8 V, 2.7 V, and 5 V supplies. This rail-to-rail input capability allows direct sensing of signals at ground (e.g., battery negative terminals) or near the positive rail (e.g., unregulated LDO outputs), eliminating the need for input attenuators or level shifters in many monitoring applications-and is a core specification distinguishing LMV7275MF from older comparators with limited VCM.
How does the LMV7275MF's propagation delay vary with supply voltage?
The LMV7275MF's propagation delay increases with decreasing supply voltage: 880 ns (tPHL) at 1.8 V/20-mV overdrive, 1200 ns at 2.7 V, and 2100 ns at 5 V. This inverse relationship is due to reduced internal drive strength at lower V+, and is fully characterized in the AC Electrical Characteristics tables. Designers must select LMV7275MF for timing-critical applications only when the worst-case delay at minimum operating voltage meets system requirements-e.g., 2100 ns at 5 V still supports <500 kHz sampling in simple threshold detection.
LMV7275MF 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:
- CMOS, Open-Drain, 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
- :
- SOT-23-5
LMV7275MF FAQ
1.How can I place an order for LMV7275MF through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7275MF 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 LMV7275MF reliable?
The price and inventory of LMV7275MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7275MF is usually 5 days.
3.What payment methods are accepted for LMV7275MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7275MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7275MF?
LMV7275MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7275MF 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 LMV7275MF?
For technical support, including LMV7275MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7275MF requirements.
6.How does Aetrix verify that LMV7275MF is sourced from the original manufacturer or authorized distributors?
All LMV7275MF 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 LMV7275MF meets industry standards.
7.What is the process for return or replacement of LMV7275MF?
All LMV7275MF units undergo pre-shipment inspection (PSI). If there is an issue with LMV7275MF, 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 LMV7275MF part is unused and in its original packaging.
Return procedure for LMV7275MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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