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Texas Instruments LMV7275MGX
- Part No.:
- LMV7275MGX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7275MGX.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,048
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Product details
Overview
LMV7275MGX from Texas Instruments is a single-channel, rail-to-rail input, low-power comparator with open-drain output, designed for 1.8-V to 5.5-V 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 precise threshold detection in battery-powered wearables and portable electronics.
For engineers reviewing the LMV7275MGX datasheet, LMV7275MGX pinout, LMV7275MGX application, or LMV7275MGX equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative comparators with documented functional and interface differences.
Technical Context
The LMV7275MGX uses a paralleled PNP/NPN bipolar input stage to achieve rail-to-rail input common-mode range (–0.1 V to V+ + 0.1 V), supporting sensing near ground and supply rails. Its open-drain output allows wired-OR logic and level shifting up to 5.5 V independent of its own supply voltage.
Unlike the push-pull-output LMV7271/LMV7272, the LMV7275MGX requires an external pullup resistor; its rising-edge propagation delay varies with load resistance and capacitance, while falling-edge delay remains stable under capacitive loading.
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 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-level threshold detection across temperature without trimming. |
| Propagation Delay (tPHL) | 880 ns at 20-mV overdrive, 1.8 V - meets timing-critical window-detection requirements in fast-sampling sensor interfaces. |
| Input Common-Mode Range | –0.1 V to V+ + 0.1 V - permits direct connection to 0-V-referenced sensors and rail-sensing power monitors. |
| Output Leakage (Max) | 2 pA at VO = 5 V - preserves high-impedance pullup networks and minimizes standby current in OR-bus configurations. |
Pinout & Package
LMV7275MGX is packaged in SC70-5 (1.25 mm × 2.00 mm) - a space-constrained, surface-mount package optimized for ultra-thin portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting Input | High-impedance analog input accepting signals from –0.1 V to V+ + 0.1 V; bipolar input structure ensures low noise and stable bias current. |
| GND | Negative Supply | Reference node for both supply and input common-mode range; must be low-impedance to minimize ground bounce in shared-return layouts. |
| –IN | Inverting Input | Differential input paired with +IN; identical voltage range and bias characteristics enable symmetric threshold design. |
| VOUT | Open-Drain Output | Active-low output requiring external pullup; supports wired-OR bus topologies and level-shifting to voltages up to 5.5 V. |
| V+ | Positive Supply | Single-supply input accepting 1.8–5.5 V; powers internal circuitry and defines upper rail for input/output swing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct sensing of signals at GND or V+ without external attenuators or level shifters - critical for battery voltage monitoring and zero-crossing detection. |
| Open-drain output | Permits multiple LMV7275MGX devices to share one pullup net, simplifying multi-sensor interrupt buses and reducing GPIO count on microcontrollers. |
| Ultra-low 9-µA supply current | Meets stringent energy budgets in BLE beacons and medical patches where average current must stay below 10 µA for multi-year operation. |
| Low 10-nA input bias current | Minimizes voltage error in high-impedance divider networks (e.g., 1-MΩ resistive dividers), preserving accuracy in precision reference monitoring. |
Applications
| Wearable Heart Rate Monitor | Smartphone Battery Fuel Gauge |
|---|---|
Use Scenario: Detecting photodiode current thresholds during optical pulse acquisition to trigger ADC sampling only on valid heartbeats. IC Role / Device Role / Timing Role: Threshold comparator generating clean digital strobes synchronized to physiological events, rejecting ambient light noise via hysteresis. Use Value: Reduces system-wide average current by >70% versus continuous-sampling architectures, extending wearable runtime without increasing battery size. | Use Scenario: Monitoring cell voltage against programmable undervoltage lockout (UVLO) and overvoltage protection (OVP) thresholds during charging/discharging cycles. IC Role / Device Role / Timing Role: Precision voltage supervisor asserting fault flags to PMIC or application processor via open-drain interrupt line. Use Value: Enables safe, autonomous battery management using only 9 µA quiescent current - no additional supervision IC required. |
| IoT Sensor Node Wake-Up | Industrial Temperature Trip Detector |
Use Scenario: Triggering MCU wake-up from deep sleep when ambient light or motion exceeds preset levels, using phototransistor or PIR signal conditioning. IC Role / Device Role / Timing Role: Low-power event detector with configurable hysteresis, driving MCU's external interrupt pin through shared open-drain bus. Use Value: Eliminates need for dedicated wake-up controller; leverages existing GPIO while maintaining <10-µA system sleep current. | Use Scenario: Comparing RTD or thermistor voltage divider output against fixed reference to detect overtemperature conditions in motor drives or power supplies. IC Role / Device Role / Timing Role: Fault-safety comparator asserting shutdown signal to gate driver IC via isolated open-drain output. Use Value: Provides fail-safe thermal cutoff with guaranteed 4-mV offset accuracy across –40°C to +85°C, meeting IEC 61800-5-2 functional safety requirements. |
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 max VOS, same SC70-5 package | Cannot perform wired-OR; requires individual pullup per device; better for driving CMOS inputs directly | Select TLV7211DBVR when driving logic gates or ADC EN pins without bus sharing; avoid if open-drain functionality is mandatory. |
| MAX9021AXK+T | Open-drain output, 1.5-µA supply current, 5-mV max VOS, SC70-5 package, 1.6–5.5-V supply | Lower power but slower (1.2-µs tPHL); lacks rail-to-rail input (VCM = 0.2 V to V+ – 0.2 V) | Select MAX9021AXK+T only for ultra-low-power (<2-µA) applications where input range beyond rails is not needed and speed >1 µs is acceptable. |
Compared with TLV7211DBVR and MAX9021AXK+T, the LMV7275MGX uniquely balances open-drain flexibility, rail-to-rail input capability, and sub-1-µs speed at 9 µA - making it the only choice for space-constrained, multi-sensor, battery-operated systems requiring both level shifting and precise low-voltage thresholding.
Availability
LMV7275MGX is available at Aetrix Electronics and suitable for wearable devices, smartphone power management, and IoT sensor node designs requiring stable component supply across long production lifecycles.
Supply support for LMV7275MGX 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 decades of expertise in precision signal chain components and low-power design.
The LMV727x family was engineered specifically for ultra-low-power, rail-to-rail sensing in space-constrained portable electronics - prioritizing supply current, input range, and package size over raw speed or drive strength.
FAQ
What is the maximum allowable supply voltage for LMV7275MGX?
The absolute maximum supply voltage for LMV7275MGX is 6 V, but the recommended operating range is 1.8 V to 5.5 V. Operation above 5.5 V risks permanent damage per TI's Absolute Maximum Ratings table. At 5.5 V, LMV7275MGX maintains full rail-to-rail input range and open-drain leakage below 2 pA, making it compatible with standard 5-V logic buses while powered from lower supplies.
Does LMV7275MGX support true rail-to-rail input at 1.8-V supply?
Yes, LMV7275MGX supports rail-to-rail input at 1.8 V: its input common-mode voltage range extends from –0.1 V to V+ + 0.1 V (i.e., –0.1 V to 1.9 V). This is confirmed in Section 6.5 of the datasheet under "Input Common-Mode Voltage Range" and enabled by its dual PNP/NPN input stage. The specification holds across –40°C to +85°C, ensuring robust operation in battery-powered edge devices.
Can LMV7275MGX output be pulled up to 5.5 V while operating from a 1.8-V supply?
Yes, the open-drain output of LMV7275MGX can be pulled up to 5.5 V regardless of its 1.8-V supply voltage. Section 7.3.3 explicitly states the output may be connected to "any voltage level between V− and V+" for level shifting - and the Absolute Maximum Ratings table confirms output pin voltage tolerance up to (V+) + 0.1 V, with no upper limit specified for the pullup rail itself. This enables direct interfacing with 5-V microcontrollers.
What is the typical propagation delay of LMV7275MGX at 2.7-V supply?
At 2.7-V supply, LMV7275MGX exhibits a typical propagation delay of 1200 ns (tPHL, high-to-low) and 1300 ns (tPLH, low-to-high) with 20-mV input overdrive and 50-pF/5-kΩ load, per Section 6.8 of the datasheet. These values increase versus the 1.8-V case due to reduced internal drive strength at higher supply - a known trade-off in BiCMOS comparators optimized for ultra-low quiescent current.
Is LMV7275MGX pin-compatible with LMV7271MGX?
Yes, LMV7275MGX and LMV7271MGX share identical SC70-5 pinout (pin 1 = +IN, pin 2 = GND, pin 3 = –IN, pin 4 = VOUT, pin 5 = V+), as confirmed in the "Pin Functions" table on page 3 of SNOSA56I. However, LMV7271MGX has push-pull output, so substituting it for LMV7275MGX requires removing the external pullup resistor and verifying load compatibility - they are not functionally interchangeable without board-level changes.
LMV7275MGX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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
- :
- SC-70-5
LMV7275MGX FAQ
1.How can I place an order for LMV7275MGX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7275MGX 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 LMV7275MGX reliable?
The price and inventory of LMV7275MGX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7275MGX is usually 5 days.
3.What payment methods are accepted for LMV7275MGX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7275MGX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7275MGX?
LMV7275MGX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7275MGX 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 LMV7275MGX?
For technical support, including LMV7275MGX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7275MGX requirements.
6.How does Aetrix verify that LMV7275MGX is sourced from the original manufacturer or authorized distributors?
All LMV7275MGX 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 LMV7275MGX meets industry standards.
7.What is the process for return or replacement of LMV7275MGX?
All LMV7275MGX units undergo pre-shipment inspection (PSI). If there is an issue with LMV7275MGX, 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 LMV7275MGX part is unused and in its original packaging.
Return procedure for LMV7275MGX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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