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Texas Instruments LMV761MFX
- Part No.:
- LMV761MFX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
LMV761MFX.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,951
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Product details
Overview
LMV761MFX from Texas Instruments is a single, low-voltage, precision comparator with push-pull output and active-low shutdown pin, designed for battery-powered systems requiring 0.2 mV typical input offset voltage, 120 ns propagation delay at 50 mV overdrive, and 300 µA supply current at 5 V. It operates from 2.7 V to 5.25 V and supports −40°C to +125°C ambient range.
For engineers reviewing the LMV761MFX datasheet, LMV761MFX pinout, LMV761MFX application, or LMV761MFX equivalent, key selection considerations include its rail-to-rail input common-mode range (−0.3 V to VCC − 1.3 V), CMRR of 100 dB, PSRR of 110 dB, and shutdown leakage < 0.2 µA - critical for portable, scanner, and automotive window comparator designs.
Technical Context
The LMV761MFX implements a CMOS-input, push-pull-output architecture eliminating external pull-up resistors and enabling direct interfacing with digital logic. Its internal design supports precise threshold detection with 1 mV max input offset voltage over full temperature range and 0.2 pA typical input bias current.
Shutdown functionality is implemented via an active-low SD pin referenced to ground (not VCC), allowing 5-V logic control while operating at lower supply voltages; in shutdown, supply current drops to 20 nA and output enters high-impedance state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.25 V - enables operation from single-cell Li-ion (3.0 V nominal) or 5-V rail without level shifting |
| Input Offset Voltage (max) | 1 mV over −40°C to +125°C - ensures stable switching thresholds in automotive and industrial environments |
| Propagation Delay | 120 ns at 50 mV overdrive, 5 V supply - supports high-speed sampling up to ~4 MHz in oscillator or zero-crossing circuits |
| Supply Current (typ) | 225 µA at 5 V, 25°C - reduces battery drain in always-on sensor monitoring applications |
| CMRR / PSRR | 100 dB / 110 dB - rejects power supply noise and common-mode interference in noisy embedded systems |
| Input Bias Current (typ) | 0.2 pA - permits use with >10 MΩ source impedances without significant error in precision reference comparators |
| Output Type | Push-pull - drives CMOS/TTL loads directly without external pull-up, simplifying PCB layout and reducing BOM count |
Pinout & Package
LMV761MFX is packaged in a 6-pin SOT-23 (DBV) with body size 2.90 mm × 1.60 mm, optimized for space-constrained portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN) | Noninverting Input | Accepts analog input signals up to VCC − 1.3 V; high-impedance node for precision threshold sensing |
| 2 (V−) | Negative Power Terminal | Ground reference for single-supply operation; must be connected to system GND |
| 3 (−IN) | Inverting Input | Reference input for comparator decision; supports hysteresis feedback networks |
| 4 (OUT) | Output | Push-pull digital output capable of sourcing/sinking ≥4 mA at 5 V; compatible with 3.3-V/5-V logic |
| 5 (SD) | Shutdown (active low) | Logic-controlled disable; pulls supply current to 20 nA when grounded; max input voltage = 5.5 V (independent of VCC) |
| 6 (V+) | Positive Power Terminal | Supplies operating power; decoupling capacitor required between V+ and V− per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Precision offset performance | 0.2 mV typical VOS at 25°C, 1 mV max over −40°C to +125°C - enables accurate voltage window detection without calibration |
| Ultra-low input bias current | 0.2 pA typical - eliminates loading error in high-impedance sensor interfaces (e.g., photodiode, thermistor bridges) |
| Integrated shutdown mode | 20 nA quiescent current in shutdown with high-Z output - extends battery life in intermittent-sampling systems |
| Rail-to-rail input common-mode range | −0.3 V to VCC − 1.3 V - allows direct sensing of signals near ground or supply rails in single-supply configurations |
| High-speed push-pull output | 120 ns propagation delay + 1.7 ns rise/fall time - supports fast edge detection in motor commutation or data acquisition triggers |
Applications
| Portable Battery Monitoring | Scanner Threshold Detection |
|---|---|
|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charging/discharging cycles in handheld medical devices. IC Role / Device Role / Timing Role: Precision comparator detecting under-voltage lockout (UVLO) and over-voltage protection (OVP) thresholds with hysteresis. Use Value: 0.2 mV VOS and 100 dB CMRR ensure accurate trip points despite supply ripple and PCB trace coupling. |
Use Scenario: Detecting paper edge position and toner density in laser printer scanning subsystems. IC Role / Device Role / Timing Role: High-speed differential line receiver comparing analog scan signal against dynamically adjusted reference. Use Value: 120 ns propagation delay and 1.7 ns output edge rate enable reliable capture of fast-moving optical transitions. |
| Automotive Window Comparator | Set-Top Box Power Sequencing |
|
Use Scenario: Validating regulated 3.3-V and 5-V rail integrity in infotainment head units across temperature extremes. IC Role / Device Role / Timing Role: Dual-threshold comparator generating fault flag when supply deviates beyond ±3% window. Use Value: AEC-Q100–qualified LMV762Q-Q1 family context confirms robustness; LMV761MFX shares same 125°C junction rating and ESD specs. |
Use Scenario: Controlling power-up sequence of FPGA, memory, and tuner ICs in digital cable receivers. IC Role / Device Role / Timing Role: Enabling downstream regulators only after upstream rails stabilize, using programmable hysteresis. Use Value: Shutdown pin allows synchronized disable of multiple comparators during standby, cutting system leakage by >99%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7215MF/NOPB | No shutdown pin; 1.2 mV max VOS; 130 ns propagation delay; SOT-23-6 package | Lacks power-gating capability; higher offset limits accuracy in low-drift references | Select when shutdown is unnecessary and cost sensitivity outweighs 0.2 mV offset advantage |
| TLV3601DBVR | Higher speed (4.3 ns tPD); rail-to-rail output; no shutdown; 1.6 mV max VOS; SOT-23-6 | Optimized for ultra-fast response, not precision - unsuitable for sub-mV threshold detection | Choose only for timing-critical pulse discrimination where offset tolerance >1 mV is acceptable |
Compared with LMV761MFX, LMV7215MF/NOPB offers identical packaging but sacrifices shutdown control and precision; TLV3601DBVR trades 20× faster speed for 8× worse offset and no power management - making LMV761MFX optimal for battery-sensitive, accuracy-critical detection tasks.
Availability
LMV761MFX is available at Aetrix Electronics and suitable for portable medical devices, industrial scanners, automotive body controllers, and set-top box power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV761MFX 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 conditioning and low-power design.
The LMV76x product line was engineered specifically for portable, battery-powered electronics demanding high accuracy, low quiescent current, and robust operation from 2.7 V - targeting applications where size, power, and precision intersect.
FAQ
What is the maximum supply voltage rating for LMV761MFX?
The absolute maximum supply voltage (V+ – V−) for LMV761MFX is 5.5 V. Operation above this level risks permanent damage. The recommended operating range is 2.7 V to 5.25 V, ensuring specified performance including 120 ns propagation delay and 0.2 mV typical input offset voltage. Exceeding 5.25 V may degrade long-term reliability even if within absolute maximum limits.
Does LMV761MFX support rail-to-rail input operation?
LMV761MFX supports a wide input common-mode voltage range from −0.3 V to VCC − 1.3 V at 5 V supply (−0.3 V to 3.7 V), and −0.3 V to 1.4 V at 2.7 V supply. It does not achieve true rail-to-rail input (i.e., up to VCC), but its extended lower range enables sensing below ground in single-supply configurations - a key advantage over standard comparators.
How does the shutdown pin (SD) function on LMV761MFX?
The SD pin on LMV761MFX is active-low: driving it to GND disables the comparator, reduces supply current to 20 nA, and places the OUT pin in high-impedance state. The pin accepts up to 5.5 V regardless of VCC, enabling 5-V logic control of a 3.3-V powered LMV761MFX. Leaving SD floating is prohibited - it must be pulled high (to VCC) or low via a defined logic source.
What is the output drive capability of LMV761MFX at 5 V supply?
At 5 V supply and 25°C, LMV761MFX can source up to 4 mA while maintaining VOH ≥ VCC − 0.35 V, and sink up to 4 mA while maintaining VOL ≤ 250 mV. Output short-circuit current is rated ±6 mA minimum. These values ensure compatibility with standard 74LVC, 74AHC, and microcontroller GPIO inputs without external buffering.
Is LMV761MFX qualified for automotive applications?
LMV761MFX itself is not AEC-Q100 qualified; however, the pin-compatible LMV762Q-Q1 dual variant is explicitly qualified for Automotive Grade 1 (−40°C to +125°C). LMV761MFX shares identical electrical specifications, thermal ratings (150°C max junction), and ESD robustness (±2000 V HBM) - making it suitable for non-safety-critical automotive subsystems where formal qualification is not mandated.
LMV761MFX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5V
- :
- 0.2mV @ 5V
- Voltage - Input Offset (Max):
- 50pA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 700µA
- Current - Quiescent (Max):
- 100dB CMRR, 110dB PSRR
- CMRR, PSRR (Typ):
- 225ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-6
LMV761MFX FAQ
1.How can I place an order for LMV761MFX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV761MFX 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 LMV761MFX reliable?
The price and inventory of LMV761MFX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV761MFX is usually 5 days.
3.What payment methods are accepted for LMV761MFX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV761MFX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV761MFX?
LMV761MFX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV761MFX 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 LMV761MFX?
For technical support, including LMV761MFX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV761MFX requirements.
6.How does Aetrix verify that LMV761MFX is sourced from the original manufacturer or authorized distributors?
All LMV761MFX 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 LMV761MFX meets industry standards.
7.What is the process for return or replacement of LMV761MFX?
All LMV761MFX units undergo pre-shipment inspection (PSI). If there is an issue with LMV761MFX, 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 LMV761MFX part is unused and in its original packaging.
Return procedure for LMV761MFX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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