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Texas Instruments LMV7239M7X/NOPB
- Part No.:
- LMV7239M7X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7239M7X/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:15,198
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Product details
Overview
LMV7239M7X/NOPB from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, high-speed operation in single-supply systems. It delivers 75 ns propagation delay at 5 V with only 65 µA supply current, supports 2.7 V to 5.5 V supply range, and features ±0.2 V beyond-rail input common-mode range - enabling ground- and supply-sensing in battery-powered instrumentation and portable interfaces.
For engineers reviewing the LMV7239M7X/NOPB datasheet, LMV7239M7X/NOPB pinout, LMV7239M7X/NOPB application, or LMV7239M7X/NOPB equivalent, key selection criteria include propagation delay vs. overdrive, push-pull drive capability without external pull-up, rail-to-rail input operation below ground and above V+, low quiescent current across temperature, and compatibility with SC70-5 packaging for space-constrained PCB layouts.
Technical Context
The LMV7239M7X/NOPB uses complementary PNP/NPN input stages to achieve > rail-to-rail common-mode input range (−0.2 V to V+ + 0.2 V), allowing direct sensing of signals referenced to ground or V+. Its push-pull output stage provides active high/low drive with sourcing up to 55 mA and sinking up to 60 mA at 5 V, eliminating need for external pull-up resistors.
Propagation delay remains stable across temperature (80–96 ns from −40°C to 125°C at 20 mV overdrive) and load capacitance (75–106 ns for 0–100 pF at 5 V), with skew <1 ns between rising/falling edges - critical for precise timing in zero-crossing detection and window comparator topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100 mV overdrive, 15 pF load - enables sub-10 MHz sampling and fast edge detection |
| Supply Current | 65 µA typical at 5 V - supports multi-year battery life in always-on sensor nodes |
| Input Common-Mode Range | −0.2 V to V+ + 0.2 V - allows direct interface to ground-referenced sensors and V+-referenced references |
| Output Type | Push-pull - drives logic inputs directly without pull-up resistor; supports 4 mA high-level output swing within 0.25 V of V+ |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V system rails |
| Input Offset Voltage | ±1 mV typical at 5 V - ensures accurate threshold detection in precision level-shifted circuits |
| Operating Temperature | −40°C to +85°C - qualified for industrial and extended commercial environments |
Pinout & Package
LMV7239M7X/NOPB is packaged in a 5-pin SC70 (DGK) package measuring 2.00 mm × 1.25 mm, optimized for high-density portable designs. Pinout is identical to SOT-23-5 but with smaller footprint and thermal resistance of 478°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Output | Push-pull digital output capable of sourcing/sinking ≥4 mA; no external pull-up required |
| V− (Pin 2) | Negative Supply | Ground reference terminal; supports single-supply operation with 0 V connection |
| IN+ (Pin 3) | Noninverting Input | Rail-to-rail input node accepting signals from −0.2 V to V+ + 0.2 V |
| IN− (Pin 4) | Inverting Input | Rail-to-rail input node with same common-mode range as IN+ |
| V+ (Pin 5) | Positive Supply | Primary power rail (2.7–5.5 V); also serves as logic-high reference for output swing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with beyond-rail extension | Accepts inputs 200 mV below ground and 200 mV above V+, enabling direct sensing of ground- and supply-referenced signals |
| Push-pull output architecture | Eliminates need for external pull-up resistor; reduces BOM count and layout area in level-shifting and logic interfacing |
| 75-ns propagation delay at full overdrive | Supports high-speed applications including crystal oscillators, zero-crossing detectors, and sampling circuits up to ~10 MHz |
| 65 µA supply current at 5 V | Enables multi-year operation on coin-cell batteries in always-on monitoring systems |
| Stable operation from 2.7 V to 5.5 V | Single device supports both 3.3 V microcontroller I/O and legacy 5 V subsystems without level translation |
Applications
| Portable Power Monitoring | High-Speed Line Receiver |
|---|---|
Use Scenario: Real-time battery voltage supervision in Bluetooth earbuds, wearables, and IoT sensors using single-cell Li-ion (2.7–4.2 V). IC Role / Device Role / Timing Role: Comparator configured as window detector to trigger low-battery alert and overvoltage shutdown. Use Value: Beyond-rail input range allows direct sensing of battery voltage relative to ground and VDD, while 65 µA quiescent current minimizes impact on standby runtime. | Use Scenario: Differential signal recovery in USB 2.0 data lines or LVDS receiver front-ends where fast edge integrity is critical. IC Role / Device Role / Timing Role: High-speed comparator used as differential line receiver with hysteresis to reject noise on high-frequency data paths. Use Value: 75 ns propagation delay and <1 ns skew ensure accurate timing alignment; push-pull output drives FPGA or MCU input pins directly without RC delays. |
| Zero-Crossing Detection | Crystal Oscillator Buffer |
Use Scenario: AC mains synchronization in smart energy meters and TRIAC dimmer control circuits. IC Role / Device Role / Timing Role: Precision zero-crossing detector with minimal propagation delay variation across temperature. Use Value: Input common-mode range extending below ground enables direct AC coupling to transformer secondary; 75 ns delay ensures sub-1 µs timing jitter at 50/60 Hz. | Use Scenario: Low-power Pierce oscillator buffer in real-time clock (RTC) modules and wireless transceiver reference clocks. IC Role / Device Role / Timing Role: Active crystal oscillator amplifier providing gain and isolation for 32.768 kHz tuning fork crystals. Use Value: Ultra-low 65 µA supply current extends battery life in RTC backup operation; push-pull output delivers clean square wave to downstream clock dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7239M5X/NOPB | SOT-23-5 package (2.90 mm × 1.60 mm); higher θJA (265°C/W) vs. SC70's 478°C/W | Better thermal performance in high-density layouts; larger footprint may limit use in ultra-compact wearables | Select when board space permits and thermal dissipation under sustained load is critical |
| TLV3501DBVR | Higher speed (4.5 ns), higher supply current (6.5 mA), rail-to-rail output only (not input) | Not suitable for ground-sensing or low-power battery operation; requires external biasing for beyond-rail inputs | Choose only when nanosecond-level timing dominates over power and input range requirements |
Compared with LMV7239M5X/NOPB, the LMV7239M7X/NOPB offers superior board-area efficiency in SC70 packaging but trades off thermal resistance; versus TLV3501DBVR, it delivers 100× lower supply current and true beyond-rail input capability at the cost of propagation delay - making it optimal for battery-sensitive, precision-threshold applications rather than RF or high-speed logic.
Availability
LMV7239M7X/NOPB is available at Aetrix Electronics and suitable for portable power monitoring, zero-crossing detection, crystal oscillator buffering, high-speed line reception, and industrial sensor interface applications requiring stable component supply across long production lifecycles.
Supply support for LMV7239M7X/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 company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions.
The LMV7239M7X/NOPB belongs to TI's ultra-low-power, high-speed comparator product line, designed specifically for battery-operated instrumentation, portable medical devices, and energy-efficient industrial sensing where rail-to-rail input, push-pull output, and sub-100 ns timing are essential.
FAQ
What is the maximum operating supply voltage for LMV7239M7X/NOPB?
The LMV7239M7X/NOPB has an absolute maximum supply voltage rating of 6 V, but its recommended operating range is 2.7 V to 5.5 V. Operation at 5.5 V is fully characterized and supported across temperature; exceeding 5.5 V risks parametric degradation or permanent damage per the Absolute Maximum Ratings table in the SNOS532O datasheet.
Does LMV7239M7X/NOPB require an external pull-up resistor on its output?
No, the LMV7239M7X/NOPB features a push-pull output stage and does not require an external pull-up resistor. Unlike the open-drain LMV7235 variant, the LMV7239M7X/NOPB actively drives both high and low states - enabling direct interface to CMOS inputs and reducing component count in level-shifting and logic-gating applications.
Can LMV7239M7X/NOPB sense signals below ground potential?
Yes, the LMV7239M7X/NOPB supports an input common-mode voltage range extending 200 mV below ground (V− − 0.2 V), verified across temperature and supply conditions. This allows direct AC-coupled sensing of bipolar signals such as transformer outputs or audio waveforms without level-shifting circuitry - a key advantage over standard rail-to-rail comparators.
What is the typical propagation delay of LMV7239M7X/NOPB at 2.7 V supply?
At 2.7 V supply, 20 mV input overdrive, and 15 pF load, the LMV7239M7X/NOPB exhibits a typical propagation delay of 96 ns (rising edge) and 96 ns (falling edge), as specified in Section 6.5 of the SNOS532O datasheet. Delay increases slightly at lower supply voltages due to reduced internal drive strength, but remains tightly controlled with <2 ns skew.
Is LMV7239M7X/NOPB available in tape-and-reel packaging for automated assembly?
Yes, LMV7239M7X/NOPB is supplied in 3,000-unit tape-and-reel format (7-inch reel) compliant with EIA-481 standards, supporting high-volume SMT placement. The SC70-5 package is compatible with standard 0.65 mm pitch pick-and-place equipment, and moisture sensitivity level (MSL) is rated at Level 1 - unlimited floor life at ≤30°C/85% RH.
LMV7239M7X/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:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- 0.4µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 95µA
- Current - Quiescent (Max):
- 67dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 62ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
LMV7239M7X/NOPB FAQ
1.How can I place an order for LMV7239M7X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7239M7X/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 LMV7239M7X/NOPB reliable?
The price and inventory of LMV7239M7X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7239M7X/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7239M7X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7239M7X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7239M7X/NOPB?
LMV7239M7X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7239M7X/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 LMV7239M7X/NOPB?
For technical support, including LMV7239M7X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7239M7X/NOPB requirements.
6.How does Aetrix verify that LMV7239M7X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7239M7X/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 LMV7239M7X/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7239M7X/NOPB?
All LMV7239M7X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7239M7X/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 LMV7239M7X/NOPB part is unused and in its original packaging.
Return procedure for LMV7239M7X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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