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Texas Instruments LMV7235M7X/NOPB
- Part No.:
- LMV7235M7X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7235M7X/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,751
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Product details
Overview
LMV7235M7X/NOPB from Texas Instruments is an ultra-low-power, rail-to-rail input comparator with open-drain output, 75-ns propagation delay at 5 V, 65 µA supply current, and −0.2 V to 5.2 V input common-mode range. It operates from 2.7 V to 5.5 V and is used in battery-powered zero-crossing detection and level-shifting interfaces.
For engineers reviewing the LMV7235M7X/NOPB datasheet, LMV7235M7X/NOPB pinout, LMV7235M7X/NOPB application, or LMV7235M7X/NOPB equivalent, key selection criteria include open-drain output compatibility with mixed-voltage buses, sub-100 ns timing for high-speed sampling, rail-to-rail input operation below ground and above V+, and ultra-low quiescent current for portable systems.
Technical Context
The LMV7235M7X/NOPB uses a complementary PNP/NPN input stage enabling > rail-to-rail common-mode operation (−0.2 V to V+ + 0.2 V), allowing direct ground- and supply-sensing without level shifters. Its open-drain output requires an external pull-up resistor, enabling wired-OR logic and voltage-level translation between domains.
Propagation delay remains stable across 20–100 mV input overdrive and 15 pF load at 5 V, with typical 75 ns (rising/falling) and <2 ns skew. Input offset voltage is ±1 mV (typ) at 5 V, and supply current stays within 65–95 µA across 2.7–5.5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100 mV overdrive, 15 pF load - enables sampling up to ~10 MHz with deterministic timing margin |
| Supply Current | 65 µA at 5 V - supports multi-year battery life in always-on sensor nodes and portable instrumentation |
| Input Common-Mode Range | −0.2 V to 5.2 V at 5 V supply - permits direct sensing of signals below ground (e.g., transducer outputs) and above V+ (e.g., supply monitoring) |
| Output Type | Open-drain - allows interface to higher-voltage logic (e.g., 3.3 V MCU with 5 V bus) via external pull-up |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), 3.3 V, and 5 V systems without regulation |
| Input Offset Voltage | ±1 mV (typ) at 5 V - ensures accurate threshold detection in precision window and zero-crossing circuits |
| ESD Rating | ±1000 V HBM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
LMV7235M7X/NOPB is packaged in a 5-pin SC70 (DGK) package with nominal body size 2.00 mm × 1.25 mm and 0.65 mm pitch. This space-saving footprint supports high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Open-drain output | Active-low output requiring external pull-up; supports level shifting, wired-OR, and I²C-compatible bus interfacing |
| 2 - V− | Negative supply | Ground reference pin; accepts 0 V in single-supply operation; must be connected for proper biasing |
| 3 - IN+ | Non-inverting input | High-impedance node (400 nA max bias current); accepts rail-to-rail analog signals including sub-ground voltages |
| 4 - IN− | Inverting input | High-impedance node with identical specs to IN+; differential input voltage limited to ±supply |
| 5 - V+ | Positive supply | Primary power pin; supports 2.7–5.5 V; supplies internal bias and output stage (pull-down only) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with extended range | Operates with inputs 200 mV below V− and 200 mV above V+, enabling direct ground-referenced signal conditioning |
| Ultra-low quiescent current | 65 µA at 5 V ensures minimal battery drain in always-on comparators for IoT edge sensors |
| 75-ns propagation delay | Consistent timing performance across temperature (−40°C to +85°C) and supply (2.7–5.5 V) for reliable high-speed decision logic |
| Open-drain output architecture | Eliminates need for output pull-up on board when interfacing to higher-voltage logic or shared buses |
| Single-supply optimized design | No dual-rail requirement; fully functional with 2.7 V minimum supply - ideal for coin-cell and energy-harvesting systems |
Applications
| Portable Power Monitoring | Zero-Crossing Detection |
|---|---|
|
Use Scenario: Real-time monitoring of Li-ion battery voltage during charge/discharge cycles in wearables and medical patches. IC Role / Device Role / Timing Role: Comparator configured as a low-threshold detector triggering wake-up or shutdown at 2.8 V cutoff. Use Value: 65 µA supply current extends operational lifetime; rail-to-rail input captures full discharge curve down to 0 V reference. |
Use Scenario: Detecting AC line zero crossings in smart home dimmers and isolated power supplies. IC Role / Device Role / Timing Role: Inverting configuration with grounded IN− and AC-coupled IN+ generating clean digital edges. Use Value: 75 ns delay ensures sub-microsecond jitter; extended common-mode range tolerates DC offsets in transformer-coupled inputs. |
| Level-Shifting Interface | Window Comparator |
|
Use Scenario: Translating 1.8 V logic thresholds to 3.3 V domain in mixed-voltage microcontroller peripherals. IC Role / Device Role / Timing Role: Open-drain output pulled to 3.3 V while powered from 1.8 V supply, acting as bidirectional level translator. Use Value: Eliminates dedicated level shifter ICs; 200 mV below ground capability accommodates negative transient margins. |
Use Scenario: Validating sensor output (e.g., thermistor voltage) stays within safe operating band in industrial controllers. IC Role / Device Role / Timing Role: Dual LMV7235M7X/NOPB devices configured as upper/lower threshold detectors with hysteresis. Use Value: Matched propagation delay (<2 ns skew) ensures precise window timing; ±1 mV offset enables tight tolerance bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7211IDBVR | Push-pull output, 110 ns delay, 85 µA supply current, same SC70-5 package | Lacks open-drain flexibility; requires no pull-up but cannot perform wired-OR or level shift | Select TLV7211IDBVR when fast, low-jitter push-pull output is preferred and bus sharing is unnecessary |
| MAX9021AUT+T | Open-drain output, 120 ns delay, 11 µA supply current, SOT-23-5 package | Lower power but slower response; narrower 1.8–5.5 V supply range; no extended common-mode range | Select MAX9021AUT+T only for ultra-low-power, non-critical timing applications where sub-100 ns is not required |
Compared with TLV7211IDBVR and MAX9021AUT+T, LMV7235M7X/NOPB uniquely balances 75 ns speed, 65 µA ultra-low power, open-drain versatility, and −0.2 V to V+ + 0.2 V input range - making it optimal for precision, mixed-voltage, battery-constrained systems demanding deterministic timing.
Availability
LMV7235M7X/NOPB is available at Aetrix Electronics and suitable for portable power monitoring, zero-crossing detection, level-shifting interfaces, and window comparator circuits requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for LMV7235M7X/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 delivering analog and embedded processing solutions, with leadership in precision analog, low-power design, and high-reliability manufacturing.
The LMV7235M7X/NOPB belongs to TI's ultra-low-power comparator product line, engineered specifically for battery-operated and space-constrained applications where speed, accuracy, and supply efficiency must coexist without compromise.
FAQ
What is the maximum operating temperature for LMV7235M7X/NOPB?
The LMV7235M7X/NOPB is specified for operation from −40°C to +85°C ambient temperature. Its thermal resistance (RθJA) is 478°C/W in the SC70 package, and junction temperature must remain ≤150°C under all conditions. Derating is required above 85°C ambient unless heatsinking or airflow is applied. LMV7235M7X/NOPB maintains 75 ns propagation delay and 65 µA supply current across this full industrial temperature range.
Does LMV7235M7X/NOPB support true rail-to-rail input?
Yes, LMV7235M7X/NOPB supports greater-than-rail-to-rail input: its common-mode voltage range extends from −0.2 V to V+ + 0.2 V at 5 V supply. This allows direct sensing of signals below ground (e.g., transducer outputs) and above V+ (e.g., supply rails), unlike standard rail-to-rail comparators limited to V− to V+. The LMV7235M7X/NOPB achieves this using complementary PNP/NPN input stages.
What pull-up resistor value is recommended for LMV7235M7X/NOPB output?
A 10 kΩ pull-up resistor to the target logic voltage (e.g., 3.3 V or 5 V) is recommended for LMV7235M7X/NOPB to achieve optimal rise time and noise immunity. Lower values (e.g., 4.7 kΩ) reduce rise time but increase static current; higher values (e.g., 100 kΩ) save power but slow response and increase susceptibility to noise. The LMV7235M7X/NOPB output leakage is ≤3 nA, ensuring reliable high-state retention with up to 1 MΩ pull-up.
Can LMV7235M7X/NOPB be used in a crystal oscillator circuit?
Yes, LMV7235M7X/NOPB is explicitly validated in crystal oscillator configurations per TI's application note SNOS532O. Its low input bias current (≤400 nA), high gain, and 75 ns propagation delay enable stable oscillation with fundamental-mode crystals. The open-drain output simplifies feedback network design, and the extended common-mode range accommodates DC biasing networks. LMV7235M7X/NOPB has been demonstrated driving 32.768 kHz and 1–4 MHz crystals in low-power clock generation.
Is LMV7235M7X/NOPB pin-compatible with LMV7239 variants?
No, LMV7235M7X/NOPB is not pin-compatible with LMV7239 variants despite identical pinout numbering. While both share the same SC70-5 footprint and pin assignments (VOUT, V−, IN+, IN−, V+), LMV7239 features a push-pull output that sources current - whereas LMV7235M7X/NOPB has open-drain output that only sinks. Swapping them requires redesigning the output stage (removing pull-up for LMV7239, adding it for LMV7235M7X/NOPB).
LMV7235M7X/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:
- Open-Drain, Rail-to-Rail
- 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
LMV7235M7X/NOPB FAQ
1.How can I place an order for LMV7235M7X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7235M7X/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 LMV7235M7X/NOPB reliable?
The price and inventory of LMV7235M7X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7235M7X/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7235M7X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7235M7X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7235M7X/NOPB?
LMV7235M7X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7235M7X/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 LMV7235M7X/NOPB?
For technical support, including LMV7235M7X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7235M7X/NOPB requirements.
6.How does Aetrix verify that LMV7235M7X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7235M7X/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 LMV7235M7X/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7235M7X/NOPB?
All LMV7235M7X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7235M7X/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 LMV7235M7X/NOPB part is unused and in its original packaging.
Return procedure for LMV7235M7X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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