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Texas Instruments LMC7225IM5X/NOPB
- Part No.:
- LMC7225IM5X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7225IM5X/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,638
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Product details
Overview
LMC7225IM5X/NOPB from Texas Instruments is a micro-power, rail-to-rail CMOS comparator with open-drain output, designed for ultra-low-power battery-operated systems. It delivers 0.7 μA typical supply current, operates from 2V to 8V, features input common-mode range beyond rails (−0.3 V to 5.3 V at VS = 5 V), and supports level-shifting up to 15 V via external pull-up. It is used in handheld electronics, metering systems, and RC timers where minimal quiescent power and single-supply flexibility are critical.
For engineers reviewing the LMC7225IM5X/NOPB datasheet, LMC7225IM5X/NOPB pinout, LMC7225IM5X/NOPB application, or LMC7225IM5X/NOPB equivalent, key selection criteria include its open-drain architecture enabling voltage-level translation, guaranteed operation across −40°C to +85°C, sub-1 μA supply current, rail-to-rail input capability exceeding V+/V−, and compatibility with capacitive loads up to 10,000 pF without delay degradation.
Technical Context
The LMC7225IM5X/NOPB employs a high-gain CMOS input stage (140 dB voltage gain) with input bias current as low as 5 fA, enabling precision sensing in high-impedance circuits. Its input common-mode range extends 0.3 V below V− and 0.3 V above V+ at 5 V supply, allowing direct monitoring of supply rails or current-sense resistors without level-shifting circuitry.
As an open-drain comparator, it requires an external pull-up resistor to define logic-high voltage - supporting level translation to any voltage ≤15 V. Propagation delay is 24 μs (high-to-low) and 29 μs (low-to-high) at 10 mV overdrive and 5 V supply, with rise/fall times dependent on RPULL-UP–CLOAD time constant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 0.7 μA typical - enables multi-year battery life in always-on monitoring circuits. |
| Supply Voltage Range | 2 V to 8 V - supports single-cell Li-ion, dual-cell alkaline, and wide-input industrial supplies. |
| Input Common-Mode Range | −0.3 V to 5.3 V at VS = 5 V - permits direct connection to VCC or ground-referenced sense points. |
| Output Type | Open-drain - allows flexible logic-level translation and wired-OR bus configurations. |
| Propagation Delay | 24 μs (tPHL) / 29 μs (tPLH) at 10 mV overdrive, 5 V - suitable for low-frequency threshold detection and timing applications. |
| Input Offset Voltage | 6 mV max - ensures reliable switching with ≥10 mV signal margin in basic comparator applications. |
| Output Leakage Current | 0.01 nA typical at VOUT = 15 V - preserves high-impedance pull-up networks and minimizes standby power loss. |
Pinout & Package
LMC7225IM5X/NOPB is housed in a 5-pin SOT-23 package (JEDEC MO-178, TI drawing DBV), measuring 2.9 mm × 1.6 mm × 1.45 mm, with gull-wing leads and RoHS-compliant matte tin (Sn) lead finish. Thermal resistance θJA is 325°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting input | Accepts reference or feedback signal; supports common-mode voltage beyond rails. |
| 2 - GND | Ground reference | Return path for supply and signals; must be low-impedance for stable operation. |
| 3 - IN+ | Non-inverting input | Accepts sensed signal; matched input impedance and femtoampere bias enable high-Z sensor interfacing. |
| 4 - V+ | Positive supply | Power rail from 2 V to 8 V; internal regulation not required. |
| 5 - OUT | Open-drain output | Drains current only; requires external pull-up to define logic-high voltage (up to 15 V). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 0.7 μA typical - reduces battery drain in portable devices by >90% vs. standard comparators. |
| Rail-to-rail input with overvoltage tolerance | CMVR extends 0.3 V beyond V+/V− - eliminates need for external clamping diodes in supply-monitoring circuits. |
| Open-drain output with 15 V level-shift capability | Supports interface to 3.3 V, 5 V, or 12 V logic domains using a single external resistor - simplifies mixed-voltage system design. |
| High output sink current | 30 mA max sink capability at 5 V - directly drives LEDs, relays, or logic inputs without buffer stages. |
| Latch-up immunity | Withstands 300 mA transient injection - enhances reliability in noisy automotive or industrial environments. |
Applications
| Battery Voltage Monitor | RC Timer Threshold Detector |
|---|---|
|
Use Scenario: Detecting low-battery condition in a handheld medical device powered by a single 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: Comparator compares battery voltage against a precision 3.0 V reference; open-drain output pulls down a microcontroller's interrupt line. Use Value: 0.7 μA quiescent current extends standby runtime; rail-to-rail input allows direct sensing without resistor divider scaling. |
Use Scenario: Generating precise time delays in a low-power environmental sensor node using a 1 MΩ resistor and 100 nF capacitor. IC Role / Device Role / Timing Role: Compares RC ramp voltage to fixed threshold; output triggers wake-up of MCU after timeout. Use Value: Input bias current <5 fA prevents RC discharge error; propagation delay stability ensures ±2% timing accuracy over temperature. |
| Current-Sense Comparator | Window Comparator (Dual-Threshold) |
|
Use Scenario: Overcurrent protection in a USB-powered IoT hub, monitoring 50 mΩ sense resistor in the VIN path. IC Role / Device Role / Timing Role: Compares differential voltage across sense resistor to 25 mV threshold; open-drain output drives latch circuit. Use Value: Input common-mode range includes VIN (5 V) - enables high-side sensing without level shifters or isolated amplifiers. |
Use Scenario: Validating analog sensor output stays within safe operating band (e.g., 1.2 V to 2.8 V) in an industrial controller. IC Role / Device Role / Timing Role: Two LMC7225IM5X/NOPB units configured as upper/lower comparators; outputs feed AND gate for window detection. Use Value: Matched offset voltage (6 mV max) and CMRR (60 dB min) ensure tight window margins; open-drain outputs enable wired-AND logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7011DBVR | Push-pull output, 650 nA IQ, 1.8 V to 6 V supply, 350 ns propagation delay | Not suitable for level-shifting; faster but higher power; no over-rail input | Select TLV7011DBVR when fast response and push-pull drive are needed, and level translation is unnecessary. |
| MAX9015AUT+T | Open-drain, 1.1 μA IQ, 1.8 V to 5.5 V, −0.2 V to VCC+0.2 V input range | Narrower input range limits high-side sensing; higher supply current reduces battery life | Select MAX9015AUT+T only if footprint compatibility with SOT-23-5 is mandatory and 1.1 μA IQ is acceptable. |
Compared with TLV7011DBVR and MAX9015AUT+T, LMC7225IM5X/NOPB uniquely combines sub-1 μA supply current, over-rail input capability, and 15 V level-shifting - making it irreplaceable in ultra-low-power, high-voltage-interface applications where both precision and energy efficiency are non-negotiable.
Availability
LMC7225IM5X/NOPB is available at Aetrix Electronics and suitable for battery-powered handheld electronics, portable metering systems, and low-duty-cycle alarm circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LMC7225IM5X/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 leader delivering analog and embedded processing solutions, with decades of expertise in precision analog ICs and low-power design.
The LMC7225 belongs to TI's micro-power comparator product line, engineered specifically for energy-constrained applications such as wearables, remote sensors, and battery-backed instrumentation where nanowatt-level operation and rail-to-rail functionality are essential.
FAQ
What is the maximum supply voltage rating for LMC7225IM5X/NOPB?
The absolute maximum supply voltage (V+ – V−) for LMC7225IM5X/NOPB is 10 V. Continuous operation is specified from 2 V to 8 V. Exceeding 10 V risks permanent damage, and operation above 8 V is not characterized or guaranteed per the datasheet.
Can LMC7225IM5X/NOPB interface directly with a 12 V logic system?
Yes - LMC7225IM5X/NOPB's open-drain output supports level shifting up to 15 V. When used with a 12 V pull-up resistor, it can drive 12 V logic inputs directly. Ensure the external pull-up resistor limits output current to ≤30 mA and that VOUT does not exceed 15 V to avoid damage.
Does LMC7225IM5X/NOPB require input filtering for noise immunity?
LMC7225IM5X/NOPB has exceptionally high gain (140 dB), so small input noise near zero-crossing may cause output oscillation. External hysteresis - added via positive feedback - is recommended for noisy signals. The datasheet confirms that <1 μV input change drives full rail-to-rail output swing, underscoring sensitivity to interference.
What is the input bias current specification for LMC7225IM5X/NOPB?
The input bias current for LMC7225IM5X/NOPB is 5 fA typical at 25°C. This ultra-low value enables use with megaohm-range sensor elements and high-value RC timing networks without introducing significant error or discharge effects.
Is LMC7225IM5X/NOPB qualified for automotive applications?
No - LMC7225IM5X/NOPB is a catalog-grade device rated for −40°C to +85°C. For automotive use, TI offers the LMC7215-Q1 (AEC-Q100 Grade 3 qualified); the LMC7225 family has no Q1 variant, and LMC7225IM5X/NOPB is not certified for automotive deployment.
LMC7225IM5X/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2V ~ 8V, ±1V ~ 4V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 1µA
- Current - Quiescent (Max):
- 80dB CMRR, 90dB PSRR
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
LMC7225IM5X/NOPB FAQ
1.How can I place an order for LMC7225IM5X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7225IM5X/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 LMC7225IM5X/NOPB reliable?
The price and inventory of LMC7225IM5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7225IM5X/NOPB is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7225IM5X/NOPB transactions.
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LMC7225IM5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7225IM5X/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 LMC7225IM5X/NOPB?
For technical support, including LMC7225IM5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7225IM5X/NOPB requirements.
6.How does Aetrix verify that LMC7225IM5X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC7225IM5X/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 LMC7225IM5X/NOPB meets industry standards.
7.What is the process for return or replacement of LMC7225IM5X/NOPB?
All LMC7225IM5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC7225IM5X/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 LMC7225IM5X/NOPB part is unused and in its original packaging.
Return procedure for LMC7225IM5X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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