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Texas Instruments LMC6762AIM
- Part No.:
- LMC6762AIM
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6762AIM.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,813
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Product details
Overview
LMC6762AIM from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with push-pull output, designed for ultra-low-power battery-operated systems. It delivers 10 μA max supply current per comparator, operates from 2.7V to 15V, and achieves rail-to-rail input common-mode range exceeding both supplies - enabling direct sensing near ground or V+ in 3V digital systems like handheld meters and portable alarms.
For engineers reviewing the LMC6762AIM datasheet, LMC6762AIM pinout, LMC6762AIM application, or LMC6762AIM equivalent, key selection criteria include its 420 ns propagation delay at 100 mV overdrive (5V), 2.7V guaranteed operation, push-pull output eliminating external pull-ups, ±0.02 pA typical input bias current, and SOIC-8 package compatibility with space-constrained PCB layouts.
Technical Context
The LMC6762AIM implements a CMOS input stage with rail-to-rail input voltage capability extending 200 mV beyond both supply rails at 2.7V, 5V, and 15V - verified by ≥75 dB CMRR across operating conditions. Its push-pull output stage delivers VOH ≥ 4.6 V and VOL ≤ 0.4 V at 5V/5 mA without external components, supporting direct TTL/CMOS interfacing.
Propagation delay is characterized from 420 ns (tPLH, 100 mV overdrive, 5V) to 900 ns (10 mV overdrive), with temperature-stable supply current (12–25 μA per comparator, −40°C to +85°C) independent of supply voltage - critical for consistent timing in RC timers and zero-crossing detectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current (max) | 10 μA per comparator - enables multi-year battery life in always-on monitoring circuits |
| Supply Voltage Range | 2.7 V to 15 V - supports single-cell Li-ion (3.0 V), 5 V logic rails, and 12 V industrial supplies |
| Input Common-Mode Range | Exceeds both rails by 200 mV - allows direct interface to sensors or signals near ground or V+ |
| Output Type | Push-pull - eliminates need for external pull-up resistors, reducing BOM count and board area |
| Propagation Delay | 420 ns @ 100 mV overdrive, 5 V - ensures fast response in window comparators and multivibrators |
| Input Offset Voltage (max) | 15 mV (AI grade) - sufficient for coarse threshold detection in alarm and metering applications |
| ESD Tolerance | 2 kV HBM - meets standard handling requirements for assembly in non-ESD-controlled environments |
Pinout & Package
LMC6762AIM is housed in an 8-pin SOIC (D) package (JEDEC MS-012, variation AA), 3.91 mm × 4.90 mm footprint, 1.75 mm max height, with gull-wing leads and NIPDAU lead finish. Pin 1 marked via laser etch in Q1 quadrant on tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comparator A) | Accepts reference or signal for first comparator; rail-to-rail capable down to −0.3 V |
| 2 | Non-Inverting Input (Comparator A) | Accepts sensed signal; common-mode range exceeds supplies by 200 mV |
| 3 | Output (Comparator A) | Push-pull output drives logic directly; sinks/sourcing up to 30 mA short-circuit limited |
| 4 | V− (Ground/Ref) | Low-side supply terminal; referenced for all inputs and outputs |
| 5 | Non-Inverting Input (Comparator B) | Second independent input channel; identical rail-to-rail performance to Pin 2 |
| 6 | Inverting Input (Comparator B) | Second independent input channel; supports differential or window configurations |
| 7 | Output (Comparator B) | Independent push-pull output; no cross-talk with Channel A under normal operation |
| 8 | V+ | Positive supply rail; supports 2.7–15 V operation; powers both comparators simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 200 mV beyond V− and V+ - enables direct sensor interfacing without level-shifting circuitry |
| Push-pull output architecture | Eliminates external pull-up resistors - reduces component count and improves rise/fall time consistency |
| Ultra-low quiescent power | 50 μW total at 5 V - extends battery life in portable electronics where standby current dominates energy budget |
| Guaranteed 2.7 V operation | Specified performance at minimum supply - ensures reliable function in aging or low-battery states |
| High input impedance | 2.0 fA typical input bias current - prevents loading of high-impedance sources like thermistors or photodiodes |
Applications
| Portable Power Monitoring | Handheld Instrument Threshold Detection |
|---|---|
Use Scenario: Detecting battery voltage drop below 3.0 V in a handheld multimeter to trigger low-battery warning. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel monitors upper limit, second monitors lower limit. Use Value: Rail-to-rail input allows precise 3.0 V reference comparison without op-amp buffering; micropower draw preserves meter runtime between calibrations. |
Use Scenario: Converting analog sensor output (e.g., pressure transducer) into digital logic-level alert when threshold exceeded. IC Role / Device Role / Timing Role: Single comparator acting as level translator - compares sensor output against adjustable reference voltage. Use Value: 0.02 pA input bias current avoids signal attenuation; push-pull output drives microcontroller GPIO directly without pull-up resistor. |
| RC-Based Timing Circuits | Zero-Crossing Detection in AC Meters |
Use Scenario: Generating fixed-duration pulses in a monostable multivibrator using R/C network and internal hysteresis. IC Role / Device Role / Timing Role: Comparator with internal positive feedback - forms relaxation oscillator with predictable tPLH/tPHL delay. Use Value: 420 ns propagation delay at 100 mV overdrive ensures sub-microsecond timing resolution; supply-independent current enables stable frequency over battery discharge. |
Use Scenario: Detecting AC line zero crossings in a smart energy meter to synchronize sampling or relay switching. IC Role / Device Role / Timing Role: Precision zero-crossing detector - compares scaled AC waveform against ground-referenced threshold. Use Value: Input common-mode range exceeding supplies prevents phase inversion during overvoltage transients; rail-to-rail output ensures clean logic transitions at 50/60 Hz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6772AIM | Open-drain output (vs. LMC6762AIM's push-pull); otherwise identical specs and pinout | Requires external pull-up for logic-high output; better suited for wired-OR bus applications | Select LMC6772AIM only if open-drain functionality is required; LMC6762AIM preferred for simplified single-supply logic interfacing |
| TLV3702IDR | Lower input offset (1.5 mV max vs. 15 mV), higher supply current (1.8 μA vs. 10 μA), same SOIC-8 package | Better precision for low-overdrive signal detection; less suitable for ultra-low-power battery use | Choose TLV3702IDR when accuracy outweighs power budget; LMC6762AIM remains optimal for >5-year battery life targets |
Compared with LMC6772AIM and TLV3702IDR, the LMC6762AIM uniquely balances ultra-low supply current (10 μA), rail-to-rail input beyond supplies, and push-pull output - making it the only option among the three that eliminates external components while sustaining multi-year operation on coin cells.
Availability
LMC6762AIM is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered alarms, and handheld metering systems requiring stable component supply across long production lifecycles.
Supply support for LMC6762AIM 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 specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and low-power design.
The LMC6762AIM belongs to TI's micropower comparator product line, engineered specifically for battery-constrained applications demanding rail-to-rail input operation, minimal quiescent current, and robust output drive without external components.
FAQ
What is the maximum supply voltage rating for the LMC6762AIM?
The LMC6762AIM has an absolute maximum supply voltage (V+ – V−) of 16 V. Its recommended operating range is 2.7 V to 15 V. Exceeding 16 V risks permanent damage, and continuous short-circuit operation above 12 V may impair reliability per TI's Absolute Maximum Ratings table. The LMC6762AIM must be operated within these limits to ensure functional integrity and longevity.
Does the LMC6762AIM require external pull-up resistors on its outputs?
No, the LMC6762AIM does not require external pull-up resistors because it features a push-pull output stage. Each output can actively drive high (VOH ≥ 4.6 V at 5 V/5 mA) and low (VOL ≤ 0.4 V at 5 V/5 mA), enabling direct connection to TTL or CMOS logic inputs. This eliminates BOM cost and layout area associated with pull-up resistors - a key advantage confirmed in the device description and typical application schematics for the LMC6762AIM.
What is the input offset voltage specification for the LMC6762AIM over temperature?
The LMC6762AIM has a maximum input offset voltage of 15 mV at TA = 25°C and TJ = −40°C to +85°C, with a typical drift of 2.0 μV/°C. This is specified in the 2.7 V and 5.0 V Electrical Characteristics tables. The LMC6762AIM maintains this limit across its full operating junction temperature range, ensuring predictable threshold behavior in thermal-varying environments such as handheld test equipment.
Can the LMC6762AIM operate reliably from a single 3.0 V lithium coin cell?
Yes, the LMC6762AIM is fully specified and tested at 2.7 V, making it compatible with aging 3.0 V lithium coin cells (which discharge to ~2.7 V). Its rail-to-rail input range extends 200 mV below V−, and its 10 μA max supply current ensures multi-year operation. The LMC6762AIM's guaranteed 2.7 V operation - explicitly stated in the Operating Ratings and 2.7 V Electrical Characteristics sections - confirms suitability for this use case.
Is the LMC6762AIM pin-compatible with the LMC6772AIM?
Yes, the LMC6762AIM and LMC6772AIM share identical pin assignments, SOIC-8 package dimensions, and electrical specifications except for output topology: LMC6762AIM uses push-pull outputs, while LMC6772AIM uses open-drain outputs. This pin-for-pin compatibility allows direct substitution when redesigning for active-high logic drive - but note that LMC6772AIM requires external pull-ups, whereas the LMC6762AIM does not.
LMC6762AIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 15V, ±1.35V ~ 7.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.04pA @ 5V
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 20µA
- Current - Quiescent (Max):
- 75dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 10µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LMC6762AIM FAQ
1.How can I place an order for LMC6762AIM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6762AIM 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 LMC6762AIM reliable?
The price and inventory of LMC6762AIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6762AIM is usually 5 days.
3.What payment methods are accepted for LMC6762AIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6762AIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6762AIM?
LMC6762AIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6762AIM 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 LMC6762AIM?
For technical support, including LMC6762AIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6762AIM requirements.
6.How does Aetrix verify that LMC6762AIM is sourced from the original manufacturer or authorized distributors?
All LMC6762AIM 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 LMC6762AIM meets industry standards.
7.What is the process for return or replacement of LMC6762AIM?
All LMC6762AIM units undergo pre-shipment inspection (PSI). If there is an issue with LMC6762AIM, 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 LMC6762AIM part is unused and in its original packaging.
Return procedure for LMC6762AIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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