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Texas Instruments LMC6762AIMX
- Part No.:
- LMC6762AIMX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6762AIMX.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,615
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Product details
Overview
LMC6762AIMX from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with push-pull output, designed for ultra-low-power sensing and threshold-detection circuits in battery-powered systems. It delivers 10 μA max supply current per channel, operates from 2.7V to 15V, and achieves rail-to-rail input common-mode range exceeding both supplies - enabling direct interface with sensors near ground or V+. Its 420 ns propagation delay (100 mV overdrive, V+ = 5 V) and 100 mV output swing margin support fast, low-voltage logic interfacing without pull-up resistors.
For engineers reviewing the LMC6762AIMX datasheet, LMC6762AIMX pinout, LMC6762AIMX application, or LMC6762AIMX equivalent, key selection criteria include guaranteed operation at 2.7 V, push-pull output architecture eliminating external pull-ups, sub-1 μA input bias current, rail-to-rail input beyond supplies, and thermal stability across −40°C to +85°C junction temperature.
Technical Context
The LMC6762AIMX implements two independent high-impedance CMOS comparators sharing a single SOIC-8 package. Each channel features an input stage with 0.02 pA typical input current and 75 dB CMRR, enabling precision detection of millivolt-level sensor signals without loading. Its rail-to-rail input extends 200 mV beyond V− and V+ at all supply voltages (2.7 V, 5 V, 15 V), verified by ΔVOS/ΔVCM characterization.
The push-pull output drives logic directly: VOH = 4.6 V min (ILOAD = 5 mA, V+ = 5 V), VOL = 0.4 V max under same conditions, with short-circuit protection limiting sink/source to ±30 mA. Propagation delay is load- and overdrive-dependent - 420 ns (tPLH) at 100 mV overdrive, CL = 50 pF - and remains stable across temperature (−40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 12 μA typical / 20 μA max per channel - enables multi-year battery life in always-on monitoring circuits. |
| Input Offset Voltage | 5 mV max (LMC6762AI grade) - ensures reliable threshold detection with ≤10 mV hysteresis design margin. |
| Input Common-Mode Range | Exceeds V− by 0.3 V and V+ by 0.3 V - allows direct sensing of signals below ground or above V+ without level-shifting. |
| Output Type | Push-pull (no pull-up required) - reduces BOM count and PCB area in portable logic interface applications. |
| Propagation Delay | 420 ns (tPLH, 100 mV overdrive, V+ = 5 V) - supports kHz-range timing functions like RC oscillators and one-shot multivibrators. |
| Operating Temperature | −40°C to +85°C junction - qualified for industrial handheld and metering environments without derating. |
| ESD Tolerance | 2 kV HBM - meets IEC 61000-4-2 Level 2 for robust handling in assembly and field service. |
Pinout & Package
LMC6762AIMX is housed in an 8-pin SOIC (D0008A) package with 1.27 mm lead pitch, 3.91 mm body width, and 1.75 mm max height. Pin 1 identifier is marked in the top-left corner of the package, with leads conforming to JEDEC MS-012AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comparator A) | High-impedance node (0.02 pA IB) for reference or feedback path in window/zero-crossing detectors. |
| 2 | Non-Inverting Input (Comparator A) | Accepts rail-to-rail signals up to V+ + 0.3 V - enables direct connection to unbuffered sensors or DAC outputs. |
| 3 | Output (Comparator A) | Push-pull CMOS output driving TTL/CMOS loads directly; no external pull-up needed for logic-level compatibility. |
| 4 | V− (Ground/Ref) | Reference return for both comparators; supports single-supply (0 V) or split-supply (±V) configurations. |
| 5 | Non-Inverting Input (Comparator B) | Independent high-Z input identical to Pin 2 - used for dual-threshold or differential sensing architectures. |
| 6 | Inverting Input (Comparator B) | Matches Pin 1 functionality; enables mirrored signal conditioning paths in compact space-constrained designs. |
| 7 | Output (Comparator B) | Independent push-pull output; allows asynchronous event detection (e.g., alarm + status) on same die. |
| 8 | V+ | Wide-range supply input (2.7–15 V); quiescent current independent of voltage - simplifies power domain partitioning. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supplies | Valid operation with inputs 200 mV below V− or above V+ - eliminates need for external clamping diodes in overvoltage-tolerant sensor interfaces. |
| Ultra-low supply current | 12 μA typical per channel at 5 V - enables >10-year battery life in coin-cell-powered IoT endpoints with periodic wake-up. |
| Push-pull output architecture | Direct drive of 5 mA logic loads without pull-up resistors - reduces component count and improves rise/fall time consistency. |
| Guaranteed 2.7 V operation | Full specification compliance at minimum 2.7 V supply - ensures interoperability with Li-ion, Li-SOCl₂, and 3 V microcontroller I/O domains. |
| Low input bias current | 0.02 pA typical - preserves accuracy in high-impedance source applications (e.g., pH electrodes, photodiode preamps). |
Applications
| Battery-Powered Sensor Monitoring | Portable Device Power Management |
|---|---|
|
Use Scenario: Continuous voltage/current monitoring in handheld multimeters or environmental data loggers powered by CR2032 cells. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous low-battery alert (VBAT < 2.8 V) and overvoltage cutoff (VBAT > 3.6 V) with hysteresis. Use Value: 12 μA total quiescent current extends battery life to >3 years; rail-to-rail inputs eliminate level-shifters for direct ADC reference comparison. |
Use Scenario: Adaptive backlight dimming and USB OTG power negotiation in smartphones and tablets. IC Role / Device Role / Timing Role: Comparator A detects ambient light via photodiode; Comparator B monitors VBUS presence and overcurrent flags. Use Value: Push-pull outputs interface directly with AP GPIOs; 420 ns delay enables real-time response to touch-screen wake events. |
| Industrial Metering Systems | RC-Based Timing Circuits |
|
Use Scenario: Tamper detection and phase-loss monitoring in smart electricity meters operating from 3.3 V rails. IC Role / Device Role / Timing Role: Compares isolated current-sense transformer outputs against precision references to flag neutral wire disconnection. Use Value: 75 dB CMRR rejects common-mode noise from switching power supplies; −40°C to +85°C rating ensures field reliability. |
Use Scenario: Programmable one-shot delays and square-wave generation in programmable logic controllers and test equipment. IC Role / Device Role / Timing Role: Configured as astable multivibrator using external R/C network; dual channels enable independent timing for set/reset functions. Use Value: Propagation delay stability across 2.7–15 V allows consistent timing accuracy regardless of supply droop or battery aging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6772AIMX | Open-drain output (requires external pull-up); otherwise identical specs including 10 μA IS and rail-to-rail input. | Suitable where wired-OR logic or level translation to higher voltage domains (e.g., 3.3 V → 5 V) is required. | Select LMC6772AIMX only if open-drain functionality is explicitly needed; LMC6762AIMX is preferred for reduced BOM and faster rise times. |
| TLV3702IDR | Higher supply current (1.8 μA typical per channel), lower offset (1.5 mV max), but narrower supply range (2.7–16 V) and no guaranteed rail-to-rail input beyond supplies. | Better for precision thresholding where offset dominates error budget; less suitable for signals near V−/V+. | Choose TLV3702IDR when offset voltage is critical and input signals stay within rails; retain LMC6762AIMX for true beyond-the-rails sensing. |
Compared with LMC6772AIMX and TLV3702IDR, the LMC6762AIMX uniquely combines push-pull output, guaranteed rail-to-rail input beyond supplies, and 10 μA max supply current - making it optimal for space- and power-constrained designs requiring direct logic interfacing and wide dynamic input range.
Availability
LMC6762AIMX is available at Aetrix Electronics and suitable for battery-powered sensor monitoring, portable device power management, and industrial metering systems requiring stable component supply with long-term lifecycle assurance.
Supply support for LMC6762AIMX 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 chain components.
The LMC6762AIMX belongs to TI's micropower comparator product line, engineered specifically for ultra-low-power threshold detection in portable, battery-operated, and energy-harvesting systems where supply current and input voltage range are critical constraints.
FAQ
What is the maximum supply voltage rating for the LMC6762AIMX?
The LMC6762AIMX has an absolute maximum supply voltage (V+ – V−) of 16 V. Its recommended operating range is 2.7 V to 15 V, with full electrical specifications guaranteed across this span. Operation at 15 V is validated per datasheet Section 8, including output swing, propagation delay, and input common-mode range - ensuring safe and specified performance at the upper limit.
Does the LMC6762AIMX support true rail-to-rail input operation beyond the supply rails?
Yes, the LMC6762AIMX supports input voltages exceeding both V− and V+ by up to 0.3 V - confirmed in Absolute Maximum Ratings and validated in Section 11.1. At V+ = 5 V, inputs may reach −0.3 V to +5.3 V while maintaining CMRR > 55 dB and avoiding phase inversion, enabling direct interface with transducers whose outputs swing below ground or above V+.
What is the output configuration of the LMC6762AIMX, and how does it differ from open-drain comparators?
The LMC6762AIMX features a push-pull CMOS output stage that actively drives both high and low states - unlike open-drain comparators such as the LMC6772AIMX, which require external pull-up resistors. This eliminates BOM cost and layout area while improving rise/fall time consistency and reducing susceptibility to noise on the output line, especially in high-impedance routing scenarios.
Can the LMC6762AIMX operate reliably at 2.7 V supply voltage?
Yes, the LMC6762AIMX is fully specified and tested at 2.7 V, including propagation delay (tPLH = 420 ns, tPHL = 450 ns), input offset voltage (5 mV max), and rail-to-rail input common-mode range. Its quiescent current remains stable across 2.7–15 V, making it ideal for 3 V digital systems and single-cell lithium applications where supply headroom is minimal.
What is the thermal operating range and package type of the LMC6762AIMX?
The LMC6762AIMX is rated for −40°C to +85°C junction temperature and is supplied in an 8-pin SOIC (D0008A) package with NIPDAU lead finish, RoHS-compliant, and MSL Level-1 (260°C peak reflow). The package drawing matches JEDEC MS-012AA, and thermal resistance θJA is 136°C/W - enabling use in sealed enclosures without forced airflow when power dissipation remains below 15 mW.
LMC6762AIMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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
LMC6762AIMX FAQ
1.How can I place an order for LMC6762AIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6762AIMX 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 LMC6762AIMX reliable?
The price and inventory of LMC6762AIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6762AIMX is usually 5 days.
3.What payment methods are accepted for LMC6762AIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6762AIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6762AIMX?
LMC6762AIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6762AIMX 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 LMC6762AIMX?
For technical support, including LMC6762AIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6762AIMX requirements.
6.How does Aetrix verify that LMC6762AIMX is sourced from the original manufacturer or authorized distributors?
All LMC6762AIMX 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 LMC6762AIMX meets industry standards.
7.What is the process for return or replacement of LMC6762AIMX?
All LMC6762AIMX units undergo pre-shipment inspection (PSI). If there is an issue with LMC6762AIMX, 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 LMC6762AIMX part is unused and in its original packaging.
Return procedure for LMC6762AIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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