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Texas Instruments LMC6772AIMX/NOPB
- Part No.:
- LMC6772AIMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6772AIMX/NOPB.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LMC6772AIMX/NOPB from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with open-drain outputs, designed for ultra-low-power sensing and threshold detection in battery-operated systems. It delivers 10 μA max supply current per channel, operates from 2.7 V to 15 V, supports rail-to-rail input common-mode voltage range (exceeding both rails), and achieves 420 ns propagation delay at 5 V with 100 mV overdrive - enabling precise, low-energy voltage monitoring in portable instrumentation.
For engineers reviewing the LMC6772AIMX/NOPB datasheet, LMC6772AIMX/NOPB pinout, LMC6772AIMX/NOPB application, or LMC6772AIMX/NOPB equivalent, key selection considerations include its guaranteed operation down to 2.7 V, open-drain output flexibility for wired-OR logic and level-shifting, −40°C to +85°C industrial temperature rating, and SOIC-8 package compatibility with legacy PCB layouts.
Technical Context
The LMC6772AIMX/NOPB integrates two independent high-impedance comparators with rail-to-rail input stages capable of accepting signals beyond V− and V+, enabling direct interface with sensors and reference sources near supply rails. Its CMOS input stage draws only 0.02 pA typical input bias current and maintains 75 dB common-mode rejection across 2.7–15 V supplies.
Each comparator features an open-drain NMOS output stage rated for 40 mA short-circuit protection and compatible with pull-up voltages up to 15 V - decoupling output logic levels from the device's own supply. Propagation delay remains stable across temperature (−40°C to +85°C) and supply voltage, with tPLH = 420 ns (typ.) at 5 V/100 mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V - supports single-supply operation in 3 V, 5 V, and 12 V systems without level-shifting circuitry. |
| Max Supply Current | 10 μA per channel - enables multi-year battery life in always-on monitoring applications like smoke detectors or IoT sensor nodes. |
| Input Common-Mode Range | Exceeds V− by 0.2 V and V+ by 0.3 V - allows direct sensing of ground-referenced or rail-referenced signals without external biasing. |
| Propagation Delay | 420 ns (tPLH) at 5 V, 100 mV overdrive - provides deterministic timing for RC timers, zero-crossing detection, and pulse-width measurement. |
| Output Type | Open-drain NMOS - enables wired-OR configurations, flexible pull-up to any voltage ≤15 V, and bidirectional logic-level translation. |
| Input Offset Voltage | 5 mV max (LMC6772AI grade) - ensures accurate threshold detection in precision window comparators and alarm circuits. |
| ESD Tolerance | 1.5 kV HBM on output pins - improves robustness in handheld and field-deployable equipment handling. |
Pinout & Package
LMC6772AIMX/NOPB is housed in an 8-pin SOIC (D) package measuring 3.91 mm × 4.90 mm, with standard JEDEC MS-012AC footprint and RoHS-compliant NiPdAu/Sn lead finish (Level-1 MSL).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up; sinks up to 40 mA; compatible with 15 V logic rails. |
| 2 | IN− A | Inverting input of Comparator A - high-impedance CMOS node (0.02 pA bias); accepts voltages beyond V−/V+. |
| 3 | IN+ A | Non-inverting input of Comparator A - identical electrical characteristics to IN− A; enables differential or single-ended sensing. |
| 4 | V− | Negative supply terminal - serves as ground reference in single-supply operation; also used for ESD clamping and bias control. |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically isolated from Channel A; supports independent reference configuration. |
| 6 | IN− B | Inverting input of Comparator B - matches Channel A performance; enables dual-threshold or hysteresis implementation. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; supports OR'ing with OUT A or separate load driving. |
| 8 | V+ | Positive supply terminal - powers both comparators; regulates internal bias; supports wide 2.7–15 V operating range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs 0.2 V below V− and 0.3 V above V+ - eliminates need for input resistive dividers or level shifters in single-supply designs. |
| Ultra-low quiescent current | 10 μA max per channel at 25°C - reduces system standby power by >90% versus standard comparators, critical for coin-cell-powered devices. |
| Open-drain output architecture | Supports pull-up to any voltage ≤15 V - enables seamless interfacing between 1.8 V microcontrollers and 5 V/12 V peripherals or displays. |
| Guaranteed operation at 2.7 V | Full functionality including rail-to-rail input and 420 ns propagation delay - ensures reliable wake-up and monitoring in aging or cold-temperature batteries. |
| High input impedance & low offset drift | 0.02 pA input bias current and 2.0 μV/°C max TCVOS - preserves accuracy in high-source-impedance sensor interfaces (e.g., thermistors, photodiodes). |
Applications
| Battery-Powered Voltage Monitor | Logic-Level Translation |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during discharge to trigger low-battery warning before cutoff. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel monitors upper threshold (4.2 V), the other lower (3.0 V) using resistor-divider references. Use Value: 10 μA total supply current extends system runtime; rail-to-rail inputs directly sense cell voltage without bias network; open-drain outputs drive LED or MCU interrupt pin. |
Use Scenario: Interfacing a 3.3 V microcontroller GPIO to a 5 V I²C bus or display enable line. IC Role / Device Role / Timing Role: Single comparator acting as unidirectional level shifter - input driven by 3.3 V logic, output pulled to 5 V via external resistor. Use Value: Eliminates need for dedicated level-shifter ICs; 420 ns delay ensures timing compliance with 100 kHz I²C; SOIC-8 footprint simplifies layout reuse. |
| RC-Based Precision Timer | Alarm Threshold Detector |
|
Use Scenario: Generating fixed-duration pulses in portable medical devices (e.g., nebulizer duty cycle control). IC Role / Device Role / Timing Role: One-shot multivibrator using comparator hysteresis and external RC network - LMC6772AIMX/NOPB defines trigger and reset thresholds. Use Value: Propagation delay stability (±10% over −40°C to +85°C) ensures consistent pulse width; low supply current minimizes timer circuit power overhead. |
Use Scenario: Detecting smoke sensor output crossing alarm threshold in battery-backed residential fire alarms. IC Role / Device Role / Timing Role: Comparator comparing analog sensor signal against precision reference - output drives buzzer driver or wireless alert transmitter. Use Value: 5 mV max input offset ensures <±10 mV detection error; 1.5 kV HBM ESD rating withstands handling in field-installation environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6762AIMX/NOPB | Push-pull output (vs. open-drain); otherwise identical specs (10 μA, rail-to-rail input, 2.7–15 V). | Eliminates need for external pull-up but cannot be wired-OR'd or level-shifted beyond V+. | Select when driving CMOS loads directly and no multi-output logic combining is required. |
| TLV3702IDR | Lower supply current (1.8 μA/ch), wider temp range (−40°C to +125°C), but narrower supply (2.7–16 V) and no guaranteed rail-to-rail input beyond rails. | Better for ultra-long-life applications (e.g., 10-year utility meters); less suitable for ground-referenced sensor inputs requiring true rail exceedance. | Select when lowest possible power dominates and input common-mode margin beyond rails is not required. |
Compared with LMC6772AIMX/NOPB, LMC6762AIMX/NOPB trades output flexibility for simplified drive, while TLV3702IDR prioritizes sub-2 μA power at the expense of guaranteed rail-exceeding input range - making LMC6772AIMX/NOPB optimal for battery-powered systems needing both ultra-low power and robust single-supply sensor interfacing.
Availability
LMC6772AIMX/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial sensor monitoring requiring stable component supply and long-term design continuity.
Supply support for LMC6772AIMX/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 specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and low-power design.
The LMC6772AIMX/NOPB belongs to TI's micropower comparator product line, engineered specifically for energy-constrained applications where rail-to-rail input capability, open-drain flexibility, and guaranteed 2.7 V operation are essential - such as wearables, remote sensors, and portable test equipment.
FAQ
What is the maximum supply voltage for LMC6772AIMX/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMC6772AIMX/NOPB is 16 V, with recommended continuous operation up to 15 V. Exceeding 16 V risks permanent damage. The device is fully specified from 2.7 V to 15 V, ensuring reliable performance across battery chemistries including alkaline, Li-ion, and NiMH.
Does LMC6772AIMX/NOPB support true rail-to-rail input operation?
Yes - LMC6772AIMX/NOPB guarantees input common-mode voltage range exceeding both supply rails: down to V− − 0.2 V and up to V+ + 0.3 V at 25°C (ensured over full temperature range). This enables direct connection of ground-referenced sensors or signals near V+ without external bias networks.
Can LMC6772AIMX/NOPB outputs drive a 12 V load?
Yes - the open-drain NMOS outputs of LMC6772AIMX/NOPB can be pulled up to any voltage ≤15 V, independent of the device's own supply. When V+ = 3.3 V, OUT A or OUT B can still switch a 12 V relay driver or LED string using an external 12 V pull-up resistor.
What is the input offset voltage specification for LMC6772AIMX/NOPB?
LMC6772AIMX/NOPB (AI grade) has a maximum input offset voltage of 5 mV at 25°C, with typical value of 3 mV. This specification is ensured across the full operating temperature range (−40°C to +85°C) and supply voltages (2.7–15 V), supporting accurate threshold detection in precision monitoring circuits.
Is LMC6772AIMX/NOPB pin-compatible with other comparators in the LMC67xx family?
LMC6772AIMX/NOPB shares the same SOIC-8 pinout with LMC6762AIMX/NOPB (push-pull version) and LMC6772BIMX/NOPB (higher offset, same package), enabling drop-in replacement where output topology or offset tolerance permits. Pin functions are identical; only output stage and AC specs differ.
LMC6772AIMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- 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
LMC6772AIMX/NOPB FAQ
1.How can I place an order for LMC6772AIMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6772AIMX/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 LMC6772AIMX/NOPB reliable?
The price and inventory of LMC6772AIMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6772AIMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6772AIMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6772AIMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6772AIMX/NOPB?
LMC6772AIMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6772AIMX/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 LMC6772AIMX/NOPB?
For technical support, including LMC6772AIMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6772AIMX/NOPB requirements.
6.How does Aetrix verify that LMC6772AIMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6772AIMX/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 LMC6772AIMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6772AIMX/NOPB?
All LMC6772AIMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6772AIMX/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 LMC6772AIMX/NOPB part is unused and in its original packaging.
Return procedure for LMC6772AIMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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