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Texas Instruments LMC6772AIM/NOPB
- Part No.:
- LMC6772AIM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6772AIM/NOPB.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,692
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Product details
Overview
LMC6772AIM/NOPB from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with open-drain output, designed for ultra-low-power sensing and threshold detection in battery-operated systems. It delivers 10 μA max supply current per comparator, operates from 2.7 V to 15 V, features rail-to-rail input common-mode range exceeding both supply rails, and provides 420 ns propagation delay at 5 V with 100 mV overdrive - enabling precise voltage monitoring in portable metering and handheld electronics.
For engineers reviewing the LMC6772AIM/NOPB datasheet, LMC6772AIM/NOPB pinout, LMC6772AIM/NOPB application, or LMC6772AIM/NOPB equivalent, key selection considerations include its micropower operation, open-drain flexibility for wired-OR logic and level-shifting, rail-to-rail input capability for single-supply sensor interfacing, and guaranteed −40°C to +85°C industrial temperature range.
Technical Context
The LMC6772AIM/NOPB integrates two independent high-impedance CMOS comparators with input stages optimized for rail-to-rail common-mode operation down to 2.7 V. Its open-drain NMOS output stage supports pull-up to any voltage ≤15 V, independent of V+, enabling interoperability across mixed-voltage domains.
Each comparator features 0.02 pA typical input bias current, 75 dB minimum CMRR, and 80 dB PSRR - ensuring stable threshold detection despite supply ripple or ground bounce. Propagation delay remains under 450 ns across full temperature and supply range, with short-circuit protection limiting output sink current to 40 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 10 μA max per comparator - enables multi-year battery life in always-on monitoring circuits. |
| Supply Voltage Range | 2.7 V to 15 V - supports direct operation from single Li-ion, 3.3 V logic, or 12 V industrial rails. |
| Input Common-Mode Range | Exceeds V− by 0.2 V and V+ by 0.3 V - allows direct sensing of signals below ground or above V+ without clamping diodes. |
| Propagation Delay | 420 ns (tPLH) at 5 V, 100 mV overdrive - ensures timely response in RC timers and pulse-width discriminators. |
| Output Type | Open-drain NMOS - permits wired-OR outputs and flexible level translation up to 15 V pull-up. |
| Input Offset Voltage | 5 mV max (AI grade) - sufficient for coarse threshold detection in alarm and window comparator applications. |
| Input Bias Current | 0.02 pA typical - minimizes loading on high-impedance sensors like thermistors or photodiodes. |
Pinout & Package
LMC6772AIM/NOPB is packaged in an 8-pin SOIC (D) package measuring 3.91 mm × 4.90 mm, with standard JEDEC MS-012AC footprint and RoHS-compliant NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Open-drain output of Comparator A - requires external pull-up; sinks up to 40 mA. |
| 2 | IN− A | Inverting input of Comparator A - high-impedance CMOS node, rail-to-rail capable. |
| 3 | IN+ A | Non-inverting input of Comparator A - same rail-to-rail range and impedance as IN− A. |
| 4 | V− | Negative supply terminal - referenced to system ground in single-supply operation. |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically identical to IN+ A. |
| 6 | IN− B | Inverting input of Comparator B - matches IN− A in performance and range. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; supports wired-OR with OUT A. |
| 8 | V+ | Positive supply terminal - accepts 2.7 V to 15 V; powers both comparators and internal bias circuitry. |
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 level-shifting resistors in single-supply sensor interfaces. |
| Ultra-low quiescent current | 10 μA max per comparator - reduces standby power in battery-backed systems such as smart meters and wearables. |
| Open-drain output architecture | Enables logic-level translation between 1.8 V, 3.3 V, and 5 V domains using a single external pull-up resistor. |
| Wide supply voltage support | 2.7 V to 15 V operation - accommodates diverse power architectures without redesigning bias networks. |
| Short-circuit protected output | 40 mA current limit - prevents latch-up or thermal damage during accidental output shorts to V+ or ground. |
Applications
| Portable Power Monitoring | Handheld Sensor Interface |
|---|---|
|
Use Scenario: Real-time battery voltage supervision in medical glucose meters and portable test equipment. IC Role / Device Role / Timing Role: Dual comparator configured as window detector to trigger low-battery alert and overvoltage shutdown. Use Value: Rail-to-rail input allows direct measurement from 0 V to full battery voltage; 10 μA supply current extends operational runtime between charges. |
Use Scenario: Threshold detection for analog sensor outputs in handheld environmental monitors. IC Role / Device Role / Timing Role: Comparator A compares thermistor voltage to fixed reference; Comparator B detects humidity sensor crossing preset threshold. Use Value: 0.02 pA input bias avoids signal loading on high-Z sensor elements; open-drain outputs interface directly to microcontroller GPIOs. |
| RC-Based Timing Circuits | Alarm & Monitoring Systems |
|
Use Scenario: Precision one-shot multivibrator in programmable logic controllers for timed actuation pulses. IC Role / Device Role / Timing Role: Configured as monostable multivibrator using external R-C network and internal hysteresis. Use Value: 420 ns propagation delay ensures accurate pulse width generation; wide supply range simplifies integration into legacy 12 V control panels. |
Use Scenario: Overtemperature and smoke detection in building security panels with battery backup. IC Role / Device Role / Timing Role: Dual comparator implements redundant window comparator for sensor fault detection and alarm latching. Use Value: Guaranteed operation from −40°C to +85°C ensures reliability in unconditioned enclosures; open-drain outputs drive LED indicators and relay drivers simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6762AIM/NOPB | Push-pull output stage instead of open-drain; otherwise identical specs and pinout. | Eliminates need for external pull-up but lacks wired-OR capability and level-shifting flexibility. | Select when driving CMOS loads directly without external components; avoid when interfacing mixed-voltage systems. |
| TLV3702IDR | Lower 800 nA supply current, but narrower 2.7 V–16 V supply range and no guaranteed rail-to-rail input beyond V+. | Better suited for ultra-long-life IoT nodes; less robust for wide-input-swing sensor conditioning. | Prefer for energy-harvesting applications where sub-μA current dominates; verify input range compatibility before substitution. |
Compared with LMC6772AIM/NOPB, LMC6762AIM/NOPB trades open-drain versatility for lower component count in single-rail systems, while TLV3702IDR offers superior quiescent current at the expense of input range margin and output configurability - making LMC6772AIM/NOPB optimal for mixed-voltage, sensor-front-end, and timing-critical designs.
Availability
LMC6772AIM/NOPB is available at Aetrix Electronics and suitable for portable medical devices, battery-powered metering systems, and industrial handheld electronics requiring stable component supply and long-term production continuity.
Supply support for LMC6772AIM/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 deep expertise in precision analog ICs and low-power design.
The LMC6772AIM/NOPB belongs to TI's micropower comparator product line, engineered specifically for battery-constrained applications demanding rail-to-rail input operation, open-drain flexibility, and guaranteed industrial temperature performance.
FAQ
What is the maximum supply voltage rating for LMC6772AIM/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMC6772AIM/NOPB is 16 V, with recommended operating range from 2.7 V to 15 V. Exceeding 16 V risks permanent device damage. The datasheet specifies that continuous operation above 12 V with output shorted to V+ may adversely affect reliability, so proper output protection is advised in high-voltage applications involving LMC6772AIM/NOPB.
Does LMC6772AIM/NOPB support true rail-to-rail input operation?
Yes, LMC6772AIM/NOPB supports rail-to-rail input common-mode voltage range exceeding both supply rails: it operates with inputs as low as 0.2 V below V− and as high as 0.3 V above V+ at room temperature. This capability is verified across the full −40°C to +85°C operating range and enables direct interfacing with sensors whose outputs swing near ground or V+ without external level-shifting circuitry - a core design feature of LMC6772AIM/NOPB.
Can LMC6772AIM/NOPB outputs be wired together for OR logic?
Yes, the open-drain NMOS outputs of LMC6772AIM/NOPB (pins 1 and 7) are explicitly designed for wired-OR configurations. When multiple outputs share a common pull-up resistor, the combined node goes low if any comparator asserts - enabling simple priority encoding or alarm aggregation. This functionality is intrinsic to LMC6772AIM/NOPB's architecture and does not require additional external logic or isolation components.
What is the guaranteed input offset voltage for LMC6772AIM/NOPB?
The LMC6772AIM/NOPB has a maximum input offset voltage of 5 mV over the full −40°C to +85°C temperature range, as specified for the AI grade. This value is tested and ensured per TI's production test flow. While typical offset is 3 mV, designers must use the 5 mV limit for worst-case error budgeting in precision threshold applications involving LMC6772AIM/NOPB.
Is LMC6772AIM/NOPB suitable for automotive applications?
No, LMC6772AIM/NOPB is rated for −40°C to +85°C and is designated as a catalog-grade part. For automotive use, TI offers the LMC6772QMM/NOPB variant, which is AEC-Q200 qualified and specified for −40°C to +125°C operation. The LMC6772AIM/NOPB lacks automotive qualification testing and should not be deployed in safety-critical or engine-compartment environments where LMC6772QMM/NOPB is required.
LMC6772AIM/NOPB 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:
- 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
LMC6772AIM/NOPB FAQ
1.How can I place an order for LMC6772AIM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6772AIM/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 LMC6772AIM/NOPB reliable?
The price and inventory of LMC6772AIM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6772AIM/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6772AIM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6772AIM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6772AIM/NOPB?
LMC6772AIM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6772AIM/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 LMC6772AIM/NOPB?
For technical support, including LMC6772AIM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6772AIM/NOPB requirements.
6.How does Aetrix verify that LMC6772AIM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6772AIM/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 LMC6772AIM/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6772AIM/NOPB?
All LMC6772AIM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6772AIM/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 LMC6772AIM/NOPB part is unused and in its original packaging.
Return procedure for LMC6772AIM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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