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Texas Instruments LMC6772QMMX/S7002298
- Part No.:
- LMC6772QMMX/S7002298
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMC6772QMMX/S7002298.pdf
- Description:
- PROTOTYPE
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LMC6772QMMX/S7002298 from Texas Instruments is a dual micropower rail-to-rail input CMOS comparator with open-drain outputs, designed for ultra-low-power systems requiring supply current ≤20 μA per comparator, 2.7–15 V operation, and input common-mode voltage exceeding both rails - ideal for battery-powered metering and handheld electronics.
For engineers reviewing the LMC6772QMMX/S7002298 datasheet, LMC6772QMMX/S7002298 pinout, LMC6772QMMX/S7002298 application, or LMC6772QMMX/S7002298 equivalent, key selection criteria include its −40°C to +125°C AEC-Q qualified temperature range, 4 μs propagation delay at 2.7 V/100 mV overdrive, rail-to-rail input capability down to −0.2 V below V−, and open-drain output compatible with pull-up to 15 V independent of supply.
Technical Context
The LMC6772QMMX/S7002298 integrates two independent high-impedance CMOS comparators with rail-to-rail input stages enabling operation at 2.7 V while maintaining >75 dB CMRR and <15 mV max input offset voltage across −40°C to +125°C. Its open-drain NMOS output stage supports wired-OR logic and level-shifting up to 15 V.
It features built-in short-circuit protection (40 mA), 0.02 pA typical input bias current, and guaranteed operation with input voltages extending 200 mV beyond either supply rail - critical for single-supply sensor interface and power-monitoring applications where signals approach ground or V+.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V - enables direct use in 3 V microcontroller systems and 12 V industrial rails without level translation. |
| Supply Current (both comparators) | 20 μA max at 25°C - supports multi-year battery life in always-on monitoring circuits. |
| Input Offset Voltage | 13 mV max (LMC6772Q grade) - ensures reliable threshold detection in precision window comparators. |
| Propagation Delay | 4 μs at 2.7 V, 100 mV overdrive - provides deterministic timing for RC timers and one-shot multivibrators. |
| Input Common-Mode Range | Extends to −0.2 V below V− and 15.2 V above V− at 15 V supply - allows direct sensing of near-ground or rail-referenced signals. |
| Output Type | Open-drain NMOS - enables flexible pull-up to any voltage ≤15 V and wired-OR logic for alarm aggregation. |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 for automotive under-hood and industrial control environments. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm, 0.65 mm pitch, 1.0 mm max height, RoHS/Green compliant, moisture sensitivity level 1.
| 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 - rail-to-rail capable, 0.02 pA bias current. |
| 3 | IN+ A | Non-inverting input of Comparator A - same rail-to-rail and impedance specs as IN− A. |
| 4 | V− | Negative supply rail - also serves as reference for input common-mode and output low state. |
| 5 | IN+ B | Non-inverting input of Comparator B - electrically identical to IN+ A; fully independent channel. |
| 6 | IN− B | Inverting input of Comparator B - matched performance to IN− A; no crosstalk specified. |
| 7 | OUT B | Open-drain output of Comparator B - independently controllable; supports separate pull-up networks. |
| 8 | V+ | Positive supply rail - powers both comparators; supports operation from 2.7 V to 15 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Accepts signals from −0.2 V to V+ + 0.2 V - eliminates need for input biasing in single-supply sensor interfaces. |
| Ultra-low quiescent current | 20 μA max for both comparators - enables integration into energy-harvesting and coin-cell-powered designs. |
| Open-drain output architecture | Supports pull-up to 15 V regardless of V+ - simplifies level-shifting between 3.3 V logic and 12 V control buses. |
| AEC-Q100 qualified | Rated for −40°C to +125°C junction temperature - suitable for automotive engine control and ADAS power monitoring. |
| High input impedance | 0.02 pA typical input bias current - prevents loading of high-impedance sources like thermistors and photodiodes. |
Applications
| Battery Voltage Monitor | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff or alert. IC Role / Device Role / Timing Role: Dual comparator configured as window detector with hysteresis, comparing cell voltage against upper/lower thresholds. Use Value: Rail-to-rail inputs enable accurate sensing down to 0 V; 20 μA total supply current extends battery runtime without compromising response time. |
Use Scenario: Converting analog output from a 100 kΩ NTC thermistor into digital on/off signal for HVAC fan control. IC Role / Device Role / Timing Role: Single comparator comparing thermistor divider voltage against fixed reference; second comparator unused or for fault detection. Use Value: 0.02 pA input bias current avoids measurement error in high-Z sensor networks; −40°C to +125°C rating ensures reliability across ambient conditions. |
| Logic Level Shifter | RC Timer / One-Shot Multivibrator |
|
Use Scenario: Translating 1.8 V GPIO signals from an MCU to 5 V or 12 V control lines in motor driver modules. IC Role / Device Role / Timing Role: Comparator used as voltage translator with reference set at mid-supply; open-drain output pulled up to target logic rail. Use Value: Input common-mode range exceeding supplies allows direct connection of 1.8 V inputs while output pulls to 12 V - no level-shifter IC required. |
Use Scenario: Generating precise 100 ms power-on reset pulse using resistor-capacitor network. IC Role / Device Role / Timing Role: One comparator configured as monostable multivibrator; second comparator provides clean edge-triggered reset. Use Value: 4 μs propagation delay at 2.7 V ensures predictable timing accuracy; low supply current minimizes impact on system power budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6772AIMMX/NOPB | Same die, −40°C to +85°C grade, SOIC-8 or VSSOP-8 packaging - lower temperature rating and no AEC-Q qualification. | Suitable for commercial-grade portable instruments but not automotive or extended-temperature industrial use. | Select when cost sensitivity outweighs extended temperature or automotive qualification requirements. |
| TLV3702IDR | Lower supply current (1.8 μA/comparator), but narrower input common-mode range (to V+ − 1.5 V), no rail-to-rail input, and no AEC-Q100 rating. | Applicable in ultra-low-power IoT nodes where input signals stay within supply rails and temperature range is limited. | Choose only if sub-μA supply current is mandatory and rail-to-rail input is unnecessary. |
Compared with LMC6772AIMMX/NOPB, the LMC6772QMMX/S7002298 adds automotive-grade temperature range and qualification at minimal cost premium; versus TLV3702IDR, it trades higher quiescent current for guaranteed rail-to-rail input operation and robustness in harsh environments.
Availability
LMC6772QMMX/S7002298 is available at Aetrix Electronics and suitable for battery-powered handheld electronics, automotive power monitoring systems, and industrial sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMC6772QMMX/S7002298 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 over 50 years of innovation in precision analog ICs and automotive-qualified components.
The LMC6772QMMX/S7002298 belongs to TI's precision micropower comparator family, engineered specifically for low-voltage, low-power sensing and monitoring applications in automotive, industrial, and portable equipment where rail-to-rail input and AEC-Q100 compliance are essential.
FAQ
What is the maximum supply voltage for the LMC6772QMMX/S7002298?
The LMC6772QMMX/S7002298 supports a maximum supply voltage of 15 V between V+ and V− pins. Absolute maximum ratings specify 16 V, but operational specifications are guaranteed only up to 15 V. Exceeding 15 V may degrade long-term reliability or violate safe operating area limits, especially when sinking output current.
Does the LMC6772QMMX/S7002298 support true rail-to-rail input operation?
Yes, the LMC6772QMMX/S7002298 supports true rail-to-rail input operation: its common-mode voltage range extends to −0.2 V below V− and up to V+ + 0.2 V at 15 V supply, confirmed across −40°C to +125°C. This enables direct interfacing with sensors and signals referenced to ground or supply rails without external biasing.
Can the open-drain outputs of the LMC6772QMMX/S7002298 be pulled up to a voltage higher than V+?
Yes - the open-drain NMOS outputs of the LMC6772QMMX/S7002298 can be safely pulled up to any voltage ≤15 V, independent of the device's V+ supply. For example, with V+ = 3.3 V, OUT A or OUT B may be pulled up to 12 V, enabling seamless logic-level translation and wired-OR bus configurations.
Is the LMC6772QMMX/S7002298 pin-compatible with other variants in the LMC6772 family?
Yes - the LMC6772QMMX/S7002298 uses the VSSOP-8 (DGK) package and shares identical pinout with LMC6772AIMMX/NOPB and LMC6772BIMMX/NOPB. All variants have the same 8-pin topology: OUT A, IN− A, IN+ A, V−, IN+ B, IN− B, OUT B, V+. No PCB redesign is needed when upgrading from commercial to automotive-grade versions in the same package.
What is the typical input bias current of the LMC6772QMMX/S7002298?
The LMC6772QMMX/S7002298 exhibits a typical input bias current of 0.02 pA at 25°C, with guaranteed maximum of 0.04 pA across temperature. This ultra-low value minimizes voltage drop across high-impedance sources such as thermistors, photodiodes, or pH electrodes, preserving measurement accuracy without additional buffering.
LMC6772QMMX/S7002298 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- CMOS
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 15V
- :
- 10mV @ 15V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 45mA
- Current - Output (Typ):
- 20µA
- Current - Quiescent (Max):
- 82dB, 80dB PSRR
- CMRR, PSRR (Typ):
- 10µs (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C (TJ)
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-VSSOP
LMC6772QMMX/S7002298 FAQ
1.How can I place an order for LMC6772QMMX/S7002298 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6772QMMX/S7002298 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 LMC6772QMMX/S7002298 reliable?
The price and inventory of LMC6772QMMX/S7002298 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6772QMMX/S7002298 is usually 5 days.
3.What payment methods are accepted for LMC6772QMMX/S7002298?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6772QMMX/S7002298 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6772QMMX/S7002298?
LMC6772QMMX/S7002298 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6772QMMX/S7002298 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 LMC6772QMMX/S7002298?
For technical support, including LMC6772QMMX/S7002298 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6772QMMX/S7002298 requirements.
6.How does Aetrix verify that LMC6772QMMX/S7002298 is sourced from the original manufacturer or authorized distributors?
All LMC6772QMMX/S7002298 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 LMC6772QMMX/S7002298 meets industry standards.
7.What is the process for return or replacement of LMC6772QMMX/S7002298?
All LMC6772QMMX/S7002298 units undergo pre-shipment inspection (PSI). If there is an issue with LMC6772QMMX/S7002298, 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 LMC6772QMMX/S7002298 part is unused and in its original packaging.
Return procedure for LMC6772QMMX/S7002298:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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