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Texas Instruments LM6511IMX/NOPB
- Part No.:
- LM6511IMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6511IMX/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,052
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Product details
Overview
LM6511IMX/NOPB from Texas Instruments is a single high-speed voltage comparator with 180 ns response time, operating from +2.7V to +30V supply, featuring open-collector output compatible with +5V CMOS, +3V CMOS, and TTL logic families. It delivers low power consumption (<9.45 mW at 2.7V) and supports analog-digital interface circuits in portable and battery-powered systems.
For engineers reviewing the LM6511IMX/NOPB datasheet, LM6511IMX/NOPB pinout, LM6511IMX/NOPB application, or LM6511IMX/NOPB equivalent, key selection considerations include input offset voltage (5 mV max), strobe-enabled output disable capability, wide common-mode input range (0.5 V to V+ −1.25 V), and SOIC-8 packaging with Level-1 MSL rating.
Technical Context
The LM6511IMX/NOPB implements a rail-to-rail input stage with internal strobe control that disables the output when current (3–5 mA) is drawn from the STROBE pin. Its architecture supports level-shifting applications by isolating inputs/outputs from system ground and enabling wire-OR configurations.
It operates across −40°C to +85°C with guaranteed performance at 2.7V supply, exhibits 72 dB common-mode rejection, and maintains 40 V/mV large-signal voltage gain - enabling robust noise immunity and precise threshold detection in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Response Time | 180 ns - enables fast edge detection in timing-critical digital interfaces and pulse-width monitoring. |
| Supply Voltage Range | 2.7V to 30V - supports operation across 3V, 3.3V, and 5V systems without level translation. |
| Input Offset Voltage | 5 mV max - ensures accurate threshold comparison with ≤10 mV overdrive for reliable switching. |
| Output Type | Open-collector - allows flexible pull-up to any logic rail (e.g., 3.3V input → 5V output) and wire-OR bus implementation. |
| Strobe Control | Current-driven (3–5 mA) - provides active output disable without external logic, reducing standby current in duty-cycled systems. |
| Common-Mode Input Range | 0.5 V to V+ −1.25 V - accommodates inputs near ground or near supply, critical for universal level shifting. |
| Power Dissipation | 500 mW max - permits continuous operation in SOIC-8 package with θJA = 170°C/W under typical PCB layout. |
Pinout & Package
LM6511IMX/NOPB is housed in an 8-pin SOIC (Package D), 3.9 mm × 4.9 mm body, 1.75 mm max height, with standard JEDEC MS-012 AA outline and RoHS-compliant matte tin (SN) lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Differential input node; referenced to non-inverting input for threshold comparison. |
| 2 (IN+) | Non-inverting Input | Main signal input; accepts voltages from 0.5 V to V+ −1.25 V for valid operation. |
| 3 (V−) | Negative Supply | Ground or negative rail connection; supports single-supply (0V) or dual-supply operation. |
| 4 (STROBE) | Output Disable Control | Current-sink input; drawing 3–5 mA disables output, placing it in high-impedance state. |
| 5 (OUT) | Open-Collector Output | Active-low output requiring external pull-up; sinks up to 8 mA with 0.4 V saturation. |
| 6 (V+) | Positive Supply | Primary power rail; accepts 2.7V–30V; determines logic-high reference for pull-up network. |
| 7 (NC) | No Connect | Internally unused pin; must be left floating or tied to ground per layout best practice. |
| 8 (NC) | No Connect | Internally unused pin; no electrical function; avoid routing signals or vias beneath. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range Operation | Functions reliably from 2.7V to 30V, eliminating need for dedicated LDOs in multi-rail systems. |
| Strobe-Controlled Output Disable | Enables dynamic power gating via simple current source, reducing quiescent current during idle cycles. |
| Universal Logic-Level Translation | Supports bidirectional level shifting (e.g., 3V ↔ 5V) using external pull-up and input biasing per Figure 12. |
| Industry-Standard Pinout | Matches legacy single-comparator footprint (e.g., LM311), simplifying drop-in replacement in existing designs. |
| Robust Input Protection | Withstands ±30V differential input and 30V input-to-ground, enhancing reliability in noisy industrial environments. |
Applications
| Portable Power Monitoring | Digital Logic Interface |
|---|---|
Use Scenario: Detecting battery voltage thresholds in handheld medical devices to trigger low-power mode or shutdown. IC Role / Device Role / Timing Role: Comparator providing precise 3.0V/3.3V supply monitoring with sub-200 ns latency. Use Value: Enables rapid response to brown-out conditions while consuming <9.45 mW at 2.7V, extending battery life. | Use Scenario: Interfacing 3.3V microcontroller GPIO with legacy 5V peripheral control lines. IC Role / Device Role / Timing Role: Level-shifting comparator translating logic states between incompatible voltage domains. Use Value: Eliminates need for discrete MOSFET translators; open-collector output pulls to 5V rail with 0.4 V saturation. |
| Cellular Baseband Signal Detection | Industrial Sensor Threshold Alert |
Use Scenario: Identifying RF envelope peaks in GSM/GPRS front-end receivers for automatic gain control (AGC) triggering. IC Role / Device Role / Timing Role: High-speed comparator detecting fast-rising signal edges with minimal propagation delay. Use Value: 180 ns response ensures accurate timing alignment with baseband clock domains, avoiding missed triggers. | Use Scenario: Monitoring temperature sensor output in factory automation PLC modules to initiate thermal shutdown. IC Role / Device Role / Timing Role: Precision threshold detector comparing analog sensor voltage against fixed reference. Use Value: 5 mV max offset voltage guarantees consistent trip point across temperature, reducing calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM311DR | Slower response (200 ns typ), higher supply current (5.7 mA), wider offset (7 mV max), same SOIC-8 pinout. | Less suitable for ultra-low-power portable use but more tolerant of high-noise industrial transients. | Select LM311DR only if legacy design compatibility or higher ESD tolerance (2 kV HBM) is prioritized over speed and quiescent power. |
| TLV3011DBVR | Faster response (150 ns), lower power (1.2 µA IQ), rail-to-rail input, but push-pull output (no open-collector). | Cannot perform wire-OR or level-shifting without external components; requires redesign of pull-up network. | Choose TLV3011DBVR when lowest power and fastest response are critical, and output topology flexibility is not required. |
Compared with LM311DR and TLV3011DBVR, the LM6511IMX/NOPB uniquely balances 180 ns speed, <9.45 mW power at 2.7V, open-collector output, and strobe control - making it optimal for portable level-shifting and duty-cycled monitoring where both timing precision and power efficiency matter.
Availability
LM6511IMX/NOPB is available at Aetrix Electronics and suitable for portable equipment, cellular phones, and digital level-shifting applications requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for LM6511IMX/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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LM6511IMX/NOPB belongs to TI's precision analog comparator product line, designed specifically for low-voltage, high-speed analog-to-digital interface applications in battery-constrained and multi-rail systems.
FAQ
What is the maximum supply voltage for the LM6511IMX/NOPB?
The LM6511IMX/NOPB supports an absolute maximum supply voltage of +36V between V+ and V− pins, though its guaranteed operating range is 2.7V to 30V. Exceeding 30V may result in undefined behavior or reduced reliability, and operation above 36V risks permanent damage. Always refer to the Absolute Maximum Ratings table in the SNOS695C datasheet for safe design margins.
Does the LM6511IMX/NOPB support rail-to-rail input operation?
The LM6511IMX/NOPB does not support full rail-to-rail input - its specified common-mode input range is 0.5 V to V+ −1.25 V. This means the inputs cannot reliably operate within 0.5 V of ground or 1.25 V below V+. For true rail-to-rail input capability, consider alternatives like the TLV3011DBVR, but note that LM6511IMX/NOPB retains advantages in open-collector output and strobe control.
Can the LM6511IMX/NOPB be used as a level shifter between 3.3V and 5V logic?
Yes, the LM6511IMX/NOPB is explicitly recommended for universal logic-level shifting, as shown in Figure 12 of the SNOS695C datasheet. Its open-collector output allows pull-up to 5V while accepting 3.3V input signals, and its wide input common-mode range (0.5 V to V+ −1.25 V) supports proper biasing. The LM6511IMX/NOPB achieves this without additional active components, simplifying interface design.
What is the purpose of the STROBE pin on the LM6511IMX/NOPB?
On the LM6511IMX/NOPB, the STROBE pin (Pin 4) is a current-sink input that disables the output when 3–5 mA is drawn from it. This places the open-collector output in high-impedance state, effectively gating the comparator's response without changing input conditions. It enables dynamic power management in battery-operated systems and eliminates need for external enable logic.
Is the LM6511IMX/NOPB pin-compatible with other comparators in SOIC-8 packages?
The LM6511IMX/NOPB uses the industry-standard single-comparator pinout (per Figure 1), matching LM311 and similar devices. Pins 1–3, 5–6 align functionally (IN−, IN+, V−, OUT, V+), and NC pins are in positions 7–8. However, the STROBE pin (Pin 4) is unique to LM6511IMX/NOPB - substituting it for LM311 requires leaving Pin 4 unconnected or grounding it via current-limiting resistor to avoid malfunction.
LM6511IMX/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:
- 1
- Output Type:
- CMOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 30V
- :
- 5mV @ 2.7V
- Voltage - Input Offset (Max):
- 0.13µA @ 2.7V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 3.5mA
- Current - Quiescent (Max):
- 72dB CMRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LM6511IMX/NOPB FAQ
1.How can I place an order for LM6511IMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6511IMX/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 LM6511IMX/NOPB reliable?
The price and inventory of LM6511IMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6511IMX/NOPB is usually 5 days.
3.What payment methods are accepted for LM6511IMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6511IMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6511IMX/NOPB?
LM6511IMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6511IMX/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 LM6511IMX/NOPB?
For technical support, including LM6511IMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6511IMX/NOPB requirements.
6.How does Aetrix verify that LM6511IMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6511IMX/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 LM6511IMX/NOPB meets industry standards.
7.What is the process for return or replacement of LM6511IMX/NOPB?
All LM6511IMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6511IMX/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 LM6511IMX/NOPB part is unused and in its original packaging.
Return procedure for LM6511IMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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