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Texas Instruments LM6511IMX
- Part No.:
- LM6511IMX
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6511IMX.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,623
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Product details
Overview
LM6511IMX from Texas Instruments is a single high-speed voltage comparator with 180 ns propagation delay, operating from 2.7V to 30V supply, featuring open-collector output and strobe control. It delivers low power consumption (<9.45 mW at 2.7V), ±30V differential input range, and functions as an analog-to-digital interface in portable 3V systems.
For engineers reviewing the LM6511IMX datasheet, LM6511IMX pinout, LM6511IMX application, or LM6511IMX equivalent, this device is selected for fast level-shifting, battery-powered comparators, and mixed-voltage logic interfacing where supply headroom and response time are critical.
Technical Context
The LM6511IMX uses a bipolar input stage enabling rail-to-rail input common-mode range (0.5 V to V+ −1.25 V) and supports wide supply operation (2.7V–30V). Its open-collector output allows flexible pull-up to any logic rail up to 36V, while the strobe pin enables external enable/disable control via 3–5 mA current sink.
Designed for analog-digital boundary applications, it integrates input protection against ±30V differential stress and operates across −40°C to +85°C. The device avoids internal latch-up and features 72 dB CMRR and 40 V/mV large-signal gain for robust noise rejection in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 180 ns typical at 100 mV step with 25 mV overdrive - enables sub-microsecond decision timing in real-time sensing loops. |
| Supply Voltage Range | 2.7V to 30V - supports direct integration into 3V, 3.3V, and 5V systems without level translation. |
| Input Offset Voltage | 5 mV max - ensures accurate threshold detection in precision window or zero-crossing applications. |
| Input Bias Current | 130 nA max - minimizes loading on high-impedance sensor sources like thermistors or photodiodes. |
| Output Saturation Voltage | 0.4 V max at 8 mA sink - guarantees TTL/CMOS-compatible low-state margin even under heavy load. |
| Common-Mode Rejection | 72 dB - suppresses supply noise and ground bounce in shared PCB domains. |
| Strobe Enable Current | 3–5 mA required - provides reliable output disable without voltage-level constraints or external logic gates. |
Pinout & Package
LM6511IMX is housed in an 8-pin SOIC (Package D), 3.9 mm × 4.9 mm body, 1.75 mm max height, RoHS-compliant with Sn lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Accepts reference or feedback signal; supports common-mode range down to 0.5 V. |
| 2 (IN+) | Non-inverting Input | Accepts sensed signal; input impedance >1 GΩ enables minimal source loading. |
| 3 (V−) | Negative Supply / Ground | Reference node for single-supply operation; tied to system ground in most 3V designs. |
| 4 (STROBE) | Output Enable Control | Sink 3–5 mA to disable output; open or high-impedance state enables output. |
| 5 (OUT) | Open-Collector Output | Drives external pull-up to any logic rail ≤36V; supports wire-OR and mixed-voltage interfacing. |
| 6 (V+) | Positive Supply | Accepts 2.7V–30V; internal regulation not required - simplifies power design. |
| 7 (NC) | No Connect | Internally unused; must remain unconnected per TI specification. |
| 8 (NC) | No Connect | Internally unused; must remain unconnected per TI specification. |
Key Features
| Feature | Design Value |
|---|---|
| 180 ns response time | Enables real-time overvoltage/undervoltage detection in battery management and power sequencing circuits. |
| Strobe-controlled output disable | Eliminates need for external gate logic when synchronizing comparator decisions with system clocks or ADC sampling windows. |
| Wide 2.7V–30V supply range | Permits reuse across multiple voltage domains - e.g., same part used in 3V sensor front-end and 24V industrial I/O modules. |
| ±30V differential input tolerance | Withstands transient coupling and ESD events without clamping diodes or external protection networks. |
| Open-collector output with 36V max pull-up | Interfaces directly with 5V TTL, 3.3V CMOS, or 24V PLC logic without level translators or resistive dividers. |
Applications
| Battery-Powered Threshold Detection | Universal Logic Level Shifter |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in handheld medical devices. IC Role / Device Role / Timing Role: Comparator detecting 4.2V overcharge and 3.0V undervoltage thresholds with <200 ns latency. Use Value: Enables precise, low-power cutoff without microcontroller intervention - extends runtime by eliminating polling overhead. |
Use Scenario: Translating 3.3V microcontroller GPIO signals to 5V motor driver enable inputs. IC Role / Device Role / Timing Role: Voltage-level translator using open-collector output pulled to 5V and input biased at 1.65V. Use Value: Eliminates discrete transistor-based shifter circuits - reduces BOM count and layout area by 60%. |
| Industrial Analog Input Protection | Power Supply Sequencing Monitor |
|
Use Scenario: Detecting out-of-range 0–10V process sensor outputs in PLC analog input modules. IC Role / Device Role / Timing Role: High-common-mode comparator validating signal integrity before ADC sampling. Use Value: Prevents corrupted data acquisition by flagging faults within 180 ns - improves system reliability in noisy factory environments. |
Use Scenario: Verifying correct startup order of dual-rail FPGA core (1.2V) and I/O (3.3V) supplies. IC Role / Device Role / Timing Role: Strobe-synchronized comparator monitoring each rail's rise time and threshold crossing. Use Value: Ensures safe FPGA configuration by disabling reset release until both rails stabilize - prevents configuration failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3501CD | Faster (4.5 ns), rail-to-rail output, but requires ≥2.7V supply and lacks strobe control. | Not suitable for strobe-gated sampling or open-collector wired-OR bus use. | Select TLV3501CD only when nanosecond speed is mandatory and strobe functionality is unnecessary. |
| LM393DR | Slower (1.3 µs), no strobe, lower supply current (0.4 mA), but wider temperature range (−40°C to +125°C). | Preferred for cost-sensitive automotive under-hood sensors where speed is secondary to thermal robustness. | Choose LM393DR for high-volume, non-timing-critical applications where extended temperature compliance is required. |
Compared with TLV3501CD and LM393DR, the LM6511IMX uniquely balances 180 ns speed, strobe control, open-collector flexibility, and 3V operation - making it optimal for portable, mixed-voltage, and synchronized analog-digital interface designs.
Availability
LM6511IMX is available at Aetrix Electronics and suitable for battery-powered instrumentation, universal logic level shifting, and industrial analog input protection requiring stable component supply and long-term manufacturability.
Supply support for LM6511IMX 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 specializing in analog and embedded processing technologies, with decades of leadership in precision analog ICs and industrial-grade components.
The LM6511IMX belongs to TI's legacy high-speed comparator product line, designed specifically for low-voltage, fast-response analog-digital interface applications in portable and mixed-supply systems.
FAQ
What is the maximum supply voltage for the LM6511IMX?
The LM6511IMX supports an absolute maximum supply voltage of +36V between V+ and V− pins. However, its guaranteed operating range is 2.7V to 30V per the datasheet's Operating Ratings table. Exceeding 30V may result in undefined behavior or reduced reliability, even if within absolute maximum limits. Always refer to the Electrical Characteristics section for performance validation at specific voltages.
Does the LM6511IMX have rail-to-rail input capability?
The LM6511IMX does not provide full rail-to-rail input voltage range. Its specified input common-mode range is 0.5V minimum to (V+ − 1.25V) maximum at TJ = 25°C. This allows operation near ground in single-supply configurations but excludes the bottom 0.5V and top 1.25V margins. For true rail-to-rail input, alternative comparators such as the TLV360x series should be evaluated.
How is the strobe pin used on the LM6511IMX?
The strobe pin (Pin 4) on the LM6511IMX must be actively sunk with 3–5 mA to disable the output. Leaving it open or pulling it high (via resistor or voltage) enables normal comparator operation. It is not a logic-level input - applying voltage directly risks incorrect behavior. TI explicitly warns against shorting the strobe pin to ground; current-source drive is mandatory for reliable enable/disable control.
Can the LM6511IMX drive a 5V TTL load directly?
Yes - the LM6511IMX's open-collector output can drive 5V TTL loads when paired with a pull-up resistor to 5V. Its output saturation voltage is guaranteed ≤0.4 V at 8 mA sink current, satisfying TTL low-level input requirements (VIL ≤ 0.8 V). Ensure the pull-up resistor value limits current to ≤8 mA under worst-case conditions to maintain spec compliance.
Is the LM6511IMX RoHS compliant and what is its moisture sensitivity level?
Yes, the LM6511IMX/NOPB.B is RoHS compliant with Sn (tin) lead finish and carries an MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH), per TI's Package Option Addendum. This allows indefinite storage and standard reflow profiles without baking - ideal for high-mix, low-volume production environments.
LM6511IMX 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:
- 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 FAQ
1.How can I place an order for LM6511IMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6511IMX 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 reliable?
The price and inventory of LM6511IMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6511IMX is usually 5 days.
3.What payment methods are accepted for LM6511IMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6511IMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6511IMX?
LM6511IMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6511IMX 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?
For technical support, including LM6511IMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6511IMX requirements.
6.How does Aetrix verify that LM6511IMX is sourced from the original manufacturer or authorized distributors?
All LM6511IMX 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 meets industry standards.
7.What is the process for return or replacement of LM6511IMX?
All LM6511IMX units undergo pre-shipment inspection (PSI). If there is an issue with LM6511IMX, 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 part is unused and in its original packaging.
Return procedure for LM6511IMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6511IMX Tags
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LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP Semiconductors
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