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Texas Instruments LM111WRLQMLV
- Part No.:
- LM111WRLQMLV
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 10-CFlatPack
- Datasheet:
-
LM111WRLQMLV.pdf
- Description:
- VOLTAGE COMPARATOR 10-CFP -55 TO
- Quantity:
- Payment:
- Shipping:
Inventory:1,709
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Product details
Overview
LM111WRLQMLV from Texas Instruments is a radiation-hardened voltage comparator designed for space and high-reliability military systems. It delivers 200 nA max input current, ±30 V differential input range, and 50 mA output sink capability across −55°C to +125°C. Its strobe function, offset null capability, and compatibility with TTL/DTL/RTL loads enable precise threshold detection in satellite power sequencing and avionics sensor interfaces.
For engineers reviewing the LM111WRLQMLV datasheet, LM111WRLQMLV pinout, LM111WRLQMLV application, or LM111WRLQMLV equivalent, this page provides verified radiation performance data (50 krad(Si) high-dose-rate and 100 krad(Si) ELDRS-free), absolute maximum ratings, thermal resistance values per package variant, and confirmed pin assignments for TO-99, CDIP, CLGA, and LCCC configurations.
Technical Context
The LM111WRLQMLV implements an open-collector NPN output stage with independent strobe control on Pin 6, enabling synchronized comparison gating in multi-channel monitoring systems. Its input stage uses matched transistor pairs to achieve ≤±3.0 mV input offset voltage and ≤±20 nA input offset current over full temperature range.
It supports dual-supply operation from ±5 V to ±15 V or single 5 V supply, with rail-to-rail input common-mode range up to ±30 V relative to supplies. Output can drive grounded, positive-supply-referenced, or negative-supply-referenced loads - critical for isolated bus monitoring in radiation environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±3.0 mV max at −55°C to +125°C - ensures stable trip-point accuracy without recalibration in thermal cycling environments |
| Input Bias Current | 100 nA max - enables high-impedance sensor interfacing without signal loading errors |
| Differential Input Range | ±30 V - allows direct comparison of signals referenced to non-ground potentials (e.g., floating battery stacks) |
| Output Sink Current | 50 mA - drives relays, LEDs, or logic inputs without external buffers in safety-critical actuation paths |
| Response Time | 300 ns (min) at 5 mV overdrive - supports fast fault detection in power converter protection circuits |
| Radiation Tolerance | 50 krad(Si) high-dose-rate & 100 krad(Si) ELDRS-free - qualified per MIL-STD-883 Method 1019 for spaceflight use |
| Operating Temperature | −55°C to +125°C - validated across extreme thermal profiles in launch and orbital phases |
Pinout & Package
LM111WRLQMLV is available in multiple hermetic packages: 8-pin TO-99 (LMC0008C), 8-pin CDIP (NAB0014A), 10-pin CLGA (NAC0010A/NAD0010A), and 20-pin LCCC (NAJ0020A). Pin functions are consistent across variants per TI SNOSAJ4C Rev. MARCH 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (TO-99/CDIP) | Inverting Input (IN−) | Accepts reference or feedback signal; common-mode range extends to ±30 V beyond supplies |
| Pin 2 (TO-99/CDIP) | Non-Inverting Input (IN+) | Accepts sensed signal; matched with IN− for low offset and drift |
| Pin 5 (TO-99/CDIP) | Balance | Connects to external potentiometer for manual offset nulling - essential for precision DC thresholds |
| Pin 6 (TO-99/CDIP) | Balance/Strobe | Enables gated comparison: pulls output high-Z when strobed - used for time-synchronized sampling |
| Pin 7 (TO-99/CDIP) | Output (Collector) | Open-collector NPN - requires external pull-up; sinks up to 50 mA to ground or negative rail |
| Pin 8 (TO-99/CDIP) | Positive Supply (V+) | Supports single 5 V or dual ±15 V operation; internal regulation not required |
| Pin 4 (TO-99) | Case Ground | Internally connected to metal can - must be tied to system ground or shield for EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Strobe-enabled comparison | Pin 6 controls output high-impedance state, allowing time-multiplexed monitoring of multiple analog channels |
| Offset voltage nulling | External potentiometer between Pins 5 and 6 adjusts input offset to ≤±0.5 mV post-calibration |
| Wide supply flexibility | Operates from single 5 V logic supply or standard ±15 V op-amp rails - eliminates need for auxiliary regulators |
| High-voltage input tolerance | ±30 V differential input range accommodates direct connection to unregulated power buses or motor windings |
| Hermetic packaging options | TO-99, CDIP, CLGA, and LCCC variants meet MIL-PRF-38534 Class K requirements for vacuum and humidity resistance |
Applications
| Power Sequencing Monitor | Satellite Bus Voltage Supervisor |
|---|---|
Use Scenario: Verifying correct ramp-up order of FPGA core, I/O, and analog supply rails during spacecraft power-on reset. IC Role / Device Role / Timing Role: Comparator detects each rail crossing its threshold; strobe synchronizes comparisons to avoid false triggers during transient overlap. Use Value: Prevents latch-up by enforcing strict sequencing - enabled by 300 ns response and ±30 V input range handling rail overshoot. | Use Scenario: Monitoring 28 V primary bus and 5 V secondary bus in LEO satellite payload for undervoltage/overvoltage faults. IC Role / Device Role / Timing Role: Dual comparators (using two LM111WRLQMLV units) supervise high-side and low-side thresholds with independent strobe control. Use Value: Radiation-hardened design ensures no parametric shift after 100 krad(Si) exposure - critical for mission-critical bus integrity. |
| Avionics Sensor Threshold Detector | Radiation Test Bench Reference Comparator |
Use Scenario: Converting thermocouple or RTD outputs into digital alerts for cockpit warning systems in high-G military aircraft. IC Role / Device Role / Timing Role: Compares conditioned sensor voltage against precision reference; offset nulling compensates for cold-junction errors. Use Value: 100 nA input bias avoids loading high-impedance sensor bridges - maintains measurement accuracy without active buffering. | Use Scenario: Serving as golden reference in radiation test chambers to validate functional integrity of DUTs under controlled gamma irradiation. IC Role / Device Role / Timing Role: Provides known-stable comparison baseline before/after irradiation; delta-VIO ≤±0.5 mV confirms no radiation-induced degradation. Use Value: Post-irradiation delta parameters (e.g., ΔVIO = ±0.5 mV) are measured and guaranteed - enabling traceable calibration in qualification labs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM111QMLV | Same die, identical radiation specs (50 krad/100 krad), but offered in different screening flow per SMD 5962-8687701 vs. QMLV spec | No functional difference; differs only in test documentation format and lot traceability depth | Select LM111WRLQMLV when full QML Class V conformance with Group B subgroup 5 testing is contractually required |
| LM111H | Commercial-grade version; no radiation assurance, −55°C to +125°C temp range retained, but no ELDRS-free validation | Not suitable for space or nuclear environments; limited to ground-based industrial systems with benign radiation profiles | Choose LM111H only for cost-sensitive terrestrial prototypes where radiation testing is deferred or waived |
Compared with LM111QMLV, LM111WRLQMLV provides identical electrical and radiation performance but with enhanced lot-level traceability and extended burn-in per QMLV requirements; LM111H lacks all radiation guarantees and cannot substitute in flight hardware without requalification.
Availability
LM111WRLQMLV is available at Aetrix Electronics and suitable for satellite power sequencing, avionics sensor monitoring, and radiation test bench instrumentation requiring stable component supply across extended lifecycle programs.
Supply support for LM111WRLQMLV 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 heritage in high-reliability aerospace components.
The LM111 product line was engineered specifically for radiation-tolerant analog signal conditioning in spaceborne and defense systems - emphasizing parametric stability under ionizing dose, displacement damage, and thermal stress.
FAQ
What radiation hardness levels are guaranteed for LM111WRLQMLV?
LM111WRLQMLV is guaranteed to 50 krad(Si) high-dose-rate and 100 krad(Si) low-dose-rate (ELDRS-free), tested per MIL-STD-883 Method 1019 Condition A. Delta-VIO remains ≤±0.5 mV post-irradiation, and no parametric shifts exceed specification limits at end-of-life dose.
Does LM111WRLQMLV support single-supply operation?
Yes, LM111WRLQMLV operates from a single 5 V supply as specified in the datasheet. Its input common-mode range extends to within 1.5 V of the negative rail, and the open-collector output interfaces directly with 5 V logic families when pulled up to 5 V.
How is the strobe function implemented on LM111WRLQMLV?
The strobe function is accessed via Pin 6 (Balance/Strobe). When pulled low, it disables the output stage, placing the collector in high-impedance state. This allows synchronous sampling across multiple LM111WRLQMLV units sharing a common strobe line in time-critical monitoring systems.
Which packages are available for LM111WRLQMLV and what are their thermal resistances?
LM111WRLQMLV is offered in 8-pin TO-99 (θJA = 162°C/W still air), 8-pin CDIP (θJA = 134°C/W), 10-pin CLGA (θJA = 231°C/W), and 20-pin LCCC (θJA = 90°C/W). All values are measured at 0.5 W dissipation per MIL-STD-883 Method 1012.
Can LM111WRLQMLV drive a relay directly?
Yes, LM111WRLQMLV can directly drive relays requiring ≤50 mA coil current and ≤50 V coil voltage. Its open-collector output sinks 50 mA at 1.5 V saturation voltage when loaded, eliminating need for external driver transistors in most space-qualified relay interface designs.
LM111WRLQMLV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 10-CFlatPack
- Series:
- LM111
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 5V ~ 30V, ±2.5V ~ 15V
- :
- 3mV @ ±15V
- Voltage - Input Offset (Max):
- 0.1µA @ ±15V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 5mA, 6mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 200ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 10-CFP
LM111WRLQMLV FAQ
1.How can I place an order for LM111WRLQMLV through Aetrix?
Please submit a Request for Quotation (RFQ) for LM111WRLQMLV 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 LM111WRLQMLV reliable?
The price and inventory of LM111WRLQMLV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM111WRLQMLV is usually 5 days.
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4.How is shipping managed for LM111WRLQMLV?
LM111WRLQMLV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM111WRLQMLV 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 LM111WRLQMLV?
For technical support, including LM111WRLQMLV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM111WRLQMLV requirements.
6.How does Aetrix verify that LM111WRLQMLV is sourced from the original manufacturer or authorized distributors?
All LM111WRLQMLV 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 LM111WRLQMLV meets industry standards.
7.What is the process for return or replacement of LM111WRLQMLV?
All LM111WRLQMLV units undergo pre-shipment inspection (PSI). If there is an issue with LM111WRLQMLV, 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 LM111WRLQMLV part is unused and in its original packaging.
Return procedure for LM111WRLQMLV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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