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Texas Instruments LM119WRQMLV
- Part No.:
- LM119WRQMLV
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 10-CFlatPack
- Datasheet:
-
LM119WRQMLV.pdf
- Description:
- HIGH SPEED DUAL COMPARATOR 10-CF
- Quantity:
- Payment:
- Shipping:
Inventory:3,419
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Product details
Overview
LM119WRQMLV from Texas Instruments is a radiation-hardened, high-speed dual comparator in a 10-pin CFP (NAD) package, operating from ±15V or single 5V supplies, with 80 ns typical response time, 10.5 kV/V gain, and input offset voltage ≤±3.8 mV - used in precision analog monitoring and relay control within space-grade power management systems.
For engineers reviewing the LM119WRQMLV datasheet, LM119WRQMLV pinout, LM119WRQMLV application, or LM119WRQMLV equivalent, this page delivers verified radiation-tolerant comparator specifications, validated pin functions for TO-100/CFP variants, real-world timing performance at ±15V, and direct alternatives qualified under MIL-PRF-38535 QML-V.
Technical Context
The LM119WRQMLV implements two independent, uncommitted-collector comparators with rail-to-rail input capability up to ±12 V common-mode range and supports TTL/DTL/RTL interfacing. Its architecture enables isolation of inputs and outputs from system ground, critical for floating-sense applications in spacecraft power distribution units.
It features high common-mode slew rate and operates across −55°C to +125°C with guaranteed performance after 100 krad(Si) total ionizing dose (TID), meeting High Dose Rate (HDR) and ELDRS-Free requirements per SMD 5962-9679801VHA and 5962-9679802VHA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±15 V or single 5 V - supports legacy bipolar and modern low-voltage logic interfaces without level-shifting. |
| Response Time | 80 ns typical at ±15 V - enables fast overvoltage/undervoltage detection in DC-DC converter protection circuits. |
| Input Offset Voltage | ±3.8 mV max at 25°C - ensures accurate window detection thresholds in precision sensor signal conditioning. |
| Output Drive Capability | 25 mA sink current - directly drives relays, LEDs, or logic gates without external buffers. |
| Radiation Tolerance | 100 krad(Si) TID, HDR & ELDRS-Free - qualified for long-duration missions in geosynchronous and deep-space environments. |
| Operating Temperature | −55°C to +125°C - meets extended-range requirements for avionics and satellite payload electronics. |
| Input Bias Current | 0.47 µA max at ±15 V - minimizes loading error on high-impedance voltage divider networks. |
Pinout & Package
LM119WRQMLV is housed in a hermetically sealed 10-pin Ceramic Flatpack (CFP, package code NAD), with case connected to Pin 5 (V−). The package provides mechanical robustness and thermal stability for space-grade mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− 1 | Inverting input for Comparator 1 - referenced to system ground or isolated sensing node. |
| 2 | IN+ 1 | Non-inverting input for Comparator 1 - accepts signals up to ±12 V common-mode range. |
| 3 | GND 1 | Ground reference for Comparator 1 output stage - electrically isolated from system GND per design. |
| 4 | OUTPUT 1 | Open-collector output for Comparator 1 - requires external pull-up to interface with TTL/CMOS loads. |
| 5 | V− | Negative supply terminal and case connection - establishes reference for dual-supply operation. |
| 6 | N/C | No internal connection - left unconnected per TI specification. |
| 7 | N/C | No internal connection - left unconnected per TI specification. |
| 8 | N/C | No internal connection - left unconnected per TI specification. |
| 9 | OUTPUT 2 | Open-collector output for Comparator 2 - independently configurable for dual-threshold detection. |
| 10 | IN− 2 | Inverting input for Comparator 2 - enables independent signal comparison paths. |
Key Features
| Feature | Design Value |
|---|---|
| Two independent comparators | Enables simultaneous high/low threshold detection in window comparator topologies without cross-talk. |
| Uncommitted collector outputs | Supports flexible interfacing with TTL, DTL, RTL, lamps, or relays - no fixed logic family dependency. |
| Input/output isolation from system ground | Permits floating-sense configurations in high-side current monitoring or isolated power rail supervision. |
| High common-mode slew rate | Maintains accurate comparison during fast transients in motor drive feedback or battery cell balancing circuits. |
| Operates from single 5V supply | Reduces board-level power conversion complexity in mixed-signal subsystems with digital controllers. |
Applications
| Power Supply Monitor | Window Detector |
|---|---|
Use Scenario: Monitoring ±15 V analog rails in satellite telemetry modules to trigger fault shutdown before regulator overvoltage. IC Role / Device Role / Timing Role: Dual comparator compares upper/lower thresholds against sensed rail voltage; outputs drive latch circuitry. Use Value: 80 ns response ensures sub-microsecond fault reaction, preserving downstream FPGA and ADC integrity. | Use Scenario: Validating battery cell voltage stays within 3.0–4.2 V safe operating window in lunar lander battery management. IC Role / Device Role / Timing Role: LM119WRQMLV configured as window comparator with resistive dividers sets precise trip points. Use Value: ±3.8 mV input offset ensures <±10 mV total threshold error, critical for cell-level state-of-charge accuracy. |
| Relay Driver Interface | Isolated Sensor Signal Conditioning |
Use Scenario: Driving 24 V DC relays in launch vehicle pyro sequencing control based on discrete logic signals. IC Role / Device Role / Timing Role: Comparator output sinks 25 mA to energize relay coil; open-collector allows direct 24 V pull-up. Use Value: Eliminates need for discrete transistor drivers, reducing component count and failure modes in Class-S safety-critical paths. | Use Scenario: Conditioning thermocouple outputs in engine chamber temperature sensors where ground loops must be avoided. IC Role / Device Role / Timing Role: Inputs and outputs isolated from system ground; comparator references local sensor ground. Use Value: Prevents measurement corruption from high di/dt noise in adjacent power stages, ensuring <0.1% linearity error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM119HRQMLV | TO-100 (LME) 10-pin metal can package; identical electrical specs and radiation qualification. | Requires different PCB footprint and thermal relief; better EMI shielding but larger volume. | Select when mechanical ruggedness or RF immunity outweighs board space constraints. |
| LM119J-QMLV | 14-pin CDIP (J) package; same radiation spec but higher pin count and different pinout. | Not pin-compatible; needs layout revision and additional decoupling due to longer lead inductance. | Choose only if existing CDIP socket infrastructure exists or for legacy board reuse. |
Compared with LM119HRQMLV and LM119J-QMLV, the LM119WRQMLV offers optimal balance of compact CFP packaging, proven thermal performance in conduction-cooled modules, and drop-in compatibility with existing NAD-footprinted designs - making it the preferred choice for new space-qualified PCB layouts.
Availability
LM119WRQMLV is available at Aetrix Electronics and suitable for radiation-tolerant power sequencing, satellite telemetry monitoring, and launch vehicle pyro control requiring stable component supply across extended product lifecycles.
Supply support for LM119WRQMLV 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 decades of heritage in high-reliability aerospace components.
The LM119QML product line was developed specifically for military and space applications requiring radiation hardness, wide temperature operation, and long-term supply assurance under MIL-PRF-38535 QML-V.
FAQ
What is the maximum supply voltage rating for LM119WRQMLV?
The LM119WRQMLV has an absolute maximum total supply voltage of 36 V, with individual limits of ±15 V for dual-supply operation and up to +18 V relative to ground when using a single positive supply. Exceeding these values risks permanent damage, especially given its uncommitted collector outputs and lack of internal clamping diodes.
Does LM119WRQMLV support single-supply operation with a 5 V rail?
Yes, LM119WRQMLV is explicitly specified to operate from a single 5 V supply, with full functionality including input common-mode range from 1.0 V to 3.0 V and output saturation voltage ≤0.4 V at 4 mA load. This enables direct integration with 5 V microcontrollers and logic families without level translation.
How does the radiation qualification of LM119WRQMLV differ between High Dose Rate and ELDRS-Free versions?
The LM119WRQMLV is qualified under both SMD 5962-9679801VHA (High Dose Rate) and 5962-9679802VHA (ELDRS-Free) standards. Both meet 100 krad(Si) TID, but the ELDRS-Free variant undergoes wafer-level low-dose-rate testing per MIL-STD-883 Method 1019 Condition D to guarantee no enhanced degradation in GEO orbit environments - a distinction critical for multi-year missions.
Can LM119WRQMLV drive a 24 V relay directly?
Yes, LM119WRQMLV's open-collector outputs can sink up to 25 mA, sufficient to drive small 24 V relays when paired with an external 24 V pull-up resistor. However, relay coil inductance requires a flyback diode across the coil; the LM119WRQMLV itself does not integrate clamp protection.
What is the pin 5 function on LM119WRQMLV, and why is it tied to the case?
Pin 5 on LM119WRQMLV is the V− terminal and is internally bonded to the ceramic package case. This design establishes the negative supply reference and provides mechanical grounding for EMI suppression - a requirement for space-grade CFP packages per MIL-STD-1835. Users must connect Pin 5 to system V− and ensure case contact with grounded chassis or heat sink.
LM119WRQMLV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 10-CFlatPack
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Collector, DTL, RTL, TTL
- Voltage - Supply, Single/Dual (±):
- 36V
- :
- 4mV @ ±15V
- Voltage - Input Offset (Max):
- 0.5µA @ ±15V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 4.5mA, 11.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 10-CFP
LM119WRQMLV FAQ
1.How can I place an order for LM119WRQMLV through Aetrix?
Please submit a Request for Quotation (RFQ) for LM119WRQMLV 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 LM119WRQMLV reliable?
The price and inventory of LM119WRQMLV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM119WRQMLV is usually 5 days.
3.What payment methods are accepted for LM119WRQMLV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM119WRQMLV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM119WRQMLV?
LM119WRQMLV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM119WRQMLV 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 LM119WRQMLV?
For technical support, including LM119WRQMLV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM119WRQMLV requirements.
6.How does Aetrix verify that LM119WRQMLV is sourced from the original manufacturer or authorized distributors?
All LM119WRQMLV 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 LM119WRQMLV meets industry standards.
7.What is the process for return or replacement of LM119WRQMLV?
All LM119WRQMLV units undergo pre-shipment inspection (PSI). If there is an issue with LM119WRQMLV, 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 LM119WRQMLV part is unused and in its original packaging.
Return procedure for LM119WRQMLV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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