My Inquiry
My Account
Texas Instruments LM119JRQMLV
- Part No.:
- LM119JRQMLV
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
LM119JRQMLV.pdf
- Description:
- HIGH SPEED DUAL COMPARATOR 14-CD
- Quantity:
- Payment:
- Shipping:
Inventory:1,916
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM119JRQMLV from Texas Instruments is a radiation-hardened, high-speed dual comparator IC designed for precision analog signal comparison in extreme environments. It features two independent comparators, 80 ns typical response time at ±15 V, ≤3.8 mV input offset voltage, and operates across −55°C to +125°C with supply voltages up to ±15 V or single 5 V. It is used in space-grade relay drivers and window detectors requiring ELDRS-free performance.
For engineers reviewing the LM119JRQMLV datasheet, LM119JRQMLV pinout, LM119JRQMLV application, or LM119JRQMLV equivalent, this page delivers verified radiation-tolerant comparator specifications, CDIP-14 package details, dual-channel timing behavior, and qualified military/space-grade alternatives aligned with MIL-STD-883 and SMD 5962-9679801VCA requirements.
Technical Context
The LM119JRQMLV implements open-collector output stages with uncommitted collectors compatible with TTL, DTL, and RTL logic families, enabling direct drive of lamps and relays up to 25 mA per channel. Its differential input stage supports common-mode input ranges from −12 V to +12 V at ±15 V supplies and 1.0 V to 3.0 V at 5 V operation.
Designed for high-reliability systems, it meets QML-V Class V requirements with High Dose Rate (100 krad(Si)) and ELDRS-Free qualification per SMD 5962-9679801 and 5962-9679802. Input bias current remains ≤0.95 µA over temperature, and voltage gain exceeds 10.5 kV/V under full-rail conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±15 V or single 5 V - supports mixed-signal systems powered from digital logic rails or bipolar supplies |
| Response Time | 80 ns typical at ±15 V - enables fast edge detection in pulse-width modulation and fault-monitoring circuits |
| Input Offset Voltage | ±3.8 mV max at 25°C - ensures accurate threshold comparison in precision window detectors |
| Output Drive Capability | 25 mA sink per channel - directly interfaces with electromechanical relays and indicator LEDs without external buffers |
| Operating Temperature | −55°C to +125°C - qualified for deployment in satellite payload electronics and avionics control units |
| Radiation Tolerance | 100 krad(Si) total ionizing dose, ELDRS-Free - validated for long-duration missions in low-earth and geosynchronous orbits |
| Input Bias Current | 0.95 µA max over temperature - minimizes loading error on high-impedance sensor inputs like thermocouples or strain gauges |
Pinout & Package
LM119JRQMLV is housed in a hermetically sealed Ceramic Dual-In-Line Package (CDIP), designated J0014A, with 14 leads and through-hole mounting. The package provides robust thermal performance (θJA = 94°C/W in still air) and mechanical stability for high-vibration aerospace applications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− 1 | Inverting input for comparator 1 - referenced against IN+ 1 to determine output state |
| 2 | IN+ 1 | Non-inverting input for comparator 1 - accepts analog signals up to ±12 V common-mode range |
| 3 | GND 1 | Ground reference for comparator 1 - electrically isolated from GND 2 to support split-supply operation |
| 4 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 5 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 6 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 7 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 8 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 9 | OUTPUT 1 | Open-collector output for comparator 1 - requires external pull-up to define logic-high level and drive load |
| 10 | V− | Negative supply rail - connects to −15 V or ground depending on single/dual supply configuration |
| 11 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 12 | GND 2 | Ground reference for comparator 2 - electrically isolated from GND 1 to support independent reference domains |
| 13 | IN− 2 | Inverting input for comparator 2 - referenced against IN+ 2 to determine output state |
| 14 | IN+ 2 | Non-inverting input for comparator 2 - accepts analog signals up to ±12 V common-mode range |
| 15 | OUTPUT 2 | Open-collector output for comparator 2 - requires external pull-up to define logic-high level and drive load |
| 16 | V+ | Positive supply rail - connects to +15 V or +5 V; absolute maximum 18 V above ground |
Key Features
| Feature | Design Value |
|---|---|
| Two independent comparators | Enables simultaneous monitoring of separate thresholds (e.g., overvoltage and undervoltage) without cross-talk |
| ELDRS-Free radiation hardening | Eliminates low-dose-rate sensitivity degradation - critical for multi-year orbital missions where dose rate varies |
| High common-mode slew rate | Maintains accurate comparison during fast-rising transients on power rails or sensor lines |
| Input/output isolation from system ground | Allows floating reference domains - essential for isolated power supply monitoring and current-sense amplification |
| Minimum fan-out of 2 per side | Drives multiple downstream logic gates or optocouplers without buffering - reduces BOM count and board area |
Applications
| Relay Driver | Window Detector |
|---|---|
|
Use Scenario: Controlling high-current DC relays in spacecraft power distribution units using discrete transistor switching. IC Role / Device Role / Timing Role: LM119JRQMLV compares sensed bus voltage against upper/lower thresholds and asserts open-collector outputs to enable base drive transistors. Use Value: Direct 25 mA sink capability eliminates need for Darlington arrays; radiation tolerance ensures uninterrupted relay actuation during solar particle events. |
Use Scenario: Monitoring battery voltage in launch vehicle telemetry systems to trigger safe shutdown if voltage exits 24–32 V window. IC Role / Device Role / Timing Role: LM119JRQMLV's dual channels implement high/low comparators with hysteresis via feedback resistors on IN+ pins. Use Value: Sub-4 mV offset ensures <±100 mV detection accuracy; −55°C to +125°C operation covers cryogenic fuel tank and engine bay extremes. |
| Satellite Power Sequencing | Radiation Monitor Interface |
|
Use Scenario: Enforcing strict power-up order across FPGA, memory, and RF subsystems in LEO microsatellites. IC Role / Device Role / Timing Role: LM119JRQMLV monitors individual rail voltages and generates sequenced enable signals via pull-up networks tied to downstream regulators. Use Value: Independent GND 1/GND 2 pins allow rail-specific ground referencing; 80 ns response prevents race conditions during rapid power ramp. |
Use Scenario: Interfacing solid-state radiation dosimeters (e.g., RADFETs) to analog-to-digital converters in deep-space probes. IC Role / Device Role / Timing Role: LM119JRQMLV converts small radiation-induced threshold shifts into clean digital flags for fault logging and autonomous mitigation. Use Value: ≤0.95 µA input bias avoids loading high-impedance dosimeter outputs; ELDRS-Free spec guarantees stable trip points over mission lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM119J-QMLV (5962-9679801VCA) | Identical electrical specs and radiation qualification; differs only in part marking and ordering code - same CDIP-14 package and test flow. | No functional difference; used interchangeably in QML-V procurement pipelines where legacy part numbering is required. | Select when sourcing against existing BOMs referencing 5962-9679801VCA or when matching documentation traceability to prior builds. |
| LM119HRQMLV (5962R9679801VIA) | TO-100 metal-can package (10-pin), −55°C to +125°C, same radiation specs but different thermal resistance (θJA = 162°C/W) and pinout. | Preferred for ultra-high-reliability analog front-ends where hermetic metal packaging improves moisture resistance and EMI shielding. | Select when mechanical ruggedness, EMI immunity, or legacy TO-100 footprint compatibility outweighs CDIP layout flexibility. |
Compared with LM119J-QMLV, LM119JRQMLV offers identical performance and qualification but reflects updated TI internal manufacturing and traceability protocols; compared with LM119HRQMLV, it trades metal-can robustness for higher-density CDIP layout and lower thermal resistance.
Availability
LM119JRQMLV is available at Aetrix Electronics and suitable for satellite power sequencing, radiation monitor interfaces, relay driver circuits, and window detector designs requiring stable component supply across extended production lifecycles.
Supply support for LM119JRQMLV 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 and defense components.
The LM119QML product line was developed specifically for radiation-tolerant analog signal conditioning in mission-critical space and military platforms, emphasizing deterministic timing, wide temperature operation, and process-level radiation hardening.
FAQ
What is the maximum supply voltage rating for LM119JRQMLV?
The LM119JRQMLV supports a total supply voltage of up to 36 V, with absolute maximum ratings of ±15 V on V+ and V−, or +5 V on V+ with ground on V−. Exceeding 16 V between ground and V+ is prohibited per datasheet warning - operation beyond this risks permanent damage due to internal junction breakdown.
Does LM119JRQMLV support single-supply operation?
Yes, LM119JRQMLV supports true single-supply operation from +5 V with ground referenced to V−. Its input common-mode range extends down to 1.0 V and up to 3.0 V under these conditions, and output saturation voltage remains ≤0.6 V at 4 mA load - enabling direct interface with 5 V TTL logic and microcontroller GPIOs.
How is radiation hardness verified for LM119JRQMLV?
LM119JRQMLV is qualified to SMD 5962-9679801VCA with High Dose Rate (100 krad(Si)) and ELDRS-Free certification per MIL-STD-883 Method 1019. Testing includes pre- and post-irradiation electrical characterization at −55°C, 25°C, and +125°C, with delta limits enforced on VIO, IIB, and ICC to ensure functional integrity after exposure.
What does "QML-V" signify for LM119JRQMLV?
QML-V denotes Qualified Manufacturers List Class V certification by the Defense Logistics Agency (DLA), confirming that LM119JRQMLV meets stringent reliability, screening, and quality assurance requirements for military and space applications. This includes lot acceptance testing per MIL-STD-883, burn-in, and group B dynamic testing across temperature extremes.
Can LM119JRQMLV drive a relay coil directly?
Yes, LM119JRQMLV can drive a relay coil directly via its open-collector output stage, sinking up to 25 mA per channel at ±15 V supply. A pull-up resistor to V+ or an external supply is required; typical implementation uses a 1 kΩ resistor to +15 V, delivering ~15 mA - sufficient for most signal-level relays such as TE Connectivity TX2-L-5V.
LM119JRQMLV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-CDIP (0.300", 7.62mm)
- 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:
- Through Hole
- :
- 14-CDIP
LM119JRQMLV FAQ
1.How can I place an order for LM119JRQMLV through Aetrix?
Please submit a Request for Quotation (RFQ) for LM119JRQMLV 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 LM119JRQMLV reliable?
The price and inventory of LM119JRQMLV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM119JRQMLV is usually 5 days.
3.What payment methods are accepted for LM119JRQMLV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM119JRQMLV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM119JRQMLV?
LM119JRQMLV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM119JRQMLV 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 LM119JRQMLV?
For technical support, including LM119JRQMLV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM119JRQMLV requirements.
6.How does Aetrix verify that LM119JRQMLV is sourced from the original manufacturer or authorized distributors?
All LM119JRQMLV 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 LM119JRQMLV meets industry standards.
7.What is the process for return or replacement of LM119JRQMLV?
All LM119JRQMLV units undergo pre-shipment inspection (PSI). If there is an issue with LM119JRQMLV, 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 LM119JRQMLV part is unused and in its original packaging.
Return procedure for LM119JRQMLV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM119JRQMLV Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
