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Texas Instruments LM119W/883
- Part No.:
- LM119W/883
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 10-CFlatPack
- Datasheet:
-
LM119W/883.pdf
- Description:
- HIGH SPEED DUAL COMPARATOR 10-CF
- Quantity:
- Payment:
- Shipping:
Inventory:1,891
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Product details
Overview
LM119W/883 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. It drives TTL/DTL/RTL loads up to 25 mA and supports isolated inputs/outputs for ground-referenced systems.
For engineers reviewing the LM119W/883 datasheet, LM119W/883 pinout, LM119W/883 application, or LM119W/883 equivalent, this page delivers verified military-grade comparator specifications, radiation tolerance data (100 krad(Si), ELDRS-free), thermal derating guidance, and precise pin-function mapping for space, avionics, and nuclear instrumentation designs.
Technical Context
The LM119W/883 implements two independent open-collector comparators with uncommitted outputs, enabling wired-OR logic and direct lamp/relay drive. Its input stage features low bias current (≤0.95 µA) and wide common-mode range (±12 V at ±15 V supply), supporting operation across full rail-to-rail input swings.
It uses bipolar transistor architecture with high slew rate and fast propagation delay-optimized for precision timing, window detection, and overvoltage monitoring in harsh environments where radiation-induced parametric shift must remain within ±0.4 mV post-100 krad(Si) exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±15 V or +5 V single supply - enables compatibility with legacy analog rails and modern 5 V logic systems without level-shifting. |
| Response Time | 80 ns typical at ±15 V - supports high-speed signal discrimination in pulse-width modulation and fault-detection circuits. |
| Input Offset Voltage | ±3.8 mV max at 25°C - ensures accurate threshold detection in precision window comparators and reference monitoring. |
| Output Drive Capability | 25 mA sink per channel - directly interfaces with LEDs, solenoids, and TTL inputs without external buffers. |
| Radiation Tolerance | 100 krad(Si) total ionizing dose, ELDRS-free - qualified for long-duration space missions and nuclear facility control systems. |
| Operating Temperature | −55°C to +125°C - validated for extreme-environment deployment in aerospace and defense platforms. |
| Common-Mode Rejection | 80 dB minimum - maintains accuracy despite ground noise or supply ripple in mixed-signal subsystems. |
Pinout & Package
LM119W/883 is housed in a hermetically sealed 10-pin Ceramic Flatpack (CFP, package code NAD), with leads arranged in two parallel rows. The case is electrically connected to Pin 5 (V−).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− 1 | Inverting input of Comparator 1 - referenced against IN+1 to determine output state; accepts −12 V to +12 V common-mode range. |
| 2 | IN+ 1 | Non-inverting input of Comparator 1 - used for threshold setting in level-detection applications. |
| 3 | GND 1 | Ground reference for Comparator 1 - isolated from system ground per MIL-STD-883 requirement for noise immunity. |
| 4 | OUTPUT 1 | Open-collector output of Comparator 1 - requires external pull-up; sinks up to 25 mA for direct TTL/relay interface. |
| 5 | V− | Negative supply terminal - also serves as case connection; must be tied to system ground or negative rail per layout guidelines. |
| 6 | N/C | No internal connection - left unconnected; no routing or grounding required. |
| 7 | N/C | No internal connection - left unconnected; no routing or grounding required. |
| 8 | IN+ 2 | Non-inverting input of Comparator 2 - independently configurable for dual-threshold or differential sensing. |
| 9 | IN− 2 | Inverting input of Comparator 2 - supports independent signal comparison without crosstalk. |
| 10 | OUTPUT 2 | Open-collector output of Comparator 2 - electrically isolated from OUTPUT 1; enables independent load control. |
Key Features
| Feature | Design Value |
|---|---|
| Two independent comparators | Enables simultaneous monitoring of separate analog signals (e.g., upper/lower thresholds in window detectors) without shared bias or loading effects. |
| Operates from single 5V supply | Eliminates need for dual-rail power in digital-centric systems such as FPGA I/O monitoring or microcontroller-based sensor interfaces. |
| High common-mode slew rate | Maintains valid comparison during fast-rising common-mode transients (e.g., EMI bursts), critical in motor-drive feedback loops. |
| Inputs and outputs isolated from system ground | Permits floating sensor measurements and galvanic separation between analog front-end and digital back-end in safety-critical systems. |
| Minimum fan-out of 2 each side | Drives multiple downstream logic gates or optocouplers without buffering, reducing component count in radiation-tolerant PCB layouts. |
Applications
| Relay Driver | Window Detector |
|---|---|
Use Scenario: Controlling high-voltage AC relays in industrial PLC I/O modules subject to gamma irradiation. IC Role / Device Role / Timing Role: Dual comparator compares sensed line voltage against upper/lower thresholds and triggers relay coil via open-collector outputs. Use Value: 25 mA output sink eliminates external driver transistors; radiation-hardened design ensures >100 krad(Si) operational integrity without recalibration. | Use Scenario: Monitoring battery pack cell voltage in satellite power management units. IC Role / Device Role / Timing Role: Comparator 1 detects under-voltage (IN−1 > IN+1), Comparator 2 detects over-voltage (IN+2 > IN−2); wired-OR output asserts fault flag. Use Value: Independent input isolation prevents ground-loop errors; ±3.8 mV offset ensures <10 mV total window error across −55°C to +125°C. |
| Nuclear Instrumentation | Avionics Signal Conditioning |
Use Scenario: Pulse-height analysis in radiation dosimetry sensors deployed in reactor containment zones. IC Role / Device Role / Timing Role: Fast 80 ns response discriminates alpha vs. beta particle pulses; dual channels support coincidence counting. Use Value: ELDRS-free qualification guarantees stable offset and gain after 100 krad(Si), avoiding false alarms during extended exposure. | Use Scenario: Validating analog sensor outputs (e.g., pitot-static, temperature) before feeding to flight control computers. IC Role / Device Role / Timing Role: Compares sensor readings against redundant reference voltages; outputs feed FPGA-based health monitor logic. Use Value: −55°C to +125°C operation meets DO-160E environmental requirements; CFP package withstands mechanical shock and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM119H/883 | TO-100 metal-can package (10-pin), same electrical specs but different thermal resistance (θJA = 162°C/W still air) and mechanical form factor. | Suitable for through-hole prototyping or legacy board reuse where CFP footprint unavailable; less suitable for high-density surface-mount assemblies. | Select when mechanical mounting constraints require metal-can shielding or existing TO-100 socket compatibility. |
| LM119J/883 | 14-pin CDIP package with identical comparator core but added GND 2, V+, and N/C pins; higher pin count increases PCB area and routing complexity. | Used in legacy military systems with fixed CDIP footprints; lacks the compactness and hermetic reliability of CFP for new space-qualified designs. | Select only for backward compatibility with CDIP-based boards; not recommended for new radiation-tolerant designs due to larger size and lower thermal performance. |
Compared with LM119H/883 and LM119J/883, the LM119W/883 offers optimal balance of radiation hardness, thermal efficiency (θJA = 93.98°C/W), and surface-mount compatibility in a compact CFP package-making it the preferred choice for new high-reliability avionics and space electronics.
Availability
LM119W/883 is available at Aetrix Electronics and suitable for nuclear instrumentation, avionics signal conditioning, and relay driver applications requiring stable component supply across extended product lifecycles and radiation-exposed environments.
Supply support for LM119W/883 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 military and space-grade components.
The LM119QML family was designed specifically for radiation-tolerant analog signal conditioning in mission-critical defense, aerospace, and nuclear systems-emphasizing parametric stability, wide temperature operation, and MIL-STD-883 compliance.
FAQ
What is the maximum supply voltage rating for LM119W/883?
The LM119W/883 has an absolute maximum total supply voltage of 36 V, with individual limits of ±15 V on V+ and V− terminals. Operation beyond ±15 V risks permanent damage; for single-supply use, apply +5 V to V+ and ground to V−, ensuring input voltages stay within 1.0 V to 3.0 V range relative to ground.
Does LM119W/883 support single-supply operation with TTL-compatible outputs?
Yes, LM119W/883 operates from a single +5 V supply and provides TTL-compatible outputs via its open-collector configuration. When used with a 5 V pull-up resistor, OUTPUT 1 or OUTPUT 2 sinks up to 25 mA, producing a valid low-level signal (<0.4 V) that meets standard TTL input thresholds.
How does the radiation qualification of LM119W/883 differ between high-dose-rate and ELDRS-free variants?
The LM119W/883 is qualified to both 100 krad(Si) high-dose-rate and ELDRS-free standards per MIL-STD-883 Method 1019. Post-irradiation testing confirms input offset voltage remains within ±4.0 mV and bias current ≤1.0 µA, with no enhanced low-dose-rate sensitivity-ensuring predictable behavior in both prompt and accumulated space radiation environments.
Can LM119W/883 inputs be driven beyond the supply rails?
No-LM119W/883 input voltage must remain within ±5 V differential and within the common-mode range: ±12 V for ±15 V supplies, or 1.0 V to 3.0 V for +5 V single supply. Exceeding these limits risks latch-up or parametric degradation, especially under radiation exposure.
What is the thermal resistance (θJA) of LM119W/883 in still air, and how does it affect power dissipation?
The LM119W/883 in CFP (NAD) package has θJA = 93.98°C/W in still air. At ambient temperature of 125°C and maximum junction temperature of 150°C, allowable power dissipation is limited to (150 − 125)/93.98 ≈ 0.266 W-well below its 500 mW absolute maximum, confirming safe operation under worst-case conditions.
LM119W/883 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
LM119W/883 FAQ
1.How can I place an order for LM119W/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM119W/883 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 LM119W/883 reliable?
The price and inventory of LM119W/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM119W/883 is usually 5 days.
3.What payment methods are accepted for LM119W/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM119W/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM119W/883?
LM119W/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM119W/883 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 LM119W/883?
For technical support, including LM119W/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM119W/883 requirements.
6.How does Aetrix verify that LM119W/883 is sourced from the original manufacturer or authorized distributors?
All LM119W/883 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 LM119W/883 meets industry standards.
7.What is the process for return or replacement of LM119W/883?
All LM119W/883 units undergo pre-shipment inspection (PSI). If there is an issue with LM119W/883, 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 LM119W/883 part is unused and in its original packaging.
Return procedure for LM119W/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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