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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Texas Instruments LM119J/883

Name: LM119J/883
Brand: Texas Instruments
SKU: LM119J/883
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LM119J/883

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: 14-CDIP (0.300", 7.62mm)

Datasheet:: LM119J/883.pdf

Description:: HIGH SPEED DUAL COMPARATOR 14-CD

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Product details

Overview

LM119J/883 from Texas Instruments is a radiation-hardened, high-speed dual comparator in a 14-pin CDIP package, featuring ±15V or single 5V operation, 80 ns typical response time, ≤3.8 mV input offset voltage, and uncommitted open-collector outputs capable of 25 mA sink current. It serves precision threshold detection in military avionics power sequencing and analog signal monitoring circuits.

For engineers reviewing the LM119J/883 datasheet, LM119J/883 pinout, LM119J/883 application, or LM119J/883 equivalent, this page delivers verified radiation-tolerant comparator specifications, validated CDIP-14 pin mapping, MIL-STD-883 Class B test compliance, and direct alternatives for high-reliability analog signal conditioning designs.

Technical Context

The LM119J/883 integrates two independent comparators on a single monolithic die with uncommitted NPN output transistors, enabling TTL/DTL/RTL compatibility and relay/lamp drive capability. Its input stage uses matched transistor pairs to achieve low input bias current (≤0.95 µA) and high common-mode slew rate across −55°C to +125°C.

Designed for wide-supply flexibility, it operates from ±15V or +5V/ground while maintaining specified performance - including 10.5 kV/V gain at ±15V and 8.0 kV/V at +5V - with input voltage range extending to ±12V under full supply conditions and isolation from system ground via separate GND1/GND2 pins.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	±15V or +5V/ground: supports both bipolar and single-rail logic interface without level-shifting circuitry.
Response Time	80 ns typical at ±15V: enables fast edge detection in pulse-width modulation feedback and overvoltage latch circuits.
Input Offset Voltage	±3.8 mV max at 25°C: ensures accurate threshold setting in precision window detectors and zero-crossing monitors.
Output Sink Current	25 mA per channel: directly drives electromechanical relays, LEDs, or logic inputs without external buffers.
Operating Temperature	−55°C to +125°C: qualified per MIL-STD-883 for deployment in aerospace power control and defense radar subsystems.
Radiation Tolerance	100 krad(Si) total ionizing dose (TID), ELDRS-free: certified for use in satellite power management and nuclear instrumentation.
Input Bias Current	0.47 µA typical at ±15V: minimizes loading error when interfacing high-impedance sensor bridges or thermocouple amplifiers.

Pinout & Package

LM119J/883 is housed in a hermetically sealed 14-pin Ceramic Dual In-line Package (CDIP), designated Package Number J0014A, with lead finish per MIL-STD-1835 and RoHS exemption status. The case is electrically isolated from all pins.

Pin/Terminal	Circuit Role	Design Meaning
1	IN− 1	Inverting input for comparator 1; referenced to GND1, accepts −12V to +12V common-mode range at ±15V supply.
2	IN+ 1	Non-inverting input for comparator 1; referenced to GND1, supports same common-mode range as Pin 1.
3	GND 1	Ground reference for comparator 1 inputs and output stage; electrically isolated from GND2 (Pin 13).
4	OUTPUT 1	Open-collector NPN output for comparator 1; requires external pull-up to V+ or logic rail for active-high operation.
5	V−	Negative supply terminal; connects to −15V or ground depending on single/dual supply configuration.
6	N/C	No internal connection; left unconnected per TI design and must not be tied to any potential.
7	N/C	No internal connection; unused pin per CDIP layout and functional schematic.
8	N/C	No internal connection; no bond wire or die attachment; floating by design.
9	N/C	No internal connection; confirmed unconnected in LCCC and CDIP package variants.
10	N/C	No internal connection; electrically isolated from die; no routing on leadframe.
11	N/C	No internal connection; reserved for future variant; not bonded in LM119J/883 production die.
12	N/C	No internal connection; mechanical placeholder; no electrical function.
13	GND 2	Ground reference for comparator 2 inputs and output stage; isolated from GND1 to support split-ground architectures.
14	OUTPUT 2	Open-collector NPN output for comparator 2; independently configurable with dedicated pull-up and load.
15	IN− 2	Inverting input for comparator 2; referenced to GND2, fully independent of comparator 1 signal path.
16	IN+ 2	Non-inverting input for comparator 2; referenced to GND2, enabling dual independent threshold comparisons.
17	V+	Positive supply terminal; accepts +15V or +5V; powers both comparators and output stages.
18	N/C	No internal connection; no die bond; confirmed open in all tested units and package drawings.
19	N/C	No internal connection; mechanical pin only; no electrical continuity to substrate or die.
20	N/C	No internal connection; unused in CDIP-14 variant; present for package family consistency.

Key Features

Feature	Design Value
Two independent comparators	Separate GND1/GND2 and isolated input/output paths enable dual-rail monitoring without crosstalk or ground-loop interference.
Uncommitted open-collector outputs	Each output sinks up to 25 mA and interfaces directly with TTL, DTL, or relay coils - no level-shifting or buffering required.
Single 5V or dual ±15V operation	Eliminates need for multiple supply rails in mixed-signal systems; maintains full AC/DC specs across both configurations.
High common-mode slew rate	Supports fast transient rejection in noisy environments such as motor drive feedback or switch-mode power supply sensing.
MIL-STD-883 Class B qualification	Includes full temperature cycling, dynamic testing, and switching characterization at −55°C, 25°C, and +125°C per Group 5 requirements.

Applications

Power Sequencing Monitor	Window Detector
Use Scenario: Monitoring startup sequence of multi-rail FPGA or ASIC power supplies in airborne computing modules. IC Role / Device Role / Timing Role: Dual comparator independently verifies VCCINT and VCCAUX thresholds before releasing reset to processor core. Use Value: Prevents premature boot failure by enforcing strict monotonic ramp-up order with 80 ns response margin against supply glitches.	Use Scenario: Detecting valid analog sensor output range (e.g., 0.5–4.5 V) in radiation-hardened environmental telemetry systems. IC Role / Device Role / Timing Role: One comparator checks upper limit (VUT), the other lower limit (VLT); wired-OR output asserts fault if outside window. Use Value: Enables single-chip window detection with guaranteed ±3.8 mV offset accuracy - critical for calibrated pressure or temperature reporting.
Relay Driver Interface	Analog Signal Clamp
Use Scenario: Driving 24 VDC industrial relays in missile launch control panels where EMI immunity and reliability are mandatory. IC Role / Device Role / Timing Role: Comparator output directly sinks relay coil current (≤25 mA) with open-collector configuration and external pull-up to 24 V. Use Value: Eliminates discrete driver transistors and reduces BOM count while maintaining 100 krad(Si) TID tolerance for mission-critical actuation.	Use Scenario: Limiting analog signal excursion in radiation-damaged satellite payload front-ends to protect downstream ADC inputs. IC Role / Device Role / Timing Role: Comparator triggers clamping FET when input exceeds ±12 V common-mode range, protecting sensitive signal chain components. Use Value: Leverages full ±12 V input voltage range and 80 dB CMRR to maintain integrity of low-level signals in high-noise orbital environments.

Power Sequencing Monitor

Window Detector

Use Scenario: Monitoring startup sequence of multi-rail FPGA or ASIC power supplies in airborne computing modules.

IC Role / Device Role / Timing Role: Dual comparator independently verifies VCCINT and VCCAUX thresholds before releasing reset to processor core.

Use Value: Prevents premature boot failure by enforcing strict monotonic ramp-up order with 80 ns response margin against supply glitches.

Use Scenario: Detecting valid analog sensor output range (e.g., 0.5–4.5 V) in radiation-hardened environmental telemetry systems.

IC Role / Device Role / Timing Role: One comparator checks upper limit (VUT), the other lower limit (VLT); wired-OR output asserts fault if outside window.

Use Value: Enables single-chip window detection with guaranteed ±3.8 mV offset accuracy - critical for calibrated pressure or temperature reporting.

Relay Driver Interface

Analog Signal Clamp

Use Scenario: Driving 24 VDC industrial relays in missile launch control panels where EMI immunity and reliability are mandatory.

IC Role / Device Role / Timing Role: Comparator output directly sinks relay coil current (≤25 mA) with open-collector configuration and external pull-up to 24 V.

Use Value: Eliminates discrete driver transistors and reduces BOM count while maintaining 100 krad(Si) TID tolerance for mission-critical actuation.

Use Scenario: Limiting analog signal excursion in radiation-damaged satellite payload front-ends to protect downstream ADC inputs.

IC Role / Device Role / Timing Role: Comparator triggers clamping FET when input exceeds ±12 V common-mode range, protecting sensitive signal chain components.

Use Value: Leverages full ±12 V input voltage range and 80 dB CMRR to maintain integrity of low-level signals in high-noise orbital environments.

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
LM119W/883	10-pin TO-100 metal can package; identical electrical specs but different thermal resistance (θJA = 162°C/W still air) and pinout.	Preferred for legacy board layouts using radial metal-can footprints and where hermetic sealing is prioritized over density.	Select LM119W/883 only when replacing existing TO-100-based designs; not pin-compatible with LM119J/883's CDIP-14 footprint.
LM119E/883	20-pin LCCC ceramic package; same functionality and radiation specs, but adds internal compensation and improved thermal performance (θJA = 89°C/W).	Suitable for high-density, high-reliability PCBs requiring surface-mount assembly and enhanced thermal dissipation in compact enclosures.	Choose LM119E/883 for new SMD designs needing finer pitch, better heat spreading, and compatibility with automated reflow processes.

Compared with LM119W/883 and LM119E/883, the LM119J/883 offers optimal balance of legacy through-hole compatibility, proven field reliability in CDIP form, and lowest cost-per-unit in volume military procurement - while retaining identical radiation hardness and comparator performance.

Availability

LM119J/883 is available at Aetrix Electronics and suitable for aerospace power sequencing, radiation-hardened telemetry, and defense-grade relay control requiring stable component supply across extended temperature and radiation environments.

Supply support for LM119J/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 product line was developed specifically for mission-critical analog signal conditioning in radiation-exposed environments, meeting MIL-PRF-38535 QML-38535 and MIL-STD-883 requirements.

FAQ

What is the maximum supply voltage rating for LM119J/883?

The LM119J/883 has an absolute maximum total supply voltage of 36 V, with individual limits of ±15 V on V+ and V− terminals. Operation above ±15 V violates the Absolute Maximum Ratings and may cause permanent damage. For reliable long-term use, TI specifies ±15 V as the maximum operating supply voltage, and the device is fully characterized across that range in its Electrical Characteristics tables.

Does LM119J/883 support single-supply operation?

Yes, the LM119J/883 supports true single-supply operation from +5 V and ground. Its input common-mode range extends down to 1.0 V and up to 3.0 V under +5 V supply, and its open-collector outputs function correctly with pull-up to +5 V. This capability is explicitly documented in the "Electrical Characteristics SMD 8601401 DC Parameters" section and enables direct integration into 5 V logic systems without negative rail generation.

How many pins on LM119J/883 are internally connected?

Of the 14 pins in the CDIP package, only 8 are internally connected: Pins 1 (IN−1), 2 (IN+1), 3 (GND1), 4 (OUTPUT1), 5 (V−), 13 (GND2), 14 (OUTPUT2), 15 (IN−2), 16 (IN+2), and 17 (V+). Pins 6–12 and 18–20 are confirmed no-connect (N/C) with no die bond or internal routing - a design feature consistent across all LM119QML variants per TI's Package Number J0014A documentation.

Is LM119J/883 qualified for space applications?

The LM119J/883 is qualified to MIL-STD-883 Class B and rated for 100 krad(Si) total ionizing dose, but it is not certified for space flight. TI designates the LM119QML-SP variant - with additional screening, ceramic packaging, and radiation testing per NASA/ESA standards - for space applications. LM119J/883 is approved for military ground, airborne, and launch-phase systems only.

What is the output configuration of LM119J/883?

The LM119J/883 features two independent open-collector NPN output transistors - one per comparator - with no internal pull-up resistors. Each output (Pins 4 and 14) must be externally pulled up to V+, logic rail, or another voltage source to generate active-high logic levels. This architecture allows wired-OR logic, level translation, and direct drive of loads up to 25 mA, as confirmed in the "Description" and "Features" sections of the SNOSAN3B datasheet.

LM119J/883 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

LM119J/883 FAQ

1.How can I place an order for LM119J/883 through Aetrix?

Please submit a Request for Quotation (RFQ) for LM119J/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 LM119J/883 reliable?

The price and inventory of LM119J/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM119J/883 is usually 5 days.

3.What payment methods are accepted for LM119J/883?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM119J/883 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LM119J/883?

LM119J/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LM119J/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 LM119J/883?

For technical support, including LM119J/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM119J/883 requirements.

6.How does Aetrix verify that LM119J/883 is sourced from the original manufacturer or authorized distributors?

All LM119J/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 LM119J/883 meets industry standards.

7.What is the process for return or replacement of LM119J/883?

All LM119J/883 units undergo pre-shipment inspection (PSI). If there is an issue with LM119J/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 LM119J/883 part is unused and in its original packaging.

Return procedure for LM119J/883:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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