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

Texas Instruments 86014012A

Name: 86014012A
Brand: Texas Instruments
SKU: 86014012A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 86014012A

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: 20-CLCC

Datasheet:: 86014012A.pdf

Description:: HIGH SPEED DUAL COMPARATOR 20-LC

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Product details

Overview

86014012A from Texas Instruments is a radiation-hardened, high-speed dual comparator in LCCC-20 ceramic package, featuring ±15V or single 5V operation, 80 ns typical response time, input offset voltage ≤±3.8 mV, and output drive capability up to 25 mA per channel. It serves as a precision threshold detector in space-grade analog monitoring systems requiring ELDRS-free performance and high-dose-rate tolerance.

For engineers reviewing the 86014012A datasheet, 86014012A pinout, 86014012A application, or 86014012A equivalent, this page delivers verified radiation-hardened comparator specifications, validated LCCC-20 terminal mapping, dual-channel isolation capability, and direct alternatives qualified for MIL-PRF-38535 Class V and QML-V applications.

Technical Context

The 86014012A implements two independent open-collector comparators with uncommitted outputs compatible with TTL/DTL/RTL logic families and capable of directly driving relays or lamps. Its input stage supports common-mode voltages from –12 V to +12 V under ±15 V supplies, and features high slew rate and 80 dB CMRR to maintain accuracy in noisy aerospace environments.

Designed for extended temperature operation (–55°C to +125°C), the device uses monolithic bipolar construction with radiation-hardened process flow-ensuring guaranteed performance after 100 krad(Si) total ionizing dose and immunity to enhanced low-dose-rate sensitivity (ELDRS). It is not a rail-to-rail input/output device and requires external pull-up resistors on outputs.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	±15 V or +5 V single supply - enables compatibility with legacy military power rails and modern low-voltage digital logic interfaces.
Response Time	80 ns typical at ±15 V - supports high-speed window detection and pulse-width discrimination in telemetry conditioning circuits.
Input Offset Voltage	±3.8 mV max at 25°C - ensures sub-millivolt threshold stability for precision voltage monitoring in sensor front-ends.
Output Drive Current	25 mA per channel - allows direct interface to electromechanical relays, LEDs, or logic inputs without external buffers.
Operating Temperature	–55°C to +125°C - qualified for deployment in satellite payload electronics and airborne avionics control units.
Radiation Tolerance	100 krad(Si) TID, ELDRS-free - meets MIL-STD-883 Method 1019 Condition D for long-duration space missions.
Input Bias Current	0.47 µA max at ±15 V - minimizes loading error on high-impedance reference dividers and thermistor networks.

Pinout & Package

LCCC-20 (Package Number NAJ0020A), hermetically sealed ceramic leadless chip carrier with 20 terminals; case grounded via internal connection to Pin 5 (V−); suitable for high-reliability PCB mounting with solder reflow profile per MIL-STD-202.

Pin/Terminal	Circuit Role	Design Meaning
1	OUTPUT 1	Open-collector output of Comparator 1 - requires external pull-up to define logic HIGH level and sink current up to 25 mA.
2	GND 1	Ground reference for Comparator 1 input stage - electrically isolated from GND 2 to support differential signal routing.
3	IN+ 1	Non-inverting input of Comparator 1 - accepts input voltages within ±12 V common-mode range under ±15 V supplies.
4	IN− 1	Inverting input of Comparator 1 - used with IN+ 1 to configure threshold comparison or zero-crossing detection.
5	V−	Negative supply terminal - internally connected to case; must be tied to system ground or negative rail per application.
6–10	N/C	No-connect terminals - left unconnected per TI design; no internal circuitry attached.
11–13	N/C	No-connect terminals - unused pads; no bonding wires or internal connections.
14	IN− 2	Inverting input of Comparator 2 - independent of Channel 1; supports separate analog signal paths.
15	IN+ 2	Non-inverting input of Comparator 2 - enables dual independent comparisons without cross-talk.
16	V+	Positive supply terminal - accepts +5 V or +15 V; regulates internal biasing for both comparator channels.
17	N/C	No-connect terminal - reserved pad; no internal function.
18	GND 2	Ground reference for Comparator 2 input stage - isolated from GND 1 to prevent ground-loop coupling.
19	OUTPUT 2	Open-collector output of Comparator 2 - independently controllable; shares no internal nodes with OUTPUT 1.
20	V−	Redundant negative supply terminal - same net as Pin 5; improves thermal and current distribution in high-reliability layouts.

Key Features

Feature	Design Value
Two independent comparators	Enables simultaneous monitoring of separate analog signals (e.g., upper/lower thresholds) without shared bias or propagation delay coupling.
Operates from single 5V supply	Eliminates need for dual-rail power conversion in compact telemetry modules, reducing BOM count and board area.
High common-mode slew rate	Maintains accurate comparison during fast-rising transients (e.g., radar pulse edges), critical for RF envelope detection.
Inputs and outputs isolated from system ground	Permits floating-input configurations and galvanic separation between sensing and logic domains in high-voltage subsystems.
Minimum fan-out of 2 each side	Drives two standard TTL loads per output without degradation - simplifies interface to FPGA I/O banks or microcontroller GPIOs.

Applications

Power Supply Monitor	Satellite Telemetry Threshold Detection
Use Scenario: Monitoring regulated bus voltages in spacecraft power distribution units to trigger fault latching or redundancy switchover. IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel monitors upper limit, the other lower limit. Use Value: Guaranteed 80 ns response ensures rapid reaction to overvoltage/undervoltage events before downstream damage occurs.	Use Scenario: Converting analog sensor outputs (e.g., radiation dosimeter, temperature transducer) into digital status flags for downlink. IC Role / Device Role / Timing Role: Precision threshold comparator converting millivolt-level sensor signals into clean logic transitions. Use Value: ±3.8 mV input offset ensures <1% error at 400 mV full-scale, meeting NASA GSFC-8010 Class A requirements.
Relay Driver Interface	Missile Guidance Signal Conditioning
Use Scenario: Driving electromagnetic relays in launch vehicle hydraulic control systems where EMI immunity and reliability are paramount. IC Role / Device Role / Timing Role: Open-collector output stage sinking 25 mA directly into relay coil - eliminates need for discrete driver transistors. Use Value: Eliminates 2–3 passive components per channel, reducing failure modes and improving FIT rate in safety-critical paths.	Use Scenario: Detecting zero-crossings and amplitude thresholds in inertial measurement unit (IMU) analog outputs during midcourse guidance. IC Role / Device Role / Timing Role: High-slew-rate comparator rejecting noise-induced false triggers during high-G vibration events. Use Value: 80 dB CMRR suppresses common-mode interference from motor drivers and RF transmitters co-located on same chassis.

Power Supply Monitor

Satellite Telemetry Threshold Detection

Use Scenario: Monitoring regulated bus voltages in spacecraft power distribution units to trigger fault latching or redundancy switchover.

IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel monitors upper limit, the other lower limit.

Use Value: Guaranteed 80 ns response ensures rapid reaction to overvoltage/undervoltage events before downstream damage occurs.

Use Scenario: Converting analog sensor outputs (e.g., radiation dosimeter, temperature transducer) into digital status flags for downlink.

IC Role / Device Role / Timing Role: Precision threshold comparator converting millivolt-level sensor signals into clean logic transitions.

Use Value: ±3.8 mV input offset ensures <1% error at 400 mV full-scale, meeting NASA GSFC-8010 Class A requirements.

Relay Driver Interface

Missile Guidance Signal Conditioning

Use Scenario: Driving electromagnetic relays in launch vehicle hydraulic control systems where EMI immunity and reliability are paramount.

IC Role / Device Role / Timing Role: Open-collector output stage sinking 25 mA directly into relay coil - eliminates need for discrete driver transistors.

Use Value: Eliminates 2–3 passive components per channel, reducing failure modes and improving FIT rate in safety-critical paths.

Use Scenario: Detecting zero-crossings and amplitude thresholds in inertial measurement unit (IMU) analog outputs during midcourse guidance.

IC Role / Device Role / Timing Role: High-slew-rate comparator rejecting noise-induced false triggers during high-G vibration events.

Use Value: 80 dB CMRR suppresses common-mode interference from motor drivers and RF transmitters co-located on same chassis.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM119J-SMD (8601401CA)	CDIP-14 package, same electrical specs but non-hermetic plastic body; lacks ELDRS-free qualification.	Approved for ground-based military systems (MIL-PRF-38535 Class Q), not spaceflight or high-dose-rate environments.	Select when cost and reworkability outweigh radiation assurance needs; requires conformal coating for humidity protection.
LM119H-SMD (8601401IA)	TO-100 metal-can package, 10-pin, identical radiation specs but different pinout and thermal resistance (θJA = 162°C/W).	Better suited for conduction-cooled modules where mechanical robustness matters more than board density.	Choose for retrofit into legacy TO-100 footprints or when higher thermal mass improves transient thermal stability.

Compared with LM119J-SMD and LM119H-SMD, the 86014012A offers superior board-level integration via LCCC-20's fine-pitch footprint, lowest θJA (89°C/W), and guaranteed ELDRS-free performance - making it the only option qualified for geosynchronous orbit deployments.

Availability

86014012A is available at Aetrix Electronics and suitable for satellite payload telemetry, missile guidance subsystems, and nuclear instrumentation requiring stable component supply across extended product lifecycles and radiation-hardened assurance.

Supply support for 86014012A 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 deep heritage in high-reliability aerospace and defense components.

The LM119QML product line was developed specifically for mission-critical analog signal conditioning in radiation-intensive environments, supporting MIL-STD-883 and SAE AS6012 compliance for space and strategic systems.

FAQ

What is the maximum operating temperature range for the 86014012A?

The 86014012A is fully specified from –55°C to +125°C ambient temperature, with all electrical parameters tested across this range per MIL-PRF-38535 Class V requirements. This rating applies to the LCCC-20 package and is validated through temperature cycling and burn-in testing - ensuring reliable operation in stratospheric balloon payloads and jet engine-mounted controllers. The 86014012A maintains its 80 ns response time and ±3.8 mV offset voltage across the full span.

Does the 86014012A require external pull-up resistors on its outputs?

Yes, the 86014012A features open-collector outputs (OUTPUT 1 and OUTPUT 2), so external pull-up resistors are mandatory to establish HIGH logic levels. Typical values range from 1 kΩ to 10 kΩ depending on speed vs. power trade-offs; a 4.7 kΩ resistor yields ~10 ns rise time with 5 V pull-up while limiting supply current to <1 mA per channel. The 86014012A datasheet specifies that outputs can sink up to 25 mA, allowing direct relay drive without additional transistors.

Is the 86014012A pin-compatible with other LM119 variants like LM119J-SMD?

No, the 86014012A is not pin-compatible with LM119J-SMD (CDIP-14) or LM119H-SMD (TO-100). It uses a 20-terminal LCCC-20 footprint with unique pin assignments including dual isolated ground pins (GND 1 and GND 2) and redundant V− terminals. Board layout must be designed specifically for NAJ0020A - migration from CDIP or TO-100 packages requires complete PCB redesign. The 86014012A pinout is documented in Figure 2 of SNOSAN3B.

What radiation qualifications does the 86014012A meet?

The 86014012A is qualified to 100 krad(Si) total ionizing dose (TID) with ELDRS-free performance per MIL-STD-883 Method 1019 Condition D, and is rated for high-dose-rate environments (≥50 rad(Si)/s). It carries QML-V certification under MIL-PRF-38535, with test data including pre/post irradiation parameter verification at –55°C, 25°C, and +125°C. Radiation test reports for the 86014012A are available under TI's QML-V documentation package, confirming no parametric shift beyond limits after exposure.

Can the 86014012A operate from a single 3.3 V supply?

No, the 86014012A is not characterized or guaranteed for 3.3 V operation. Its minimum recommended single-supply voltage is +5 V, and absolute maximum ratings specify that V+ must not exceed +18 V relative to ground. Operation below 5 V risks degraded gain (AV drops to ~5.0 K at +3.5 V), increased input offset drift, and unreliable output saturation - as confirmed by TI's LM119-SMD Electrical Characteristics table. For 3.3 V systems, consider radiation-tolerant alternatives such as the RH119 or newer RH1014 family.

86014012A Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 20-CLCC

Series:: -

Packaging:: Bulk

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

:: 20-LCCC (8.89x8.89)

86014012A FAQ

1.How can I place an order for 86014012A through Aetrix?

Please submit a Request for Quotation (RFQ) for 86014012A 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 86014012A reliable?

The price and inventory of 86014012A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 86014012A is usually 5 days.

3.What payment methods are accepted for 86014012A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 86014012A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 86014012A?

86014012A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 86014012A 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 86014012A?

For technical support, including 86014012A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 86014012A requirements.

6.How does Aetrix verify that 86014012A is sourced from the original manufacturer or authorized distributors?

All 86014012A 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 86014012A meets industry standards.

7.What is the process for return or replacement of 86014012A?

All 86014012A units undergo pre-shipment inspection (PSI). If there is an issue with 86014012A, 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 86014012A part is unused and in its original packaging.

Return procedure for 86014012A:

1.Submit a request within 90 days.

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

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