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Texas Instruments 8601401IA
- Part No.:
- 8601401IA
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- TO-100-10 Metal Can
- Datasheet:
-
8601401IA.pdf
- Description:
- HIGH SPEED DUAL COMPARATOR 10-TO
- Quantity:
- Payment:
- Shipping:
Inventory:3,797
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Product details
Overview
8601401IA from Texas Instruments is a radiation-hardened, high-speed dual comparator in TO-100 metal-can package (LME0010C), 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 space-grade power sequencing, radiation-tolerant telemetry interfaces, and military avionics monitoring circuits.
For engineers reviewing the 8601401IA datasheet, 8601401IA pinout, 8601401IA application, or 8601401IA equivalent, this page delivers verified radiation-tested specifications, TO-100 terminal mapping, real-world use cases in harsh-environment systems, and validated alternative options for QMLV-compliant designs.
Technical Context
The 8601401IA implements two independent, high-gain comparators with differential inputs isolated from system ground, enabling floating-sense applications. Its architecture supports wide common-mode input range (±12 V at ±15 V supplies) and high slew rate, critical for fast edge detection in analog front-ends exposed to ionizing radiation.
Designed for MIL-STD-883 Class B testing, it meets 100 krad(Si) total ionizing dose (TID) and ELDRS-free performance per 5962-9679802 requirements. Input bias current remains ≤0.95 µA over −55°C to +125°C, and output saturation voltage is ≤1.5 V at 25 mA load under ±15 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±15 V or single 5 V - enables compatibility with legacy TTL/RTL logic and modern low-voltage control rails |
| Response Time | 80 ns typical at ±15 V - supports high-speed window detection and pulse-width discrimination in real-time systems |
| Input Offset Voltage | ±3.8 mV max at 25°C - ensures accurate threshold setting without external trimming in precision sensing |
| Output Sink Current | 25 mA - directly drives relays, LEDs, or TTL inputs without external buffer stages |
| Operating Temperature | −55°C to +125°C - qualified for extended-range deployment in spacecraft, missile guidance, and ground-based radar |
| Radiation Tolerance | 100 krad(Si) TID, ELDRS-free - certified for long-duration missions in geosynchronous and deep-space environments |
| Input Bias Current | 0.95 µA max over full temperature range - minimizes loading error on high-impedance sensor sources |
Pinout & Package
8601401IA uses the TO-100 metal-can package (LME0010C), 10-pin, hermetically sealed, with case connected to Pin 5 (V−). Package height ≤5.72 mm; lead diameter ≤1.397 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− 1 | Inverting input for comparator 1 - referenced to system ground or floating node |
| 2 | GND 1 | Ground reference for comparator 1 inputs - electrically isolated from comparator 2 ground |
| 3 | IN+ 1 | Non-inverting input for comparator 1 - accepts signals up to ±12 V common-mode range |
| 4 | N/C | No connection - internal die pad not bonded; must remain unconnected on PCB |
| 5 | V− | Negative supply rail - case is internally tied to this pin; requires thermal and electrical grounding |
| 6 | N/C | No connection - unused internal node; leave unconnected |
| 7 | N/C | No connection - reserved for process/test; no PCB trace required |
| 8 | N/C | No connection - internal test node; must be left floating |
| 9 | OUTPUT 1 | Open-collector output for comparator 1 - requires external pull-up to V+ or logic rail |
| 10 | OUTPUT 2 | Open-collector output for comparator 2 - independently configurable with separate pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Two independent comparators | Enables dual-threshold detection (e.g., overvoltage + undervoltage) in single-package footprint |
| Uncommitted collector outputs | Supports mixed-voltage interfacing - outputs can be pulled up to 3.3 V, 5 V, or 15 V rails |
| Single 5 V supply operation | Eliminates need for negative rail in digital-system monitoring, reducing power supply complexity |
| High common-mode slew rate | Maintains accuracy during fast-rising transients in motor drive feedback or radar pulse detection |
| Inputs/outputs isolated from system ground | Permits floating measurements across isolated power domains without level-shifting circuitry |
Applications
| Power Sequencing Monitor | Telemetry Signal Thresholding |
|---|---|
|
Use Scenario: Monitoring voltage ramps during startup of radiation-hardened FPGAs and microprocessors in satellite payloads. IC Role / Device Role / Timing Role: Dual comparator performs precise window detection on 1.2 V core and 3.3 V I/O rails with independent fault flags. Use Value: Ensures safe power-up sequence before clock enable; eliminates risk of latch-up due to out-of-spec voltage ordering. |
Use Scenario: Converting analog telemetry signals (e.g., temperature, pressure) into digital status bits for downlink transmission. IC Role / Device Role / Timing Role: Comparator 1 detects upper limit (e.g., >85°C), Comparator 2 detects lower limit (e.g., <−40°C) - generating discrete alarm states. Use Value: Reduces downlink bandwidth by transmitting only binary alerts instead of full ADC data streams. |
| Avionics Sensor Interface | Radiation-Detection Pulse Discrimination |
|
Use Scenario: Interfacing with isolated bridge sensors in flight control surface position feedback systems. IC Role / Device Role / Timing Role: Floating-input configuration allows direct connection to Wheatstone bridge outputs without ground-loop interference. Use Value: Maintains signal integrity in EMI-heavy cockpit environments while meeting DO-160 lightning surge requirements. |
Use Scenario: Processing pulses from solid-state radiation detectors in nuclear instrumentation modules. IC Role / Device Role / Timing Role: High-speed 80 ns response discriminates between background noise and true particle-induced pulses above defined amplitude thresholds. Use Value: Enables real-time dose-rate calculation with minimal latency, critical for astronaut safety interlocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962R9679802VIA | Same TO-100 package, ELDRS-free variant per 5962-9679802 spec; identical pinout and DC specs | Qualified for enhanced low-dose-rate sensitivity testing (MIL-STD-883 Test Method 1019, Condition D) | Select when mission profile includes prolonged exposure to low-dose-rate space radiation (e.g., GEO orbit) |
| LM119H/883 | TO-100 package, MIL-STD-883 Class B qualified; same pinout but non-radiation-hardened DC limits | Lacks 100 krad(Si) TID certification and ELDRS-free validation; rated for terrestrial military use only | Choose for cost-sensitive ground-based defense systems where radiation tolerance is not required |
Compared with 5962R9679802VIA, the 8601401IA shares identical radiation hardness and pinout but reflects TI's SMD-qualified production release; versus LM119H/883, it adds verified post-irradiation parametric stability essential for orbital longevity.
Availability
8601401IA is available at Aetrix Electronics and suitable for radiation-tolerant power sequencing, spacecraft telemetry conditioning, and avionics sensor interface applications requiring stable component supply across extended product lifecycles.
Supply support for 8601401IA 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, embedded processing, and high-reliability components for aerospace, defense, and industrial markets.
The LM119QML family was engineered for mission-critical analog signal conditioning in radiation-exposed environments, delivering speed, precision, and qualification rigor unmatched by commercial comparators.
FAQ
What is the maximum operating junction temperature for the 8601401IA?
The 8601401IA has a maximum junction temperature (TJ) of 150°C, consistent with its TO-100 metal-can package and MIL-STD-883 Class B thermal qualification. This rating applies across the full −55°C to +125°C ambient range when derated per θJA = 162°C/W (still air) and power dissipation ≤500 mW. Thermal design must ensure case-to-ambient path accommodates worst-case dissipation in sealed enclosures.
Does the 8601401IA require external pull-up resistors on its outputs?
Yes, the 8601401IA features open-collector outputs (OUTPUT 1 and OUTPUT 2), requiring external pull-up resistors to a valid logic or supply rail. Typical values range from 1 kΩ to 10 kΩ depending on rise time and load capacitance. Pull-up to V+ (e.g., +15 V) enables direct TTL/DTL interfacing; pull-up to 3.3 V or 5 V supports mixed-voltage systems without level shifters.
Is the 8601401IA pin-compatible with other LM119 variants in TO-100 packages?
Yes, the 8601401IA shares identical pinout, terminal functions, and mechanical dimensions with all LM119 TO-100 variants including LM119H-SMD, LM119H/883, and 5962R9679802VIA. The LME0010C outline and 10-pin assignment are standardized across these QMLV- and MIL-qualified versions, enabling drop-in replacement where radiation requirements align.
What is the input voltage range specification for the 8601401IA at 5 V single-supply operation?
At +5 V supply (−VCC = 0 V), the 8601401IA specifies an input voltage range of +1.0 V to +3.0 V per the SMD 8601401 DC parameters table. This constrained common-mode range ensures stable operation and guaranteed output switching when used with standard 5 V logic-level references and sensors, avoiding input stage saturation near supply rails.
How does the 8601401IA handle radiation-induced parameter shifts?
The 8601401IA is characterized for post-100 krad(Si) irradiation performance: input offset voltage remains within ±4.0 mV, and input bias current stays ≤1.0 µA at 25°C. These limits are verified per MIL-STD-883 Test Method 1019, Condition A, confirming functional stability after total ionizing dose exposure - critical for multi-year satellite missions.
8601401IA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-100-10 Metal Can
- Series:
- -
- Packaging:
- Tray
- 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):
- 80dB CMRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- TO-100-10
8601401IA FAQ
1.How can I place an order for 8601401IA through Aetrix?
Please submit a Request for Quotation (RFQ) for 8601401IA 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 8601401IA reliable?
The price and inventory of 8601401IA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8601401IA is usually 5 days.
3.What payment methods are accepted for 8601401IA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8601401IA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8601401IA?
8601401IA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8601401IA 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 8601401IA?
For technical support, including 8601401IA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8601401IA requirements.
6.How does Aetrix verify that 8601401IA is sourced from the original manufacturer or authorized distributors?
All 8601401IA 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 8601401IA meets industry standards.
7.What is the process for return or replacement of 8601401IA?
All 8601401IA units undergo pre-shipment inspection (PSI). If there is an issue with 8601401IA, 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 8601401IA part is unused and in its original packaging.
Return procedure for 8601401IA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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