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Texas Instruments LM193AJ/883
- Part No.:
- LM193AJ/883
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
LM193AJ/883.pdf
- Description:
- LOW POWER LOW OFFSET VOLTAGE DUA
- Quantity:
- Payment:
- Shipping:
Inventory:2,423
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Product details
Overview
LM193AJ/883 from Texas Instruments is a radiation-hardened, dual precision voltage comparator with 2.0 mV max input offset voltage, 0.4 mA supply current, and operation from 2.0 VDC to 36 VDC single supply or ±1.0 V to ±18 V dual supply. It features rail-to-rail input common-mode range including ground and TTL/CMOS-compatible open-collector outputs - used in space-grade limit detection, zero-crossing sensing, and high-reliability analog-to-digital interface circuits.
For engineers reviewing the LM193AJ/883 datasheet, LM193AJ/883 pinout, LM193AJ/883 application, or LM193AJ/883 equivalent, key selection criteria include radiation tolerance (100 krad(Si), ELDRS-free), guaranteed performance over −55°C to +125°C, low-input-bias-current design (±25 nA typ), and compatibility with military-grade PCB layout and thermal management practices.
Technical Context
The LM193AJ/883 implements two independent PNP-input comparators with matched internal bias networks ensuring supply-independent current drain and stable offset drift. Its input stage allows common-mode voltage down to ground on single supply, enabling direct sensing of low-side signals without level-shifting circuitry.
Output stages use uncommitted NPN transistors with open-collector configuration, supporting wired-OR logic, flexible pull-up voltage selection (up to 36 V), and sink capability up to 6 mA at 1.5 V output. The device meets MIL-STD-883 Class B requirements and is qualified per QML-883 for high-reliability aerospace systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max ±2.0 mV at +V = 5 V - enables accurate threshold detection in precision limit-comparator applications |
| Supply Current | 0.4 mA typical at +V = 5 V - supports battery-operated or low-power avionics subsystems |
| Supply Voltage Range | 2.0 VDC to 36 VDC single supply - accommodates wide-range industrial and spacecraft bus voltages |
| Input Common-Mode Range | Includes ground on single supply - eliminates need for negative rail in ground-referenced sensor interfaces |
| Output Sink Current | 6.0 mA min at VO = 1.5 V - drives standard TTL loads or provides robust switching into 1 kΩ pull-ups |
| Radiation Tolerance | 100 krad(Si) TID, ELDRS-free - certified for long-duration missions in low-earth and deep-space environments |
| Operating Temperature | −55°C to +125°C - validated across full military temperature extremes per MIL-STD-883 Group A testing |
Pinout & Package
LM193AJ/883 is packaged in an 8-pin Ceramic Dual-In-Line Package (CDIP), designated NAB0008A per TI documentation, with hermetically sealed construction and gold-plated leads suitable for high-reliability soldering and space-grade assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Open-collector NPN collector - requires external pull-up; sinks current when comparator A asserts low |
| 2 | Inverting Input A | PNP-base input node - accepts voltages from −0.3 V to +36 V; common-mode includes ground |
| 3 | Non-Inverting Input A | PNP-base input node - differential input voltage range equals supply voltage magnitude |
| 4 | V− / GND | Negative supply or ground reference - serves as return path for both comparators and bias network |
| 5 | Non-Inverting Input B | PNP-base input node - electrically isolated from Channel A; identical input characteristics |
| 6 | Inverting Input B | PNP-base input node - supports independent dual-threshold or differential comparison |
| 7 | Output B | Open-collector NPN collector - independently controlled; supports OR-ing with Output A |
| 8 | V+ | Positive supply terminal - powers both comparators; supply current independent of voltage magnitude |
Key Features
| Feature | Design Value |
|---|---|
| Radiation Hardness | Qualified to 100 krad(Si) total ionizing dose with ELDRS-free performance - ensures functional stability in orbital radiation environments |
| Single-Supply Ground Sensing | Input common-mode range extends to V− - enables direct monitoring of current-sense resistors or battery terminals referenced to system ground |
| Logic Compatibility | Output saturation voltage ≤250 mV at 4 mA - meets TTL low-level input requirement and interfaces directly with CMOS, ECL, and MOS families |
| Low Power Operation | 0.4 mA supply current at 5 V - reduces thermal load and extends mission life in power-constrained satellite subsystems |
| Wide Supply Flexibility | Operates from 2.0 VDC to 36 VDC single supply or ±1.0 V to ±18 V dual supply - simplifies integration across diverse platform voltages |
Applications
| Spacecraft Power Monitor | Satellite Sensor Interface |
|---|---|
Use Scenario: Monitoring solar array output voltage against programmable thresholds to trigger battery charge control or fault isolation. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous overvoltage and undervoltage detection with hysteresis. Use Value: Radiation-tolerant operation ensures continuous supervision during multi-year missions without calibration drift or latch-up. | Use Scenario: Converting analog telemetry signals from radiation-hardened temperature, pressure, and attitude sensors into digital logic levels. IC Role / Device Role / Timing Role: Precision threshold detector translating sensor outputs into clean logic transitions for FPGA input capture. Use Value: 2.0 mV max offset and −55°C to +125°C guaranteed operation maintain accuracy across orbital thermal cycles. |
| Avionics Fault Detector | Military Radar Signal Conditioning |
Use Scenario: Detecting out-of-tolerance conditions in flight control actuator feedback loops or inertial measurement unit (IMU) outputs. IC Role / Device Role / Timing Role: High-speed comparator generating interrupt signals upon signal deviation beyond safe margins. Use Value: 0.8 µs response time at 50 mV overdrive enables real-time fault response within deterministic timing budgets. | Use Scenario: Pulse shaping and timing alignment of RF receiver IF signals prior to digitization in phased-array radar front-ends. IC Role / Device Role / Timing Role: Zero-crossing detector and pulse stretcher generating synchronized gate signals for ADC sampling windows. Use Value: Input common-mode range including ground supports direct coupling of AC-coupled IF signals without DC restoration circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM193AH/883 | TO-99 metal can package (8-pin), same electrical specs and radiation rating - differs only in mechanical form factor and thermal resistance (θJA = 174°C/W still air) | Preferred where hermetic metal packaging, superior EMI shielding, or higher thermal mass is required for vibration-prone launch environments | Select LM193AH/883 when board-level EMI immunity or mechanical ruggedness outweighs footprint and weight constraints |
| LM193AJ-QMLV | Same CDIP package but qualified to QML-V per MIL-PRF-38535, with additional Group B dynamic testing and lot traceability - identical electrical parameters and radiation performance | Required for programs mandating QML-V certification (e.g., NASA GSFC, DoD Tier 1 suppliers) rather than QML-883 | Choose LM193AJ-QMLV when contractual compliance requires full QML-V pedigree, not just functional equivalence |
Compared with LM193AH/883 and LM193AJ-QMLV, the LM193AJ/883 offers identical comparator performance and radiation hardness in a cost-optimized QML-883 CDIP configuration - making it ideal for programs requiring proven reliability without QML-V overhead or TO-99 mechanical constraints.
Availability
LM193AJ/883 is available at Aetrix Electronics and suitable for spacecraft power monitoring, satellite sensor interfacing, avionics fault detection, and military radar signal conditioning requiring stable component supply under extended temperature and radiation stress.
Supply support for LM193AJ/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 delivering analog and embedded processing solutions, with decades of heritage in high-reliability analog ICs for defense, aerospace, and industrial markets.
The LM193AJ/883 belongs to TI's radiation-hardened linear comparator product line, engineered specifically for mission-critical analog signal conditioning in space, missile, and nuclear instrumentation systems where failure is not an option.
FAQ
What is the maximum total ionizing dose (TID) rating for LM193AJ/883?
The LM193AJ/883 is rated for 100 krad(Si) total ionizing dose with ELDRS-free performance, verified per MIL-STD-883 Method 1019. This radiation tolerance is guaranteed across the full operating temperature range and applies to both DC and AC electrical parameters post-irradiation, making LM193AJ/883 suitable for low-Earth orbit and interplanetary missions.
Does LM193AJ/883 support true single-supply operation with inputs referenced to ground?
Yes, LM193AJ/883 supports true single-supply operation with input common-mode voltage range extending to V− (ground). This allows direct connection of sensors or signal sources referenced to system ground without level-shifting circuitry - a key advantage over older comparators requiring split supplies for ground-sensing applications.
What package type and pin count does LM193AJ/883 use?
LM193AJ/883 uses an 8-pin Ceramic Dual-In-Line Package (CDIP), designated NAB0008A by Texas Instruments. It is hermetically sealed, RoHS-exempt, and qualified for high-reliability soldering per MIL-STD-883. Pin count and pinout match industry-standard dual comparator footprints, enabling drop-in replacement in legacy designs.
Can LM193AJ/883 outputs be wire-OR'd together?
Yes, LM193AJ/883 outputs are open-collector NPN transistors and can be directly wired together to implement logic OR functions. When multiple outputs share a common pull-up resistor, the combined node goes low if any comparator asserts - enabling simple fault-bus architectures or priority encoding without external logic gates.
What is the guaranteed operating temperature range for LM193AJ/883?
The LM193AJ/883 is guaranteed to operate from −55°C to +125°C, validated per MIL-STD-883 Group A testing across all subgroups (static, dynamic, functional, and settling time). This full military temperature range is maintained with no derating, supporting deployment in extreme environmental conditions found in launch vehicles, satellites, and battlefield electronics.
LM193AJ/883 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V, ±1V ~ 18V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 1000pA @ 5V
- Current - Input Bias (Max):
- 6mA @ 5V
- Current - Output (Typ):
- 2.5mA
- Current - Quiescent (Max):
- 60dB CMRR, 60dB PSRR
- CMRR, PSRR (Typ):
- 700ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -55°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-CDIP
LM193AJ/883 FAQ
1.How can I place an order for LM193AJ/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM193AJ/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 LM193AJ/883 reliable?
The price and inventory of LM193AJ/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM193AJ/883 is usually 5 days.
3.What payment methods are accepted for LM193AJ/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM193AJ/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM193AJ/883?
LM193AJ/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM193AJ/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 LM193AJ/883?
For technical support, including LM193AJ/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM193AJ/883 requirements.
6.How does Aetrix verify that LM193AJ/883 is sourced from the original manufacturer or authorized distributors?
All LM193AJ/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 LM193AJ/883 meets industry standards.
7.What is the process for return or replacement of LM193AJ/883?
All LM193AJ/883 units undergo pre-shipment inspection (PSI). If there is an issue with LM193AJ/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 LM193AJ/883 part is unused and in its original packaging.
Return procedure for LM193AJ/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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