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Texas Instruments 8418501HA
- Part No.:
- 8418501HA
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 10-CDFF
- Datasheet:
-
8418501HA.pdf
- Description:
- VIDEO AMPLIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:687
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Product details
Overview
8418501HA from Defense Supply Center Columbus is a MIL-STD-883 compliant, non-JAN Class B monolithic silicon two-stage differential video amplifier with differential input/output architecture, ±6 V supply operation, 10 ns propagation delay, and 100 kHz common-mode rejection ratio of ≥50 dB - deployed in military radar display interfaces and analog video signal conditioning circuits.
For engineers reviewing the 8418501HA datasheet, 8418501HA pinout, 8418501HA application, or 8418501HA equivalent, this part serves as a high-reliability, temperature-hardened video amplifier for legacy defense avionics and ground-based surveillance systems requiring stable gain control and wide common-mode input range (±6 V) across -55°C to +125°C ambient.
Technical Context
This device implements a two-stage differential amplifier topology with separate gain-adjust pins (GAIN ADJ 1A/1B and 2A/2B), enabling configurable voltage gain settings of 10×, 400×, or 100× depending on external pin interconnections. It supports dual-supply operation at ±6 V with absolute maximum ratings up to ±8 V.
The 8418501HA features a metal-can (outline I) hermetic package with 10 terminals, no internal reference buffer, and no AGC or REF OUT functionality - distinguishing it from device type 03 (TL027). Its output stage delivers ±1.2 V swing into 2 kΩ at 3.0 VP-P, with input offset current ≤30 µA and input bias current ≤40 µA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±6 V nominal; supports ±8 V absolute max - enables compatibility with legacy military dual-rail power systems. |
| Propagation Delay | 10 ns at +25°C, VOUT = 1 VP-P - ensures minimal timing skew in high-speed analog video path synchronization. |
| Common-Mode Rejection Ratio | ≥50 dB at f ≤ 100 kHz - maintains signal integrity against noise coupling in noisy platform environments. |
| Differential Voltage Gain (AV1) | 80–120 V/V at gain = 400 - provides precise amplification for low-level video signals without saturation. |
| Input Offset Current | ≤30 µA over -55°C to +125°C - reduces DC error accumulation in long-duration analog signal chains. |
| Output Voltage Swing | ±1.2 V into 2 kΩ load - matches standard ECL/TTL-compatible video interface levels. |
| Ambient Operating Range | -55°C to +125°C - qualified for deployment in airborne, vehicular, and shipboard defense platforms. |
Pinout & Package
8418501HA uses a hermetic metal-can package per MIL-STD-1835 outline I (MACY1-X10), 10-terminal configuration with glass-sealed leads and solderable tin-lead finish. Pin 1 is designated by dot marking; case H indicates flat-pack variant but 8418501HA specifically maps to outline I (can).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INPUT+ | Inverting input terminal for first-stage differential pair; referenced to common-mode voltage. |
| 2 | AGC | No connection (NC) for device type 01 - unused in 8418501HA; reserved for future gain-control variants. |
| 3 | GAIN ADJ 1A | Gain configuration node; tied to GAIN ADJ 1B to set gain = 400 (per Table I footnote 4). |
| 4 | GAIN ADJ 2A | Secondary gain configuration node; tied to GAIN ADJ 2B to set gain = 100 (per Table I footnote 2). |
| 5 | -VCC | Negative supply rail connection; must be decoupled locally to minimize PSRR degradation. |
| 6 | NC | No internal connection; electrically isolated - must remain unconnected on PCB. |
| 7 | OUTPUT+ | Differential positive output; complements OUTPUT- (Pin 12) for balanced video transmission. |
| 8 | OUTPUT- | Differential negative output; used with OUTPUT+ to reject common-mode interference. |
| 9 | NC | No internal connection; floating - avoid routing traces or vias to this pad. |
| 10 | +VCC | Positive supply rail connection; requires local 0.1 µF ceramic bypass capacitor to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Two-stage differential architecture | Enables high CMRR and low distortion in analog video paths without external feedback compensation. |
| Configurable gain via pin strapping | Three discrete gain modes (10×, 100×, 400×) selected by external jumpering - eliminates need for external resistors. |
| MIL-STD-883 Class B qualification | Includes burn-in, steady-state life test (1000 hrs @ +125°C), and group A/B/C/D screening - meets DoD logistics reliability requirements. |
| Hermetic metal-can packaging | Outline I (MACY1-X10) provides moisture resistance and EMI shielding critical for radar and EW systems. |
| Wide common-mode input range | ±6 V allows direct interfacing with legacy synch generator outputs and composite video sources without level-shifting. |
Applications
| Radar Video Signal Conditioning | Avionics Display Interface |
|---|---|
|
Use Scenario: Amplifying low-amplitude IF video pulses from pulse-Doppler radar receivers before digitization. IC Role / Device Role / Timing Role: Two-stage differential video amplifier providing gain stabilization and common-mode noise rejection in analog front-end chain. Use Value: Maintains pulse fidelity across -55°C to +125°C while rejecting platform-induced EMI due to hermetic can and ≥50 dB CMRR. |
Use Scenario: Driving cathode-ray tube (CRT) deflection and intensity modulation signals in legacy fighter jet HUDs. IC Role / Device Role / Timing Role: Differential output video driver ensuring matched rise/fall times (<12 ns) for synchronized horizontal/vertical sweep timing. Use Value: 10 ns propagation delay and ±1.2 V swing into 2 kΩ meet MIL-STD-188-100A CRT drive specifications. |
| Ground-Based Surveillance Monitor | Tactical Vehicle Video Multiplexer |
|
Use Scenario: Buffering and gain-setting analog composite video from multiple camera inputs prior to analog switch matrix. IC Role / Device Role / Timing Role: Precision video amplifier with pin-strapped gain to normalize signal levels across heterogeneous camera sensors. Use Value: Input offset current ≤30 µA prevents baseline drift during extended field deployments in desert or arctic conditions. |
Use Scenario: Combining video feeds from FLIR, day camera, and navigation displays into single analog output bus. IC Role / Device Role / Timing Role: Differential video amplifier isolating each channel's common-mode noise before multiplexing. Use Value: Dual-supply ±6 V operation enables seamless integration with existing vehicle power architecture without DC-DC conversion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar two-stage differential video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 8418501CA | Dual-in-line package (outline C, 14-pin CDIP); same electrical specs but different thermal resistance and lead pitch. | Preferred for through-hole prototyping and legacy board rework where socketing is required. | Select 8418501CA when mechanical mounting flexibility or hand-soldering access is needed over hermetic sealing. |
| UA733MJB | Commercial-grade version (non-MIL-STD-883); rated only to -25°C to +85°C; lacks burn-in and life-test validation. | Suitable for ground-test equipment or non-flight-critical lab instrumentation only. | Choose UA733MJB only for cost-sensitive development benches - not for deployed hardware subject to DoD procurement rules. |
Compared with 8418501CA and UA733MJB, the 8418501HA uniquely combines hermetic metal-can ruggedness, full military temperature range qualification, and pin-compatible gain configuration - making it the sole option for fielded systems requiring DSCC-approved sourcing and traceable lot-level conformance data.
Availability
8418501HA is available at Aetrix Electronics and suitable for radar video signal conditioning, avionics display interface, and ground-based surveillance monitor applications requiring stable component supply under MIL-PRF-38535 Class B compliance.
Supply support for 8418501HA 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
Defense Supply Center Columbus (DSCC) is a U.S. Department of Defense agency responsible for standard microcircuit drawings and logistics support for military electronics components.
The 84185 series defines standardized monolithic linear microcircuits for defense applications, with 8418501HA specifically engineered as a ruggedized, temperature-hardened differential video amplifier for analog signal integrity in mission-critical platforms.
FAQ
What is the operating temperature range for the 8418501HA?
The 8418501HA is qualified for ambient operating temperatures from -55°C to +125°C per MIL-PRF-38535 Appendix A and Table I of the drawing. Derating applies above +75°C: 6.5 mW/°C reduction in power dissipation. This range is validated through Group A, C, and D testing including 1000-hour steady-state life test at +125°C.
Does the 8418501HA include an internal voltage reference or AGC circuitry?
No. The 8418501HA does not incorporate an internal voltage reference or automatic gain control (AGC) circuitry. Pin 2 is labeled "AGC" in the generic pinout table but is designated NC (no connection) for device type 01. REF OUT functionality is exclusive to device type 03 (TL027), and no reference output is present in the 8418501HA.
What gain configurations are supported by the 8418501HA and how are they set?
The 8418501HA supports three gain modes: 10×, 100×, and 400×. Gain = 400 is set by connecting GAIN ADJ 1A (Pin 3) and GAIN ADJ 1B (Pin 11); gain = 100 by connecting GAIN ADJ 2A (Pin 4) and GAIN ADJ 2B (Pin 12); gain = 10 when all gain pins are left open. These configurations are defined in Table I footnotes 2, 4, and 5.
Is the 8418501HA pin-compatible with other device types in the 84185 family?
No. The 8418501HA (device type 01, outline I) has a 10-pin metal-can pinout distinct from 8418501CA (14-pin CDIP) and 8418503CA (20-pin CLCC). Terminal connections differ significantly - e.g., INPUT− is on Pin 14 in outline I but Pin 1 in outline C - so PCB layout changes are required for substitution.
What screening and qualification tests apply to the 8418501HA?
The 8418501HA undergoes full MIL-STD-883 screening: burn-in (Method 1015, +125°C), Group A (subgroups 1–6, 9), Groups C/D end-point electrical tests, and 1000-hour steady-state life test at +125°C. It complies with MIL-PRF-38535 Appendix A for non-JAN Class B devices and carries the "C" compliance mark per Section 3.5.1.
8418501HA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 10-CDFF
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Differential
- Output Type:
- Differential
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 16 mA
- Current - Output / Channel:
- 3.6 mA
- Voltage - Supply, Single/Dual (±):
- 8V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-CFP
8418501HA FAQ
1.How can I place an order for 8418501HA through Aetrix?
Please submit a Request for Quotation (RFQ) for 8418501HA 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 8418501HA reliable?
The price and inventory of 8418501HA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8418501HA is usually 5 days.
3.What payment methods are accepted for 8418501HA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8418501HA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8418501HA?
8418501HA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8418501HA 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 8418501HA?
For technical support, including 8418501HA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8418501HA requirements.
6.How does Aetrix verify that 8418501HA is sourced from the original manufacturer or authorized distributors?
All 8418501HA 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 8418501HA meets industry standards.
7.What is the process for return or replacement of 8418501HA?
All 8418501HA units undergo pre-shipment inspection (PSI). If there is an issue with 8418501HA, 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 8418501HA part is unused and in its original packaging.
Return procedure for 8418501HA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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