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Analog Devices Inc. LT1192CJ8
- Part No.:
- LT1192CJ8
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
LT1192CJ8.pdf
- Description:
- IC AMP GENERAL PURPOSE 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,318
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Product details
Overview
LT1192CJ8 from Analog Devices (formerly Linear Technology) is an ultrahigh-speed voltage-feedback operational amplifier optimized for ±5V and single 5V supply video signal conditioning. It delivers 350MHz gain bandwidth, 450V/µs slew rate, ±50mA output drive, 90ns settling time to 0.1%, and differential gain/phase errors of 0.1% / 0.01° into 1kΩ - enabling precision cable driving in broadcast and instrumentation systems.
For engineers reviewing the LT1192CJ8 datasheet, LT1192CJ8 pinout, LT1192CJ8 application, or LT1192CJ8 equivalent, this page provides verified specifications, CERDIP-8 package details, shutdown functionality analysis, video driver design context, and validated alternative options for high-speed analog signal paths requiring stability at AV ≥ 5.
Technical Context
The LT1192CJ8 employs a decompensated voltage-feedback architecture stable only for closed-loop gains ≥ 5, with internal compensation optimized for minimal peaking (≤0.5dB at AV = 10) and controlled overshoot (4% at AV = 10 vs 50% at AV = 5). Its high open-loop gain (>100 V/mV at RL = 1kΩ) supports accurate active filtering and DC-coupled video gain stages.
It integrates a dedicated shutdown terminal (Pin 5) that reduces supply current to 1.3–2.0 mA while maintaining true high-impedance output (15 kΩ || feedback network), enabling multiplexed video routing without signal leakage. The C-grade version operates from 0°C to 70°C with guaranteed performance across the full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 350 MHz - enables stable closed-loop operation up to 70 MHz at AV = 5 with <0.5 dB peaking. |
| Slew Rate | 450 V/µs - supports clean 6 VP-P output transitions at >20 MHz full-power bandwidth. |
| Settling Time | 90 ns to 0.1% - meets broadcast video timing requirements for NTSC/PAL composite signals. |
| Differential Gain/Phase | 0.1% / 0.01° at RL = 1kΩ - preserves color fidelity in RGB and Y/C video distribution. |
| Output Drive | ±50 mA - drives 75 Ω double-terminated coaxial cables delivering 7.5 VP-P at ±5V supplies. |
| Shutdown Current | 1.3–2.0 mA - reduces power dissipation to 15 mW during inactive periods in multi-channel systems. |
| Input Noise | 9 nV/√Hz at 10 kHz - maintains SNR > 68 dB in low-level photodiode or pulse amplifier front-ends. |
Pinout & Package
LT1192CJ8 is housed in an 8-lead hermetic CERDIP (Ceramic Dual In-line Package) with 0.300-inch width, rated for 0°C to 70°C operation and 150°C max junction temperature. Pin 5 is dedicated to shutdown control; all other pins follow standard op-amp configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | BAL (Balance) | Offset nulling terminals - accept 1k–10kΩ potentiometer for ±20 mV input offset adjustment. |
| 2 | –IN | Inverting input - high-impedance node (5 MΩ common-mode, 16 kΩ differential) for feedback networks. |
| 3 | +IN | Non-inverting input - referenced to ground or common-mode bias for single-supply configurations. |
| 4 | V– | Negative supply rail - must be connected to –5V (dual) or 0V (single 5V) with proper bypassing. |
| 5 | SHDN | Shutdown control - pulled to V– to disable output and reduce supply current to ≤2.0 mA. |
| 6 | OUT | Amplifier output - capable of ±50 mA sink/source into 100 Ω loads with 3.7 V swing at ±5V supplies. |
| 7 | V+ | Positive supply rail - accepts +5V (single) or +5V (dual); requires 0.1 µF ceramic + 4.7 µF tantalum bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Video-optimized distortion performance | Differential gain/phase error of 0.1%/0.01° ensures broadcast-compliant color reproduction in RGB/YUV systems. |
| True high-Z shutdown mode | Output impedance remains 15 kΩ || feedback network during shutdown - prevents crosstalk in multiplexed video buses. |
| Single-supply 5V operation | Operates with V+ = 5V, V– = 0V and input common-mode range of 2 V to 3.5 V - simplifies power architecture in portable instruments. |
| Stable at AV ≥ 5 | Internally compensated for minimum gain of 5 - eliminates external compensation components in gain-of-5 video line drivers. |
| Low-cost CERDIP packaging | J8 package offers hermetic reliability and thermal performance (θJA = 100°C/W) at lower cost than metal-can alternatives. |
Applications
| RGB Video Distribution | High-Speed Pulse Amplification |
|---|---|
|
Use Scenario: Driving three parallel 75 Ω coaxial cables carrying red, green, and blue analog video signals from a graphics controller to display hardware. IC Role / Device Role / Timing Role: Precision unity-gain buffer with double termination (75 Ω series + 75 Ω shunt) to suppress reflections and preserve edge integrity at 15.75 kHz horizontal sync rates. Use Value: 90 ns settling time and 0.1% differential gain error maintain pixel-level color accuracy across 1080i resolution displays. |
Use Scenario: Amplifying fast-rising laser diode trigger pulses (10 ns rise time) in time-of-flight measurement systems. IC Role / Device Role / Timing Role: Inverting gain-of-5 pulse amplifier with 450 V/µs slew rate to preserve sub-10 ns pulse fidelity without overshoot-induced false triggering. Use Value: 50% overshoot at AV = 5 is actively managed via layout isolation and 20 Ω series output resistor per Murphy Circuits guidance. |
| Photo-Diode Transimpedance Stage | D/A Output Current-to-Voltage Conversion |
|
Use Scenario: Converting low-current outputs (100 nA–10 µA) from scientific photodiodes into high-bandwidth voltage signals for oscilloscope digitization. IC Role / Device Role / Timing Role: Low-noise (9 nV/√Hz), high-gain transimpedance amplifier with 10 kΩ–1 MΩ feedback resistors and guarded PCB layout. Use Value: Input bias current of ±0.5 µA minimizes dark-current-induced offset drift in low-light detection applications. |
Use Scenario: Converting current-mode outputs from high-speed DACs (e.g., LTC1590) into single-ended voltage signals for ADC sampling at >10 MSPS. IC Role / Device Role / Timing Role: Fast-settling I-to-V converter with 350 MHz GBW and 90 ns settling to support 12-bit accuracy at 10 MHz update rates. Use Value: ±50 mA output drive handles capacitive DAC output loading while maintaining monotonicity across full-scale transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1222CS8 | Higher GBW (500 MHz) but lower output drive (±20 mA); no shutdown pin; SO-8 only. | Lacks integrated shutdown and cannot drive 75 Ω cables to full amplitude - suited for PCB-local signal conditioning, not cable driving. | Select when maximum bandwidth is critical and load is purely resistive ≤ 600 Ω. |
| LT1191CN8 | Same J8-compatible pinout and shutdown function; 250 V/µs slew rate; 200 MHz GBW; lower cost. | Insufficient slew rate and bandwidth for 0.1% settling in >5 MHz video waveforms - limited to medium-speed instrumentation. | Choose for cost-sensitive, non-broadcast applications where 90 ns settling is not required. |
Compared with LT1192CJ8, LT1222CS8 trades cable-driving capability and power management for raw bandwidth, while LT1191CN8 sacrifices speed and video fidelity for economy - making LT1192CJ8 the only option meeting simultaneous requirements for 75 Ω drive, shutdown, and 0.1% settling in broadcast-grade systems.
Availability
LT1192CJ8 is available at Aetrix Electronics and suitable for RGB video distribution, high-speed pulse amplification, photodiode signal conditioning, D/A current-to-voltage conversion, and precision active filter design requiring stable component supply across industrial and test equipment lifecycles.
Supply support for LT1192CJ8 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
Analog Devices acquired Linear Technology in 2017 and maintains full technical and manufacturing continuity for legacy Linear op-amps including the LT1192 family.
The LT1192 product line was designed specifically for high-fidelity analog video signal processing - emphasizing differential gain/phase accuracy, cable-drive robustness, and shutdown-enabled multiplexing in broadcast, medical imaging, and automated test equipment.
FAQ
What is the operating temperature range for the LT1192CJ8?
The LT1192CJ8 is specified for commercial-grade operation from 0°C to 70°C ambient temperature. Its CERDIP package supports reliable long-term performance within this range, with a maximum junction temperature of 150°C and thermal resistance θJA = 100°C/W. This makes the LT1192CJ8 suitable for indoor instrumentation and broadcast gear where ambient conditions remain controlled.
Does the LT1192CJ8 support single-supply operation?
Yes, the LT1192CJ8 supports true single-supply operation at +5V with V– tied to ground. Its input common-mode range extends from 2 V to 3.5 V, and output swings to within 0.3 V of each rail under 1 kΩ load. Proper bypassing (0.1 µF ceramic + 4.7 µF tantalum) is required to achieve specified 90 ns settling time in single-supply configurations.
How does the shutdown feature of the LT1192CJ8 work?
The LT1192CJ8 shutdown is activated by pulling Pin 5 (SHDN) to the V– rail. This reduces supply current to 1.3–2.0 mA and places the output in a true high-impedance state (15 kΩ || feedback network), preventing signal leakage in multiplexed video buses. Turn-off time is 400 ns; turn-on time is 100 ns - both measured with 1 kΩ load.
Can the LT1192CJ8 drive 75 Ω coaxial cables directly?
Yes, the LT1192CJ8 delivers ±50 mA output current, enabling direct drive of double-terminated 75 Ω coaxial cables. With ±5V supplies, it sustains 7.5 VP-P output into 100 Ω loads and achieves 55 MHz –3 dB bandwidth in double-terminated configurations. For optimal performance, use 75 Ω series termination at the amplifier output and 75 Ω shunt termination at the receiver end.
Is the LT1192CJ8 pin-compatible with other packages in the LT1192 family?
No - the LT1192CJ8 uses an 8-lead CERDIP (J8) package with unique lead dimensions and thermal characteristics. While electrical pin functions match the N8 (PDIP) and S8 (SO) variants, mechanical compatibility is not guaranteed due to differing lead pitch, body size, and soldering profiles. Board redesign is required when migrating from N8 or S8 to J8.
LT1192CJ8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- General Purpose
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- 450V/µs
- Current - Supply:
- 32 mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply, Single/Dual (±):
- 4.75V ~ 16V, ±2.38V ~ 8V
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-CERDIP
LT1192CJ8 FAQ
1.How can I place an order for LT1192CJ8 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1192CJ8 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 LT1192CJ8 reliable?
The price and inventory of LT1192CJ8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1192CJ8 is usually 5 days.
3.What payment methods are accepted for LT1192CJ8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1192CJ8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1192CJ8?
LT1192CJ8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1192CJ8 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 LT1192CJ8?
For technical support, including LT1192CJ8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1192CJ8 requirements.
6.How does Aetrix verify that LT1192CJ8 is sourced from the original manufacturer or authorized distributors?
All LT1192CJ8 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 LT1192CJ8 meets industry standards.
7.What is the process for return or replacement of LT1192CJ8?
All LT1192CJ8 units undergo pre-shipment inspection (PSI). If there is an issue with LT1192CJ8, 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 LT1192CJ8 part is unused and in its original packaging.
Return procedure for LT1192CJ8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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