ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：LF198JAN MONOLITHIC SAMPLE AND H
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Amplifier Type：-
- Number of Circuits：-
- Output Type：-
- Slew Rate：-
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：-
- Current - Supply：-
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：-
- Voltage - Supply Span (Max)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-99-8 Metal Can
- Supplier Device Package：TO-99-8
- -3db Bandwidth：-
Download product information
Overview
The JM38510/12501BGA is a monolithic sample-and-hold circuit manufactured by Texas Instruments under the LF198JAN designation. It features a JFET-input operational amplifier architecture with an internal hold capacitor, designed for high-speed data acquisition and signal processing applications. The device operates within a military temperature range of -55°C to +125°C and utilizes a 20-lead ceramic flatpack (CFP) package. Key electrical characteristics include low input bias current, high slew rate, and precise voltage tracking capabilities essential for analog-to-digital conversion interfaces.
Feature Summary
- Integrated sample-and-hold functionality combining a high-performance FET-input op amp with an internal storage capacitor
- Military-grade reliability and radiation hardness suitable for harsh environmental conditions
- High-speed acquisition and low droop rate for accurate signal capture in dynamic systems
Applications
- Analog-to-digital converter front-end conditioning
- High-speed waveform digitization systems
- Precision instrumentation and measurement equipment
- Radar and electronic warfare signal processing
Procurement Notes
Verify the specific manufacturer source, as this part number is often sourced through authorized distributors or specialized semiconductor providers like Rochester Electronics. Confirm that the component meets all MIL-PRF-38534 specifications and requires appropriate handling procedures due to its ceramic packaging and military classification. Ensure compatibility with existing system thermal and mechanical constraints before integration.
Selection Notes
Select this component when a combined sample-and-hold function is required without external discrete capacitors. It is ideal for designs demanding high input impedance and minimal charge injection. Consider the package size and pinout compatibility with your PCB layout. Evaluate the trade-off between acquisition speed and power consumption relative to other available military-grade S/H circuits.
Part Context
This component belongs to the LF198 family of monolithic sample-and-hold amplifiers. It is a standardized military version of commercial parts, offering enhanced durability and performance consistency. The JM38510 series denotes compliance with specific military procurement standards, ensuring traceability and quality control for defense and aerospace applications.
Replacement Considerations
Direct replacements may include other military-grade sample-and-hold amplifiers from manufacturers such as Analog Devices or Maxim Integrated, provided they match the pinout and electrical specifications. Verify functional equivalence regarding acquisition time, aperture delay, and hold mode accuracy.
