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Product Detailed Parameters
- Description：IC OPAMP CFA 1 CIRC 8SOPWRPAD
- Series：LMH®, PowerWise®
- Mfr：National Semiconductor
- Package：Bulk
- Amplifier Type：Current Feedback
- Number of Circuits：1
- Output Type：Differential
- Slew Rate：2300V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：50 µA
- Voltage - Input Offset：-
- Current - Supply：29.1mA
- Current - Output / Channel：120 mA
- Voltage - Supply Span (Min)：4.5 V
- Voltage - Supply Span (Max)：12 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-PowerSOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO PowerPad
- -3db Bandwidth：900 MHz
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Overview
The LMH6553MRX/NOPB is a single-channel differential amplifier manufactured by Texas Instruments, formerly National Semiconductor. It operates within an automotive-grade temperature range of -40°C to +125°C and supports supply voltages from 4.5V to 12V. The device features a current feedback architecture with a bandwidth of 900 MHz and a common-mode rejection ratio (CMRR) of 82 dB. Input bias current is specified at 95 µA, while the operating supply current is 33 mA at ±5 V. It is housed in an 8-pin HSOIC EP package.
Feature Summary
- Provides fully differential amplification with integrated output limiting clamp functionality for signal protection.
- Features high common-mode rejection ratio to maintain signal integrity in noisy environments.
- Designed for automotive applications with extended temperature rating capabilities.
Applications
- Automotive video processing systems
- High-speed data acquisition circuits
- RF intermediate frequency stages
Procurement Notes
Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix /NOPB indicates lead-free and RoHS compliance. Ensure the package type matches the 8-pin HSOIC EP specification required for your PCB layout. Cross-reference the automotive grade temperature range requirements against your system specifications.
Selection Notes
Select this component when a single-channel differential amplifier with high bandwidth is required for automotive or industrial applications. Consider the 900 MHz bandwidth and 82 dB CMRR for high-fidelity signal conversion. Evaluate the 95 µA input bias current and 33 mA supply current against power constraints. Verify compatibility with the 4.5V to 12V supply voltage range.
Part Context
This part belongs to the LMH6553 series of differential amplifiers. It shares architectural similarities with other high-speed differential amplifiers in the family but is distinct in its single-channel configuration and automotive qualification. The device complements other TI high-speed analog components designed for video and communication interfaces.
Replacement Considerations
Check for direct substitutes such as the LMH6553SDX/NOPB, which offers similar electrical characteristics in an 8-WSON package. Verify pinout compatibility and thermal performance differences between the HSOIC EP and WSON packages before substitution.
