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LMH6574MAX Equivalent & Substitute Parts
Part Overview
The LMH6574MAX is a video multiplexer IC designed for 4:1 switching applications in video signal routing. This buffered interface component operates across single supply (6V to 12V) or dual supply (±3V to ±6V) configurations with a -3dB bandwidth of 500MHz, making it suitable for video processing and switching circuits.
The LMH6574MAX is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for legacy systems and new designs requiring this functional specification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer/Demultiplexer Circuit | 4:1 |
| Number of Channels | 1 |
| Voltage - Supply, Single (V+) | 6V ~ 12V |
| Voltage - Supply, Dual (V±) | ±3V ~ 6V |
| -3dB Bandwidth | 500MHz |
| Features | Buffered |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution of the LMH6574MAX is determined by the following critical parameters:
- Multiplexer Configuration: 4:1 switching topology with single channel operation
- Supply Voltage Compatibility: Single supply 6V to 12V or dual supply ±3V to ±6V
- Bandwidth Performance: -3dB bandwidth of 500MHz for video signal integrity
- Buffered Output: Active output buffering for signal conditioning
- Package Compatibility: 14-SOIC surface mount package with 0.154" (3.90mm) width
- Operating Temperature Range: -40°C to 85°C ambient temperature specification
The LMH6574MAX/NOPB is a direct functional equivalent meeting all electrical and mechanical parameters while offering improved product status and compliance certifications.
Parameter Comparison
| Parameter | LMH6574MAX | LMH6574MAX/NOPB |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Category | Interface | Interface |
| Multiplexer/Demultiplexer Circuit | 4:1 | 4:1 |
| Number of Channels | 1 | 1 |
| Voltage - Supply, Single (V+) | 6V ~ 12V | 6V ~ 12V |
| Voltage - Supply, Dual (V±) | ±3V ~ 6V | ±3V ~ 6V |
| -3dB Bandwidth | 500MHz | 500MHz |
| Features | Buffered | Buffered |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| Packaging | Tube | Tape & Reel (TR) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The LMH6574MAX/NOPB is the direct substitute for the obsolete LMH6574MAX. Both parts share identical electrical specifications and package geometry, ensuring pin-for-pin compatibility and functional equivalence in video multiplexer applications.
The LMH6574MAX/NOPB offers significant advantages for new designs and ongoing production:
- Active Product Status: Ensures long-term availability and manufacturing support from Texas Instruments
- ROHS3 Compliance: Meets current environmental and regulatory requirements for commercial and industrial applications
- Tape & Reel Packaging: Supports automated assembly processes and high-volume production workflows
- Maintained Specifications: Preserves all electrical performance characteristics including 500MHz bandwidth and buffered output configuration
For legacy systems currently using LMH6574MAX, direct replacement with LMH6574MAX/NOPB requires no circuit modifications or design changes due to complete electrical and mechanical compatibility.
Frequently Asked Questions (FAQ)
Q: Can LMH6574MAX/NOPB be used as a direct replacement for LMH6574MAX?
A: Yes. The LMH6574MAX/NOPB is a direct substitute with identical electrical specifications, operating parameters, and 14-SOIC package dimensions. No circuit modifications are required.
Q: What is the difference between LMH6574MAX and LMH6574MAX/NOPB?
A: The primary differences are product status, compliance certification, and packaging format. LMH6574MAX/NOPB is an active product with ROHS3 compliance and Tape & Reel packaging, while LMH6574MAX is obsolete with RoHS non-compliant status and tube packaging.
Q: Are there any supply voltage compatibility issues when substituting these parts?
A: No. Both parts support identical supply voltage ranges: single supply 6V to 12V or dual supply ±3V to ±6V. Existing power supply designs require no modification.
Q: Does the package change from tube to Tape & Reel affect circuit performance?
A: No. Tape & Reel packaging is a manufacturing and assembly format change only. The component itself, electrical performance, and PCB footprint remain identical to the tube-packaged version.
Q: What is the bandwidth specification for these video multiplexer ICs?
A: Both parts maintain a -3dB bandwidth of 500MHz, supporting high-frequency video signal switching and routing applications without performance degradation.
Q: Are there temperature range differences between the two parts?
A: No. Both parts operate across the identical temperature range of -40°C to 85°C ambient temperature, suitable for industrial and commercial applications.
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