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Product Detailed Parameters
- Description：IC AMP BUFFER 8SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Applications：Buffer
- Output Type：-
- Number of Circuits：3
- Slew Rate：740V/µs
- Current - Supply：10.1 mA
- Current - Output / Channel：93 mA
- Voltage - Supply, Single/Dual (±)：3V ~ 5.5V
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：340 MHz
- Grade：-
- Qualification：-
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Overview
The TSH344IDT is a triple single-supply video buffer manufactured by STMicroelectronics. It features an internal gain of 6dB and a bandwidth of 340MHz. The device operates on a 3V to 5.5V supply, with typical operation at 5V. It guarantees a low output rail of 60mV max on a 150Ω load. Key electrical parameters include a slew rate of 740V/μs, input bias current of 16μA max, and supply current of 13mA per buffer. It is specified for 150Ω and 100Ω loads.
Feature Summary
- Triple channel architecture with matched 6dB internal gain
- High-speed performance with 340MHz bandwidth
- Low output rail capability near ground potential
- Single-supply operation optimized for 5V systems
Applications
- High-end video systems
- High definition TV (HDTV)
- Broadcast and graphic video
- Multimedia products
Procurement Notes
Verify the specific ordering suffix 'IDT' indicates tape and reel packaging rather than tube. Confirm the component status as active or obsolete through official STMicroelectronics channels before procurement. Ensure compatibility with the SO-8 package dimensions and thermal requirements for your design.
Selection Notes
Select this component when driving RGB signals from video DAC outputs without synchronization tips. It is suitable for applications requiring high bandwidth and low harmonic distortion. Consider the 150Ω load specification and single-supply constraints during circuit design.
Part Context
The TSH344 belongs to the TSH34x series of video buffers. It is designed to drive R-G-B video components on video lines. The device complements other models like the TSH343, which handles signals including synchronization tips. It utilizes an SO-8 plastic package for space-saving integration.
Replacement Considerations
Consult the TSH343 datasheet for applications involving Y-Pb-Pr signals or those requiring synchronization tip handling. Verify pinout and electrical characteristics against any alternative triple video buffers if considering a substitute part number.
FAQ
What is the maximum guaranteed low output voltage?
The low level output voltage is guaranteed to be 60mV max on a 150Ω load.
Does the TSH344 support AC output coupling?
No, it is not AC output coupled because it cannot sink an output current, making output series capacitors impossible.
What is the delay between channels?
There is no relative delay detected between channels when the same input signal is applied, due to symmetrical die geometry.
