The new ultra-high-speed current feedback amplifier SC7508 on Guoxin Sichen has a slew rate of up to 5500V s and a rise time of only 545PS, which is very suitable for use as a pulse amplifier. The high slew rate enables a large signal bandwidth of up to 440MHz to meet the requirements of high-resolution** graphics systems. Signal quality remains high over a wide bandwidth, with worst-case distortion of -40 dBc (250MHz, g=+10, 1vp-p).
The SC7508 is capable of delivering more than 175mA load current. When driving four ** loads, low differential gain and phase error (0., respectively) can be obtained02% and 004°）。The high drive capability is also reflected in its ability to deliver 10dBm output power with a spurious-free dynamic range (SFDR) of approximately -38dBc at 70MHz.
SC7508 Key Features:
1. Ultra-high speed.
Slew rate: 5500V s (4V step, g=+2).
Rise time: 545ps (2V step, g=+2).
Large signal bandwidth: 440MHz, g=+2;320mhz，g=+10
Small Signal Bandwidth (-3dB): 1GHz, G=+1;700mhz，g=+2
0.1% settling time: 10ns (2V step, g=+2).
2. Low distortion in a wide bandwidth range.
Spurious-free dynamic range (SFDR):
75dBC (10MHz, second harmonic).
88dBC (10MHz, 3rd harmonic).
71dB (70MHz, second harmonic).
69dB (70MHz, 3rd Harmonic).
3. Good ** specifications.
0.1dB gain flatness up to 75MHz
0.01% differential gain error, rl=150
0.01° differential phase error, rl=150
4. High output drive.
175mA output load drive current.
10dBm with an SFDR of 38dBC (70MHz, G=+10).
5. Power supply.
Supply voltage: +5V to -5V
Supply current: 20mA (typical).
The operational amplifier SC7508 can provide small SOIC-8 and SOT23-5 packages, and can work in the temperature range of -40 85, compatible with the replacement of AD8009, has certain advantages, Guoxin Sichen can provide technical support and temperature supply channels throughout the process.
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