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LT1203 Datasheet(PDF) 7 Page - Linear Technology |
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LT1203 Datasheet(HTML) 7 Page - Linear Technology |
7 / 16 page 7 LT1203/LT1205 TYPICAL PERFOR A CE CHARACTERISTICS Channel 1 Disable VS = ±15V RL = 1k LT1203/05 • TPC19 VS = ±15V RL = 1k Channel 1 Enable LT1203/05 • TPC20 Input Protection The logic inputs have ESD protection ( ≥2kV) and short- ing them to 12V or 15V will cause excessive current to flow. Limit the current to less than 50mA when driving the logic above 6V. The analog inputs are protected against ESD and overvoltage with internal SCRs. For inputs ≥±2.8V the SCRs will fire and the DC current should be limited to 20mA. Power Supplies The LT1203/LT1205 will operate from ±5V (10V total) to ±15V (30V total) and is specified over this range. Charac- teristics change very little over this voltage range. It is not necessary to use equal value supplies however, the output offset voltage will change. The offset will change about 300 µV per volt of supply mismatch. The LT1203/LT1205 have a very wide bandwidth yet are tolerant of power supply bypassing. The power supplies should be by- passed with a 0.1 µFor0.01µFceramiccapacitorwithin0.5 inch of the part. Circuit Layout Use a ground plane to ensure a low impedance ground is available throughout the PCB layout. Separate the inputs S APPLICATI I FOR ATIO LT1203 Channel-to-Channel Switching Transient with ground plane to ensure high channel separation. For minimum peaking, maximum bandwidth and maximum gain flatness sockets are not recommended because they can add considerable stray inductance and capacitance. If a socket must be used, use a low profile, low capacitance socket such as the SamTec ISO-308. Switching Transients The LT1203/LT1205 use input buffers to ensure switching transients do not couple to other video equipment sharing the input line. Output switching transients are about 50mVP-P with a 20ns duration and input transients are OUTPUT 50mV/DIV INPUT 20mV/DIV LOGIC (PIN 5) RS = 50Ω LT1203/05 • AI01 VINO = 1V VIN1 = 0V VINO = 1V VIN1 = 0V EN (PIN 6) VOUT (PIN 7) VOUT (PIN 7) EN (PIN 6) |
Similar Part No. - LT1203_15 |
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Similar Description - LT1203_15 |
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