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HA-5190 Datasheet(PDF) 4 Page - Intersil Corporation |
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HA-5190 Datasheet(HTML) 4 Page - Intersil Corporation |
4 / 8 page 4 Application Information Power Supply Decoupling Although not absolutely necessary, it is recommended that all power supply lines be decoupled with 0.01 µF ceramic capacitors to ground. Decoupling capacitors should be located as near to the amplifier terminals as possible. Stability Considerations HA-5190/5195 is stable at gains > 5. Gains < 5 are covered below. Feedback resistors should be of carbon composition located as near to the input terminals as possible. Wiring Considerations Video pulse circuits should be built on a ground plane. Minimum point to point connections directly to the amplifier terminals should be used. When ground planes cannot be used, good single point grounding techniques should be applied. Output Short Circuit HA-5190/5195 does not have output short circuit protection. Short circuits to ground can be tolerated for approximately 10 seconds. Short circuits to either supply will result in immediate destruction of the device. Heavy Capacitive Loads When driving heavy capacitive loads (>100pF) a small resistor (100 Ω) should be connected in series with the output and inside the feedback loop. Typical Applications (Also see Application Notes AN525 and AN526) NOTE: Values were determined experimentally for optimum speed and settling time. RF and C1 should be optimized for each particular application to ensure best overall frequency response. FIGURE 3. SUGGESTED COMPENSATION FOR NONINVERTING UNITY GAIN AMPLIFIER IN + 750 Ω (NOTE) RF 11pF C1 OUT 200 Ω (NOTE) - IN + 1k Ω (NOTE) OUT 200 Ω 1k Ω (NOTE) - RF OUTPUT INPUT Vertical Scale: 2V/Div. Horizontal Scale: 100ns/Div . Vertical Scale: 2V/Div. Horizontal Scale: 100ns/Div OUTPUT INPUT HA-5190, HA-5195 |
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