Datasheet LT1194 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Video Difference Amplifier |
| 页数 / 页 | 12 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS. Output Voltage Step vs Settling … |
| 文件格式/大小 | PDF / 257 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. Output Voltage Step vs Settling Time. Small-Signal Transient Response
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LT1194
W U TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage Step vs Settling Time Small-Signal Transient Response Large-Signal Transient Response
4 VS = ±5V TA = 25°C RL = 1k 2 10mV TAGE STEP (V) 0 10mV –2 OUTPUT VOL LT1194 • TPC20 LT1194 • TPC21 RISE TIME = 10.8ns, PROPAGATION DELAY = 6ns RL = 150Ω, +SR = 430V/µs, –SR = 500V/µs –4 40 60 80 100 120 140 160 180 SETTLING TIME (ns) LT1194 • TPC19
U U W U APPLICATIO S I FOR ATIO
The LT1194 is a video difference amplifier with a fixed gain
Input Limiting
of 10 (20dB). The amplifier has two uncommitted high input impedance (+) and (–) inputs that can be used either differentially or single-ended. The LT1194 includes a OUTPUT limiting feature that allows the amplifier to reduce its output as a function of DC voltage on the BAL/VC pins. The limiting feature uses input differential-pair limiting to prevent overload in subsequent stages. This technique INPUT allows extremely fast limiting action.
Power Supply Bypassing
The LT1194 is quite tolerant of power supply bypassing. LT1194 • TA04 In some applications a 0.1µF ceramic disc capacitor 20dB INPUT OVERDRIVE, VC = –4.2V placed 1/2 inch from the amplifier is all that is required. 7
W U TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage Step vs Settling Time Small-Signal Transient Response Large-Signal Transient Response
4 VS = ±5V TA = 25°C RL = 1k 2 10mV TAGE STEP (V) 0 10mV –2 OUTPUT VOL LT1194 • TPC20 LT1194 • TPC21 RISE TIME = 10.8ns, PROPAGATION DELAY = 6ns RL = 150Ω, +SR = 430V/µs, –SR = 500V/µs –4 40 60 80 100 120 140 160 180 SETTLING TIME (ns) LT1194 • TPC19
U U W U APPLICATIO S I FOR ATIO
The LT1194 is a video difference amplifier with a fixed gain
Input Limiting
of 10 (20dB). The amplifier has two uncommitted high input impedance (+) and (–) inputs that can be used either differentially or single-ended. The LT1194 includes a OUTPUT limiting feature that allows the amplifier to reduce its output as a function of DC voltage on the BAL/VC pins. The limiting feature uses input differential-pair limiting to prevent overload in subsequent stages. This technique INPUT allows extremely fast limiting action.
Power Supply Bypassing
The LT1194 is quite tolerant of power supply bypassing. LT1194 • TA04 In some applications a 0.1µF ceramic disc capacitor 20dB INPUT OVERDRIVE, VC = –4.2V placed 1/2 inch from the amplifier is all that is required. 7