kh561 Fairchild Semiconductor, kh561 Datasheet
kh561
Related parts for kh561
kh561 Summary of contents
Page 1
... With the output current internally limited to 250mA, the KH561 is fully protected against shorts to ground and can, with the addition of a series limiting resistor at the output, withstand shorts to the ±15V supplies. The KH561 has been designed for maximum flexibility in a wide variety of demanding applications ...
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... The actual gain to the matching 50Ω load used in these specifications is half of this (+5). The KH561 requires an external compensation capacitor. Unless otherwise noted, this has been set to 10.5pF for the frequency domain specifications (yielding a maximally flat frequency response) and 12.5pF for the time domain specifications (yielding a 0% small signal pulse overshoot response) ...
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... KH561 KH561 Electrical Characteristics PARAMETERS Case Temperature Case Temperature TIME DOMAIN RESPONSE (0% Overshoot Compensation) rise and fall time 2V step 10V step settling time to 0.5% (time <1µs) long term thermal tail (time >1µs) slew rate overshoot maximally flat compensation 0% overshoot compensation EQUIVALENT INPUT NOISE ...
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... DATA SHEET KH561 Typical Performance Characteristics Small Signal Gain and Phase 10dBm o 14 Maximally Flat 0% Overshoot 12 10 Gain Phase 100 150 200 250 Frequency (MHz) Frequency Response vs -4dBm 25Ω 50Ω 75Ω 100Ω ...
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... KH561 KH561 Typical Performance Characteristics Small Signal Pulse Response Maximally Flat Compensation 1.2 0.8 0% Overshoot Compensation 0.4 0 -0.4 -0.8 -1.2 Time (2ns/div) Settling Time into 50Ω Load 2.0 5V Output Step 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2 Time (sec) Settling Time into 50pF Load 2.0 5V Output Step 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2 ...
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... The KH561 has been intentionally designed to have a low internal gain and a current mode output in order that an equivalent ...
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... Figure 3 steps through the output impedance develop- ment using an equivalent model of Figure 2. Offering an equivalent, non-zero, output impedance into a matched load allows the KH561 to operate at lower internal volt- age swings for a given desired swing at the load. This allows higher voltage swings to be delivered at the load ...
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... But it does provide a simplified means of getting to the external terminal characteristics. External Compensation Capacitor (C As shown in the test circuit of Figure 1, the KH561 requires an external compensation capacitor from the output to pin 19. The recommended values described here assume that a maximally flat frequency response into a matched load is desired ...
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... An excellent 5pF to 20pF trimmer cap for this is a Sprague-Goodman part #GKX20000. When the KH561 is used to drive a capacitive load, such as an ADC or SAW device, the load will act to compen- sate the response along with C . Generally, considerably ...
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... DC level to the load includes the voltage divider between R and R . Also note that for the KH561, as well for all current feedback amplifiers, the non-inverting and inverting bias currents do not track each other in either magnitude or polarity ...
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... KH561’s supply pins as possible to a low inductance ground plane. Evaluation Boards: An evaluation board (showing a good high frequency lay- out) for the KH561 is available ...
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... Case Temperature • circult ca θ = 35°C/W for the KH561 with no heatsink in still air 20°C/W • j( output transistor junction temperature 200°C/W • j(q) c ...
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... DATA SHEET KH561 Package Dimensions Pin #1 Index Symbol DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICES TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...