LM6171AIN National Semiconductor, LM6171AIN Datasheet - Page 17

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LM6171AIN

Manufacturer Part Number
LM6171AIN
Description
IC AMP HI SPD LOW PWR V FB 8-DIP
Manufacturer
National Semiconductor
Series
PowerWise®, VIP™ IIIr
Datasheet

Specifications of LM6171AIN

Amplifier Type
Voltage Feedback
Number Of Circuits
1
Slew Rate
3600 V/µs
Gain Bandwidth Product
100MHz
-3db Bandwidth
160MHz
Current - Input Bias
1µA
Voltage - Input Offset
1500µV
Current - Supply
2.5mA
Current - Output / Channel
116mA
Voltage - Supply, Single/dual (±)
5.5 V ~ 34 V, ±2.75 V ~ 17 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Other names
*LM6171AIN

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM6171AIN
Manufacturer:
NS
Quantity:
1 497
Part Number:
LM6171AIN
Manufacturer:
TI
Quantity:
1 500
Application Information
composition-type resistors and mica-type capacitors. Sur-
face mount components are preferred over discrete compo-
nents for minimum inductive effect.
Large values of feedback resistors can couple with parasitic
capacitance and cause undesirable effects such as ringing
or oscillation in high speed amplifiers. For LM6171, a feed-
back resistor of 510Ω gives optimal performance.
COMPENSATION FOR INPUT CAPACITANCE
The combination of an amplifier’s input capacitance with the
gain setting resistors adds a pole that can cause peaking or
oscillation. To solve this problem, a feedback capacitor with
a value
can be used to cancel that pole. For LM6171, a feedback
capacitor of 2 pF is recommended. Figure 1 illustrates the
compensation circuit.
POWER SUPPLY BYPASSING
Bypassing the power supply is necessary to maintain low
power supply impedance across frequency. Both positive
and negative power supplies should be bypassed individu-
ally by placing 0.01 µF ceramic capacitors directly to power
supply pins and 2.2 µF tantalum capacitors close to the
power supply pins.
FIGURE 1. Compensating for Input Capacitance
FIGURE 2. Power Supply Bypassing
C
F
>
(R
G
x C
01233612
IN
)/R
F
(Continued)
01233611
17
TERMINATION
In high frequency applications, reflections occur if signals
are not properly terminated. Figure 3 shows a properly ter-
minated signal while Figure 4 shows an improperly termi-
nated signal.
FIGURE 4. Improperly Terminated Signal
FIGURE 3. Properly Terminated Signal
01233614
01233615
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