參數(shù)資料
型號： TLV2464AMJ
廠商： Texas Instruments, Inc.
英文描述： FAMILY OF LOW-POWER RAIL-TO-RAIL INPUT/OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
中文描述： 家庭的低功耗軌到軌輸入/輸出運算放大器，具有關(guān)斷
文件頁數(shù)： 25/58頁
文件大?。?/td> 1441K
代理商： TLV2464AMJ
SLOS220J JULY 1998 REVISED FEBRUARY 2004
25
WWW.TI.COM
PARAMETER MEASUREMENT INFORMATION
_
+
Rnull
RL
CL
Figure 48
APPLICATION INFORMATION
driving a capacitive load
When the amplifier is configured in this manner, capacitive loading directly on the output will decrease the
device’s phase margin leading to high frequency ringing or oscillations. Therefore, for capacitive loads of greater
than 10 pF, it is recommended that a resistor be placed in series (R
NULL
) with the output of the amplifier, as
shown in Figure 49. A minimum value of 20
should work well for most applications.
CLOAD
RF
Input
Output
RG
RNULL
_
+
Figure 49. Driving a Capacitive Load
offset voltage
The output offset voltage, (V
OO
) is the sum of the input offset voltage (V
IO
) and both input bias currents (I
IB
) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage:
VOO
VIO
1
RF
RG
IIB
RS
1
RF
RG
IIB–RF
+
VI
+
RG
RS
RF
IIB
VO
IIB+
Figure 50. Output Offset Voltage Model
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