參數(shù)資料
型號： TLV2773CD
廠商： Texas Instruments, Inc.
英文描述： FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
中文描述： 2.7家庭- V高，擺率軌到軌輸出運算放大器具有關斷
文件頁數(shù)： 35/63頁
文件大?。?/td> 1148K
代理商： TLV2773CD
TLV277x, TLV277xA
FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS209F
–
JANUARY 1998
–
REVISED MARCH 2001
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
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 59. Output Offset Voltage Model
general configurations
When receiving low-level signals, limiting the bandwidth of the incoming signals into the system is often
required. The simplest way to accomplish this is to place an RC filter at the noninverting terminal of the amplifier
(see Figure 60).
VI
VO
C1
+
–
RG
RF
R1
f
–
3dB
1
2 R1C1
VO
VI
1
RF
RG
1
1
sR1C1
Figure 60. Single-Pole Low-Pass Filter
If even more attenuation is needed, a multiple pole filter is required. The Sallen-Key filter can be used for this
task. For best results, the amplifier should have a bandwidth that is 8 to 10 times the filter frequency bandwidth.
Failure to do this can result in phase shift of the amplifier.
VI
C2
R2
R1
C1
RF
RG
R1 = R2 = R
C1 = C2 = C
Q = Peaking Factor
(Butterworth Q = 0.707)
(
=
1
Q
2
–
)
RG
RF
_
+
f
–
3dB
1
2 RC
Figure 61. 2-Pole Low-Pass Sallen-Key Filter
相關PDF資料
PDF描述
TLV277X 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier Family
TLV2773AID FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
TLV2773ID FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
TLV2775AIDR FAMILY OF 2.7-HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
TLV2775AIDRG4 FAMILY OF 2.7-HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN
相關代理商/技術參數(shù)
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