參數(shù)資料
型號: 5962-9080703QPA
廠商: TEXAS INSTRUMENTS INC
元件分類: 運算放大器
英文描述: OP-AMP, 3100 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, CDIP8
封裝: CERAMIC, DIP-8
文件頁數(shù): 53/81頁
文件大小: 1788K
代理商: 5962-9080703QPA
TLE206x, TLE206xA, TLE206xB
EXCALIBUR JFET INPUT HIGHOUTPUT DRIVE
POWER OPERATIONAL AMPLIFIERS
SLOS193B FEBRUARY 1997 REVISED MAY 2004
57
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
input characteristics
The TLE206x, TLE206xA, and TLE206xB are specified with a minimum and a maximum input voltage that if
exceeded at either input could cause the device to malfunction. Because of the extremely high input impedance
and resulting low bias current requirements, the TLE206x, TLE206xA, and TLE206xB are well suited for
low-level signal processing. However, leakage currents on printed-circuit boards and sockets can easily exceed
bias current requirements and cause degradation in system performance. It is good practice to include guard
rings around inputs (see Figure 44). These guards should be driven from a low-impedance source at the same
voltage level as the common-mode input.
VI
R2
R1
VI
R4
+
VO
R3
VI
+
VO
+
R3
R4
+ R2
R1
Where
Figure 44. Use of Guard Rings
TLE2061 input offset voltage nulling
The TLE2061 series offers external null pins that can be used to further reduce the input offset voltage. The
circuit of Figure 45 can be connected as shown if the feature is desired. When external nulling is not needed,
the null pins may be left unconnected.
+
VCC
N2
N1
100 k
5 k
IN
IN +
OUT
Figure 45. Input Offset Voltage Nulling
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