參數(shù)資料
型號: TLV2780CDBVTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 運算放大器
英文描述: OP-AMP, 4500 uV OFFSET-MAX, 8 MHz BAND WIDTH, PDSO6
封裝: GREEN, PLASTIC, SOT-23, 6 PIN
文件頁數(shù): 5/44頁
文件大?。?/td> 1563K
代理商: TLV2780CDBVTG4
TLV2780, TLV2781, TLV2782, TLV2783, TLV2784, TLV2785, TLV278xA
FAMILY OF 1.8 V HIGHSPEED RAILTORAIL INPUT/OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS245E MARCH 2000 REVISED JANUARY 2005
13
WWW.TI.COM
PARAMETER MEASUREMENT INFORMATION
_
+
RNULL
RL
CL
Figure 29
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 (RNULL) with the output of the amplifier, as
shown in Figure 30.
CL
RF
Input
Output
RG
RNULL
+
RL
CL
RF
Input
Output
RG
RNULL
+
RL
Snubber
C
(a)
(b)
Figure 30. Driving a Capacitive Load
offset voltage
The output offset voltage, (VOO) is the sum of the input offset voltage (VIO) and both input bias currents (IIB) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage:
V
OO +
V
IO
1
)
R
F
R
G
" I
IB
)
R
S
1
)
R
F
R
G
" I
IB–
R
F
+
VI
+
RG
RS
RF
IIB
VO
IIB+
Figure 31. Output Offset Voltage Model
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TLV2780IDBVT 功能描述:運算放大器 - 運放 Single 1.8V RRIO 8MHz RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比(最小值):63 dB 輸入補償電壓:1 mV 輸入偏流(最大值):10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel