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參數(shù)資料
| 型號(hào)： | TLV2765IPWRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | QUAD OP-AMP, 6800 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 7/42頁 |
| 文件大小： | 1388K |
| 代理商： | TLV2765IPWRG4 |
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TLV2760, TLV2761, TLV2762, TLV2763, TLV2764, TLV2765
FAMILY OF 1.8 V MICROPOWER RAILTORAIL INPUT/OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS326E JUNE 2000 REVISED JANUARY 2005
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
general configurations (continued)
VI
VO
C1
+
RG
RF
R1
f
–3dB +
1
2
pR1C1
V
O
V
I
+
1
)
R
F
R
G
1
) 2pfR1C1
VDD/2
Figure 33. 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
pRC
VDD/2
Figure 34. 2-Pole Low-Pass Sallen-Key Filter
circuit layout considerations
To achieve the levels of high performance of the TLV276x, follow proper printed-circuit board design techniques.
A general set of guidelines is given in the following.
D Ground planes—It is highly recommended that a ground plane be used on the board to provide all
components with a low inductive ground connection. However, in the areas of the amplifier inputs and
output, the ground plane can be removed to minimize the stray capacitance.
D Proper power supply decoupling—Use a 6.8-F tantalum capacitor in parallel with a 0.1-F ceramic
capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers
depending on the application, but a 0.1-
F ceramic capacitor should always be used on the supply terminal
of every amplifier. In addition, the 0.1-
F capacitor should be placed as close as possible to the supply
terminal. As this distance increases, the inductance in the connecting trace makes the capacitor less
effective. The designer should strive for distances of less than 0.1 inches between the device power
terminals and the ceramic capacitors.
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| TLV2770AIDR | 功能描述:IC OPAMP GP R-R 5.1MHZ SGL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品變化通告:Discontinuation 18/May/2012 標(biāo)準(zhǔn)包裝:2,000 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.42 V/µs 增益帶寬積:1.5MHz -3db帶寬:- 電流 - 輸入偏壓:15nA 電壓 - 輸入偏移:1000µV 電流 - 電源:116µA 電流 - 輸出 / 通道:100mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5 V，±0.9 V ~ 2.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:851 (CN2011-ZH PDF) 其它名稱:296-20930-2 |
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