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TLE2426-Q1 PDF预览

TLE2426-Q1

更新时间： 2024-11-23 12:22:35
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
15页 235K
描述
THE "RAIL SPLITTER" PRECISION VIRTUAL GROUND

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TLE2426-Q1 数据手册

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SGLS252A − AUGUST 2004 − REVISED JUNE 2008  
D PACKAGE  
(TOP VIEW)  
D
D
D
Qualified for Automotive Applications  
1/2 V Virtual Ground for Analog Systems  
I
Micropower Operation . . . 170 µA Typ,  
OUT  
COMMON  
IN  
NOISE REDUCTION  
1
2
3
4
8
7
6
5
V = 5 V  
NC  
NC  
NC  
I
D
Wide V Range . . . 4 V to 40 V  
I
NC  
D
High Output-Current Capability  
− Source . . . 20 mA Typ  
− Sink . . . 20 mA Typ  
NC − No internal connection  
D
Excellent Output Regulation  
INPUT/OUTPUT TRANSFER CHARACTERISTICS  
− −102 µV Typ at I = 0 to −10 mA  
O
10  
− +49 µV Typ at I = 0 to +10 mA  
O
V
I
V
I
V
O
D
D
Low-Impedance Output . . . 0.0075 Ω Typ  
Noise Reduction Pin  
V
I
V
+
8
6
4
O
2
description  
In signal-conditioning applications utilizing a  
single power source, a reference voltage equal to  
one-half the supply voltage is required for  
termination of all analog signal grounds. Texas  
Instruments presents a precision virtual ground  
whose output voltage is always equal to one-half  
the input voltage, the TLE2426 rail splitter.  
V
O
2
0
The unique combination of a high-performance,  
micropower operational amplifier and a precision-  
trimmed divider on a single silicon chip results in  
0
0.25  
0.5  
0.75  
1
a precise V /V ratio of 0.5 while sinking and  
O
I
t − Time − s  
sourcing current. The TLE2426 provides a  
low-impedance output with 20 mA of sink and  
source capability while drawing less than 280 µA of supply current over the full input range of 4 V to 40 V. A  
designer need not pay the price in terms of board space for a conventional signal ground consisting of resistors,  
capacitors, operational amplifiers, and voltage references. For increased performance, the 8-pin package  
provides a noise-reduction pin. With the addition of an external capacitor (C ), peak-to-peak noise is reduced  
NR  
while line ripple rejection is improved.  
Initial output tolerance for a single 5-V or 12-V system is better than 1% over the full 40-V input range. Ripple  
rejection exceeds 12 bits of accuracy. Whether the application is for a data acquisition front end, analog signal  
termination, or simply a precision voltage reference, the TLE2426 eliminates a major source of system error.  
{
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
}
T
A
PACKAGE  
−40°C to 125°C  
SOIC (D)  
Tape and Reel TLE2426QDRQ1  
2426Q1  
†
‡
For the most current package and ordering information, see the Package Option Addendum at the  
end of this document, or see the TI web site at http://www.ti.com.  
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2008 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...15

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