Virtual Ground. TLE2426-Q1 Datasheet

TLE2426-Q1 Ground. Datasheet pdf. Equivalent

Part TLE2426-Q1
Description Precision Virtual Ground
Feature ąą TLE2426ĆQ1 THE RAIL SPLITTER" PRECISION VIRTUAL GROUND SGLS252A − AUGUST 2004 − REVISED JUNE 20.
Manufacture etcTI
Datasheet
Download TLE2426-Q1 Datasheet



TLE2426-Q1
ąą
TLE2426ĆQ1
THE RAIL SPLITTER"
PRECISION VIRTUAL GROUND
SGLS252A − AUGUST 2004 − REVISED JUNE 2008
D Qualified for Automotive Applications
D 1/2 VI Virtual Ground for Analog Systems
D Micropower Operation . . . 170 µA Typ,
VI = 5 V
D Wide VI Range . . . 4 V to 40 V
D High Output-Current Capability
− Source . . . 20 mA Typ
− Sink . . . 20 mA Typ
D Excellent Output Regulation
− −102 µV Typ at IO = 0 to −10 mA
− +49 µV Typ at IO = 0 to + 10 mA
D Low-Impedance Output . . . 0.0075 Typ
D Noise Reduction Pin
D PACKAGE
(TOP VIEW)
OUT 1
COMMON 2
IN 3
NC 4
8 NOISE REDUCTION
7 NC
6 NC
5 NC
NC − No internal connection
INPUT/OUTPUT TRANSFER CHARACTERISTICS
10
VI
8
VI
VO
VO
+
VI
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.
6
4
VO
2
The unique combination of a high-performance,
micropower operational amplifier and a precision-
trimmed divider on a single silicon chip results in
a precise VO/VI ratio of 0.5 while sinking and
sourcing current. The TLE2426 provides a
0
0
0.25
0.5
0.75
1
t − Time − s
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 (CNR), peak-to-peak noise is reduced
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{
TA
PACKAGE}
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2008 Texas Instruments Incorporated
1



TLE2426-Q1
TLE2426ĆQ1
ą
THE RAIL SPLITTER"
PRECISION VIRTUAL GROUND
SGLS252A − AUGUST 2004 − REVISED JUNE 2008
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Continuous input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Continuous filter trap voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 80 mA
Duration of short-circuit current at (or below) 25°C (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA: Q suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 125°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D package . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation
rating is not exceeded.
PACKAGE
D
TA 25°C
POWER RATING
1102 mV
DISSIPATION RATING TABLE
DERATING FACTOR
ABOVE TA = 25°C
10.3 mW/°C
TA = 70°C
POWER RATING
638.5 mW
TA = 85°C
POWER RATING
484 mW
TA = 125°C
POWER RATING
72.1 mW
recommended operating conditions
Input voltage, VI
Operating free-air temperature, TA
MIN MAX UNIT
4
40 V
−40 125 °C
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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