Virtual Ground. TLE2426 Datasheet

TLE2426 Ground. Datasheet pdf. Equivalent

Part TLE2426
Description Precision Virtual Ground
Feature ąą TLE2426, TLE2426Y THE RAIL SPLITTER" PRECISION VIRTUAL GROUND SLOS098D − AUGUST 1991 − REVISED .
Manufacture etcTI
Datasheet
Download TLE2426 Datasheet



TLE2426
ąą
TLE2426, TLE2426Y
THE RAIL SPLITTER"
PRECISION VIRTUAL GROUND
SLOS098D − AUGUST 1991 − REVISED MAY 1998
D 1/2 VI Virtual Ground for Analog Systems
D Self-Contained 3-terminal TO-226AA
Package
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
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.”
D Excellent Output Regulation
− −45 µV Typ at IO = 0 to −10 mA
− +15 µV Typ at IO = 0 to + 10 mA
D Low-Impedance Output . . . 0.0075 Typ
D Noise Reduction Pin (D, JG, and P
Packages Only)
INPUT/OUTPUT TRANSFER CHARACTERISTICS
10
VI
8
VI
VO
VO
+
VI
2
6
4
VO
The unique combination of a high-performance,
micropower operational amplifier and a precision-
2
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 low-
impedance output with 20 mA of sink and source
capability while drawing less than 280 µA
0
0
0.25
0.5
0.75
1
t − Time − s
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. The performance and precision of the TLE2426 is available in an easy-to-use, space saving,
3-terminal LP package. For increased performance, the optional 8-pin packages provide 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% with 3.6% 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.
TA
0°C to 70°C
AVAILABLE OPTIONS
PACKAGED DEVICES
SMALL
OUTLINE
(D)
CERAMIC
DIP
(JG)
PLASTIC
(LP)
TLE2426CD
TLE2426CLP
PLASTIC
DIP
(P)
TLE2426CP
CHIP
FORM
(Y)
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 1998, Texas Instruments Incorporated
1



TLE2426
TLE2426, TLE2426Y
ą
THE RAIL SPLITTER"
PRECISION VIRTUAL GROUND
SLOS098D − AUGUST 1991 − REVISED MAY 1998
−40°C to 85°C TLE2426ID
TLE2426ILP
TLE2426IP TLE2426Y
−55°C to 125°C TLE2426MD TLE2426MJG TLE2426MLP TLE2426MP
The D and LP packages are available taped and reeled in the commercial temperature range only. Add R suffix
to the device type (e. g., TLC2426CDR). Chips are tested at 25°C.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265





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