08/05/1
997
14:18
9105054187
ANALOG DEVICES
PAGE
fj~
'--""',
for
COMPUTER
.. ~~...
LABS
tomorro
MODEL
FS-125
OPERATIONAL AMPLIFIER
w'.s tee hn olo g y today
OBS
.
WIDEBAND
PERFORMANCE
.
NO EXTERNAL COMPENSATlt
.
GOOD
DRIVE CAPABILITY
The Computer Labs FS-125 Operational Am-
plifier is specifically designed for fast output
settling for step function signals. The design
has been accomplished without sacrificing
those characteristics which are important for
accurate low drift operation.
. FAST SETTLING
Circuits using the FS-125 Operational Am.
plifier can be accurately calibrated with de
signals with assurance the circuits will be with.
in 0.1 % of their de accuracy while operating at
rates up to 12 MHz. This makes the FS-125
an excellent choice for sample-and-hold cir.
cuits, D/A converters, AID converters, pre-
cision comparators, multiplexers, and a host of
other "time domain" applications,
OLE
TE
Either the FS-125 or the Model OA.125 Oper-
ational Amplifier will give wideband perfor-
mance in any application requiring an inverting
operational amplifier. In applications where
settling time is important, the Model FS-125
is the ideal choice.
Applications which require a larger bandwidth
and a larger gain bandwidth product than that
available with the FS-125 shou Id use the
Model OA-125 Operational Amplifier. Ap-
plications of this type might include active
filters, video amplifiers, and other "frequency
domain" applications.
Min.
Typ,
Max.
Units
10
100,000"
30
500,000
2.0
12"
1.5
10.
250
3.5
5.06
25"
2.56
30.
mV
mV
uV/oC
uA
nAf'C
V/us
(Continued on next page)
K ohms
SPECIFICATIONS - Performance at 25°C with rated supply, unless otherwise indicated
INPUT: Single ended (inverting only)
INPUT IMPEDANCE (Freq. = 20 Hz):
tVOL TAGE GAIN (Open loop)
tlNPUT OFFSET VOLTAGE
vs. temperature
tlNPUT OFFSET CURRENT
vs. temperature
tSLEW RATE
tTest conditions shown on page 5
6Specification from 00 to 70°C
o/~.
r'i
"'-'
-
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08/05/1997
14:18
9105054187
ANALOG
DEVICES
PAGE
04
------....
COMPUTER
~LABS
tomoTTow'8
jo,'
technology
today
r~
'"..
I
rOUTPUT
VOLTAGE
1DO-ohm
load
Max.
I
Units
7==i
+2.4"
I
Typ.
-2.2"
200-ohm load
I
I
volts
+3.0"
-2.9"
500-ohm load
I
I
I
I
I
I
I
I
1.0
volts
volts
+4.0"
-3.5"
OBS
0
-
MECHAN ICAL
Length
Width
Height
Weight
Volume
tOUTPUT
IMPEDANCE
m
tPOWER SUPPLYSENSITIVITY
D. V $UmmiM node
6.
V power supply
POWER
SUPPLY REQUIREMENTS
The Model FS.125 will meet performance specifications with ~ 15 \1Olts.;l;;.3%
applied. Performance may be degraded if supply voltages are outside me 3% limits.
Voltages greater than:' 18 volts should never be applied to the unit! If they are,
catastrophic failures may occur. With 0 mA load current, + 15 volt current is
approximately + 60 mA; -15 volt current is approximately -55 mA. With 20 mA
load current, + 15 volt curtent is approximately + 80 mA;
-
15 volt current is
approximately
60 mA.
Power supply voltage disturbances can affect the fast-settling characteristics
of the FS- 125. It is suggested that both power supplies be bypassed with a ceram ic
capacitor of
0.01
microfarad for high-frequency components and appropriate
electrolytic capacito~ for low-frequency components.
OLE
TE
200
uV/V
TEMPERATURE RANGE
Operating
Storage
a
-6Q
+70
+125
°c
°c
inches
inches
inches
ounces
cu. in.
2.02
1.14
0.65
1.5
1.5
~
.65
r-
+VOLTS
BLANK
OUTPUT
-VOLTS
PWR GRD
r--1.l4j
INV
IN
SIG
GRD
fl1=t
0
.Specification
LLj38L
MIN
tTest conditions shown on page 6
from
GRID
SPACING 0.1"
0°
to
3
700 C
-
-
-
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-
-
08/05/1997
14:18
9106054187
ANALOG
DEVICES
PAGE
05
COMPUTER
~LABS
tomorrow's
for
technology
today
"
OBS
Photograph p.,
INPUT
(- Z VOLTS 1'0 + 2 vOLTS
FOR GAl" OF I)
(+zTO-2vOLTS
FOR ALL GAINS!
Input and (inverted) Output superimposed to illustrate re-
sponS!! of FS-125 to positive step function- left trsee is
Input. Oscilloscope used was Tektronix Type 464; settings
1 V/em and 60 nsee/em. Rff.and Afb 1000 ohms; AL 120
ohms.
OLE
TE
Photograph
P-2
Input and (inverted) output superimposed
to lIIustr3te re-
spon:;a
of FS-125
to negative step function. Left trsee 1$
input. Oscilloscope used was Tektronix Type 454; slIttlngs
1 V/cm and 50 fiG/em. Rff and Rfb 1000 ohms; AL 120
ohms.
OUTPUT
j
DELAY
TIME
\
~.9%
\ALVE
OF FINAL
L
4
TOTAL ACQUISITION
TIM!:: TO WITHIN
0.1% OF FINAL VALUE
(APPROXI TE SCALE
FeR
GA,II OF I)
---J
()
FIGURE
I.
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08/05/1997
14:18
9105054187
ANALOG
DEVICES
PAGE
05
~
COMPUTER
~LABS
foT tomoTrow'8
t8ch.1tology
today
0
",."
II(
0.1%
VARIABLE
II(
0.1%
De
SOURCE
It(
O.I"{"
"OUI
OPEN
II\FUT
II(
0,10",
FL.WIC£
IoIODEL.
a61A
OBS
OPOl'l
lo~ Goln=
Wil~ po"",' applied TOF5-125 0"" off...,
,011"9" seleClo<J (>'1
Fl,*". '00') 1"4'11
010.2'1
OM 0 lo-:!;'/, Record cnQro;:I9
in $\jIM\I!'IJ~do Vo1loo;l8.
!'"LUKE
Io()DEL
881A
0. '/(QUI)
oC>o"(""nYT\in~
('()oo)
1010:
S"4
f/4W
~FSET
VOLTAGE
TEST
DC OPEN LOOP VOLTAGE
GAIN
TEST
I~T
0
OPEN
INPUT
IIC
0.,1"4
App
FS-125,""""",
Mcdef 8IA.
6
Of1WC_.~
VI willi F'k<1Ie
OPEN
a..rm.rr
OLE
TE
"
rx-'
II(
0.1"1.
,0
+2V
0'.1- -
-2V
SL
INPl/T
--\%
\~
OUTruT
-
r
:~v
-2'1
-
II<
EKTR~
I.a::El..
454
SCOPE
SiI!oI
Rot..
\.CIIt(IO% 1090%)
TIrMUO"1. ToBO%)
INPUT OFFSET ~RENT
TEST
SLEW RATE TEST
(Qcin=I)
R(b
OPEN
INPUT
Rtf
IreM II Gombll
rom.' P.P for
SINIII
SI~1 TK~: ><liedas
'-lIOn of ~i" for la9o
~i;rd 'hn.
H-P
3200 B
Vlff'
ose.
H-P
0uI1'UI"7'" 0$f\n;tkrI of
gcinfor !'irG1 ~I
~";
...,.q.,. """~
4 V Ii'- P
far l..tI;ieS;.,.." Tefl;,
f-I-p
KDEL 411A
Fl.f
I<!llliVOLTloIETEFI.
..
SMALL
SK3NAL/LARGE
SiGIIIAL
Dnl
-3c!b ln.Fr"'1.
To'Oi;> iO'C
Rtf
I
2
4
1000
!iC0
2O
250
250
R L cM'IIJIId fi:r
0 loo-am
GAIN
I
2
4
1000
:100
2!50
-0.. ep.n
ro
Iocd.
Rfb
k)00
1000
1000
MAX.
)IV R
I
sc
I
Scope R
NoIse
PIa. 1b PtcIk.
I
I
MlLLI'A.TIoETER
K>DEL.
411A
RF
175
20
100
50
'AMSNa.
0
0
16
1000
I
1\
250
250
2fiO
4000
2&>,000
IUT
2000
g.
0.25
)
a
16
1000
1000
1000
2000
4000
3OMH,/2SMH.
3O1ot1z128MIoI,
2GMM,IZZII\H,
IO...HI/IOMloIz
4MHz/4HI
NOISE TESTS
SMALl.. SIGNAL / LARGE SIGNAL BANDWIDTHTESTS
5
-
Embedded System
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