IA175 Datasheet, PDF (5/6 Pages) Intronics Power, Inc. – ULTRA-LINEAR ISOLATION AMPLIFIER WITH EXTERNAL SYNC CAPABILITY

tA294
MEDICATISOIATION AMPTIFIER
tOW NOISE,WITHACTTVEINPUT
REFERT,NACNED SHIETDDRIVES
FEATURES
. _{UL componenlrecognized}
r _{Trueinslrumenlationfront-end}
r _{Aclive input reference}
r _{Activeshielddrives}
o _{Low noise:E sv P-P..05 to lfi) Hz.}
o _{High CMRR: 126dB input to output, 120dB input to}
guard
o _{IsolaledPower:} + _{l5V @ 15 mA}
o _{Smallsize:,2"x 3} ^"
o _{ExternalSynccapabilityfor multi-channeml onitors}
The Model IA294 Isolation Amplifier featuressmall
size,low noise,high commonmoderejection,activeguard
and shielddrives.CMRR is 126dB input to output with
balancedsourceimpedanceC. MRR from input to active
input referenceis 120dB. This IsolationAmplifier con-
tainsmostof the front-endcircuitrythat is found in
monitorand diagnosticECG's.The IA294 hasa true
instrumentationfront-endfor high CMRR, activeright leg
drive, synccapabilityfor multichanneul se,isolatedpower
( + l5 V _@ l5 mA) and separateactivedrivesfor either,
individualshieldedinputsor a commonoutershield.This
modelalsofeatures6500V input to output protectionand
6500V differentialinput protectionfor defibrillators.
Input to output leakagecurrentis lessthan l0 _FA.
BLOCK DIAGRAM ^(IA294I
CHARACTERISTICS
(Typical _@ 25 ^'C, V. = + _{l5 VDC unlessotherwisenoted.)}
GAIN ^{(NON.INVERTING)}
t0v/v
ACCURACY
vs. Temperature
+
+
2Vo
.019
0
/"
C
Non-Linearity
+ 0 . 19 0
Differential lnput lmpedance
3 x l03Qll3pF
Common-Mode Input Impedance
5 x l0''all20pF
INPUTVOLTAGE
Max. Safe Differential Input
P u l s e ,l 0 m s D u r a t i o n
Max. SafeCommon Mode Input (DC cont.)
+lVmin.
+ 240V rms
+6500V peak
+ 5000VDC
INPUT BIAS CURRENT
vs. Temperature
+2nA
+ .02 nA/ ^"C
SAFETY CURRENT LIMITS
l0gA max
INPUT NOISE (5 K UNBALANCE)
Voltage.05 to 100Hz, pp
V o l t a g el 0 H z t o I k H z , r m s
Current.05Hz to I kHz, rms
8rv
5lv
l0 pA
COMMON MODE RE.IECTION
I n p u tt o O u t p u t ,C M V : I l 5 V A C , 6 0 H z
BalancedSourceImpedance
5kQSourceImbalance
Two Inputsto lnput Reference
C M V ^: l O V p - p , 6 OH z
5 k Q S o u r c eI m b a l a n c e
1 2 6d B
1 2 0d b
1 2 0d B
OUTPUT
R a n g e( 5 0 k QL o a d )
Output Impedance
M a x . C M V , O u t p u t st o p o w e rc o m m o n
Offset voltagereferredto input
vs. Temperature(0' to 70'C)
vs. Supply Voltage
FREQUENCY RESPONSE
SmallSignal,-3 dB
F u l lP o w e r , 6 V p p
Overload Recovery
+l0v
I K\Z
+ 30 V peak
+5 mV
t l00sV/'C
+20 _tY/Vo
I kHz
500 Hz
20 msec
ISOLATED POWER OUTPUT
Voltage, + l0 mA load
Accuracy
C u r r e n t ,m i n .
t 1 5v D C
x 5Vo
t15mA
NOMINAL WEIGHT
8 ounces
POWER SUPPLY, SINGLE POLARITY
VoltageRated Performance
Current, _Quiescent
r 1 4 . 5t o + 1 6V D C
+40rA
TEMPERATURE RANGE
Rated Performance
Storaee
0"c to 70"c
2 5 ' Ct o + 8 5 ' C
SOCKET
sl35
T-
. 4 20 5 . r 3 )
t^t.
t
. 2 0 15 . o a )
rtt.
T-
(76.711r^x.--l
toTTox vtEw
J Lo.,t..r.tn",o