t4296
UUTRA
tOW NOISE
TRUE
INSTRUMENTATION
MEDICAT
ISOIATIONAJT{PIIFIER
FEATURES
. UL Component
Recognized
r Ultra Low Noise
o Failureof any internalcomponentresultsin ( l0 sA
bias current
o Excellent
CMRR: 170dB; 160dB with 5 kQ source
imbalance
. ExternalSyncCapability
The Model 1,4296
IsolationAmplifier features
very
high input/output isolationand very low noise.It can
operateat common mode input voltages to 5000VDC
up
c o n t i n u o u sC M R R i s 1 7 0d B w i t h b a l a n c e d o u r c em p e -
;
s
i
dance,and 160dB with 5 kQ sourceimbalance.
Input volt-
age noiseis held to 0.3 prV,l0 Hz-l kHz rms, and current
n o i s et o 4 p A , 0 . 5 H z - l k H z r m s . I n p u r b i a sc u r r e n ti s
only 200 pA, and on the failure of any componentis lim-
ited to l0 prA.An independent l2 VDC, l0 mA supply
+
in the input sectionwith the samevoltageisolationas
the amplifier input, is usedto power optional external
circuitry.
BLOCK DIAGRAM
1A296
CHARACTERISTICS
(Typicaf @ 25 'C, Vr = + 15 VDC unlessotherwisenoted.)
GAIN (NON-INVERTING)
ACCURACY
vs. Temperature
Non-Linearity
Differential lnput Impedance
Common-Mode Input lmpedance
INPUT VOLTAGE
M a x . S a f e D i f f e r e n t i a lI n p u t
Pulse, l0 ms Duration
Max. Safe Common Mode Inpur (DC conr.)
tov/v
+ 2Vo
l:0.0l5o/o/'C
t0.l9o
3 x l0'Qll2.2nF
l 0 " a l ll 0 p F
+0.5 V min.
t30 V rms
+ 500 V oeak
+ 5000 VDC
+ 200 pA
+5 pAl"C
lOtA max.
INPUT BIAS CURRENT
vs.Temperature
SAFETY
CURRENT
LIMITS
INPUT NOISE (5 K unbalance)
Voltage .05 to 100Hz, pp
Voltage l0 Hz to I kHz, rms
Current.05Hz to I kHz, rms
COMMON MODE REIECTION
l n p u t t o O u t p u t , C M V = I 1 5V A C , 6 0 H z
BalancedSource lmpedance
5kQ Source Imbalance
Input to Reference,CMV = lOV p-p, 60 Hz
5 kQ Sourcelmbalance
OUTPUT
Range (50kQ Load)
Output Impedance
Max. CMV, Outputs to power common
Offset voltage referred to input
v s . T e m p e r a t u r e0 " t o 7 0 " C )
(
vs.Supply
ENCY RESPONSE*
I S i g n a l ,- 3 C B ,
FullPower,6Vpp
Overload Recovery
ISOLATED POWER OUTPUT
Voltage, + l0 mA load
Accuracy
Current
POWER SUPPLY, SINGLE POLARITY
Voltage Rated Performance
Current, Quiescent
TEMPERATURE RANGE
Rated Performance
Storage
l.5pV
0.3pV
4pA
1 7 0d B
1 6 0d b
1 2 0d B
+5V
lka
+ 30 V peak
+5 mV
t l00pV/'C
+20 pY/Vo
I kHz
500 Hz
20 msec
+ l2 VDC
+ l09o
+l0mA
+ 1 4 . 5t o + 1 6 V D C
+,10 mA
0"c to 70"c
- 25.C to + g5.C
*For l0kHz bandwidthspecifyP/N IA297 when consulting
facrory
f-
t!(q2t
l
t_
l
INTRONICS [ INTRONICS POWER, INC. ]
