廬
ISO
164
ISO
ISO164
ISO174
174
FPO
Precision, Isolated
PROGRAMMABLE GAIN AMPLIFIER
FEATURES
q
RATED
1500Vrms Continuous
2500Vrms for One Minute
100% TESTED FOR PARTIAL DISCHARGE
q
PROGRAMMABLE GAINS OF
1, 10, 100
q
HIGH IMR: 115dB at 50Hz
q
LOW NONLINEARITY:
鹵
0.01%
q
LOW INPUT BIAS CURRENT:
鹵
5nA max
q
INPUTS PROTECTED TO
鹵
40V
q
BIPOLAR OPERATION: V
O
=
鹵
10V
q
SYNCHRONIZATION CAPABILITY
q
24-PIN PLASTIC DIP: 0.6" Wide
DESCRIPTION
ISO164 and ISO174 are PGA input isolation amplifi-
ers incorporating a novel duty cycle modulation-de-
modulation technique which provides excellent accu-
racy. Internal input protection can withstand up to
鹵40V
differential inputs without damage. The signal is
transmitted digitally across a differential capacitive
barrier. With digital modulation the barrier character-
istics do not affect signal integrity. This results in
excellent reliability and good high frequency transient
immunity across the barrier. Both the amplifier and
barrier capacitors are housed in a plastic DIP. ISO164
and ISO174 differ in frequency response and linearity.
These amplifiers are easy to use. No external compo-
nents are required. A power supply range of
鹵4.5V
to
鹵18V
makes these amplifiers ideal for a wide range of
applications.
APPLICATIONS
q
INDUSTRIAL PROCESS CONTROL
Transducer Isolator, Thermocouple
Isolator, RTD Isolator, Pressure Bridge
Isolator, Flow Meter Isolator
q
POWER MONITORING
q
MEDICAL INSTRUMENTATION
q
ANALYTICAL MEASUREMENTS
q
BIOMEDICAL MEASUREMENTS
q
DATA ACQUISITION
q
TEST EQUIPMENT
q
POWER MONITORING
q
GROUND LOOP ELIMINATION
3
24
V
IN鈥?/div>
A1
Shield 2
14
21
Ext Osc
1
V
S1+
15
V
S2+
V
OUT
23
4
22
A0
Com 2
V
IN+
DGND
GND 1
20
V
S1鈥?/div>
2
5
Com1/
Shield 1
GND 2
V
S2鈥?/div>
13
11
10
12
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400
Tel: (520) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP 鈥?/div>
漏
鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd. 鈥?Tucson, AZ 85706
Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
PDS-1307B
Printed in U.S.A. February, 1996
1996 Burr-Brown Corporation
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