廬
ISO
175
ISO175
Precision, Isolated
INSTRUMENTATION AMPLIFIER
FEATURES
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RATED
1500Vrms Continuous
2500Vrms for One Minute
100% TESTED FOR PARTIAL DISCHARGE
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HIGH IMR: 115dB at 50Hz
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LOW NONLINEARITY:
鹵
0.01%
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LOW INPUT BIAS CURRENT: 10nA max
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LOW INPUT OFFSET VOLTAGE: 101mV max
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INPUTS PROTECTED TO
鹵
40V
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BIPOLAR OPERATION: V
O
=
鹵
10V
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SYNCHRONIZATION CAPABILITY
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24-PIN PLASTIC DIP: 0.3" Wide
DESCRIPTION
ISO175 is a precision isolated instrumentation ampli-
fier incorporating a novel duty cycle modulation-
demodulation technique and excellent accuracy. A
single external resistor sets the gain. Internal input
protection can withstand up to
鹵40V
without damage.
The signal is transmitted digitally across a differential
capacitive barrier. With digital modulation the barrier
characteristics do not affect signal integrity. This re-
sults in excellent reliability and good high frequency
transient immunity across the barrier. Both the ampli-
fier and barrier capacitors are housed in a plastic DIP.
ISO175 is easy to use. A power supply range of
鹵4.5V
to
鹵18V
makes this amplifier ideal for a wide range of
applications.
APPLICATIONS
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INDUSTRIAL PROCESS CONTROL
Transducer Isolator, Thermocouple
Isolator, RTD Isolator, Pressure Bridge
Isolator, Flow Meter Isolator
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POWER MONITORING
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MEDICAL INSTRUMENTATION
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ANALYTICAL MEASUREMENTS
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BIOMEDICAL MEASUREMENTS
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DATA ACQUISITION
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TEST EQUIPMENT
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POWER MONITORING
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GROUND LOOP ELIMINATION
5
Shield 1
1
22
V
IN鈥?/div>
R
G
Shield 2
14
21
Ext Osc
4
+V
S1
15
+V
S2
V
OUT
2
24
R
G
V
IN+
Com1
23
GND1
20
鈥揤
S1
3
鈥揤
S2
13
Com2
11
10
GND2
12
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏
1996 Burr-Brown Corporation
PDS-1293A
Printed in U.S.A. May, 1996
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