ISO164 Datasheet, PDF (1/8 Pages) Burr-Brown (TI) – Precision, Isolated PROGRAMMABLE GAIN AMPLIFIER

®
ISO164
ISO174
FPO
ISO164
ISO174
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: ±0.01%
q LOW INPUT BIAS CURRENT: ±5nA max
q INPUTS PROTECTED TO ±40V
q BIPOLAR OPERATION: V_O = ±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
±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 ±4.5V to
±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
3
V_IN–
21
Ext Osc
q ANALYTICAL MEASUREMENTS
24 A1
q BIOMEDICAL MEASUREMENTS
q DATA ACQUISITION
q TEST EQUIPMENT
23 A0
q POWER MONITORING
4
V_IN+
q GROUND LOOP ELIMINATION
22
DGND
1
V_S1+
15
V_S2+
GND 1
20
V_S1–
2
Com1/
Shield 1
5
V_S2–
13
Shield 2
14
V_OUT
11
Com 2
10
GND 2
12
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Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1996 Burr-Brown Corporation}
PDS-1307B
Printed in U.S.A. February, 1996