ISO253 Datasheet, PDF (1/9 Pages) Burr-Brown (TI) – Precision, Powered, Three-Port Isolated BUFFER AMPLIFIER

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ISO253
ISO253
Precision, Powered, Three-Port Isolated
BUFFER AMPLIFIER
FEATURES
q RATED
1500Vrms Continuous
2500Vrms for One Minute
q 100% TESTED FOR PARTIAL DISCHARGE
q LOW NONLINEARITY: ±0.01% typ
q INPUT PROTECTED TO ±100V
q BIPOLAR OPERATION: V_O = ±10V
q SYNCHRONIZATION CAPABILITY
q 28-PIN PLASTIC DIP: 0.6" Wide
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 DATA ACQUISITION
q TEST EQUIPMENT
q GROUND LOOP ELIMINATION
DESCRIPTION
ISO253 is a precision three-port isolated buffer ampli-
fier incorporating a novel duty cycle modulation-
demodulation technique and has excellent accuracy.
The input is protected to withstand ±100V without
damage. The signal is transmitted digitally across a
differential capacitive barrier. With digital modulation
the barrier characteristics do not affect signal integrity.
This results in excellent reliability and good high
frequency transient immunity across the barrier. The
DC/DC converter, amplifier and barrier capacitors are
housed in a plastic DIP.
This amplifier is easy to use as no external compo-
nents are required. A power supply range of 11V to
18V makes this amplifier ideal for a wide range of
applications.
1 ^+VIN
BUF
ISO253
V_{OUT 14}
Com1
26
28 ^+VS1
27 ^–VS1
GND1
25
Com2
13
+V_{S2 12}
–V_{S2 11}
GND2
10
GND3 SYNC +V_S3
17 16 15
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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-1310B
Printed in U.S.A. April, 1996