ISO130 Datasheet, PDF (1/11 Pages) Burr-Brown (TI) – High IMR, Low Cost ISOLATION AMPLIFIER

®
49%
FPO
ISO130
High IMR, Low Cost
ISOLATION AMPLIFIER
FEATURES
q HIGH ISOLATION-MODE REJECTION:
10kV/µs (min)
q LARGE SIGNAL BANDWIDTH: 85kHz (typ)
q DIFFERENTIAL INPUT/DIFFERENTIAL
OUTPUT
q VOLTAGE OFFSET DRIFT vs
TEMPERATURE: 4.6µV/°C (typ)
q OFFSET VOLTAGE 1.8mV (max)
q INPUT REFERRED NOISE: 300µVrms (typ)
q NONLINEARITY: 0.25% (max)
q SINGLE SUPPLY OPERATION
q SIGMA-DELTA A/D CONVERTER
TECHNOLOGY
q WORLDWIDE SAFETY APPROVAL:
UL1577 (File No. E162573), VDE0884
(File No. 85511), CSA22.2 (File No. 88324)
q AVAILABLE IN 8-PIN PLASTIC DIP and
8-PIN GULL-WING PLASTIC SURFACE
MOUNT
1
V_S1
8
V_S2
V_IN+ ²
3
V_IN–
7 _VOUT+
6
V_OUT–
4
GND₁
IMR SHIELD
5
GND₂
APPLICATIONS
q MOTOR AND SCR CONTROL
q MOTOR PHASE CURRENT SENSING
q INDUSTRIAL PROCESS CONTROL:
Transducer Isolator, Isolator for
Thermocouples, RTDs
q GENERAL PURPOSE ANALOG SIGNAL
ISOLATION
q POWER MONITORING
q GROUND LOOP ELIMINATION
DESCRIPTION
The ISO130 is a high isolation-mode rejection, isola-
tion amplifier suited for motor control applications. Its
versatile design provides the precision and stability
needed to accurately monitor motor currents in high-
noise motor control environments. The ISO130 can
also be used for general analog signal isolation appli-
cations requiring stability and linearity under severe
noise conditions.
The signal is transmitted digitally across the isolation
barrier optically, using a high-speed AlGaAs LED.
The remainder of the ISO130 is fabricated on 1µm
CMOS IC process. A sigma-delta analog-to-digital
converter, chopper stabilized amplifiers and differen-
tial input and output topologies make the isolation
amplifier suitable for a variety of applications.
The ISO130 is easy to use. No external components
are required for operation. The key specifications are
10kV/µs isolation-mode rejection, 85kHz large signal
bandwidth, and 4.6µV/°C V_OS drift. A single power
supply ranging from +4.5V to +5.5V makes this am-
plifier ideal for low power isolation applications.
The ISO130 is available in 8-pin plastic DIP and 8-pin
plastic gull-wing surface mount packages.
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1994 Burr-Brown Corporation
PDS-1234B
Printed in U.S.A. June, 1995