®
49%
FPO
ISO130
High IMR, Low Cost
ISOLATION AMPLIFIER
FEATURES
q
HIGH ISOLATION-MODE REJECTION:
10kV/
µ
s (min)
q
LARGE SIGNAL BANDWIDTH: 85kHz (typ)
q
DIFFERENTIAL INPUT/DIFFERENTIAL
OUTPUT
q
VOLTAGE OFFSET DRIFT vs
TEMPERATURE: 4.6
µ
V/
°
C (typ)
q
OFFSET VOLTAGE 1.8mV (max)
q
INPUT REFERRED NOISE: 300
µ
Vrms (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
8
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.
• Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
V
S1
V
S2
V
IN+
2
7
V
OUT+
V
IN–
3
6
V
OUT–
GND
1
4
5
GND
2
IMR SHIELD
International Airport Industrial Park • Mailing Address: PO Box 11400
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP •
© 1994 Burr-Brown Corporation
PDS-1234B
Printed in U.S.A. June, 1995
BURR-BROWN [ BURR-BROWN CORPORATION ]
