廬
ISO212P
FPO
Low Cost, Two-Port Isolated, 1500Vrms
ISOLATION AMPLIFIER
FEATURES
q
12-BIT ACCURACY
q
2.5mA (typ) QUIESCENT CURRENT
q
LOW PROFILE (LESS THAN 0.5" HIGH)
q
SMALL FOOTPRINT
q
EXTERNAL POWER CAPABILITY
(
鹵
8V at 5mA)
q
鈥淢ASTER/SLAVES鈥?SYNCHRONIZATION
CAPABILITY
q
INPUT OFFSET ADJUSTMENT
q
LOW POWER (53mW)
q
SINGLE 10V TO 15V SUPPLY OPERATION
APPLICATIONS
q
INDUSTRIAL PROCESS CONTROL:
Transducer Channel Isolator for
Thermocouples, RTDs, Pressure
Bridges, Flow Meters
q
4mA TO 20mA LOOP ISOLATION
q
MOTOR AND SCR CONTROL
q
GROUND LOOP ELIMINATION
q
ANALYTICAL MEASUREMENTS
q
POWER PLANT MONITORING
q
DATA ACQUISITION/TEST EQUIPMENT
ISOLATION
q
MULTIPLEXED SYSTEMS WITH CHANNEL
TO CHANNEL ISOLATION
Isolation Barrier
Offset
Adjust
Offset
Adjust
鈥揑/P
8
7
3
38
O/P High
DESCRIPTION
The ISO212P signal isolation amplifier is a member of
a series of low-cost isolation products from Burr-
Brown. The low-profile SIL plastic package allows
PCB spacings of 0.5" to be achieved, and the small
footprint results in efficient use of board space.
To provide isolation, the design uses high-efficiency,
miniature toroidal transformers in both the signal and
power paths. An uncommitted input amplifier and an
isolated external bipolar supply ensure the majority of
input interfacing or conditioning needs can be met. The
ISO212P accepts an input voltage range of
鹵5V
for
single 15V supply operation or
鹵3.0V
for single 10V
supply operation.
+I/P
1
37
O/P Low
f
B
+V
SS 1
Out
Com 1
鈥揤
SS 1
Out
4
6
2
5
34
35
DC/DC
Converter
31
32
+V
CC
Com 2
Clock Out
Clock In
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
1988 Burr-Brown Corporation
PDS-881G
Printed in U.S.A. December, 1995