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PDF ISO122U Data sheet ( Hoja de datos )
| Número de pieza | ISO122U | |
| Descripción | Precision Lowest Cost ISOLATION AMPLIFIER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ISO122U (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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ISO122
SBOS160
Precision Lowest Cost
ISOLATION AMPLIFIER
FEATURES
q 100% TESTED FOR HIGH-VOLTAGE
BREAKDOWN
q RATED 1500Vrms
q HIGH IMR: 140dB at 60Hz
q
BIPOLAR
OPERATION:
V=
O
±10V
q 16-PIN PLASTIC DIP AND 28-LEAD SOIC
q EASE OF USE: Fixed Unity Gain
Configuration
q 0.020% max NONLINEARITY
q ±4.5V to ±18V SUPPLY RANGE
APPLICATIONS
q INDUSTRIAL PROCESS CONTROL:
Transducer Isolator, Isolator for Thermo-
couples, RTDs, Pressure Bridges, and
Flow Meters, 4mA to 20mA Loop Isolation
q GROUND LOOP ELIMINATION
q MOTOR AND SCR CONTROL
q POWER MONITORING
q PC-BASED DATA ACQUISITION
q TEST EQUIPMENT
DESCRIPTION
The ISO122 is a precision isolation amplifier incor-
porating a novel duty cycle modulation-demodulation
technique. The signal is transmitted digitally across
a 2pF differential capacitive barrier. With digital modu-
lation the barrier characteristics do not affect signal
integrity, resulting in excellent reliability and good high
frequency transient immunity across the barrier. Both
barrier capacitors are imbedded in the plastic body of
the package.
The ISO122 is easy to use. No external components
are required for operation. The key specifications are
0.020% max nonlinearity, 50kHz signal bandwidth,
and 200µV/°C VOS drift. A power supply range of
±4.5V to ±18V and quiescent currents of ±5.0mA on
VS1 and ±5.5mA on VS2 make these amplifiers ideal
for a wide range of applications.
The ISO122 is available in 16-pin plastic DIP and 28-
lead plastic surface mount packages.
V
IN
V
OUT
–VS1
Gnd
+V
S1
–VS2
Gnd
+V
S2
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1989 Burr-Brown Corporation
PDS-857F
Printed in U.S.A. November, 1993
1 page  
TYPICAL PERFORMANCE CURVES
TA = +25°C, VS = ±15V unless otherwise noted.
PSRR vs FREQUENCY
60
54
40
+V , +V
S1 S2
–VS1 , –VS2
20
0
1 10 100 1k 10k 100k 1M
Frequency (Hz)
100mA
10mA
1mA
100µA
10µA
1µA
0.1µA
1
ISOLATION LEAKAGE CURRENT
vs FREQUENCY
1500Vrms
240Vrms
10 100
1k 10k 100k 1M
Frequency (Hz)
SIGNAL RESPONSE TO
INPUTS GREATER THAN 250kHz
VOUT/VIN
0
100kHz
Freq
Out
250
–10 200
–20 150
–30 100
–40 50
0
500kHz
1MHz
1.5MHz
Input Frequency
(NOTE: Shaded area shows aliasing frequencies that cannot
be removed by a low-pass filter at the output.)
®
5 ISO122
5 Page 
Channel 2
(Same as Channel 1.)
Channel 1
ISO122P
10
VIN 15
16
7
8
9
2
1
0.3µF
0.3µF
VOUT
+V
10µF
20µH
8
0.3µF
0.3µF
41
PWS740-3
41
PWS740-3
36
32 1
36
32 1
PWS740-2
PWS740-2
4 5 6 0.3µF 4 5 6
PWS740-1
5
3
6
4
Channel 3
(Same as Channel 1.)
Channel 4
(Same as Channel 1.)
FIGURE 9. Three-Port, Low-Cost, Four-Channel Isolated, Data Acquisition System.
®
11 ISO122
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet ISO122U.PDF ] | |
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