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What is 3656?

This electronic component, produced by the manufacturer "Burr-Brown Corporation", performs the same function as "Transformer Coupled ISOLATION AMPLIFIER".


3656 Datasheet PDF - Burr-Brown Corporation

Part Number 3656
Description Transformer Coupled ISOLATION AMPLIFIER
Manufacturers Burr-Brown Corporation 
Logo Burr-Brown Corporation Logo 


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® 3656
Transformer Coupled
ISOLATION AMPLIFIER
FEATURES
q INTERNAL ISOLATED POWER
q 8000V ISOLATION TEST VOLTAGE
q 0.5µA MAX LEAKAGE AT 120V, 60Hz
q 3-PORT ISOLATION
q IMR: 125dB REJECTION AT 60Hz
q 1" x 1" x 0.25" CERAMIC PACKAGE
DESCRIPTION
The 3656 was the first amplifier to provide a total
isolation function, both signal and power isolation, in
integrated circuit form. This remarkable advancement
in analog signal processing capability was accom-
plished by use of a patented modulation technique and
miniature hybrid transformer.
Versatility and performance are outstanding features
of the 3656. It is capable of operating with three
APPLICATIONS
q MEDICAL
Patient Monitoring and Diagnostic
Instrumentation
q INDUSTRIAL
Ground Loop Elimination and
Off-ground Signal Measurement
q NUCLEAR
Input/Output/Power Isolation
completely independent grounds (three-port isolation).
In addition, the isolated power generated is available
to power external circuitry at either the input or
output. The uncommitted op amps at the input and the
output allow a wide variety of closed-loop configura-
tions to match the requirements of many different
types of isolation applications.
Input
Demodulator
Pulse
Generator
+
Input
ISO
Power
Modulator
Rectifiers
and
Filters
Output
Demodulator
Rectifiers
and
Filters
Output
ISO
Power
SBOS132
This product is covered by the following United States patents: 4,066,974; 4,103,267; 4,082,908. Other patents pending may also apply upon the
allowance and issuance of patents thereon. The product may also be covered in other countries by one or more international patents corresponding
to the above-identified U.S. patents.
InternationalAirportIndustrialPark • MailingAddress:POBox11400,Tucson,AZ85734 • StreetAddress:6730S.TucsonBlvd.,Tucson,AZ 85706 • Tel:(520)746-1111 • Twx:910-952-1111
Internet:http://www.burr-brown.com/ • FAXLine:(800)548-6133(US/CanadaOnly) • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • ImmediateProductInfo:(800)548-6132
©1987 Burr-Brown Corporation
PDS-1403G
3656Printed in U.S.A. January, 1997
®

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3656 equivalent
TYPICAL PERFORMANCE CURVES (CONT)
All specifications typical at +25°C, unless otherwise specified.
QUIESCENT CURRENT vs TEMPERATURE
2.2
1.8
1.4
1
0.6
–55
–75 –50
–25 0
25 50
Temperature (°C)
75 85 100
ISOLATED OUTPUT VOLTAGE AND CURRENT
vs TEMPERATURE
8 16
6 12
±V at IISO = 0
48
±V at IISO = max
2
0
–55
–75 –50
Voltage
Current
4
0
–25 0
25 50
Temperature (°C)
75 85 100
QUIESCENT CURRENT AND ISOLATED VOLTAGE
OUTPUT vs SUPPLY VOLTAGE
15 10
13
=0
11 Voltage at I ISO
= ±5mA
9
Voltage
at I ISO
Current
7
8 10 12 14
Supply Voltage at V(V)
8
6
4
2
16
ISOLATION-MODE REJECTION vs GAIN
200
f = 60Hz
180
RC is resistance in series
160 with input common, pin 3.
140 RC = 0
120
RC = 5k
100
80
60
1
Shielded
Unshielded
10 100
Gain (V/V)
1000
20
10
0
–10
–20
–30
–40
–50
10
ISOLATION MODE REJECTION
vs FREQUENCY
100 1k 10k
Frequency (Hz)
100k
50
40
30
20
10
0
0
AC AND DC LEAKAGE CURRENT
vs ISOLATION VOLTAGE
DC
AC, 60Hz
2k 4k 6k 8k
Isolation Voltage (Vp)
2.5
2
1.5
1
0.5
0
10k
®
5 3656


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Part Details

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Information Total 17 Pages
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