1
3650/52
3650
3652
Optically-Coupled Linear
ISOLATION AMPLIFIERS
FEATURES
q
BALANCED INPUT
q
LARGE COMMON-MODE VOLTAGES:
2000V Continuous
140dB Rejection
q
ULTRA LOW LEAKAGE:
0.35
A max at 240V/60Hz
1.8pF Leakage Capacitance
q
EXCELLENT GAIN ACCURACY:
0.05% Linearity
0.05%/1000 Hrs Stability
q
WIDE BANDWIDTH:
15kHz
3dB
1.2V/
s Slew Rate
APPLICATIONS
q
INDUSTRIAL PROCESS CONTROL
q
DATA ACQUISITION
q
INTERFACE ELEMENT
q
BIOMEDICAL MEASUREMENTS
q
PATIENT MONITORING
q
TEST EQUIPMENT
q
CURRENT SHUNT MEASUREMENT
q
GROUND-LOOP ELIMINATION
q
SCR CONTROLS
DESCRIPTION
The 3650 and 3652 are optically coupled integrated
circuit isolation amplifiers. Prior to their introduction
commercially available isolation amplifiers had been
modular or rack mounted devices using transformer
coupled modulation demodulation techniques.
Compared to these earlier isolation amplifiers, the
3650 and 3652 have the advantage of smaller size,
lower cost, wider bandwidth and integrated circuit
reliability. Also, because they use a DC analog modu-
lation technique as opposed to a carrier-type tech-
nique, they avoid the problems of electro-
magnetic interference (both transmitted and received)
that most of the modular isolation amplifiers exhibit.
A
1
A
1
11
10
8
9
Light
Flux
Coupling
23
A
3
A
4
1.6M
1.6M
R
G1
R
G2
R
IN
3652 Only
Common to 3650 and 3652
3
1
6
4
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
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
1976 Burr-Brown Corporation
PDS-342L
Printed in U.S.A. August, 1997
SBOS129
2
3650/52
SPECIFICATIONS
At +25
C and
15VDC supply voltages, unless otherwise specified.
10
6
10
6
R
G1
+ R
G2
+ R
IN
R
G1
+ R
G2
+ R
IN
+ R
O
25
90
30
PRODUCT
3650MG, HG
(1)
3650JG
3650KG
3652MG, HG
(1)
3652JG
ISOLATION
Isolation Voltage
Rated Continuous, min
2000Vp or VDC
Tested Voltage, min, 10s Duration
5000Vp
Isolation Mode Rejection, G = 10
DC
140dB
60Hz, 5000
Source Unbalance
120dB
Leakage Current, 240V/60Hz
0.35
A, max
Isolation Impedance
Capacitance
1.8pF
Resistance
10
12
GAIN
Gain Equation
for Current Sources
G
1
= 10
6
V/Amp
G
1
= 1.0057 x 10
6
V/Amp
(2)
for Voltage Sources
G
V
1 = V/V
V/V
Input Resistance, R
IN
, max
25
Buffer Output Impedance, R
O
Not Applicable
Gain Equation Error, max
(3)
1.5%
0.5%
0.5%
1.5%
(4)
0.5%
(4)
Gain Nonlinearity
0.05% typ
0.2% max
0.03% typ
0.1% max
0.02% typ
0.05% max
0.05% typ
0.2% max
0.05% typ
0.1% max
Gain vs Temperature
300ppm/
C
100ppm/
C
50ppm/
C
300ppm/
C
200ppm/
C
Gain vs Time
0.05%/1000hrs
0.05%/1000hrs
Frequency Response
Slew Rate
0.7V/
s min, 1.2V/
s typ
3dB Frequency
15kHz
Settling Time
to
0.01%
400
s
to
0.1%
200
s
INPUT STAGE
(5)
Input Offset Voltage
at 25
C, max
(3)
5mV
1mV
0.5mV
5mV
2mV
vs Temperature, max
25
V/
C
10
V/
C
5
V/
C
50
V/
C
25
V/
C
vs Supply
100
V/V
100
V/V
vs Time
50
V/1000hrs
100
V/1000hrs
Input Bias Current
at 25
C
10nA typ, 40nA max
10pA typ, 50pA max
vs Temperature
0.3nA/
C
Doubles Every +10
C
vs Supply
0.2nA/V
1pA/V
Input Offset Current
10pA
vs Temperature
Effects Included
Doubles Every +10
C
vs Supply
In Output Offset
1pA/V
Input Impedance
Differential
"R
IN
" = 25
max
10
11
Common-Mode
10
9
10
11
Input Noise
Voltage, 0.05Hz to 100Hz
4
Vp-p
8
Vp-p
10Hz to 10kHz
4
Vrms
5
Vrms
Input Voltage Range
Common-Mode, Linear Operation,
(|V| 5)V
(|V| 5)
w/o damage, at +,
V
V
at +I, I
Not Applicable
(6)
300V for 10ms
(7)
at +I
R
, I
R
Not Applicable
(6)
3000V for 10ms
(7)
Differential, w/o damage, at +,
V
V
Differential, w/o damage, at +I, I
Not Applicable
600V for 10ms
(7)
Differential, w/o damage,
at +I
R
, I
R
Not Applicable
6000V for 10ms
(7)
Common-Mode Rejection, 60Hz
90dB at 60Hz, 5k
Imbalance
80dB at 60Hz, 5k
Imbalance
Power Supply (Input Stage Only)
Voltage (at "+V" and "V")
8V to
18V
8V to
18V
Current
Quiescent
1.2mA
(8)
3mA
(8)
with
10V Output
(7)
+6.5mA or 6.5mA, typ
+8.5mA or 8.5mA, typ
+12mA or 12mA, max
+16mA, or 16mA, max
3
3650/52
A
1
A
2
1.6M
1.6M
R
O
2
R
O
2
Gain Adj
Gain Adj
8
11
13
14
15
16
12
10
9
32
29
17
C
23
20
26
6
4
3
1
C
+
V
+V
Bal
+V
CC
V
CC
Bal
3652
13
14
15
16
10
32
29
17
C
23
20
26
C
+
V
+V
Bal
+V
CC
V
CC
Bal
3650
12
11
SPECIFICATIONS
(CONT)
At +25
C and
15VDC supply voltages, unless otherwise specified.
PRODUCT
3650MG, HG
(1)
3650JG
3650KG
3652MG, HG
(1)
3652JG
OUTPUT STAGE
Output Voltage, min
10V
10V
Output Current, min
5mA
5mA
Output Offset Voltage
at 25
C, max
(3)
25mV
10mV
10mV
25mV
10mV
vs Temperature, max
900
V/
C
450
V/
C
300
V/
C
900
V/
C
450
V/
C
vs Supply
500
V/V
500
V/V
vs Time
1mV/1000hrs
1mV/1000hrs
Output Noise Voltage
0.05Hz to 100Hz
50
Vp-p
50
Vp-p
10Hz to 1kHz
65
Vrms
65
Vrms
Power Supply (Output Stage Only)
Voltage ("+V
CC
" and "V
CC
")
8V to
18V
Current
Quiescent
2.3mA typ,
6mA max
with
5mA Output, max
11mA
TEMPERATURE
(9)
Specification
0
c to +85
C
Operating
40
C to +100
C
Storage
40
C to +125
C
NOTES: (1) All electrical and mechanical specifications of the 3650MG and 3652MG are identical to the 3650HG and 3652HG, respectively, except that the following
specifications apply to the 3650MG and 3652MG: (a) Isolation test voltage duration increased from 10 seconds minimum to 60 seconds minimum; (b) Input offset voltage
at 25
C, max:
10mV; vs temperature max:
100
V/
C; (c) Output offset voltage at 25
C, max;
50mV; vs temperature max;
1.8mV/
C. (2) If used as 3650, see
Installation and Operating Instructions. (3) Trimmable to zero. (4) Gain error terms specified for inputs applied through buffer amplifiers (i.e.,
1 or
I
R
pins). (5) Input
stage specifications at +I and I inputs for 3652 unless otherwise noted. (6) Maximum safe input current at either input is 10mA. (7) Continuous rating is 1/3 pulse rating.
(8) Load current is drawn from one supply lead at a time: other supply current at quiescent level. For 3652 add 0.2mA/V of positive CMV. (9) dT/dt
<
1
C/minute below
0
C, and long-term storage above 100
C is not recommended. Also limit the repeated thermal cycles to be within the 0
C to +85
C temperature range.
PIN CONFIGURATIONS
PACKAGE INFORMATION
PACKAGE DRAWING
PRODUCT
PACKAGE
NUMBER
(1)
3650
32-Pin DIP
77
3652
32-Pin DIP
77
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
4
3650/52
GAIN ERROR vs FREQUENCY
Frequency (kHz)
8
1
2
0
2
4
6
Gain Error (dB)
30
3
10
Gain = 1
Gain = 100
DISTORTION vs FREQUENCY
Frequency (kHz)
0.1
0.1
10
3
1
3
10
3
1
0.3
Distortion (%)
V
OUT
= +10V
R
L
= 2k
REJECTION vs RESISTOR IMBALANCE
Input Resistor Imbalance
40
0
1
0.25
0.50
0.75
160
120
80
Rejection (dB)
R
G1
R
G1
+ R
G2
or
R
G2
R
G1
+ R
G2
IMR 60Hz
CMR 60Hz
G =100
G =100
G =100
G =1
G =1
G =1
3652
3650
3650
3652
NORMALIZED LINEARITY vs TEMPERATURE
Temperature (C)
1
25
1.5
1.4
1.3
1.2
1.1
Relative Nonlinearity
0
25
50
75
100
ISOLATION LEAKAGE CURRENT
vs ISOLATION VOLTAGE
Isolation Voltage (kV)
Leakage Current
A AC or 100s pA, DC
0
0
6
2
4
5
4
3
2
1
1
3
5
Typ at 60Hz
Typ at DC
INPUT STAGE SUPPLY CURRENT
vs OUTPUT VOLTAGE
Output Voltage (V)
Supply Current (mA)
0
15
15
5
5
12
10
8
6
4
2
10
0
10
Add 2mA typ, 4mA max for 3652
at V
at V+
Max at 70C
Max at 25C
Typ at 70C
Typ at 25C
Typ at 25C
3mA
1.2mA
TYPICAL PERFORMANCE CURVES
Typical at +25
C and
15VDC power supplies, unless otherwise noted.
5
3650/52
OUTPUT VOLTAGE AND GAIN ERROR vs TIME
Time of Operation (Hours)
8
100
100K
14
12
10
Estimated Output Swing (+V)
1k
10k
0
0.5
0.1
0.05
Gain Error Change (%)
70C
70C
25C
Gain Error
Change
140
120
100
80
60
1
10
100
1000
Gain
3652 COMMON-MODE AND
ISOLATION-MODE REJECTION vs GAIN
Rejection (dB)
Isolation-mode Rejection
Common-mode Rejection
DC at I or I
R
pins
60Hz at I pins
60Hz at I
R
pins
60Hz at I
R
pins
DC at I or I
R
pins
60Hz at I pins
140
120
100
80
60
1
10
100
1000
Gain
3650 COMMON-MODE AND
ISOLATION-MODE REJECTION vs GAIN
Rejection (dB)
Isolation-mode Rejection
Common-mode Rejection
DC
60Hz
60Hz
DC
OUTPUT VOLTAGE SWING
vs INPUT SUPPLY VOLTAGE
Input Supply Voltage (V)
0
5
20
15
10
5
Output Voltage (V)
10
15
Typ at 25C
25C
70C
Guaranteed
Min at Output
Supply 15V
PHASE SHIFT vs FREQUENCY
Frequency (kHz)
200
0.3
0
40
80
120
160
Phase Shift (Deg)
30
1
3
10
Gain 1 to 100
TYPICAL PERFORMANCE CURVES
(CONT)
Typical at +25
C and
15VDC power supplies, unless otherwise noted.
REJECTION vs FREQUENCY
Frequency (kHz)
40
0.1
140
120
100
80
60
Rejection (dB)
0.3
1
3
10
30
IMR
CMR
Supply Voltage
Gain = 100
3650
+V
V
3652
PDF 
ZIP