1
OPA547
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
OPA547
1997 Burr-Brown Corporation
PDS-1326A
Printed in U.S.A. May, 1997
High-Voltage, High-Current
OPERATIONAL AMPLIFIER
DESCRIPTION
The OPA547 is a low cost, high-voltage/high-current
operational amplifier ideal for driving a wide variety
of loads. A laser-trimmed monolithic integrated cir-
cuit provides excellent low-level signal accuracy and
high output voltage and current.
The OPA547 operates from either single or dual sup-
plies for design flexibility. In single supply operation,
the input common-mode range extends below ground.
The OPA547 is internally protected against over-
temperature conditions and current overloads. In addi-
tion, the OPA547 was designed to provide an accurate,
user-selected current limit. Unlike other designs which
use a "power" resistor in series with the output current
path, the OPA547 senses the load indirectly. This
allows the current limit to be adjusted from 0 to
750mA with a 0 to 150
A control signal. This is easily
done with a resistor/potentiometer or controlled digi-
tally with a voltage-out or current-out DAC.
The Enable/Status (E/S) pin provides two functions.
An input on the pin not only disables the output stage
to effectively disconnect the load but also reduces the
quiescent to conserve power. The E/S pin output can
be monitored to determine if the OPA547 is in thermal
shutdown.
The OPA547 is available in an industry-standard
7-lead staggered TO-220 package and a 7-lead DDPAK
surface-mount plastic power package. The copper tab
allows easy mounting to a heat sink or circuit board
for excellent thermal performance. It is specified for
operation over the extended industrial temperature
range, 40
C to +85
C.
FEATURES
q
WIDE SUPPLY RANGE
Single Supply: +8V to +60V
Dual Supply:
4V to
30V
q
HIGH OUTPUT CURRENT:
500mA Continuous
q
WIDE OUTPUT VOLTAGE SWING
q
FULLY PROTECTED:
Thermal Shutdown
Adjustable Current Limit
q
OUTPUT DISABLE CONTROL
q
THERMAL SHUTDOWN INDICATOR
q
HIGH SLEW RATE: 6V/
s
q
LOW QUIESCENT CURRENT
q
PACKAGES:
7-Lead TO-220
7-Lead DDPAK Surface-Mount
APPLICATIONS
q
VALVE, ACTUATOR DRIVER
q
SYNCHRO, SERVO DRIVER
q
POWER SUPPLIES
q
TEST EQUIPMENT
q
TRANSDUCER EXCITATION
q
AUDIO AMPLIFIER
OPA547
V
IN
V
IN
+
V+
E/S
R
CL
R
CL
sets the current limit
value from 0 to 750mA.
(0.25W
Signal Resistor)
I
LIM
V
O
V
2
OPA547
SPECIFICATIONS
At T
CASE
= +25
C, V
S
=
30V and E/S pin open, unless otherwise noted.
OPA547T, F
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
V
CM
= 0, I
O
= 0
1
5
mV
vs Temperature
T
A
= 40
C to +85
C
25
V/
C
vs Power Supply
V
S
=
4V to
30V
10
100
V/V
INPUT BIAS CURRENT
(1)
Input Bias Current
(2)
V
CM
= 0V
100
500
nA
vs Temperature
0.5
nA/
C
Input Offset Current
V
CM
= 0V
5
50
nA
NOISE
Input Voltage Noise Density, f = 1kHz
90
nV/
Hz
Current Noise Density, f = 1kHz
200
fA/
Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range: Positive
Linear Operation
(V+) 3
(V+) 2.3
V
Negative
Linear Operation
(V) 0.1
(V) 0.2
V
Common-Mode Rejection
V
CM
= (V) 0.1V to (V+) 3V
80
95
dB
INPUT IMPEDANCE
Differential
10
7
|| 6
|| pF
Common-Mode
10
9
|| 4
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain, f = 10Hz
V
O
=
25V, R
L
= 1k
100
115
dB
V
O
=
25V, R
L
= 50
110
dB
FREQUENCY RESPONSE
Gain-Bandwidth Product
R
L
= 50
1
MHz
Slew Rate
G = 1, 50Vp-p, R
L
= 50
6
V/
s
Full Power Bandwidth
See Typical Curve
kHz
Settling Time:
0.1%
G = 10, 50V Step
18
s
Total Harmonic Distortion + Noise, f = 1kHz
R
L
= 50
, G = +3V, 1W Power
0.004
(3)
%
OUTPUT
Voltage Output, Positive
I
O
= 0.5A
(V+) 2.2
(V+) 1.9
V
Negative
I
O
= 0.5A
(V) +1.6
(V) +1.3
V
Positive
I
O
= 0.1A
(V+) 1.8
(V+) 1.5
V
Negative
I
O
= 0.1A
(V) +1.2
(V) +0.8
V
Maximum Continuous Current Output: dc
500
mA
ac
500
mArms
Leakage Current, Output Disabled, dc
See Typical Curve
Output Current Limit
Current Limit Range
0 to
750
mA
Current Limit Equation
I
LIM
= (5000)(4.75)/(31600
+ R
CL
)
A
Current Limit Tolerance
(1)
R
CL
= 31.6k
(I
LIM
=
375mA),
10
30
mA
R
L
= 50
Capacitive Load Drive
See Typical Curve
(4)
OUTPUT ENABLE /STATUS (E/S) PIN
Shutdown Input Mode
V
E/S
High (output enabled)
E/S Pin Open or Forced High
(V) +2.4
V
V
E/S
Low (output disabled)
E/S Pin Forced Low
(V) +0.8
V
I
E/S
High (output enabled)
E/S Pin High
60
A
I
E/S
Low (output disabled)
E/S Pin Low
65
A
Output Disable Time
1
s
Output Enable Time
3
ms
Thermal Shutdown Status Output
Normal Operation
Sourcing 20
A
(V) +2.4
(V) +3.5
V
Thermally Shutdown
Sinking 5
A, T
J
> 160
C
(V) +0.35
(V) +0.8
V
Junction Temperature, Shutdown
+160
C
Reset from Shutdown
+140
C
POWER SUPPLY
Specified Voltage
30
V
Operating Voltage Range
4
30
V
Quiescent Current
I
LIM
Connected to V, I
O
= 0
10
15
mA
Quiescent Current, Shutdown Mode
I
LIM
Connected to V
4
mA
TEMPERATURE RANGE
Specified Range
40
+85
C
Operating Range
40
+125
C
Storage Range
55
+125
C
Thermal Resistance,
JC
7-Lead DDPAK, 7-Lead TO-220
f > 50Hz
2
C/W
7-Lead DDPAK, 7-Lead TO-220
dc
3
C/W
Thermal Resistance,
JA
7-Lead DDPAK, 7-Lead TO-220
No Heat Sink
65
C/W
NOTES: (1) High-speed test at T
J
= +25
C. (2) Positive conventional current flows into the input terminals. (3) See "Total Harmonic Distortion+Noise" in the Typical
Performance Curves section for additional power levels. (4) See "Small-Signal Overshoot vs Load Capacitance" in the Typical Performance Curves section.
3
OPA547
7-Lead
Stagger-Formed
TO-220
NOTE: Tabs are electrically connected to V supply.
I
LIM
V
V
O
V+
V
IN
V
IN
1 2 3 4 5 6
E/S
7
7-Lead
DDPAK
Surface-Mount
+
I
LIM
V
V
O
V+
V
IN
V
IN
1 2 3 4 5 6
E/S
7
+
ABSOLUTE MAXIMUM RATINGS
Output Current ................................................................. See SOA Curve
Supply Voltage, V+ to V ................................................................... 60V
Input Voltage ....................................................... (V)0.5V to (V+)+0.5V
Input Shutdown Voltage ........................................................................ V+
Operating Temperature ................................................. 40
C to +125
C
Storage Temperature ..................................................... 55
C to +125
C
Junction Temperature ...................................................................... 150
C
Lead Temperature (soldering 10s)
(2) .................................................................
300
C
Top Front View
CONNECTION DIAGRAMS
NOTE: (1) Stresses above these ratings may cause permanent damage. (2)
Vapor-phase or IR reflow techniques are recommended for soldering the
OPA547F surface mount package. Wave soldering is not recommended due to
excessive thermal shock and "shadowing" of nearby devices.
ORDERING/PACKAGE INFORMATION
PACKAGE DRAWING
TEMPERATURE
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
OPA547T
7-Lead Stagger-Formed TO-220
327
40
C to +85
C
OPA547F
(2)
7-Lead DDPAK Surface-Mount
328
40
C to +85
C
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.
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet. (2) Available on Tape
and Reel.
4
OPA547
TYPICAL PERFORMANCE CURVES
At T
CASE
= +25
C, V
S
=
30V and E/S pin open, unless otherwise noted.
1
10
100
1k
10k
100k
1M
10M
120
100
80
60
40
20
0
20
Gain (dB)
0
45
90
135
180
Phase ()
Frequency (Hz)
OPEN-LOOP GAIN AND PHASE
vs FREQUENCY
R
L
= 50
G
1
10
100
1k
10k
100k
1M
400
300
200
100
0
Voltage Noise (nV/
Hz)
Frequency (Hz)
VOLTAGE NOISE DENSITY vs FREQUENCY
75
50
25
0
25
50
75
100
125
150
160
140
120
100
80
60
40
20
0
Input Bias Current (nA)
Temperature (C)
INPUT BIAS CURRENT vs TEMPERATURE
I
B
V
S
= 5V
V
S
= 30V
75
50
25
0
25
50
75
100
125
150
600
500
400
300
200
100
Current Limit (mA)
Temperature (C)
CURRENT LIMIT vs TEMPERATURE
R
CL
= 31.6k
R
CL
= 63.4k
R
CL
= 15.9k
0
5
10
15
20
25
30
600
550
500
450
+400
350
300
250
200
Current Limit (mA)
Supply Voltage (V)
CURRENT LIMIT vs SUPPLY VOLTAGE
R
CL
= 15.9k
R
CL
= 31.6k
R
CL
= 63.4k
+I
LIM
I
LIM
75
50
25
0
25
50
75
100
125
150
12
10
8
6
4
2
Quiescent Current (mA)
Temperature (C)
QUIESCENT CURRENT vs TEMPERATURE
I
Q
I
Q
Shutdown
V
S
= 30V
V
S
= 5V
V
S
= 30V
V
S
= 5V
5
OPA547
TYPICAL PERFORMANCE CURVES
(CONT)
At T
CASE
= +25
C, V
S
=
30V and E/S pin open, unless otherwise noted.
10
100
1k
10k
100k
1M
100
90
80
70
60
50
40
30
20
Common-Mode Rejection (dB)
Frequency (Hz)
COMMON-MODE REJECTION vs FREQUENCY
1
10
100
1k
10k
100k
1M
120
100
80
60
40
20
0
Power Supply Rejection (dB)
Frequency (Hz)
POWER SUPPLY REJECTION
vs FREQUENCY
+PSRR
PSRR
75
50
25
0
A
OL
25
50
75
100
125
150
105
100
95
90
85
CMRR (dB)
120
115
100
95
90
PSRR, A
OL
(dB)
Temperature (C)
OPEN-LOOP GAIN, COMMON-MODE REJECTION,
AND POWER SUPPLY REJECTION vs TEMPERATURE
CMRR
PSRR
75
50
25
0
25
50
75
100
125
150
1.25
1
0.75
0.5
0.25
0
7.5
7
6.5
6
5.5
5
Gain-Bandwidth Product (MHz)
Slew Rate (V/s)
Temperature (C)
GAIN-BANDWIDTH PRODUCT AND
SLEW RATE vs TEMPERATURE
SR+
SR
GBW
20
100
1k
10k
20k
0.1
0.01
0.001
0.0001
THD+N (%)
Frequency (Hz)
TOTAL HARMONIC DISTORTION+NOISE
vs FREQUENCY
R
L
= 50
G = +3
0.1W
1W
6.25W
0
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
50
40
3
20
10
0
Overshoot (%)
Load Capacitance (pF)
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
G = 1
G = +1
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