OPA547
OPA
547
O PA
547
O PA
547
SBOS056F – JANUARY 2002 – JULY 2005
High-Voltage, High-Current
OPERATIONAL AMPLIFIER
FEATURES
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WIDE SUPPLY RANGE
Single Supply: +8V to +60V
Dual Supply:
±
4V to
±
30V
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HIGH OUTPUT CURRENT:
500mA Continuous
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WIDE OUTPUT VOLTAGE SWING
q
FULLY PROTECTED:
Thermal Shutdown
Adjustable Current Limit
q
OUTPUT DISABLE CONTROL
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THERMAL SHUTDOWN INDICATOR
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HIGH SLEW RATE: 6V/µs
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LOW QUIESCENT CURRENT
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PACKAGES:
7-Lead TO-220, Zip and Straight Leads
7-Lead DDPAK Surface-Mount
DESCRIPTION
The OPA547 is a low-cost, high-voltage/high-current opera-
tional amplifier ideal for driving a wide variety of loads. A
laser-trimmed monolithic integrated circuit provides excellent
low-level signal accuracy and high output voltage and cur-
rent.
The OPA547 operates from either single or dual supplies for
design flexibility. In single-supply operation, the input com-
mon-mode range extends below ground.
The OPA547 is internally protected against over-temperature
conditions and current overloads. In addition, 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 0mA to 750mA with a 0 to 150µA 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 current
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 and straight lead 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.
APPLICATIONS
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q
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VALVE, ACTUATOR DRIVERS
SYNCHRO, SERVO DRIVERS
POWER SUPPLIES
TEST EQUIPMENT
TRANSDUCER EXCITATION
AUDIO AMPLIFIERS
V+
–
V
IN
OPA547
+
V
IN
V
O
I
LIM
R
CL
(1/4 Watt Resistor)
R
CL
sets the current limit
value from 0 to 750mA.
E/S
V–
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2002-2005, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
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
NOTES: (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.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments 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 degradation
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.
PACKAGE/ORDERING INFORMATION
For the most current package and ordering information, see the Package Ordering Addendum at the end of this document, or see
the TI website at www.ti.com.
PIN CONFIGURATIONS
Top Front View
7-Lead
Stagger-Formed
TO-220 (T)
7-Lead
Straight-Formed
TO-220 (T-1)
7-Lead
DDPAK (FA)
Surface-Mount
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
V
IN+
I
LIM
V+ E/S
V
IN–
V– V
O
V
IN+
I
LIM
V+ E/S
V
IN–
V– V
O
V
IN+
I
LIM
V+ E/S
V
IN–
V– V
O
NOTE: Tabs are electrically connected to the V– supply.
2
OPA547
www.ti.com
SBOS056F
ELECTRICAL CHARACTERISTICS
At T
CASE
= +25°C, V
S
=
±30V
and E/S pin open, unless otherwise noted.
OPA547T, F
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
vs Temperature
vs Power Supply
INPUT BIAS CURRENT
(1)
Input Bias Current
(2)
vs Temperature
Input Offset Current
NOISE
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range: Positive
Negative
Common-Mode Rejection
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain, f = 10Hz
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Full-Power Bandwidth
Settling Time:
±0.1%
Total Harmonic Distortion + Noise, f = 1kHz
OUTPUT
Voltage Output, Positive
Negative
Positive
Negative
Maximum Continuous Current Output: dc
ac
Leakage Current, Output Disabled, dc
Output Current Limit
Current Limit Range
Current Limit Equation
Current Limit Tolerance
(1)
Capacitive Load Drive
OUTPUT ENABLE /STATUS (E/S) PIN
Shutdown Input Mode
V
E/S
HIGH (output enabled)
V
E/S
LOW (output disabled)
I
E/S
HIGH (output enabled)
I
E/S
LOW (output disabled)
Output Disable Time
Output Enable Time
Thermal Shutdown Status Output
Normal Operation
Thermally Shutdown
Junction Temperature, Shutdown
Reset from Shutdown
POWER SUPPLY
Specified Voltage
Operating Voltage Range
Quiescent Current
Quiescent Current, Shutdown Mode
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance,
θ
JC
7-Lead DDPAK, 7-Lead TO-220
7-Lead DDPAK, 7-Lead TO-220
Thermal Resistance,
θ
JA
7-Lead DDPAK, 7-Lead TO-220
V
O
=
±25V,
R
L
= 1kΩ
V
O
=
±25V,
R
L
= 50Ω
R
L
= 50Ω
G = 1, 50V
PP
, R
L
= 50Ω
G = –10, 50V Step
R
L
= 50Ω, G = +3V, 1W Power
I
O
= 0.5A
I
O
= –0.5A
I
O
= 0.1A
I
O
= –0.1A
(V+) –2.2
(V–) +1.6
(V+) –1.8
(V–) +1.2
±500
500
100
Linear Operation
Linear Operation
V
CM
= (V–) –0.1V to (V+) –3V
(V+) –3
(V–) –0.1
80
CONDITION
MIN
TYP
±1
±25
10
–100
±0.5
±5
90
200
(V+) –2.3
(V–) –0.2
95
10
7
|| 6
10
9
|| 4
115
110
1
6
See Typical Curve
18
0.004
(3)
(V+) –1.9
(V–) +1.3
(V+) –1.5
(V–) +0.8
MAX
±5
100
–500
±50
UNITS
V
CM
= 0, I
O
= 0
T
A
= –40°C to +85°C
V
S
=
±4V
to
±30V
V
CM
= 0V
V
CM
= 0V
mV
µV/°C
µV/V
nA
nA/°C
nA
nV/√Hz
fA/√Hz
V
V
dB
Ω
|| pF
Ω
|| pF
dB
dB
MHz
V/µs
kHz
µs
%
V
V
V
V
mA
mArms
See Typical Curve
0 to
±750
I
LIM
= (5000)(4.75)/(31600Ω + R
CL
)
±10
±30
See Typical Curve
(4)
mA
A
mA
R
CL
= 31.6kΩ (I
LIM
=
±375mA),
R
L
= 50Ω
E/S Pin Open or Forced HIGH
E/S Pin Forced LOW
E/S Pin HIGH
E/S Pin LOW
(V–) +2.4
(V–) +0.8
–60
–65
1
3
(V–) +2.4
(V–) +3.5
(V–) +0.35
+160
+140
±30
±10
±4
V
V
µA
µA
µs
µs
V
V
°C
°C
V
V
mA
mA
°C
°C
°C
°C/W
°C/W
°C/W
Sourcing 20µA
Sinking 5µA, T
J
> 160°C
(V–) +0.8
±4
I
LIM
Connected to V–, I
O
= 0
I
LIM
Connected to V–
–40
–40
–55
f > 50Hz
dc
No Heat Sink
±30
±15
+85
+125
+125
2
3
65
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
Characteristics section for additional power levels. (4) See
Small-Signal Overshoot vs Load Capacitance
in the Typical Characteristics section.
OPA547
SBOS056F
www.ti.com
3
TYPICAL CHARACTERISTICS
At T
CASE
= +25°C, V
S
=
±30V,
and E/S pin open, unless otherwise noted.
OPEN-LOOP GAIN AND PHASE
vs FREQUENCY
120
R
L
= 50Ω
100
Input Bias Current (nA)
80
Gain (dB)
60
40
20
0
–20
1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
φ
G
0
Phase (°)
–45
–90
–135
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
–75
INPUT BIAS CURRENT vs TEMPERATURE
V
S
=
±5V
V
S
=
±30V
I
B
–50
–25
0
25
50
75
100
125
150
Temperature (°C)
±600
±500
CURRENT LIMIT vs TEMPERATURE
±600
±550
Current Limit (mA)
CURRENT LIMIT vs SUPPLY VOLTAGE
+I
LIM
R
CL
= 15.9kΩ
–I
LIM
R
CL
= 15.9kΩ
Current Limit (mA)
±500
±450
+400
±350
±300
±250
±200
±5
±10
±400
±300
±200
±100
–75
R
CL
= 31.6kΩ
R
CL
= 31.6kΩ
R
CL
= 63.4kΩ
R
CL
= 63.4kΩ
–50
–25
0
25
50
75
100
125
150
0
±15
±20
±25
±30
Temperature (°C)
Supply Voltage (V)
VOLTAGE NOISE DENSITY vs FREQUENCY
400
±12
±10
±8
±6
QUIESCENT CURRENT vs TEMPERATURE
V
S
=
±30V
I
Q
300
Quiescent Current (mA)
Voltage Noise (nV/√Hz)
200
V
S
=
±5V
V
S
=
±30V
I
Q
Shutdown
100
±4
V
S
=
±5V
±2
–75
0
1
10
100
1k
Frequency (Hz)
10k
100k
1M
–50
–25
0
25
50
75
100
125
150
Temperature (°C)
4
OPA547
www.ti.com
SBOS056F
TYPICAL CHARACTERISTICS
(Cont.)
At T
CASE
= +25°C, V
S
=
±30V,
and E/S pin open, unless otherwise noted.
COMMON-MODE REJECTION vs FREQUENCY
100
90
80
120
100
80
POWER SUPPLY REJECTION
vs FREQUENCY
+PSRR
CMR (dB)
60
50
40
30
20
10
100
1k
10k
100k
1M
Frequency (Hz)
PSR (dB)
70
60
40
–PSRR
20
0
1
10
100
1k
Frequency (Hz)
10k
100k
1M
50
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
OPEN-LOOP GAIN, COMMON-MODE REJECTION,
AND POWER SUPPLY REJECTION vs TEMPERATURE
105
A
OL
100
115
CMRR
95
PSRR
90
95
100
120
40
3
20
G = –1
10
CMRR (dB)
G = +1
0
0
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
Load Capacitance (pF)
85
–75
–50
–25
0
25
50
75
100
125
90
150
Temperature (°C)
GAIN-BANDWIDTH PRODUCT AND
SLEW RATE vs TEMPERATURE
1.25
Gain-Bandwidth Product (MHz)
TOTAL HARMONIC DISTORTION+NOISE
vs FREQUENCY
7.5
0.1
R
L
= 50Ω
G = +3
1
GBW
SR+
7
Slew Rate (V/µs)
1W
THD+N (%)
0.01
0.75
6.5
0.1W
0.5
SR–
6
0.001
6.25W
0.25
5.5
0
–75
–50
–25
0
25
50
75
100
125
5
150
0.0001
20
100
1k
Frequency (Hz)
10k
20k
Temperature (°C)
OPA547
SBOS056F
www.ti.com
5
PSRR, A
OL
(dB)
Overshoot (%)
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