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PDF OPA551 Data sheet ( Hoja de datos )
| Número de pieza | OPA551 | |
| Descripción | High-Voltage / High-Current OPERATIONAL AMPLIFIERS | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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®
For most current data sheet and other product
information, visit www.burr-brown.com
OPA551
OPA551
OPA551
OPA551
OPA552
High-Voltage, High-Current
OPERATIONAL AMPLIFIERS
FEATURES
q WIDE SUPPLY RANGE: ±4V to ±30V
q HIGH OUTPUT CURRENT: 200mA Continuous
q LOW NOISE: 14nV/√Hz
q FULLY PROTECTED:
Thermal Shutdown
Output Current-Limited
q THERMAL SHUTDOWN INDICATOR
q WIDE OUTPUT SWING: 2V From Rail
q FAST SLEW RATE:
OPA551: 15V/µs
OPA552: 24V/µs
q WIDE BANDWIDTH:
OPA551: 3MHz
OPA552: 12MHz
q PACKAGES: DIP-8, SO-8, or DDPAK-7
APPLICATIONS
q TELEPHONY
q TEST EQUIPMENT
q AUDIO AMPLIFIER
q TRANSDUCER EXCITATION
q SERVO DRIVER
DESCRIPTION
The OPA551 and OPA552 are low cost op amps with
high-voltage (60V) and high-current (200mA) capa-
bility.
The OPA551 is unity-gain stable and features high
slew rate (15Vµs) and wide bandwidth (3MHz). The
OPA552 is optimized for gains of 5 or greater, and
offers higher speed with a slew rate of 24V/µs and a
bandwidth of 12MHz. Both are suitable for telephony,
audio, servo, and test applications.
These laser-trimmed, monolithic integrated circuits
provide excellent low-level accuracy along with high
output swing. High performance is maintained as the
amplifier swings to its specified limits.
The OPA551 and OPA552 are internally protected
against over-temperature conditions and current over-
loads. The thermal shutdown indicator “flag” provides
a current output to alert the user when thermal shut-
down has occurred.
The OPA551 and OPA552 are available in DIP-8 and
SO-8 packages, as well as a DDPAK-7 surface-
mount plastic power package. They are specified for
operation over the extended industrial temperature
range, –40°C to +125°C.
OPA551, OPA552
1234567
NOTE: Tab is
connected to
V– supply.
+In NC V+ Flag
–In V– Out
DDPAK-7 Surface-Mount (F)
OPA551, OPA552
V– 1
–In 2
+In 3
V– 4
8 Flag
7 V+
6 Out
5 V–
SO-8 (U)
OPA551, OPA552
NC 1
–In 2
+In 3
V– 4
8 Flag
7 V+
6 Out
5 NC
DIP-8 (P)
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1999 Burr-Brown Corporation
PDS-11472A
OPA551, OPrPintAed 5in5U.2S.A. July, 1999
®
1 page  
TYPICAL PERFORMANCE CURVES
At TJ = +25°C, VS = ±30V and RL = 3kΩ, unless otherwise noted.
All temperatures are junction temperatures unless otherwise noted. Refer to the Applications Information section to calculate junction temperatures from ambient
temperatures for a specific configuration.
140
120
100
80
60
40
20
0
–20
–40
1
OPEN-LOOP GAIN AND PHASE vs FREQUENCY
OPA551
Gain
OPA551
0
–20
–40
Phase
–60
–80
–100
–120
–140
–160
–180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
140
120
100
80
60
40
20
0
–20
–40
1
OPEN-LOOP GAIN AND PHASE vs FREQUENCY
OPA552
Gain
OPA552
0
–20
–40
–60
Phase
–80
–100
–120
–140
–160
–180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
COMMON-MODE REJECTION RATIO vs FREQUENCY
120
100
80
60
40
20
0
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
10k
1k
in
100
10
1
10
en
100 1k
10k 100k 1M
Frequency (Hz)
POWER SUPPLY REJECTION RATIO vs FREQUENCY
120
100
–PSRR
80
60
+PSRR
40
20
0
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
0.1
0.01
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
VO = 15Vrms
RL = 3kΩ, 300Ω
G = 3 (OPA551)
G = 5 (OPA552)
0.001
0.0001
1
100 1k 10k
Frequency (Hz)
100k
®
5 OPA551, OPA552
5 Page 
power supplies, this creates an internal dissipation of 11.4W.
This far exceeds the maximum rating and is not recom-
mended. If operation in this region is unavoidable, use the
DDPAK with a heat sink.
1000
100
10
1
SAFE OPERATING AREA—8-PIN DIP
125°C
25°C
85°C
0.1
1
10
| VS | – | VO | (V)
FIGURE 3. DIP-8 Safe Operating Area.
100
1000
100
10
1
SAFE OPERATING AREA—SO-8
125°C
25°C
85°C
0.1
1
10
| VS | – | VO | (V)
FIGURE 4. SO-8 Safe Operating Area.
100
1000
100
10
1
SAFE OPERATING AREA—DDPAK
25°C
25°C
1" Copper
125°C
125°C
1" Copper
85°C
HEAT SINKING
Power dissipated in the OPA551 or OPA552 will cause the
junction temperature to rise. For reliable operation, the
junction temperature should be limited to +125°C. Many
applications will require a heat sink to assure that the
maximum operating junction temperature is not exceeded.
The heat sink required depends on the power dissipated and
on ambient conditions.
For heat sinking purposes, the tab of the DDPAK is typically
soldered directly to a circuit board copper area. Increasing
the copper area improves heat dissipation. Figure 6 shows
typical thermal resistance from junction-to-ambient as a
function of copper area.
Depending on conditions, additional heat sinking may be
required. Aavid Thermal Products Inc. manufactures sur-
face-mountable heat sinks designed specifically for use with
DDPAK packages. Further information is available on
Aavid’s web site, www.aavid.com.
To estimate the margin of safety in a complete design
(including heat sink), increase the ambient temperature until
the thermal protection is activated. Use worst-case load and
signal conditions. For good reliability, the thermal protec-
tion should trigger more than +25°C above the maximum
expected ambient condition of your application. This pro-
duces a junction temperature of +125°C at the maximum
expected ambient condition.
50
40
30
20
10
0
0
THERMAL RESISTANCE vs
CIRCUIT BOARD COPPER AREA
OPA551, OPA552
Surface-Mount Package
1oz. copper
1234
Copper Area (inches2)
Circuit Board Copper Area
5
0.1
1
10
| VS | – | VO | (V)
FIGURE 5. DDPAK-7 Safe Operating Area.
100 OPA551, OPA552
Surface-Mount Package
FIGURE 6. DDPAK Thermal Resistance vs Circuit Board
Copper Area.
®
11 OPA551, OPA552
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet OPA551.PDF ] | |
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