1
OPA2650
FEATURES
q
LOW POWER: 50mW/Chan.
q
UNITY GAIN STABLE BANDWIDTH:
360MHz
q
FAST SETTLING TIME: 20ns to 0.01%
q
LOW HARMONICS: 77dBc at 5MHz
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DIFFERENTIAL GAIN/PHASE ERROR:
0.01%/0.025
q
HIGH OUTPUT CURRENT: 85mA
DESCRIPTION
The OPA2650 is a dual, low power, wideband voltage
feedback operational amplifier. It features a high band-
width of 360MHz as well as a 12-bit settling time of
only 20ns. The low distortion allows its use in commu-
nications applications, while the wide bandwidth and
true differential input stage make it suitable for use in
a variety of active filter applications. Its low distortion
gives exceptional performance for telecommunica-
tions, medical imaging and video applications.
The OPA2650 is internally compensated for unity-
gain stability. This amplifier has a fully symmetrical
differential input due to its "classical" operational
amplifier circuit architecture. Its unusual combination
of speed, accuracy and low power make it an outstand-
ing choice for many portable, multi-channel and other
high speed applications, where power is at a premium.
The OPA2650 is also available in single (OPA650)
and quad (OPA4650) configurations.
Dual Wideband, Low Power Voltage Feedback
OPERATIONAL AMPLIFIER
1994 Burr-Brown Corporation
PDS-1266C
Printed in U.S.A. June, 1997
NOTE: Diagram shows only one-half of the OPA2650.
APPLICATIONS
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HIGH RESOLUTION VIDEO
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BASEBAND AMPLIFIER
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CCD IMAGING AMPLIFIER
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ULTRASOUND SIGNAL PROCESSING
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ADC/DAC GAIN AMPLIFIER
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ACTIVE FILTERS
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HIGH SPEED INTEGRATORS
q
DIFFERENTIAL AMPLIFIER
Current
Mirror
Output
Stage
C
C
Inverting
Input
Non-Inverting
Input
+V
S
Output
V
S
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
OPA2650
OPA2650
OPA2650
2
OPA2650
NOTES: (1) An asterisk (
T
) specifies the same value as the grade to the left. (2) Frequency response can be strongly influenced by PC board parasitics. The
demonstration boards show low parasitic layouts for this part. Refer to the demonstration board layout for details. (3) Slew rate is rate of change from 10% to 90%
of output voltage step.
SPECIFICATIONS
At T
A
= +25
C, V
S
=
5V, R
L
= 100
, and R
FB
= 402
,
unless otherwise noted. R
FB
= 25
for a gain of +1.
OPA2650P, U, E
OPA2650PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
FREQUENCY RESPONSE
Closed-Loop Bandwidth
(2)
G = +1
360
T
(1)
MHz
G = +2
108
T
MHz
G = +5
32
T
MHz
G = +10
16
T
MHz
Gain Bandwidth Product
G
+5
160
MHz
Bandwidth for 0.1dB Flatness
(2)
G = +2
21
T
MHz
Slew Rate
(3)
G = +1, 2V Step
240
T
V/
s
Over Temperature Range
220
T
V/
s
Rise Time
G = +1, 0.2V Step
1
T
ns
Fall Time
G = +1, 0.2V Step
1
T
ns
Settling Time
0.01%
G = +1, 2V Step
20
T
ns
0.1%
G = +1, 2V Step
11
T
ns
1%
G = +1, 2V Step
6.7
T
ns
Spurious Free Dynamic Range
G = +1, f = 5.0MHz, V
O
= 2Vp-p
R
L
= 100
72
T
dB
R
L
= 402
77
T
dB
Differential Gain
G = +2, NTSC, V
O
= 1.4Vp-p, R
L
= 150
0.01
T
%
Differential Phase
G = +2, NTSC, V
O
= 1.4Vp-p, R
L
= 150
0.025
T
Degrees
Crosstalk
(2)
Input Referred, 5MHz, Channel-to-Channel
84
T
dB
INPUT OFFSET VOLTAGE
Input Offset Voltage
V
CM
= 0V
1
5
1
3
mV
Average Drift
3
T
V/
C
Power Supply Rejection (+V
S
)
Input Referred, V
S
=
4.5V to
5.5V
60
76
70
T
dB
(V
S
)
47
54
50
T
dB
INPUT BIAS CURRENT
Input Bias Current
V
CM
= 0V
5
20
T
10
A
Over Temperature Range
30
20
A
Input Offset Current
V
CM
= 0V
0.5
1
0.2
0.5
A
Over Temperature Range
3
2
A
INPUT NOISE
Input Voltage Noise
Noise Density, f = 100Hz
43
T
nV/
Hz
f = 10kHz
9.4
T
nV/
Hz
f
1MHz
8.4
T
nV/
Hz
Integrated Noise
f
B
= 10Hz to 100MHz
84
T
Vrms
Input Bias Current Noise
Noise Density, f
0.1MHz
1.2
T
pA/
Hz
INPUT VOLTAGE RANGE
Common-Mode Input Range
2.8
T
V
Over Temperature Range
2.2
T
V
Common-Mode Rejection
Input Referred, V
CM
=
0.5V
65
90
70
T
dB
INPUT IMPEDANCE
Differential
15 || 1
T
K
|| pF
Common-Mode
16 || 1
T
M
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
V
O
=
2V, R
L
= 100
45
51
47
T
dB
Over Temperature Range
43
45
dB
OUTPUT
Voltage Output
Over Temperature Range
No Load
2.2
3.0
2.4
T
V
R
L
= 250
2.2
2.5
2.4
T
V
R
L
= 100
2.0
2.3
2.2
T
V
Output Current, Sourcing
75
110
T
T
mA
Over Temperature Range
65
T
mA
Output Current, Sinking
65
85
T
T
mA
Over Temperature Range
35
T
mA
Short Circuit Current
150
T
mA
Output Resistance
f < 100kHz, G = +1
0.08
T
POWER SUPPLY
Specified Operating Voltage
5
T
V
Operating Voltage Range
4.5
5.5
T
T
V
Quiescent Current
Both Channels, V
S
=
5V
11
15.5
T
13.5
mA
Over Temperature Range
17.5
T
16
mA
THERMAL CHARACTERISTICS
Temperature Range
Specification: P, U, E, PB, UB
40
+85
T
T
C
Thermal Resistance,
JA
Junction to Ambient
P
8-Pin DIP
100
T
C/W
U
SO-8
125
T
C/W
E
MSOP-8
150
T
C/W
3
OPA2650
Supply Voltage .................................................................................
5.5V
Internal Power Dissipation ........................... See Thermal Characteristics
Differential Input Voltage ..................................................................
1.2V
Input Voltage Range ............................................................................
V
S
Storage Temperature Range: P, PB, U, UB, E ............ 40
C to +125
C
Lead Temperature (DIP, soldering, 10s) ...................................... +300
C
(SO-8 and MSOP-8, soldering, 3s) ................ +260
C
Junction Temperature (T
J
) ............................................................ +175
C
ABSOLUTE MAXIMUM RATINGS
Top View
DIP/SO-8/MSOP-8
PIN CONFIGURATION
+V
S
Output
2
Input
2
+Input
2
Output
1
Input
1
+Input
1
V
S
1
2
3
4
8
7
6
5
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.
ELECTROSTATIC
DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from per-
formance degradation to complete device failure. Burr-Brown
Corporation recommends that all integrated circuits be handled
and stored using appropriate ESD protection methods.
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 published speci-
fications.
PACKAGE
DRAWING
TEMPERATURE
PACKAGE
ORDERING
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
MARKING
(2)
NUMBER
(3)
OPA2650P
8-Pin Plastic DIP
006
40
C to +85
C
OPA2650P
OPA2650P
OPA2650PB
8-Pin Plastic DIP
006
40
C to +85
C
OPA2650PB
OPA2650PB
OPA2650U
SO-8 Surface Mount
182
40
C to +85
C
OPA2650U
OPA2650U
OPA2650UB
SO-8 Surface Mount
182
40
C to +85
C
OPA2650UB
OPA2650UB
OPA2650E
MSOP-8
337
40
C to +85
C
B50
OPA2650E-250
OPA2650E-2500
NOTE: (1) For detailed drawing and dimension table, see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) The "B" grade will be marked with a "B"
by pin 8. (3) The MSOP-8 is available on 7" tape and reel with 250 parts, and on 14" tape and reel with 2500 parts. For example, ordering 250 pieces of "OPA2650E-
250" will get a single 250 piece tape and reel. Refer to Appendix B of Burr-Brown IC Data Book for detailed Tape and Reel Mechanical information.
PACKAGE/ORDERING INFORMATION
4
OPA2650
TYPICAL PERFORMANCE CURVES
At T
A
= +25
C, V
S
=
5V, R
L
= 100
, and R
FB
= 402
,
unless otherwise noted. R
FB
= 25
for a gain of +1.
INPUT VOLTAGE AND CURRENT NOISE
vs FREQUENCY
Frequency (Hz)
100
1k
10k
100k
1M
100
10
1
Input Current Noise (pA/
Hz)
Input Voltage Noise (nV/
Hz)
Non-inverting and
Inverting Current Noise
Voltage Noise
COMMON-MODE REJECTION
vs INPUT COMMON-MODE VOLTAGE
100
90
80
70
60
4
3
2
1
0
1
2
3
4
Common Mode-Rejection (dB)
Common-Mode Voltage (V)
A
OL
, PSR AND CMRR vs TEMPERATURE
100
90
80
70
60
50
40
50
25
0
25
50
75
125
A
OL
, PSR and CMRR (dB)
Temperature (C)
A
OL
PSR
CMRR
PSR+
INPUT BIAS CURRENT vs TEMPERATURE
6
5
4
3
3
2
1
0
50
25
0
25
50
75
100
Input Bias Current (A)
Offset Voltage (mV)
Temperature (C)
I
B
V
OS
SUPPLY CURRENT vs TEMPERATURE
12
11
10
9
75
50
25
0
25
50
75
100
125
Supply Current (mA)
Temperature (C)
I
Q
OUTPUT CURRENT vs TEMPERATURE
110
100
90
80
70
50
25
0
25
50
75
100
Outrput Current (mA)
Temperature (C)
I
O
I
O
+
5
OPA2650
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25
C, V
S
=
5V, R
L
= 100
, and R
FB
= 402
,
unless otherwise noted. R
FB
= 25
for a gain of +1.
LARGE SIGNAL TRANSIENT RESPONSE
(G = +1)
Time (5ns/div)
2.0
1.6
1.2
0.8
0.4
0
0.4
0.8
1.2
1.6
2.0
Output Voltage (V)
SMALL SIGNAL TRANSIENT RESPONSE
(G = +1)
Time (5ns/div)
200
160
120
80
40
0
40
80
120
160
200
Output Voltage (mV)
RECOMMENDED ISOLATION RESISTANCE
vs CAPACITIVE LOAD
40
30
20
10
0
0
20
40
60
80
100
Isolation Resistance, R
ISO
(
)
Capacitive Load, C
L
(pF)
OPA2650
C
L
1k
R
ISO
25
CLOSED-LOOP BANDWIDTH (G = +1)
Frequency (Hz)
6
3
0
3
6
9
1M
10M
100M
1G
Gain (dB)
DIP Bandwidth
= 366MHz
SO-8 Bandwidth
= 331MHz
MSOP-8 Bandwidth
= 281MHz
CLOSED-LOOP BANDWIDTH (G = +2)
Frequency (Hz)
9
6
3
0
3
6
9
1M
10M
100M
1G
MSOP-8/SO-8/DIP Bandwidth = 108MHz
Gain (dB)
CLOSED-LOOP BANDWIDTH (G = +5)
Frequency (Hz)
20
17
14
11
8
5
2
1M
10M
100M
MSOP-8/SO-8/DIP Bandwidth = 31MHz
Gain (dB)
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