nternational 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
OPA2680
1997 Burr-Brown Corporation
PDS-1433C
Printed in U.S.A. October, 1999
Dual Wideband, Voltage Feedback
OPERATIONAL AMPLIFIER With Disable
TM
FEATURES
q
WIDEBAND +5V OPERATION: 220MHz (G = 2)
q
HIGH OUTPUT CURRENT: 150mA
q
OUTPUT VOLTAGE SWING:
4.0V
q
HIGH SLEW RATE: 1800V/
s
q
LOW SUPPLY CURRENT: 6.4mA/Ch.
q
LOW DISABLED CURRENT: 300
A/Ch.
q
ENABLE/DISABLE TIME: 25ns/100ns
APPLICATIONS
q
VIDEO LINE DRIVING
q
xDSL LINE DRIVER/RECEIVER
q
HIGH SPEED IMAGING CHANNELS
q
ADC BUFFERS
q
PORTABLE INSTRUMENTS
q
TRANSIMPEDANCE AMPLIFIERS
q
ACTIVE FILTERS
Single-Supply, DC-Coupled, Single-to-Differential ADC Driver
DESCRIPTION
The OPA2680 represents a major step forward in unity
gain stable, voltage feedback op amps. A new internal
architecture provides slew rate and full power band-
width previously found only in wideband current feed-
back op amps. A new output stage architecture delivers
high currents with a minimal headroom requirement.
These combine to give exceptional single supply opera-
tion. Using a single +5V supply, the OPA2680 can
deliver a 1V to 4V output swing with over 100mA drive
current and 150MHz bandwidth. This combination of
features makes the OPA2680 an ideal RGB line driver
or single supply ADC input driver.
The OPA2680's low 6.4mA/ch. supply current is pre-
cisely trimmed at 25
C. This trim, along with low tem-
perature drift, guarantees lower maximum supply current
than competing products. System power may be reduced
further using the optional disable control pin (SO-14
package only). Leaving this disable pin open, or holding
it high, will operate the OPA2680N normally. If pulled
low, the OPA2680N supply current drops to less than
600
A while the output goes into a high impedance state.
1/2
OPA2680
1/2
OPA2680
+5V
50
V
IN
0V to +1V
1.5k
1.5k
50
1.6k
1.6k
3.2k
800
400
400
50
200
0.1
F
IN
+3.5V
0.1
F
+1.5V
+5V
10pF
10pF
Clock
IN
0.1
F
+2.5V
+1.5V
REFT
REFB
ADS822
10-Bit
40MSPS
2.5V
CM
1V
DIFF
OPA2680 RELATED PRODUCTS
SINGLES
DUALS
TRIPLES
Voltage Feedback
OPA680
OPA2680
OPA3680
Current Feedback
OPA681
OPA2681
OPA3681
Fixed Gain
OPA682
OPA2682
OPA3682
OPA2680
OPA2680
2
OPA2680
SPECIFICATIONS: V
S
=
5V
R
F
= 402
, R
L
= 100
, and G = +2
,
(Figure 1 for AC performance only), unless otherwise noted.
OPA2680U, N
TYP
GUARANTEED
0
C to
40
C to
MIN/
TEST
PARAMETER
CONDITIONS
+25
C
+25
C
(2)
70
C
(3)
+85
C
(3)
UNITS
MAX
LEVEL
(1)
AC PERFORMANCE (Figure 1)
Small-Signal Bandwidth
G = +1, V
O
= 0.5Vp-p, R
F
= 25
400
MHz
typ
C
G = +2, V
O
= 0.5Vp-p
220
210
200
190
MHz
min
B
G = +10, V
O
= 0.5Vp-p
30
20
20
20
MHz
min
B
Gain-Bandwidth Product
G
10
300
200
200
200
MHz
min
B
Bandwidth for 0.1dB Gain Flatness
G = +2, V
O
< 0.5Vp-p
30
MHz
typ
C
Peaking at a Gain of +1
V
O
< 0.5Vp-p
4
dB
typ
C
Large Signal Bandwidth
G = +2, V
O
= 5Vp-p
175
MHz
typ
C
Slew Rate
G = +2, 4V Step
1800
1400
1200
900
V/
s
min
C
Rise/Fall Time
G = +2, V
O
= 0.5V Step
1.4
ns
typ
C
G = +2, V
O
= 5V Step
2.8
ns
typ
C
Settling Time to 0.02%
G = +2, V
O
= 2V Step
12
ns
typ
C
0.1%
G = +2, V
O
= 2V Step
8
ns
typ
C
Harmonic Distortion
G = +2, f = 5MHz, V
O
= 2Vp-p
2nd Harmonic
R
L
= 100
68
63
62
60
dBc
max
,
R
L
500
80
70
68
65
dBc
max
B
3rd Harmonic
R
L
= 100
80
75
73
70
dBc
max
B
R
L
500
88
85
83
80
dBc
max
B
Input Voltage Noise
f > 1MHz
4.8
5.3
5.9
6.1
nV/
Hz
max
B
Input Current Noise
f > 1MHz
2.5
2.8
3.0
3.6
pA/
Hz
max
B
Differential Gain
G = +2, NTSC, V
O
= 1.4Vp, R
L
= 150
0.05
%
typ
C
Differential Phase
G = +2, NTSC, V
O
= 1.4Vp, R
L
= 150
0.03
deg
typ
C
Channel-to-Channel Crosstalk
f = 5MHz
70
dBc
typ
C
DC PERFORMANCE
(4)
Open-Loop Voltage Gain (A
OL
)
V
O
= 0V, R
L
= 100
58
54
52
50
dB
min
A
Input Offset Voltage
V
CM
= 0V
1.0
4.5
5.2
6.0
mV
max
A
Average Offset Voltage Drift
V
CM
= 0V
10
10
V/
C
max
B
Input Bias Current
V
CM
= 0V
+8
+14
+19
+32
A
max
A
Average Bias Current Drift (magnitude)
V
CM
= 0V
70
150
nA/
C
max
B
Input Offset Current
V
CM
= 0V
0.1
0.7
1
1.2
A
max
A
Average Offset Current Drift
V
CM
= 0V
1
1.5
nA/
C
max
B
INPUT
Common-Mode Input Range (CMIR)
(5)
3.5
3.4
3.3
3.2
V
min
A
Common-Mode Rejection Ratio (CMRR)
V
CM
=
1V
59
56
53
52
dB
min
A
Input Impedance
Differential-Mode
V
CM
= 0
190
|| 0.6
k
|| pF
typ
C
Common-Mode
V
CM
= 0
3.2
|| 0.9
M
|| pF
typ
C
OUTPUT
Voltage Output Swing
No Load
4.0
3.8
3.7
3.6
V
min
A
100
Load
3.9
3.7
3.6
3.3
V
min
A
Current Output, Sourcing
V
O
= 0
+190
+160
+140
+80
mA
min
A
Current Output, Sinking
V
O
= 0
150
135
130
80
mA
min
A
Closed-Loop Output Impedance
G = +2, f = 100kHz
0.03
typ
C
DISABLE (SO-14 Only)
Disabled Low
Power Down Supply Current (+V
S
)
V
DIS
= 0, Both Channels
600
A
typ
C
Disable Time
100
ns
typ
C
Enable Time
25
ns
typ
C
Off Isolation
G = +2, 5MHz
70
dB
typ
C
Output Capacitance in Disable
4
pF
typ
C
Turn On Glitch
G = +2, R
L
= 150
, V
IN
= 0
50
mV
typ
C
Turn Off Glitch
G = +2, R
L
= 150
, V
IN
= 0
20
mV
typ
C
Enable Voltage
3.3
3.5
3.6
3.7
V
min
A
Disable Voltage
1.8
1.7
1.6
1.5
V
max
A
Control Pin Input Bias Current (V
DIS
)
V
DIS
= 0, Each Channel
100
160
160
160
A
max
A
POWER SUPPLY
Specified Operating Voltage
5
V
typ
C
Maximum Operating Voltage Range
6
6
6
V
max
A
Max Quiescent Current
V
S
=
5V
12.8
13.6
14.0
14.4
mA
max
A
Min Quiescent Current
V
S
=
5V
12.8
12.0
12.0
10.6
mA
min
A
Power Supply Rejection (+PSRR)
Input Referred
65
60
58
56
dB
min
A
THERMAL CHARACTERISTICS
Specified Operating Range U, N Package
40 to +85
C
typ
C
Thermal Resistance,
JA
Junction-to-Ambient
U
SO-8
125
C/W
typ
C
N
SO-14
100
C/W
typ
C
NOTES: (1) Test Levels: (A) 100% tested at 25
C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation.
(C) Typical value only for information. (2) Junction temperature = ambient for 25
C guaranteed specifications. (3) Junction temperature = ambient at low temperature
limit: junction temperature = ambient +23
C at high temperature limit for over temperature guaranteed specifications. (4) Current is considered positive-out-of node.
V
CM
is the input common-mode voltage. (5) Tested < 3dB below minimum CMRR specification at
CMIR limits.
OPA2680
3
SPECIFICATIONS: V
S
= +5V
R
F
= 402
, R
L
= 100
to V
S
/2, G = +2
,
(Figure 2 for AC performance only), unless otherwise noted.
OPA2680U, N
TYP
GUARANTEED
0
C to
40
C to
MIN/
TEST
PARAMETER
CONDITIONS
+25
C
+25
C
(2)
70
C
(3)
+85
C
(3)
UNITS
MAX
LEVEL
(1)
AC PERFORMANCE (Figure 2)
Small-Signal Bandwidth
G = +1, V
O
< 0.5Vp-p, R
F
=
25
300
MHz
typ
C
G = +2, V
O
< 0.5Vp-p
220
120
160
140
MHz
min
B
G = +10, V
O
< 0.5Vp-p
25
20
19
18
MHz
min
B
Gain-Bandwidth Product
G
10
250
200
190
180
MHz
min
B
Bandwidth for 0.1dB Gain Flatness
G = +2, V
O
< 0.5Vp-p
20
MHz
typ
C
Peaking at a Gain of +1
V
O
< 0.5Vp-p
5
dB
typ
C
Large Signal Bandwidth
G = +2, V
O
= 2Vp-p
200
MHz
typ
C
Slew Rate
G = +2, 2V Step
1000
700
670
550
V/
s
min
B
Rise/Fall Time
G = +2, V
O
= 0.5V Step
1.6
ns
typ
C
G = +2, V
O
= 2V Step
2.0
ns
typ
C
Settling Time to 0.02%
G = +2, V
O
= 2V Step
12
ns
typ
C
0.1%
G = +2, V
O
= 2V Step
8
ns
typ
C
Harmonic Distortion
G = +2, f = 5MHz, V
O
= 2Vp-p
2nd Harmonic
R
L
= 100
to V
S
/2
60
55
54
51
dBc
max
B
R
L
500
to V
S
/2
70
66
63
59
dBc
max
B
3rd Harmonic
R
L
= 100
to V
S
/2
72
66
64
62
dBc
max
B
R
L
500
to V
S
/2
80
76
74
71
dBc
max
B
Input Voltage Noise
f > 1MHz
5
5.3
6.0
6.2
nV/
Hz
max
B
Input Current Noise
f > 1MHz
2.5
2.8
3.0
3.4
pA/
Hz
max
B
Differential Gain
G = +2, NTSC, V
O
= 1.4Vp, R
L
= 150 to V
S
/2
0.06
%
typ
C
Differential Phase
G = +2, NTSC, V
O
= 1.4Vp, R
L
= 150 to V
S
/2
0.03
deg
typ
C
DC PERFORMANCE
(4)
Open-Loop Voltage Gain
V
O
= 2.5V, R
L
= 100
to 2.5V
58
54
52
50
dB
min
A
Input Offset Voltage
V
CM
= 2.5V
2.0
6.0
7
8.5
mV
max
A
Average Offset Voltage Drift
V
CM
= 2.5V
10
12
V/
C
max
B
Input Bias Current
V
CM
= 2.5V
+8
+15
+18
+32
A
max
A
Average Bias Current Drift (magnitude)
V
CM
= 2.5V
52
52
nA/
C
max
B
Input Offset Current
V
CM
= 2.5V
0.1
0.6
1.0
1.2
A
max
A
Average Offset Current Drift
V
CM
= 2.5V
0.5
1.0
nA/
C
max
B
INPUT
Least Positive Input Voltage
(5)
1.5
1.6
1.7
1.8
V
max
A
Most Positive Input Voltage
(5)
3.5
3.4
3.3
3.2
V
min
A
Common-Mode Rejection Ratio (CMRR)
V
CM
= 2.5V
0.5V
59
56
53
52
dB
min
A
Input Impedance
Differential-Mode
V
CM
= 2.5V
92 || 1.4
k
|| pF
typ
C
Common-Mode
V
CM
= 2.5V
2.2 || 1.5
M
|| pF
typ
C
OUTPUT
Most Positive Output Voltage
No Load
4
3.8
3.6
3.5
V
min
A
R
L
= 100
to 2.5V
3.9
3.7
3.5
3.4
V
min
A
Least Positive Output Voltage
No Load
1
1.2
1.4
1.5
V
max
A
R
L
= 100
to 2.5V
1.1
1.3
1.5
1.7
V
max
A
Current Output, Sourcing
+150
+110
+110
+60
mA
min
A
Current Output, Sinking
110
75
70
50
mA
min
A
Closed-Loop Output Impedance
G =+2, f = 100kHz
0.03
typ
C
DISABLE (SO-14 Only)
Disabled Low
Power Down Supply Current (+V
S
)
V
DIS
= 0, Both Channels
500
A
typ
C
Disable Time
100
ns
typ
C
Enable Time
25
ns
typ
C
Off Isolation
G = +2, 5MHz
65
dB
typ
C
Output Capacitance in Disable
4
pF
typ
C
Turn On Glitch
G = +2, R
L
= 150
, V
IN
= V
S
/2
50
mV
typ
C
Turn Off Glitch
G = +2, R
L
= 150
, V
IN
= V
S
/2
20
mV
typ
C
Enable Voltage
3.3
3.5
3.6
3.7
V
min
A
Disable Voltage
1.8
1.7
1.6
1.5
V
max
A
Control Pin Input Bias Current (V
DIS
)
V
DIS
= 0, Each Channel
100
A
typ
C
POWER SUPPLY
Specified Single Supply Operating Voltage
5
V
typ
C
Maximum Single Supply Operating Voltage
12
12
12
V
max
B
Max Quiescent Current
V
S
= +5V
10.2
12.0
12.0
12.0
mA
max
A
Min Quiescent Current
V
S
= +5V
10.2
8.0
8.0
7.6
mA
min
A
Power Supply Rejection (+PSRR)
Input Referred
55
dB
typ
C
TEMPERATURE RANGE
Specification: U, N
40 to +85
C
typ
C
Thermal Resistance,
JA
Junction-to-Ambient
U
SO-8
125
C/W
typ
C
N
SO-14
100
C/W
typ
C
NOTES: (1) Test Levels: (A) 100% tested at 25
C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation.
(C) Typical value only for information. (2) Junction temperature = ambient for 25
C guaranteed specifications. (3) Junction temperature = ambient at low temperature
limit: Junction temperature = ambient +23
C at high temperature limit for over temperature guaranteed specifications. (4) Current is considered positive-out-of node.
V
CM
is the input common-mode voltage. (5) Tested < 3dB below minimum CMRR specification at
CMIR limits.
4
OPA2680
PIN CONFIGURATIONS
Top View
SO-8
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.
ABSOLUTE MAXIMUM RATINGS
Power Supply ..............................................................................
6.5VDC
Internal Power Dissipation ..................................... See Thermal Analysis
Differential Input Voltage ..................................................................
1.2V
Input Voltage Range ............................................................................
V
S
Storage Temperature Range: U, N ................................ 40
C to +125
C
Lead Temperature (soldering, 10s) .............................................. +300
C
Junction Temperature (T
J
) ........................................................... +175
C
1
2
3
4
8
7
6
5
+V
S
Out B
In B
+In B
Out A
In A
+In A
V
S
A
B
SO-14
1
2
3
4
5
6
7
14
13
12
11
10
9
8
In A
+In A
DISA
V
S
DISB
+In B
In B
Out A
NC
NC
+V
S
NC
NC
Out B
PACKAGE
SPECIFIED
DRAWING
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
MARKING
NUMBER
(2)
MEDIA
OPA2680U
SO-8 Surface Mount
182
40
C to +85
C
OPA2680U
OPA2680U
Rails
"
"
"
"
"
OPA2680U/2K5
Tape and Reel
OPA2680N
SO-14 Surface mount
235
40
C to +85
C
OPA2680N
OPA2680N
Rails
"
"
"
"
"
OPA2680N/2K5
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of "OPA2680U/2K5" will get a single
2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
PACKAGE/ORDERING INFORMATION
ELECTROSTATIC
DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from perfor-
mance degradation to complete device failure. Burr-Brown Corpo-
ration 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 specifications.
OPA2680
5
TYPICAL PERFORMANCE CURVES: V
S
=
5V
At T
A
= +25
C, G = +2, R
F
= 402
, and R
L
= 100
, unless otherwise noted. See Figure 1.
6
3
0
3
6
9
12
15
18
21
24
SMALL-SIGNAL FREQUENCY RESPONSE
Frequency (MHz)
Normalized Gain (3dB/div)
0.5
10
100
500
G = +5
V
O
= 0.5Vp-p
G = +10
G = +2
G = +1
R
F
= 25
15
12
9
6
3
0
3
6
9
12
15
LARGE-SIGNAL FREQUENCY RESPONSE
Frequency (MHz)
0.5
10
100
500
V
O
= 7Vp-p
V
O
= 1Vp-p
V
O
= 2Vp-p
V
O
= 4Vp-p
Gain (3dB/div)
400
300
200
100
0
100
200
300
400
SMALL-SIGNAL PULSE RESPONSE
Time (5ns/div)
Output Voltage (100mV/div)
G = +2
V
O
= 0.5Vp-p
+4
+3
+2
+1
0
1
2
3
4
LARGE-SIGNAL PULSE RESPONSE
Time (5ns/div)
Output Voltage (1V/div)
G = +2
V
O
= 5Vp-p
CHANNEL-TO-CHANNEL CROSSTALK
0
10
20
30
40
50
60
70
80
90
100
Frequency (MHz)
1
10
100
Crosstalk (10dB/div)
2.0
1.6
1.2
0.8
0.4
0
5.0
4.0
2.0
0
LARGE-SIGNAL DISABLE/ENABLE RESPONSE
Time (50ns/div)
V
O
(0.4V/div)
V
DIS
(2V/div)
Output Voltage
V
DIS
G = +2
V
IN
= +1V
Each Channel
SO-14 Package
Only
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