Document Outline
- Specifications
- Pinout
- Package drawings
- Ordering Guide
- Features
- Applications
- Product Description
- Absolute Maximum Ratings
- Circuit Description
- ESD ESD SUSCEPTIBILITY
- MAXIMUM POWER DISSIPATION
- GENERAL DESIGN CONSIDERATIONS
- POWER SUPPLY BYPASSING
- CAPACITIVE LOADS
- OFFSET NULLING
- OPERATION AS A VIDEO LINE DRIVER
- DISABLE MODE
- DIAGRAMS
- Offset Null Configuration
- Connection Diagram for AVCL = +1
- Connection Diagram for AVCL = 1
- Connection Diagram for AVCL = +2
- Connection Diagram for AVCL = +10
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Improved Second Source
to the EL2020
ADEL2020
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
CONNECTION DIAGRAMS
8-Pin Plastic Mini-DIP (N) 20-Pin Small Outline Package
1
8
4
5
3
6
2
7
ADEL2020
TOP VIEW
V+
OUTPUT
BAL
BAL
IN
+IN
V
DISABLE
V+
OUTPUT
BAL
BAL
IN
+IN
V
DISABLE
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC = NO CONNECT
1
20
4
17
3
18
5
16
8
13
7
14
6
15
9
12
10
11
2
19
ADEL2020
TOP VIEW
FEATURES
Ideal for Video Applications
0.02% Differential Gain
0.04
Differential Phase
0.1 dB Bandwidth to 25 MHz (G = +2)
High Speed
90 MHz Bandwidth (3 dB)
500 V/ s Slew Rate
60 ns Settling Time to 0.1% (V
O
= 10 V Step)
Low Noise
2.9 nV/
Hz Input Voltage Noise
Low Power
6.8 mA Supply Current
2.1 mA Supply Current (Power-Down Mode)
High Performance Disable Function
Turn-Off Time of 100 ns
Input to Output Isolation of 54 dB (Off State)
PRODUCT DESCRIPTION
The ADEL2020 is an improved second source to the EL2020.
This op amp improves on all the key dynamic specifications
while offering lower power and lower cost. The ADEL2020 of-
fers 50% more bandwidth and gain flatness of 0.1 dB to beyond
25 MHz. In addition, differential gain and phase are less than
0.05% and 0.05
while driving one back terminated cable (150
).
The ADEL2020 offers other significant improvements. The
most important of these is lower power supply current, 33% less
100k
1M
100M
10M
+0.1
0
0.1
0.1
0
+0.1
NORMALIZED GAIN dB
FREQUENCY Hz
R
L
= 150
R
L
= 1k
15V
5V
15V
5V
Fine-Scale Gain (Normalized) vs. Frequency for Various
Supply Voltages. R
F
= 750
, Gain = +2
than the competition while offering higher output drive. Impor-
tant specs like voltage noise and offset voltage are less than half
of those for the EL2020.
The ADEL2020 also features an improved disable feature. The
disable time (to high output impedance) is 100 ns with guaran-
teed break before make. Finally the ADEL2020 is offered in the
industrial temperature range of 40
C to +85
C in both plastic
DIP and SOIC package.
0.10
0
15
0.03
0.01
6
0.02
5
0.06
0.04
0.05
0.07
0.08
0.09
14
13
12
11
10
9
8
7
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
GAIN
PHASE
GAIN = +2
R
F
= 750
R
L
= 150
f
C
= 3.58MHz
100 IRE
MODULATED RAMP
SUPPLY VOLTAGE Volts
DIFFERENTIAL GAIN %
DIFFERENTIAL PHASE Degrees
Differential Gain and Phase vs. Supply Voltage
ADEL2020SPECIFICATIONS
ADEL2020A
Parameter
Conditions
Temperature
Min
Typ
Max
Units
INPUT OFFSET VOLTAGE
1.5
7.5
mV
T
MIN
T
MAX
2.0
10.0
mV
Offset Voltage Drift
7
V/
C
COMMON-MODE REJECTION
V
CM
=
10 V
V
OS
T
MIN
T
MAX
50
64
dB
Input Current
T
MIN
T
MAX
0.1
1.0
A/V
POWER SUPPLY REJECTION
V
S
=
4.5 V to
18 V
V
OS
T
MIN
T
MAX
65
72
dB
Input Current
T
MIN
T
MAX
0.05
0.5
A/V
INPUT BIAS CURRENT
Input
T
MIN
T
MAX
0.5
7.5
A
+Input
T
MIN
T
MAX
1
15
A
INPUT CHARACTERISTICS
+Input Resistance
1
10
M
Input Resistance
40
+Input Capacitance
2
pF
OPEN-LOOP TRANSRESISTANCE
V
O
=
10 V
R
L
= 400
T
MIN
T
MAX
1
3.5
M
OPEN-LOOP DC VOLTAGE GAIN
R
L
= 400
, V
OUT
=
10 V
T
MIN
T
MAX
80
100
dB
R
L
= 100
, V
OUT
=
2.5 V
T
MIN
T
MAX
76
88
dB
OUTPUT VOLTAGE SWING
R
L
= 400
T
MIN
T
MAX
12.0
13.0
V
Short-Circuit Current
150
mA
Output Current
T
MIN
T
MAX
30
60
mA
POWER SUPPLY
Operating Range
3.0
18
V
Quiescent Current
T
MIN
T
MAX
6.8
10.0
mA
Power-Down Current
T
MIN
T
MAX
2.1
3.0
mA
Disable Pin Current
Disable Pin = 0 V
T
MIN
T
MAX
290
400
A
Min Disable Pin Current to Disable
T
MIN
T
MAX
30
A
DYNAMIC PERFORMANCE
3 dB Bandwidth
G = +1; R
FB
= 820
90
MHz
G = +2; R
FB
= 750
70
MHz
G = +10; R
FB
= 680
30
MHz
0.1 dB Bandwidth
G = +2; R
FB
= 750
25
MHz
Full Power Bandwidth
V
O
= 20 V p-p,
R
L
= 400
8
MHz
Slew Rate
R
L
= 400
, G = +1
500
V/
s
Settling Time to 0.1%
10 V Step, G = 1
60
ns
Differential Gain
f = 3.58 MHz
0.02
%
Differential Phase
f = 3.58 MHz
0.04
Degree
INPUT VOLTAGE NOISE
f = 1 kHz
2.9
nV/
Hz
INPUT CURRENT NOISE
I
IN
, f = 1 kHz
13
pA/
Hz
+I
IN
, f = 1 kHz
1.5
pA
Hz
OUTPUT RESISTANCE
Open Loop (5 MHz)
15
Specifications subject to change without notice.
REV. A
2
(@ T
A
= +25 C and V
S
= 15 V dc, R
L
= 150
unless otherwise noted)
ADEL2020
REV. A
3
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the
ADEL2020 is limited by the associated rise in junction tem-
perature. For the plastic packages, the maximum safe junction
temperature is 145
C. If the maximum is exceeded momen-
tarily, proper circuit operation will be restored as soon as the
die temperature is reduced. Leaving the device in the "over-
heated" condition for an extended period can result in device
burnout. To ensure proper operation, it is important to observe
the derating curves below.
While the ADEL2020 is internally short circuit protected, this
may not be sufficient to guarantee that the maximum junction
temperature is not exceeded under all conditions.
2.4
0.4
100
1.0
0.6
20
0.8
40
1.6
1.2
1.4
1.8
2.0
2.2
80
60
40
20
0
AMBIENT TEMPERATURE
C
TOTAL POWER DISSIPATION Watts
8-PIN
MINI-DIP
20-PIN SOIC
Maximum Power Dissipation vs. Temperature
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 V
Internal Power Dissipation
2
. . . . . . . Observe Derating Curves
Output Short Circuit Duration . . . . Observe Derating Curves
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . .
V
S
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .
6 V
Storage Temperature Range
Plastic DIP and SOIC . . . . . . . . . . . . . . . 65
C to +125
C
Operating Temperature Range . . . . . . . . . . 40
C to +85
C
Lead Temperature Range (Soldering 60 sec) . . . . . . +300
C
NOTES
1
Stresses above those listed under "Absolute Maximum Ratings" may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
8-Pin Plastic Package:
JA
= 90
C/Watt
20-Pin SOIC Package:
JA
= 150
C/Watt
ESD SUSCEPTIBILITY
ESD (electrostatic discharge) sensitive device. Electrostatic
charges as high as 4000 volts, which readily accumulate on the
human body and on test equipment, can discharge without
detection. Although the ADEL2020 features ESD protection
circuitry, permanent damage may still occur on these devices if
they are subjected to high energy electrostatic discharges.
Therefore, proper ESD precautions are recommended to avoid
any performance degradation or loss of functionality.
1
5
7
3
2
3
0.1F
+V
S
4
6
ADEL2020
0.1F
V
S
10k
Offset Null Configuration
ORDERING GUIDE
Temperature
Package
Package
Model
Range
Description
Option
ADEL2020AN
40
C to +85
C
8-Pin Plastic DIP
N-8
ADEL2020AR-20
40
C to +85
C
20-Pin Plastic SOIC
R-20
ADEL2020AR-20-REEL
40
C to +85
C
20-Pin Plastic SOIC
R-20
ADEL2020
REV. A
4
7
3
2
3
0.1F
+V
S
6
ADEL2020
V
S
1k
4
0.1F
R
L
R
T
V
IN
V
O
Figure 1. Connection Diagram for A
VCL
= +1
FREQUENCY MHz
0
5
10
100
1
2
3
4
1
1
1000
0
45
90
135
180
225
270
GAIN = +1
R
L
= 150
V
S
= 15V
5V
V
S
= 15V
5V
PHASE
GAIN
CLOSED-LOOP GAIN dB
PHASE SHIFT Degrees
Figure 2. Closed-Loop Gain and Phase vs. Frequency,
G = + 1, R
L
= 150
, R
F
= 1 k
for
15 V, 910
for
5 V
110
40
20
2
30
70
50
60
80
90
100
18
16
14
12
10
8
6
4
3dB BANDWIDTH MHz
SUPPLY VOLTAGE Volts
G = +1
R
L
= 150
V
O
= 250mV p-p
PEAKING 1dB
R
F
= 750
PEAKING 0.1dB
R
F
= 1k
R
F
= 1.5k
Figure 4. 3 dB Bandwidth vs. Supply Voltage,
Gain = +1, R
L
= 150
0
5
1
2
3
4
1
CLOSED-LOOP GAIN dB
0
45
90
135
180
225
270
PHASE SHIFT Degrees
GAIN = +1
R
L
= 1k
PHASE
GAIN
V
S
= 15V
5V
V
S
= 15V
5V
FREQUENCY MHz
10
100
1
1000
Figure 3. Closed-Loop Gain and Phase vs. Frequency,
G = +1, R
L
= 1 k
, R
F
= 1 k
for
15 V, 910
for
5 V
ADEL2020
REV. A
5
7
3
2
3
0.1F
+V
S
6
ADEL2020
V
S
681
4
0.1F
R
L
V
IN
V
O
681
Figure 5. Connection Diagram for A
VCL
= 1
GAIN = 1
R
L
= 150
180
135
90
45
0
PHASE SHIFT Degrees
0
5
1
2
3
4
1
CLOSED-LOOP GAIN dB
FREQUENCY MHz
10
100
1
1000
V
S
= 15V
5V
V
S
= 15V
5V
PHASE
GAIN
45
Figure 6. Closed-Loop Gain and Phase vs. Frequency,
G = 1, R
L
= 150
, R
F
= 680
for
15 V, 620
for
5 V
GAIN = 1
R
L
= 1k
PHASE SHIFT Degrees
0
5
1
2
3
4
1
CLOSED-LOOP GAIN dB
PHASE
GAIN
V
S
= 15V
5V
V
S
= 15V
5V
FREQUENCY MHz
10
100
1
1000
180
135
90
45
0
45
Figure 7. Closed-Loop Gain and Phase vs. Frequency,
G = 1, R
L
= 1 k
, R
F
= 680
for V
S
=
15 V, 620
for
5 V
40
20
2
30
70
50
60
80
90
100
18
16
14
12
10
8
6
4
3dB BANDWIDTH MHz
SUPPLY VOLTAGE Volts
G = 1
R
L
= 150
V
O
= 250mV p-p
PEAKING 1.0dB
R
F
= 499
PEAKING 0.1dB
R
F
= 1k
R
F
= 681
Figure 8. 3 dB Bandwidth vs. Supply Voltage,
Gain = 1, R
L
= 150
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