Improved Second Source
to the EL2020
ADEL2020
FEATURES
CONNECTION DIAGRAMS
Ideal for Video Applications
0.02% Differential Gain
8-Lead PDIP (N)
20-Lead SOIC (R)
0.04ꢀ 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% (VO = 10 V Step)
Low Noise
2.9 nV/√Hz Input Voltage Noise
Low Power
6.8 mA Supply Current
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
NC
BAL
NC
–IN
NC
+IN
NC
V–
NC
BAL
–IN
+IN
V–
1
2
3
4
8
7
6
5
DISABLE
V+
DISABLE
NC
ADEL2020
TOP VIEW
OUTPUT
BAL
V+
ADEL2020
TOP VIEW
NC
OUTPUT
NC
BAL
NC
NC
2.1 mA Supply Current (Power-Down Mode)
High Performance Disable Function
Turn-Off Time of 100 ns
NC 10
NC
NC = NO CONNECT
Input to Output Isolation of 54 dB (Off State)
GENERAL DESCRIPTION
The ADEL2020 offers other significant improvements. The
most important is lower power supply current (33% less than the
competition) with higher output drive. Important specifications
like voltage noise and offset voltage are less than half of those
for the EL2020. The ADEL2020 also provides an improved
disable feature. The disable time (to high output impedance) is
100 ns with guaranteed break before make. The ADEL2020 is
offered for the industrial temperature range of –40°C to +85°C
and comes in both PDIP and SOIC packages.
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
offers 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 Ω).
+0.1
R
= 150ꢂ
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
L
GAIN = +2
0
ꢃ15V
ꢃ5V
R
R
= 750ꢂ
= 150ꢂ
F
L
–0.1
fC = 3.58MHz
100 IRE
MODULATED RAMP
+0.1
0
R
= 1kꢂ
L
ꢃ15V
ꢃ5V
GAIN
PHASE
–0.1
100k
1M
10M
FREQUENCY – Hz
100M
5
6
7
8
9
10
11
12
13
14
15
SUPPLY VOLTAGE – ꢃV
Figure 1. Fine-Scale Gain (Normalized) vs. Frequency
for Various Supply Voltages, RF = 750 Ω, Gain = +2
Figure 2. Differential Gain and Phase vs. Supply Voltage
REV. A
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