ADEL2020_15 Datasheet, PDF (1/12 Pages) Analog Devices – Improved Second Source to the EL2020

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)
GENERAL 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
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
0
–0.1
R_L = 150⍀
؎15V
؎5V
+0.1
0
–0.1
R_L = 1k⍀
؎15V
؎5V
100k
1M
10M
FREQUENCY – Hz
100M
Figure 1. Fine-Scale Gain (Normalized) vs. Frequency
for Various Supply Voltages, R_F = 750 Ω, Gain = +2
Improved Second Source
to the EL2020
ADEL2020
CONNECTION DIAGRAMS
8-Lead PDIP (N)
20-Lead SOIC (R)
BAL 1
8 DISABLE
–IN 2
7 V+
+IN 3
6 OUTPUT
V– 4 _ADEL2020 5 BAL
TOP VIEW
NC 1
20 NC
BAL 2 _ADEL2020 19 DISABLE
NC 3 ^{TOP VIEW} 18 NC
–IN 4
17 V+
NC 5
16 NC
+IN 6
15 OUTPUT
NC 7
14 NC
V– 8
13 BAL
NC 9
12 NC
NC 10
11 NC
NC = NO CONNECT
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.
0.10
0.20
GAIN = +2
0.09 ^RF ^{= 750⍀}
0.18
R_L = 150⍀
0.08 f_C = 3.58MHz
0.16
100 IRE
0.07 MODULATED RAMP
0.14
0.06
0.12
0.05
0.10
0.04
0.08
GAIN
PHASE
0.03
0.06
0.02
0.04
0.01
0.02
0
0
5 6 7 8 9 10 11 12 13 14 15
SUPPLY VOLTAGE – ؎V
Figure 2. Differential Gain and Phase vs. Supply Voltage
REV. A
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