Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a "controlled document". Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
2001 Elantec Semiconductor, Inc.
E
L
2
0
7
5
C
General Description
The EL2075C is a precision voltage-feedback amplifier featuring a
2GHz gain-bandwidth product, fast settling time, excellent differential
gain and differential phase performance, and a minimum of 50mA out-
put current drive over temperature.
The EL2075C is gain-of-10 stable with a -3dB bandwidth of 400MHz
at A
V
= +10. It has a very low 200V of input offset voltage, only 2A
of input bias current, and a fully symmetrical differential input. Like
all voltage-feedback operational amplifiers, the EL2075C allows the
use of reactive or non-linear components in the feedback loop. This
combination of speed and versatility makes the EL2075C the ideal
choice for all op-amp applications at a gain of 10 or greater requiring
high speed and precision, including active filters, integrators, sample-
and-holds, and log amps. The low distortion, high output current, and
fast settling makes the EL2075C an ideal amplifier for signal-process-
ing and digitizing systems.
Connection Diagrams
DIP and SO Package
Features
2GHz gain-bandwidth product
Gain-of-10 stable
Conventional voltage-feedback
topology
Low offset voltage = 200V
Low bias current = 2A
Low offset current = 0.1A
Output current = 50mA over
temperature
Fast settling = 13ns to 0.1%
Applications
Active filters/integrators
High-speed signal processing
ADC/DAC buffers
Pulse/RF amplifiers
Pin diode receivers
Log amplifiers
Photo multiplier amplifiers
High speed sample-and-holds
Ordering Information
Part No.
Temp. Range
Package
Outline #
EL2075CN
0C to +75C
8-Pin P-DIP
MDP0031
EL2075CS
0C to +75C
8-Lead SO
MDP0027
EL2075C
2GHz GBWP Gain-of-10 Stable Operational Amplifier
S
e
p
t
e
m
b
e
r
2
6
,
2
0
0
1
2
EL2075C
2GHz GBWP Gain-of-10 Stable Operational Amplifier
E
L
2
0
7
5
C
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage (V
S
)
7V
Output Current Output is short-circuit protected to ground, however,
maximum reliability is obtained if I
OUT
does not exceed 70mA.
Common-Mode Input
V
S
Differential Input Voltage
5V
Thermal Resistance
JA
= 95C/W P-DIP
JA
= 175C/W SO-8
Operating Temperature
0C to +75C
Junction Temperature
175C
Storage Temperature
-60C to +150C
Note: See EL2071/EL2171 for Thermal Impedance curves.
Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the
specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
.
Open Loop DC Electrical Characteristics
V
S
= 5V, R
L
= 100
, unless otherwise specified
Parameter
Description
Test Conditions
Temp
Min
Typ
Max
Unit
V
OS
Input Offset Voltage
V
CM
= 0V
25C
0.2
1
mV
T
MIN
, T
MAX
2.5
mV
TCV
OS
Average Offset Voltage Drift
[1]
All
8
V/C
I
B
Input Bias Current
V
CM
= 0V
All
2
6
A
I
OS
Input Offset Current
V
CM
= 0V
25C
0.1
1
A
T
MIN
, T
MAX
2
A
PSRR
Power Supply Rejection Ratio
[2]
All
70
90
dB
CMRR
Common Mode Rejection Ratio
[3]
All
70
90
dB
I
S
Supply Current--Quiescent
No Load
25C
21
25
mA
T
MIN
, T
MAX
25
mA
R
IN
(diff)
R
IN
(Differential)
Open-Loop
25C
15
k
C
IN
(diff)
C
IN
(Differential)
Open-Loop
25C
1
pF
R
IN
(cm)
R
IN
(Common-Mode)
25C
1
M
C
IN
(cm)
C
IN
(Common-Mode)
25C
1
pF
R
OUT
Output Resistance
25C
50
m
CMIR
Common-Mode Input
Range
25C
3
3.5
V
T
MIN
, T
MAX
2.5
V
I
OUT
Output Current
All
50
70
mA
V
OUT
Output Voltage Swing
No Load
All
3.5
4
V
V
OUT
100
Output Voltage Swing
100
All
3
3.6
V
V
OUT
50
Output Voltage Swing
50
All
2.5
3.4
V
A
VOL
100
Open-Loop Gain
100
25C
1000
2800
V/V
T
MIN
, T
MAX
800
V/V
A
VOL
50
Open-Loop Gain
50
25C
800
2300
V/V
T
MIN
, T
MAX
600
V/V
eN@ > 1MHz
Noise Voltage 1100MHz
25C
2.3
nV/
Hz
iN@ > 100 kHz
Noise Current 100k100MHz
25C
3.2
pA/
Hz
1. Measured from T
MIN
, T
MAX
.
2. V
CC
= 4.5V to 5.5V.
3. V
IN
= 2.5V, V
OUT
= 0V
3
EL2075C
2GHz GBWP Gain-of-10 Stable Operational Amplifier
E
L
2
0
7
5
C
Closed Loop AC Electrical Characteristics
V
S
= 5V, A
V
= +20, Rf = 1500
, R
L
= 100
unless otherwise specified.
Parameter
Description
Test Conditions
Temp
Min
Typ
Max
Unit
SSBW
-3dB Bandwidth
(V
OUT
= 0.4V
PP
)
A
V
= +10
25C
400
MHz
A
V
= +20
25C
150
200
MHz
T
MIN
, T
MAX
125
MHz
A
V
= +50
25C
40
MHz
GBWP
Gain-Bandwidth Product
A
V
= +100
25C
2.0
GHz
LSBWa
-3dB Bandwidth
V
OUT
= 2V
PP
[1]
All
80
128
MHz
LSBWb
-3dB Bandwidth
V
OUT
= 5V
PP
[1]
All
32
50
MHz
GFPL
Peaking (<50MHz)
V
OUT
= 0.4V
PP
25C
0
0.5
dB
T
MIN
, T
MAX
0.5
dB
GFPH
Peaking (>50MHz)
V
OUT
= 0.4V
PP
25C
0
1
dB
T
MIN
, T
MAX
1
dB
GFR
Rolloff (<100MHz)
V
OUT
= 0.4V
PP
25C
0.1
0.5
dB
T
MIN
, T
MAX
0.5
dB
LPD
Linear Phase Deviation (<100MHz)
V
OUT
= 0.4V
PP
All
1
1.8
PM
Phase Margin
A
V
= +10
25C
60
tr1, tf1
Rise Time, Fall Time
0.4V Step, A
V
= +10
25C
1.2
ns
tr2, tf2
Rise Time, Fall Time
5V Step, A
V
= +10
25C
6
ns
ts1
Settling to 0.1% (A
V
= -20)
2V Step
25C
13
ns
ts2
Settling to 0.01% (A
V
= -20)
2V Step
25C
25
ns
OS
Overshoot
2V Step, A
V
= +10
25C
10
%
SR
Slew Rate
2V Step, A
V
= +10
All
500
800
V/s
DISTORTION
[2]
HD2
2nd Harmonic Distortion
@ 20MHz, A
V
= +20
25C
-40
-30
dBc
T
MIN
, T
MAX
-30
dBc
HD3
3rd Harmonic Distortion
@ 20MHz, A
V
= +20
25C
-65
-50
dBc
T
MIN
, T
MAX
-50
dBc
1. Large-signal bandwidth calculated using LSBW = Slew Rate / (2 V
PEAK
).
2. All distortion measurements are made with V
OUT
= 2V
PP
, R
L
= 100.
4
EL2075C
2GHz GBWP Gain-of-10 Stable Operational Amplifier
E
L
2
0
7
5
C
Typical Performance Curves
Non-Inverting
Frequency Response
Inverting Frequency Response
Frequency Response
for Various R
L
s
Equivalent Input Noise
Output Voltage Swing
vs Frequency
Open Loop Gain
and Phase
PSRR, CMRR, and Closed-Loop
R
O
Frequency
2nd and 3rd Harmonic
Distortion vs Frequency
2-Tone, 3rd Order
Intermodulation Intercept
5
EL2075C
2GHz GBWP Gain-of-10 Stable Operational Amplifier
E
L
2
0
7
5
C
Series Resistor and Resulting
Bandwidth vs Capacitive Load
Settling Time vs
Output Voltage Change
Settling Time vs
Closed-Loop Gain
Supply Current
vs Temperature
Bias and Offset Current vs
Input Common-Mode Voltage
Common-Mode Rejection Ratio vs
Input Common-Mode Voltage
Bias and Offset Current
vs Temperature
Offset Voltage
vs Temperature
A
VOL
, PSRR, and CMRR
vs Temperature
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