EL2044C
EL2044C
Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier
Features
• 120MHz -3dB bandwidth
• Unity-gain stable
• Low supply current
= 5.2mA at V
S
= ±15V
• Wide supply range
= ±2V to ±18V dual-supply
= 2.5V to 36V single-supply
• High slew rate = 325V/µs
• Fast settling = 80ns to 0.1% for a
10V step
• Low differential gain = 0.04% at
A
V
= +2, R
L
= 150Ω
• Low differential phase = 0.15° at
A
V
= +2, R
L
= 150Ω
• Stable with unlimited capacitive
load
• Wide output voltage swing
= ±13.6V with V
S
= ±15V,
R
L
= 1000Ω
= 3.8V/0.3V with V
S
= +5V,
R
L
= 500Ω
• Low cost, enhanced replacement
for the AD847 and LM6361
General Description
The EL2044C is a high speed, low power, low cost monolithic opera-
tional amplifier built on Elantec's proprietary complementary bipolar
process. The EL2044C is unity-gain stable and features a 325V/µs
slew rate and 120MHz gain-bandwidth product while requiring only
5.2 mA of supply current.
The power supply operating range of the EL2044C is from ±18V
down to as little as ±2V. For single-supply operation, the EL2044C
operates from 36V down to as little as 2.5V. The excellent power sup-
ply operating range of the EL2044C makes it an obvious choice for
applications on a single +5V supply.
The EL2044C also features an extremely wide output voltage swing of
±13.6V with V
S
= ±15V and R
L
= 1000Ω. At ±5V, output voltage
swing is a wide ±3.8V with R
L
= 500Ω and ±3.2V with R
L
= 150Ω.
Furthermore, for single-supply operation at +5V, output voltage swing
is an excellent 0.3V to 3.8V with R
L
= 500Ω.
At a gain of +1, the EL2044C has a -3dB bandwidth of 120MHz with
a phase margin of 50°. It can drive unlimited load capacitance, and
because of its conventional voltage-feedback topology, the EL2044C
allows the use of reactive or non-linear elements in its feedback net-
work. This versatility combined with low cost and 75mA of output-
current drive makes the EL2044C an ideal choice for price-sensitive
applications requiring low power and high speed.
Applications
•
•
•
•
•
•
•
•
•
•
•
Video amplifier
Single-supply amplifier
Active filters/integrators
High-speed sample-and-hold
High-speed signal processing
ADC/DAC buffer
Pulse/RF amplifier
Pin diode receiver
Log amplifier
Photo multiplier amplifier
Difference amplifier
Connection Diagram
DIP and SO Package
September 26, 2001
Ordering Information
Part No.
EL2044CN
EL2044CS
Temp. Range
-40°C to +85°C
-40°C to +85°C
Package
8-Pin P-DIP
8-Lead SO
Outline #
MDP0031
MDP0027
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.
EL2044C
EL2044C
Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier
Absolute Maximum Ratings
(T
Supply Voltage (V
S
)
Peak Output Current (I
OP
)
Output Short-Circuit Duration
(A heat-sink is required to keep junction temperature
below absolute maximum when an output is shorted.)
A
= 25°C)
±18V or 36V
Short-Circuit Protected
Infinite
Input Voltage (V
IN)
Differential Input Voltage (dV
IN
)
±V
S
±10V
Power Dissipation (P
D
)
Operating Temperature
Range (T
A
)
Operating Junction
Temperature (T
J
)
Storage Temperature (T
ST
)
See Curves
-40°C to +85°C
150°C
-65°C to +150°C
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
.
DC Electrical Characteristics
V
S
= ±15V, R
L
= 1000Ω, unless otherwise specified
Parameter
V
OS
TCV
OS
I
B
Description
Input Offset
Voltage
Average Offset
Voltage Drift
Input Bias
Current
Input Offset
Current
Average Offset
Current Drift
Open-Loop Gain
V
S
= ±15V
V
S
= ±5V
I
OS
V
S
= ±15V
V
S
= ±5V
TCI
OS
A
VOL
[1]
Condition
V
S
= ±15V
(Note 2)
Temp
25°C
T
MIN
, T
MAX
All
25°C
T
MIN
, T
MAX
25°C
25°C
T
MIN
, T
MAX
25°C
All
25°C
T
MIN
, T
MAX
25°C
25°C
25°C
T
MIN
, T
MAX
25°C
T
MIN
, T
MAX
25°C
25°C
25°C
25°C
T
MIN
, T
MAX
25°C
25°C
25°C
25°C
T
MIN
, T
MAX
25°C
T
MIN
, T
MAX
Min
Typ
0.5
10.0
2.8
2.8
50
50
0.3
Max
7.0
13.0
Unit
mV
mV
µV/°C
8.2
11.2
300
500
µA
µA
µA
nA
nA
nA
nA/°C
V/V
V/V
V/V
V/V
dB
dB
dB
dB
V
V
V
V
V
V
V
V
V
V
mA
mA
V
S
= ±15V,V
OUT
= ±10V, R
L
= 1000Ω
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 500Ω
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 150Ω
800
600
1500
1200
1000
PSRR
CMRR
CMIR
Power Supply
Rejection Ratio
Common-Mode
Rejection Ratio
Common-Mode
Input Range
Output Voltage
Swing
V
S
= ±5V to ±15V
V
CM
= ±12V, V
OUT
= 0V
V
S
= ±15V
V
S
= ±5V
V
S
= +5V
V
S
= ±15V, R
L
= 1000Ω
V
S
= ±15V, R
L
= 500Ω
V
S
= ±5V, R
L
= 500Ω
V
S
= ±5V, R
L
= 150Ω
V
S
= +5V, R
L
= 500Ω
65
60
70
70
80
90
±14.0
±4.2
4.2/0.1
V
OUT
±13.4
±13.1
±12.0
±3.4
3.6/0.4
3.5/0.5
40
35
±13.6
±13.4
±3.8
±3.2
3.8/0.3
75
I
SC
Output Short
Circuit Current
2
EL2044C
EL2044C
Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier
Closed-Loop AC Electrical Characteristics
V
S
= ±15V, A
V
= +1, R
L
= 1000¾ unless otherwise specified
Parameter
BW
Description
-3 dB Bandwidth
(V
OUT
= 0.4 V
PP
)
Condition
V
S
= ±15V, A
V
= +1
V
S
= ±15V, A
V
= -1
V
S
= ±15V, A
V
= +2
V
S
= ±15V, A
V
= +5
V
S
= ±15V, A
V
= +10
V
S
= ±5V, A
V
= +1
GBWP
PM
SR
FPBW
t
r
, t
f
OS
t
PD
t
s
dG
dP
eN
iN
CI STAB
Gain-Bandwidth Product
Phase Margin
Slew Rate
[1]
Temp
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
Min
Typ
120
60
60
12
6
80
60
45
50
Max
Unit
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
°
V/µs
V/µs
MHz
MHz
ns
%
ns
ns
ns
%
°
nV/√Hz
pA/√Hz
pF
V
S
= ±15V
V
S
= ±5V
R
L
= 1 kΩ, C
L
= 10 pF
V
S
= ±15V, R
L
= 1000Ω
V
S
= ±5V, R
L
= 500Ω
V
S
= ±15V
V
S
= ±5V
0.1V Step
0.1V Step
V
S
= ±15V, 10V Step
V
S
= ±5V, 5V Step
NTSC/PAL
NTSC/PAL
10kHz
10kHz
A
V
= +1
250
4.0
325
200
5.2
12.7
3.0
20
2.5
80
60
0.04
0.15
15.0
1.50
Infinite
Full-Power Bandwidth
[2]
Rise Time, Fall Time
Overshoot
Propagation Delay
Settling to +0.1%
(A
V
= +1)
Differential
Gain
[3]
Differential Phase (Note 5)
Input Noise Voltage
Input Noise Current
Load Capacitance Stability
1. Slew rate is measured on rising edge.
2. For V
S
= ±15V, V
OUT
= 20V
PP
. For V
S
= ±5V, V
OUT
= 5V
PP
. Full-power bandwidth is based on slew rate measurement using: FPBW = SR/(2π *
Vpeak).
3. Video Performance measured at V
S
= ±15V, A
V
= +2 with 2 times normal video level across R
L
= 150Ω. This corresponds to standard video levels
across a back-terminated 75Ω load. For other values of R
L
, see curves.
4
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