1
®
FN7030.1
EL2045
Low-Power 100MHz Gain-of-2 Stable
Operational Amplifier
The EL2045 is a high speed, low power, low cost monolithic
operational amplifier built on Elantec's proprietary
complementary bipolar process. The EL2045 is gain-of-2
stable and features a 275V/µs slew rate and 100MHz gain-
bandwidth at gain-of-2 while requiring only 5.2mA of supply
current.
The power supply operating range of the EL2045 is from
±18V down to as little as ±2V. For single-supply operation,
the EL2045 operates from 36V down to as little as 2.5V. The
excellent power supply operating range of the EL2045
makes it an obvious choice for applications on a single +5V
or +3V supply.
The EL2045 also features an extremely wide output voltage
swing of ±13.6V with V
S
= ±15V and R
L
= 1k
. At ±5V,
output voltage swing is a wide ±3.8V with R
L
= 500
and
±3.2V with R
L
= 150
. Furthermore, for single-supply
operation at +5V, output voltage swing is an excellent 0.3V to
3.8V with R
L
= 500
.
At a gain of +2, the EL2045 has a -3dB bandwidth of
100MHz with a phase margin of 50°. Because of its
conventional voltage-feedback topology, the EL2045 allows
the use of reactive or non-linear elements in its feedback
network. This versatility combined with low cost and 75mA of
output-current drive makes the EL2045 an ideal choice for
price-sensitive applications requiring low power and high
speed.
Features
· 100MHz gain-bandwidth at gain-of-2
· Gain-of-2 stable
· Low supply current - 5.2mA at V
S
= ±15V
· Wide supply range - ±2V to ±18V dual-supply and 2.5V to
36V single-supply
· High slew rate - 275V/µs
· Fast-settling - 80ns to 0.1% for a 10V step
· Low differential gain - 0.02% at A
V
= +2, R
L
= 150
· Low differential phase - 0.07° at A
V
= +2, R
L
= 150
· Wide output voltage swing - ±13.6V with V
S
= ±15V,
R
L
= 1k
and 3.8V/0.3V with V
S
= +5V, R
L
= 500
·
Pb-Free available (RoHS compliant)
Applications
· Video amplifiers
· Single-supply amplifiers
· Active filters/integrators
· High speed sample-and-hold
· High speed signal processing
· ADC/DAC buffers
· Pulse/RF amplifiers
· Pin diode receivers
· Log amplifiers
· Photo multiplier amplifiers
· Difference amplifiers
Ordering Information
PART NUMBER
PACKAGE
TAPE & REEL PKG. DWG. #
EL2045CS
8-Pin SO
-
MDP0027
EL2045CS-T7
8-Pin SO
7"
MDP0027
EL2045CS-T13
8-Pin SO
13"
MDP0027
EL2045CSZ
(See Note)
8-Pin SO
(Pb-free)
-
MDP0027
EL2045CSZ-T7
(See Note)
8-Pin SO
(Pb-free)
7"
MDP0027
EL2045CSZ-T13
(See Note)
8-Pin SO
(Pb-free)
13"
MDP0027
EL2045CN
8-Pin PDIP
-
MDP0031
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with
both SnPb and Pb-free soldering operations. Intersil Pb-free products
are MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Pinout
1
2
3
4
8
7
6
5
EL2045
(8-PIN SO & 8-PIN PDIP)
TOP VIEW
-
+
NC
IN-
IN+
V-
NC
V+
OUT
NC
Data Sheet
February 11, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN7030.1
February 11, 2005
Absolute Maximum Ratings
(T
A
= 25°C)
Supply Voltage (V
S
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V or 36V
Input Voltage (V
IN)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±V
S
Differential Input Voltage (dV
IN
) . . . . . . . . . . . . . . . . . . . . . . . . .±10V
Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Power Dissipation (P
D
) . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Temperature Range (T
A
) . . . . . . . . . . . . . . -40°C to +85°C
Operating Junction Temperature (T
J
) . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature (T
ST
) . . . . . . . . . . . . . . . . . . . -65°C to +150°C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical 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 Specifications
V
S
= ±15V, R
L
= 1k
,
unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNIT
V
OS
Input Offset Voltage
V
S
= ±15V
25°C
0.5
7.0
mV
T
MIN
, T
MAX
9.0
mV
TCV
OS
Average Offset Voltage Drift
All
10.0
µV/°C
I
B
Input Bias Current
V
S
= ±15V
25°C
2.8
8.2
µA
T
MIN
, T
MAX
9.2
µA
V
S
= ±5V
25°C
2.8
µA
I
OS
Input Offset Current
V
S
= ±15V
25°C
50
300
nA
T
MIN
, T
MAX
400
nA
V
S
= ±5V
25°C
50
nA
TCI
OS
Average Offset Current Drift
(Note 1)
All
0.3
nA/°C
A
VOL
Open-loop Gain
V
S
= ±15V,V
OUT
= ±10V, R
L
= 1k
25°C
1500
3000
V/V
T
MIN
, T
MAX
1500
V/V
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 500
25°C
2500
V/V
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 150
25°C
1750
V/V
PSRR
Power Supply Rejection Ratio
V
S
= ±5V to ±15V
25°C
65
85
dB
T
MIN
, T
MAX
60
dB
CMRR
Common-mode Rejection Ratio
V
CM
= ±12V, V
OUT
= 0V
25°C
70
95
dB
T
MIN
, T
MAX
70
dB
CMIR
Common-mode Input Range
V
S
= ±15V
25°C
±14.0
V
V
S
= ±5V
25°C
±4.2
V
V
S
= +5V
25°C
4.2/0.1
V
V
OUT
Output Voltage Swing
V
S
= ±15V, R
L
= 1k
25°C
±13.4
±13.6
V
T
MIN
, T
MAX
±13.1
V
V
S
= ±15V, R
L
= 500
25°C
±12.0
±13.4
V
V
S
= ±5V, R
L
= 500
25°C
±3.4
±3.8
V
V
S
= ±5V, R
L
= 150
25°C
±3.2
V
V
S
= +5V, R
L
= 500
25°C
3.6/0.4
3.8/0.3
V
T
MIN
, T
MAX
3.5/0.5
V
I
SC
Output Short Circuit Current
25°C
40
75
mA
T
MIN
, T
MAX
35
mA
EL2045
3
FN7030.1
February 11, 2005
NOTES:
1. Slew rate is measured on rising edge.
2. For V
S
= ±15V, V
OUT
= 20V
PP
. For V
S
= ±5V, V
OUT
= 5 V
PP
. Full-power bandwidth is based on slew rate measurement using: FPBW = SR / (2
* Vpeak).
3. Video performance measured at V
S
= ±15V, A
V
= +2 with 2 times normal video level across R
L
= 150
. This corresponds to standard video levels across a back-
terminated 75
load. For other values of R
L
, see curves.
I
S
Supply Current
V
S
= ±15V, no load
25°C
5.2
7
mA
T
MIN
, T
MAX
7.6
mA
V
S
= ±5V, no load
25°C
5.0
mA
R
IN
Input Resistance
Differential
25°C
150
k
Common-mode
25°C
15
M
C
IN
Input Capacitance
A
V
= +2 @10MHz
25°C
1.0
pF
R
OUT
Output Resistance
A
V
= +2
25°C
50
m
PSOR
Power-Supply Operating Range
Dual-supply
25°C
±2.0
±18.0
V
Single-supply
25°C
2.5
36.0
V
NOTE:
1. Measured from T
MIN
To T
MAX
.
DC Electrical Specifications
V
S
= ±15V, R
L
= 1k
,
unless otherwise specified. (Continued)
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNIT
Closed-Loop AC Electrical Specifications
V
S
= ±15V, A
V
= +2, R
F
= R
G
= 1k
, C
F
= 3pF, R
L
= 1k
unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNIT
BW
-3dB Bandwidth (V
OUT
= 0.4V
PP
)
V
S
= ±15V, A
V
= +2
25°C
100
MHz
V
S
= ±15V, A
V
= -1
25°C
75
MHz
V
S
= ±15V, A
V
= +5
25°C
20
MHz
V
S
= ±15V, A
V
= +10
25°C
10
MHz
V
S
= ±15V, A
V
= +20
25°C
5
MHz
V
S
= ±5V, A
V
= +2
25°C
75
MHz
GBWP
Gain-bandwidth Product
V
S
= ±15V
25°C
200
MHz
V
S
= ±5V
25°C
150
MHz
PM
Phase Margin
R
L
= 1k
, C
L
= 10pF
25°C
50
°
SR
Slew Rate (Note 1)
V
S
= ±15V, R
L
= 1k
25°C
200
275
V/µs
V
S
= ±5V, R
L
= 500
25°C
200
V/µs
FPBW
Full-power Bandwidth (Note 2)
V
S
= ±15V
25°C
3.2
4.4
MHz
V
S
= ±5V
25°C
12.7
MHz
t
R
, t
F
Rise Time, Fall Time
0.1V output step
25°C
3.0
ns
OS
Overshoot
0.1V output step
25°C
20
%
t
PD
Propagation Delay
25°C
2.5
ns
t
S
Settling to +0.1% (A
V
= +2)
V
S
= ±15V, 10V step
25°C
80
ns
V
S
= ±5V, 5V step
25°C
60
ns
dG
Differential Gain (Note 3)
NTSC/PAL
25°C
0.02
%
dP
Differential Phase (Note 3)
NTSC/PAL
25°C
0.07
°
eN
Input Noise Voltage
10kHz
25°C
15.0
nV/
Hz
iN
Input Noise Current
10kHz
25°C
1.50
pA/
Hz
CI STAB
Load Capacitance Stability
A
V
= +2
25°C
Infinite
pF
EL2045
4
FN7030.1
February 11, 2005
EL2045 Test Circuit
Typical Performance Curves
Non-Inverting
Frequency Response
Inverting Frequency
Response
Frequency Response for
Various Load Resistances
Open-Loop Gain and
Phase vs Frequency
Output Voltage Swing
vs Frequency
Equivalent Input Noise
Settling Time vs
Output Voltage Change
2nd and 3rd Harmonic
Distortion vs Frequency
CMRR, PSRR and Closed-Loop
Output Resistance vs Frequency
Supply Current vs
Supply Voltage
Common-Mode Input Range
vs Supply Voltage
Output Voltage Range
vs Supply Voltage
EL2045
5
FN7030.1
February 11, 2005
Typical Performance Curves
(Continued)
Gain-Bandwidth Product
vs Supply Voltage
Open-Loop Gain
vs Supply Voltage
Slew-Rate vs
Supply Voltage
Bias and Offset Current
vs Input Common-Mode Voltage
Open-Loop Gain
vs Load Resistance
Voltage Swing
vs Load Resistance
Supply Current
vs Temperature
Bias and Offset
Current vs Temperature
Offset Voltage
vs Temperature
Gain-Bandwidth Product
vs Temperature
Open-Loop Gain PSRR
and CMRR vs Temperature
Slew Rate vs
Temperature
EL2045
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