®
EL2227
Data Sheet
May 1, 2007
FN7058.3
Dual Very Low Noise Amplifier
The EL2227 is a dual, low-noise amplifier, ideally suited to
line receiving applications in ADSL and HDSLII designs.
With low noise specification of just 1.9nV/√Hz and
1.2pA/√Hz, the EL2227 is perfect for the detection of very
low amplitude signals.
The EL2227 features a -3dB bandwidth of 115MHz and is
gain-of-2 stable. The EL2227 also affords minimal power
dissipation with a supply current of just 4.8mA per amplifier.
The amplifier can be powered from supplies ranging from
±2.5V to ±12V.
The EL2227 is available in a space-saving 8 Ld MSOP
package as well as the industry-standard 8 Ld SOIC. It can
operate over the -40°C to +85°C temperature range.
Features
• Voltage noise of only 1.9nV/√Hz
• Current noise of only 1.2pA/√Hz
• Bandwidth (-3dB) of 115MHz @A
V
= +2
• Gain-of-2 stable
• Just 4.8mA per amplifier
• 8 Ld MSOP package
• ±2.5V to ±12V operation
• Pb-free plus anneal available (RoHS compliant)
Applications
• ADSL receivers
• HDSLII receivers
Pinout
EL2227
(8 LD SOIC, 8 LD MSOP)
TOP VIEW
• Ultrasound input amplifiers
• Wideband instrumentation
• Communications equipment
VOUTA
VINA-
VINA+
VS
-
1
2
3
4
-
+
-
+
8
7
6
5
VS+
VOUTB
VINB-
VINB+
• AGC and PLL active filters
• Wideband sensors
Ordering Information
PART NUMBER
EL2227CY
EL2227CY-T13
EL2227CY-T7
EL2227CYZ (Note)
EL2227CYZ-T13 (Note)
EL2227CYZ-T7 (Note)
EL2227CS
EL2227CS-T13
EL2227CS-T7
EL2227CSZ (Note)
EL2227CSZ-T13 (Note)
EL2227CSZ-T7 (Note)
L
L
L
BASAA
BASAA
BASAA
2227CS
2227CS
2227CS
2227CSZ
2227CSZ
2227CSZ
PART
MARKING
TEMP RANGE
(°C)
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
-40 to +85
.
TAPE AND REEL
-
13”
7”
-
13”
7”
-
13”
7”
-
13”
7”
PACKAGE
8 Ld MSOP (3.0mm)
8 Ld MSOP (3.0mm)
8 Ld MSOP (3.0mm)
8 Ld MSOP (3.0mm) (Pb-free)
8 Ld MSOP (3.0mm) (Pb-free)
8 Ld MSOP (3.0mm) (Pb-free)
8 Ld SOIC (150 mil)
8 Ld SOIC (150 mil)
8 Ld SOIC (150 mil)
8 Ld SOIC (150 mil) (Pb-free)
8 Ld SOIC (150 mil) (Pb-free)
8 Ld SOIC (150 mil) (Pb-free)
PKG. DWG.#
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
MDP0043
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
NOTE: Intersil Pb-free plus anneal 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
EL2227
Absolute Maximum Ratings
Supply Voltage between V
S
+ and V
S
- . . . . . . . . . . . . . . . . . . . . .28V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . V
S
- - 0.3V, V
S
+0.3V
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . 40mA
Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
ESD Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
Thermal Information
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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
Electrical Specifications
PARAMETER
INPUT CHARACTERISTICS
V
OS
TCV
OS
I
B
R
IN
C
IN
CMIR
CMRR
A
VOL
e
N
i
N
V
S
+ = +12V, V
S
- = -12V, R
L
= 500Ω and C
L
= 3pF to 0V, R
F
= R
G
= 620Ω, and T
A
= +25°C Unless Otherwise
Specified.
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
Input Offset Voltage
Average Offset Voltage Drift
Input Bias Current
Input Impedance
Input Capacitance
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
Voltage Noise
Current Noise
V
CM
= 0V
-0.2
-0.6
3
mV
µV/°C
µA
MΩ
pF
V
CM
= 0V
-9
-3.4
7.3
1.6
-11.8
for V
IN
from -11.8V to 10.4V
-5V
≤
V
OUT
≤
5V
f = 100kHz
f = 100kHz
60
70
94
87
1.9
1.2
+10.4
V
dB
dB
nV/√Hz
pA/√Hz
OUTPUT CHARACTERISTICS
V
OL
Output Swing Low
R
L
= 500Ω
R
L
= 250Ω
V
OH
Output Swing High
R
L
= 500Ω
R
L
= 250Ω
I
SC
Short Circuit Current
R
L
= 10Ω
10
9.5
140
-10.4
-9.8
10.4
10
180
-10
-9
V
V
V
V
mA
POWER SUPPLY PERFORMANCE
PSRR
I
S
V
S
Power Supply Rejection Ratio
Supply Current (Per Amplifier)
Operating Range
V
S
is moved from ±2.25V to ±12V
No Load
±2.5
65
95
4.8
6.5
±12
dB
mA
V
DYNAMIC PERFORMANCE
SR
t
S
BW
HD2
Slew Rate (Note 2)
Settling to 0.1% (A
V
= +2)
-3dB Bandwidth
2nd Harmonic Distortion
±2.5V square wave, measured 25% to 75%
(A
V
= +2), V
O =
±1V
R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 500Ω, R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 150Ω, R
F
= 358Ω
HD3
3rd Harmonic Distortion
f = 1MHz, V
O
= 2V
P-P
, R
L
= 500Ω, R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 150Ω, R
F
= 358Ω
40
50
65
115
93
83
94
76
V/µS
ns
MHz
dBc
dBc
dBc
dBc
2
FN7058.3
May 1, 2007
EL2227
Electrical Specifications
PARAMETER
INPUT CHARACTERISTICS
V
OS
TCV
OS
I
B
R
IN
C
IN
CMIR
CMRR
A
VOL
e
N
i
N
Input Offset Voltage
Average Offset Voltage Drift
Input Bias Current
Input Impedance
Input Capacitance
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
Voltage Noise
Current Noise
for V
IN
from -4.8V to 3.4V
-5V
≤
V
OUT
≤
5V
f = 100kHz
f = 100kHz
-4.8
60
70
97
84
1.9
1.2
V
CM
= 0V
-9
V
CM
= 0V
0.2
-0.6
-3.7
7.3
1.6
3.4
3
mV
µV/°C
µA
MΩ
pF
V
dB
dB
nV/√Hz
pA/√Hz
V
S
+ = +12V, V
S
- = -12V, R
L
= 500Ω and C
L
= 3pF to 0V, R
F
= R
G
= 620Ω, and T
A
= +25°C Unless Otherwise
Specified.
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
OUTPUT CHARACTERISTICS
V
OL
Output Swing Low
R
L
= 500Ω
R
L
= 250Ω
V
OH
Output Swing High
R
L
= 500Ω
R
L
= 250Ω
I
SC
Short Circuit Current
R
L
= 10Ω
3.5
3.5
60
-3.8
-3.7
3.7
3.6
100
-3.5
-3.5
V
V
V
V
mA
POWER SUPPLY PERFORMANCE
PSRR
I
S
V
S
Power Supply Rejection Ratio
Supply Current (Per Amplifier)
Operating Range
V
S
is moved from ±2.25V to ±12V
No Load
±2.5
65
95
4.5
5.5
±12
dB
mA
V
DYNAMIC PERFORMANCE
SR
t
S
BW
HD2
Slew Rate
Settling to 0.1% (A
V
= +2)
-3dB Bandwidth
2nd Harmonic Distortion
±2.5V square wave, measured 25%-75%
(A
V
= +2), V
O =
±1V
R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 500Ω, R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 150Ω, R
F
= 358Ω
HD3
3rd Harmonic Distortion
f = 1MHz, V
O
= 2V
P-P
, R
L
= 500Ω, R
F
= 358Ω
f = 1MHz, V
O
= 2V
P-P
, R
L
= 150Ω, R
F
= 358Ω
35
45
77
90
98
90
94
79
V/µS
ns
MHz
dBc
dBc
dBc
dBc
3
FN7058.3
May 1, 2007
EL2227
Typical Performance Curves
4
3
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
= ±12V
A
V
= +2
R
L
= 500Ω
10M
FREQUENCY (Hz)
100M 200M
R
F
= 100Ω
R
F
= 350Ω
R
F
= 1kΩ
R
F
= 620Ω
4
3
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
= ±12V
A
V
= -1
R
L
= 500Ω
10M
FREQUENCY (Hz)
R
F
= 420Ω
R
F
= 620Ω
R
F
= 1kΩ
R
F
= 100Ω
R
F
= 350Ω
100M 200M
FIGURE 1. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS RF
FIGURE 2. INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
F
4
3
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
= ±12V
R
F
= 350Ω
R
L
= 500Ω
10M
FREQUENCY (Hz)
100M 200M
A
V
= 10
A
V
= 5
A
V
= 2
4
3
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
= ±12V
R
F
= 420Ω
R
L
= 500Ω
10M
FREQUENCY (Hz)
100M 200M
A
V
= -5
A
V
= -10
A
V
= -2
A
V
= -1
FIGURE 3. NON-INVERTING FREQUENCY RESPONSE
(GAIN)
FIGURE 4. INVERTING FREQUENCY RESPONSE (GAIN)
135
90
45
0
PHASE (°)
-45
-90
-135
-180
-225
-270
-315
1M
V
S
= ±12
R
F
= 350Ω
R
L
= 500Ω
10M
FREQUENCY (Hz)
100M 200M
A
V
= 10
A
V
= 5
A
V
= 2
PHASE (°)
135
90
45
0
-45
-90
-135
-180
-225
-270
-315
1M
V
S
= ±12V
R
F
= 420Ω
R
L
= 500Ω
10M
FREQUENCY (Hz)
100M 200M
A
V
= -1
A
V
= -10
A
V
= -5
A
V
= -2
FIGURE 5. NON-INVERTING FREQUENCY RESPONSE
(PHASE)
FIGURE 6. INVERTING FREQUENCY RESPONSE (PHASE)
4
FN7058.3
May 1, 2007
EL2227
Typical Performance Curves
(Continued)
4
3
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
-6
100k
V
IN
= 1V
PP
V
IN
= 2V
PP
1M
10M
100M
V
IN
= 500mV
PP
V
S
= ±12V
R
F
= 350Ω
A
V
= +2
R
L
= 500Ω
4
3
V
IN
= 100mV
PP
V
IN
= 20mV
PP
NORMALIZED GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
±12V
R
F
= 420Ω
R
L
= 500Ω
A
V
= -1
10M
FREQUENCY (Hz)
100M 200M
V
IN
= 2.8V
PP
V
IN
= 280mV
PP
V
IN
= 1.4V
PP
V
IN
= 20mV
PP
FREQUENCY (Hz)
FIGURE 7. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS INPUT SIGNAL LEVELS
FIGURE 8. INVERTING FREQUENCY RESPONSE FOR
VARIOUS INPUT SIGNAL LEVELS
5
4
NORMALIZED GAIN (dB)
3
2
1
0
-1
-2
-3
-4
-5
1M
V
S
=±12
V
S
= ±12V
V
F
= 620Ω
R
R
F
=620
R
L
= 500Ω
Ω
V
= +2
A
10M
FREQUENCY (Hz)
100M 200M
C
L
= 2pF
C
L
= 30pF
C
L
= 12pF
NORMALIZED GAIN (dB)
4
3
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
± 12V
R
F
= 420Ω
R
L
= 500Ω
A
V
= -1
10M
FREQUENCY (Hz)
100M 200M
C
L
= 2pF
C
L
= 12pF
C
L
= 30pF
FIGURE 9. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS CL
FIGURE 10. INVERTING FREQUENCY RESPONSE FOR
VARIOUS CL
4
3
NORMALIZED GAIN (dB)
NorMalized GAIN (dB)
2
1
0
-1
-2
-3
-4
-5
-6
1M
V
S
= ±12V
R
F
= 620Ω
C
L
= 15pF
A
V
= +2
10M
FREQUENCY (Hz)
100M 200M
R
L
= 50Ω
R
L
= 100Ω
R
L
= 500Ω
4
3
2
1
0
-1
-2
-3
-4
-5
V
S
= ±12V
R
F
= 620Ω
R
L
= 500Ω
A
V
= +2
1M
V
O
= +10V
V
O
= -10V
V
O
= +5V
V
O
= 0V
V
O
= -5V
-6
100k
10M
100M
FREQUENCY (Hz)
FIGURE 11. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS RL
FIGURE 12. FREQUENCY RESPONSE FOR VARIOUS OUTPUT
DC LEVELS
5
FN7058.3
May 1, 2007
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