EL1516AIYZ [INTERSIL]
Dual Ultra Low Noise Amplifier; 双超低噪声放大器
| 型号： | EL1516AIYZ |
| 厂家： | 
Intersil |
| 描述： | Dual Ultra Low Noise Amplifier |
| 文件： | 总16页 (文件大小：596K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EL1516, EL1516A
®
Data Sheet
May 4, 2005
FN7328.0
Dual Ultra Low Noise Amplifier
Features
The EL1516 is a dual, ultra low noise amplifier, ideally suited
to line receiving applications in ADSL, VDSL, and home
PNA designs. With low noise specification of just 1.3nV/√Hz
and 1.5pA/√Hz, the EL1516 is perfect for the detection of
very low amplitude signals.
• EL2227 upgrade replacement
• Voltage noise of only 1.3nV/√Hz
• Current noise of only 1.5pA/√Hz
• Bandwidth (-3dB) of 350MHz @ A = -1
V
The EL1516 features a -3dB bandwidth of 350MHz @ A =
V
• Bandwidth (-3dB) of 250MHz @ A = +2
V
-1 and is gain-of-2 stable. The EL1516 also affords minimal
power dissipation with a supply current of just 5.5mA per
amplifier. The amplifier can be powered from supplies
ranging from 5V to 12V.
• Gain-of-2 stable
• Just 5.5mA per amplifier
• 100mA I
OUT
The EL1516A incorporates an enable and disable function to
reduce the supply current to 5nA typical per amplifier,
allowing the EN pins to float or apply a low logic level will
enable the amplifiers.
• Fast enable/disable (EL1516A only)
• 5V to 12V operation
• Pb-free available (RoHS compliant)
The EL1516 is available in space-saving 8-pin MSOP and
industry-standard 8-pin SO packages and the EL1516A is
available in a 10-pin MSOP package. All are specified for
operation over the -40°C to +85°C temperature range.
Applications
• ADSL receivers
• VDSL receivers
Pinouts
• Home PNA receivers
• Ultrasound input amplifiers
• Wideband instrumentation
• Communications equipment
• AGC & PLL active filters
• Wideband sensors
EL1516
(8-PIN SO, MSOP)
TOP VIEW
VOUTA
VINA-
VINA+
VS-
1
2
3
4
8
7
6
5
VS+
-
+
VOUTB
VINB-
VINB+
-
+
EL1516A
(10-PIN MSOP)
TOP VIEW
VINA+
ENA
1
2
3
4
5
10 VINA-
VOUTA
VS+
9
8
7
6
VS-
ENB
VOUTB
VINB-
VINB+
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2005. All Rights Reserved.
1
All other trademarks mentioned are the property of their respective owners.
EL1516, EL1516A
Ordering Information
PART
TAPE &
REEL
NUMBER
PACKAGE
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
PKG. DWG. #
EL1516IY
-
13”
7”
-
MDP0043
MDP0043
MDP0043
MDP0043
EL1516IY-T13
EL1516IY-T7
EL1516IYZ
(See Note)
8-Pin MSOP
(Pb-free)
EL1516IYZ-T13
(See Note)
8-Pin MSOP
(Pb-free)
13”
7”
MDP0043
MDP0043
EL1516IYZ-T7
(See Note)
8-Pin MSOP
(Pb-free)
EL1516IS
8-Pin SO
8-Pin SO
8-Pin SO
-
13”
7”
-
MDP0027
MDP0027
MDP0027
MDP0027
EL1516IS-T13
EL1516IS-T7
EL1516ISZ
(See Note)
8-Pin SO
(Pb-free)
EL1516ISZ-T13
(See Note)
8-Pin SO
(Pb-free)
13”
7”
MDP0027
MDP0027
EL1516ISZ-T7
(See Note)
8-Pin SO
(Pb-free)
EL1516AIY
10-Pin MSOP
-
13”
7”
-
MDP0043
MDP0043
MDP0043
MDP0043
EL1516AIY-T13 10-Pin MSOP
EL1516AIY-T7
10-Pin MSOP
EL1516AIYZ
(See Note)
10-Pin MSOP
(Pb-free)
EL1516AIYZ-
10-Pin MSOP
(Pb-free)
13”
7”
MDP0043
MDP0043
T13 (See Note)
EL1516AIYZ-T7 10-Pin MSOP
(See Note) (Pb-free)
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.
FN7328.0
2
May 4, 2005
EL1516, EL1516A
Absolute Maximum Ratings (T = 25°C)
A
Supply Voltage between V + and V -. . . . . . . . . . . . . . . . . . . . .14V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
S
S
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .V - -0.3V, V +0.3V
S
S
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . 40mA
Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .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. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: T = T = T
A
J
C
Electrical Specifications V + = +2.5V, V - = -2.5V, R = 500Ω and C = 3pF to 0V, R = R = 620Ω, V
= 0V, and T = 25°C, unless
A
S
S
L
L
F
G
CM
otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CHARACTERISTICS
V
Input Offset Voltage
V
V
= 0V
= 0V
-0.2
-0.3
6.5
50
+3
mV
µV/°C
µA
OS
TCV
CM
Average Offset Voltage Drift
Input Bias Current
OS
I
I
9
B
CM
Input Offset Current
Input Impedance
500
nA
OS
R
C
2
MΩ
IN
IN
Input Capacitance
1.6
pF
CMIR
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
-1.3
85
+1.7
V
CMRR
for V from -4.7V to 5.4V
IN
105
75
dB
A
V
= ±1.25V
O
70
dB
VOL
e
Voltage Noise
f = 100kHz
f = 100kHz
1.24
1.5
nV/√Hz
pA/√Hz
n
i
Current Noise
n
OUTPUT CHARACTERISTICS
V
Output Swing Low
Output Swing High
Short Circuit Current
R
= 500Ω
L
1.45
1.37
1.6
1.35
1.25
V
V
OL
R = 150Ω
L
V
R
= 500Ω
L
1.5
1.4
60
V
OH
R = 150Ω
1.5
V
L
I
R
= 10Ω
75
mA
SC
L
POWER SUPPLY PERFORMANCE
PSRR Power Supply Rejection Ratio
V
is moved from ±5.4V to ±6.6V
75
80
5.7
2
dB
mA
µA
S
I
I
Supply Current Enable (Per Amplifier)
No load
I+ (DIS)
I- (DIS)
7
5
S ON
Supply Current Disable (Per Amplifier)
(EL1516A)
S OFF
-19
5
-16
32
µA
TC I
I
Temperature Coefficient
S
µA/°C
V
S
V
Operating Range
DYNAMIC PERFORMANCE
12
S
SR
Slew Rate
V
= ±1.25V square wave, measured 25%-
80
110
V/µs
O
75%
TC SR
SR Temperature Coefficient
0.5
25
V/µs/°C
ns
t
Settling to 0.1% (A = +2)
V
A
= +2, V
±1V
O =
S
V
BW1
BW2
-3dB Bandwidth
-3dB Bandwidth
A
= -1, R
100Ω
100Ω
320
200
MHz
MHz
V
F =
= +2, R
A
V
F =
FN7328.0
3
May 4, 2005
EL1516, EL1516A
Electrical Specifications V + = +2.5V, V - = -2.5V, R = 500Ω and C = 3pF to 0V, R = R = 620Ω, V
= 0V, and T = 25°C, unless
A
S
S
L
L
F
G
CM
otherwise specified. (Continued)
PARAMETER
HD2
DESCRIPTION
2nd Harmonic Distortion
3rd Harmonic Distortion
CONDITIONS
MIN
TYP
90
MAX
UNIT
dBc
f = 1MHz, V = 2V , R = 100Ω
P-P
O
L
HD3
f = 1MHz, V = 2V , R = 100Ω
P-P
95
dBc
O
L
ENABLE (EL1516AIY ONLY)
t
t
I
I
Enable Time
125
336
18
ns
ns
µA
nA
V
EN
Disable Time
DIS
EN Pin Input High Current
EN Pin Input Low Current
EN = V +
S
IHEN
ILEN
EN = V -
10
S
V
EN Pin Input High Voltage for Power-
down
V + -1
S
IHEN
V
EN Pin Input Low Voltage for Power-up
V - +3
V
IHEN
S
Electrical Specifications V + = +6V, V - = -6V, R = 500Ω and C = 3pF to 0V, R = R = 620Ω, V
= 0V, and T = 25°C, unless
A
S
S
L
L
F
G
CM
otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CHARACTERISTICS
V
Input Offset Voltage
V
= 0V
= 0V
0.1
-0.3
6.5
50
3
mV
µV/°C
µA
OS
TCV
CM
Average Offset Voltage Drift
Input Bias Current
OS
I
I
V
9
B
CM
Input Offset Current
Input Impedance
500
nA
OS
R
12
MΩ
IN
IN
C
Input Capacitance
1.6
pF
CMIR
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
-4.5
90
+5.5
V
CMRR
for V from -4.7V to 5.4V
IN
110
80
dB
A
V
= ±2.5V
O
75
dB
VOL
e
Voltage Noise
f = 100kHz
f = 100kHz
1.24
1.5
nV/√Hz
pA/√Hz
n
i
Current Noise
n
OUTPUT CHARACTERISTICS
V
Output Swing Low
Output Swing High
Short Circuit Current
R
= 500Ω
L
-4.8
-4.6
4.9
-4.7
-4.5
V
V
OL
R = 150Ω
L
V
R
= 500Ω
L
4.8
4.5
110
V
OH
R = 150Ω
4.7
V
L
I
R
= 10Ω
160
mA
SC
L
POWER SUPPLY PERFORMANCE
PSRR Power Supply Rejection Ratio
V
is moved from ±5.4V to ±6.6V
75
85
5.8
2
dB
mA
µA
S
I
I
Supply Current Enable (Per Amplifier)
No load
I+ (DIS)
I- (DIS)
7
5
S ON
Supply Current Disable (Per Amplifier)
(EL1516A)
S OFF
-19
5
-16
32
µA
TC I
I
Temperature Coefficient
S
µA/°C
V
S
V
Operating Range
12
S
FN7328.0
4
May 4, 2005
EL1516, EL1516A
Electrical Specifications V + = +6V, V - = -6V, R = 500Ω and C = 3pF to 0V, R = R = 620Ω, V
= 0V, and T = 25°C, unless
A
S
S
L
L
F
G
CM
otherwise specified. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC PERFORMANCE
SR
Slew Rate
SR Temperature Coefficient
V
= ±2.5V square wave, measured 25%-75%
90
128
0.5
V/µs
V/µs/°C
ns
O
TC SR
t
Settling to 0.1% (A = +2)
V
A
= +2, V ±1V
O =
20
S
V
BW1
BW2
HD2
-3dB Bandwidth
A
= -1, R
100Ω
100Ω
350
250
125
117
115
110
MHz
MHz
dBc
V
F =
A = +2, R
V
-3dB Bandwidth
F =
2nd Harmonic Distortion
f = 1MHz, V = 2V , R = 500Ω
P-P
O
L
f = 1MHz, V = 2V , R = 150Ω
P-P
dBc
O
L
HD3
3rd Harmonic Distortion
f = 1MHz, V = 2V , R = 500Ω
P-P
dBc
O
L
f = 1MHz, V = 2V , R = 150Ω
P-P
dBc
O
L
ENABLE (EL1516AIY ONLY)
t
t
I
I
Enable Time
125
336
17
ns
ns
µA
nA
V
EN
Disable Time
DIS
EN Pin Input High Current
EN Pin Input Low Current
EN = V +
20
20
IHEN
ILEN
S
EN = V -
7
S
V
EN Pin Input High Voltage for Power-
down
V + -1
S
IHEN
V
EN Pin Input Low Voltage for Power-up
V - +3
V
IHEN
S
Typical Performance Curves
4
4
2
V =±6V
V =±6V
S
S
A =+2
R =348Ω
F
V
R =500Ω
R =500Ω
L
L
2
0
R =100Ω
0
F
R =348Ω
F
-2
-4
-6
R =1kΩ
-2
-4
-6
F
A =10
A =5
V
A =2
V
V
R =619Ω
F
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 1. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
FIGURE 2. NON-INVERTING FREQUENCY RESPONSE (GAIN)
F
FN7328.0
5
May 4, 2005
EL1516, EL1516A
Typical Performance Curves (Continued)
4
4
2
V =±6V
S
V =±6V
S
C =22pF
L
C =12pF
L
A =+2
V
A =+2
V
R =500Ω
R =619Ω
F
L
2
0
R =619Ω
C =4.7pF
L
F
0
R =500Ω
L
R =100Ω
L
-2
-4
-6
-2
-4
-6
C =1pF
L
C =0pF
L
R =50Ω
L
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 3. NON-INVERTING FREQUENCY RESPONSE FOR
FIGURE 4. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
VARIOUS C
L
L
4
2
4
2
V =±6V
V =±6V
S
S
A =+2
A =-1
V
V
R =500Ω
R =500Ω
L
L
R =348Ω
F
V
=100mV
PP
IN
R =420Ω
F
R =100Ω
F
V
=20mV
PP
IN
0
0
V
=500mV
PP
IN
R =620Ω
F
-2
-4
-6
-2
-4
-6
V
=1V
=2V
IN
IN
PP
PP
R =1kΩ
F
V
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 5. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS INPUT SIGNAL LEVELS
FIGURE 6. INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
F
4
4
2
V =±6V
V =±6V
S
S
C =18pF
L
R =420Ω
A =-1
V
F
R =500Ω
R =500Ω
L
L
2
0
R =420Ω
F
C =12pF
L
0
A =-1
V
A =-2
V
-2
-4
-6
-2
-4
-6
A =-10
V
C =2pF
L
A =-5
V
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 7. INVERTING FREQUENCY RESPONSE (GAIN)
FIGURE 8. INVERTING FREQUENCY RESPONSE FOR
VARIOUS C
L
FN7328.0
6
May 4, 2005
EL1516, EL1516A
Typical Performance Curves (Continued)
4
5
3
V =±6V
V =±2.5V
S
S
A =-1
A =-1
V
V
R =500Ω
R =500Ω
L
L
2
0
R =420Ω
F
V
=280mV
PP
IN
R =100Ω
F
V
=20mV
PP
1
R =422Ω
F
IN
V
V
=1.4V
=2.8V
IN
IN
PP
-2
-4
-6
-1
-3
-5
R =619Ω
F
PP
R =1kΩ
F
1M
10M
100M
1G
100K
1M
10M
FREQUENCY (Hz)
100M
1G
FREQUENCY (Hz)
FIGURE 9. INVERTING FREQUENCY RESPONSE FOR
VARIOUS SIGNAL LEVELS
FIGURE 10. INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
F
5
5
3
V =±2.5V
V =±2.5V
S
S
R =422Ω
A =-1
V
F
R =500Ω
R =420Ω
F
L
3
1
A =-2
V
1
R =500Ω
L
-1
-3
-5
-1
-3
-5
A =-1
V
A =-5
V
R =50Ω
L
A =-10
V
R =100Ω
L
100K
1M
10M
FREQUENCY (Hz)
100M
1G
100K
1M
10M
100M
1G
FREQUENCY (Hz)
FIGURE 11. INVERTING FREQUENCY RESPONSE FOR
VARIOUS A
FIGURE 12. INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
V
L
5
3
5
3
V =±2.5V
S
V =±2.55V
S
C =18pF
L
A =-1
V
A =-1
V
R =420Ω
R =420Ω
F
F
R =500Ω
R =500Ω
L
L
C =15pF
L
V
=280mV
P-P
IN
1
1
C =12pF
L
V
=20mV
P-P
IN
-1
-3
-5
-1
-3
-5
C =10pF
L
V
=1.4V
IN
P-P
C =0pF
L
V
=2.24V
P-P
IN
100K
1M
10M
FREQUENCY (Hz)
100M
1G
100K
1M
10M
FREQUENCY (Hz)
100M
1G
FIGURE 13. INVERTING FREQUENCY RESPONSE FOR
VARIOUS C
FIGURE 14. INVERTING FREQUENCY RESPONSE FOR
VARIOUS INPUT SIGNAL LEVELS
L
FN7328.0
May 4, 2005
7
EL1516, EL1516A
Typical Performance Curves (Continued)
5
5
3
V =±2.5V
V =±2.5V
S
S
A =+2
R =348Ω
F
V
R =500Ω
R =500Ω
L
L
3
1
R =348Ω
1
F
R =100Ω
A =+2
F
V
-1
-3
-5
-1
-3
-5
R =619Ω
F
A =+5
V
R =1kΩ
L
A =+10
V
100K
1M
10M
FREQUENCY (Hz)
100M
1G
100K
1M
10M
100M
1G
FREQUENCY (Hz)
FIGURE 15. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
FIGURE 16. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS A
F
V
5
3
5
3
V =±2.5V
S
V =±2.5V
S
A =+2
V
A =+2
V
C =27pF
L
R =619Ω
R =619Ω
L
F
C =18pF
R =500Ω
L
L
C =10pF
L
1
1
R =100Ω
F
-1
-3
-5
-1
-3
-5
C =3.3pF
L
R =500Ω
F
C =0pF
L
R =50Ω
L
100K
1M
10M
FREQUENCY (Hz)
100M
1G
100K
1M
10M
FREQUENCY (Hz)
100M
1G
FIGURE 17. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS C
FIGURE 18. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS R
L
L
5
3
-30
-40
-50
-60
-70
-80
-90
-100
V =±2.55V
V =±6V
S
S
R =348Ω
R =R =619Ω
F
F
G
R =500Ω
R =100Ω
L
L
V
=20mV
IN
P-P
1
V =100mV
IN P-P
V
=200mV
=500mV
IN
P-P
-1
-3
2ND HD
6
V
IN
P-P
3RD HD
8
V
=1V
P-P
IN
-5
100K
1M
10M
FREQUENCY (Hz)
100M
1G
0
2
4
10
OUTPUT SWING (V
)
PP
FIGURE 19. NON-INVERTING FREQUENCY RESPONSE FOR
VARIOUS INPUT SIGNAL LEVELS
FIGURE 20. 1MHz 2ND AND 3RD HARMONIC DISTORTION vs
OUTPUT SWING
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May 4, 2005
EL1516, EL1516A
Typical Performance Curves (Continued)
-70
-20
-30
-40
-50
-60
-70
-80
-90
V =±2.5V
S
V
=2V
PP
O
A =+2
V
V =±6V
S
-75
-80
R =R =619Ω
R =R =620Ω
F
G
F
L
G
R =100Ω
R =500Ω
L
V
=2V
OUT
P-P
-85
-90
THD
-95
2ND HD
10M
-100
-105
3RD HD
-100
500K
10K
100K
200K
1M
20M
FREQUENCY (Hz)
FUNDAMENTAL FREQUENCY (Hz)
FIGURE 21. THD + NOISE vs FREQUENCY
FIGURE 22. HARMONIC DISTORTION vs FREQUENCY
-30
12
10
8
-40
-50
THD-F =10MHz
IN
-60
6
-70
4
-80
V =±2.5V
S
A =+2
V
2
THD-F =1MHz
IN
-90
R =R =619Ω
F
G
R =500Ω
L
-100
0
0.2
0.7
1.2
1.7
2.2
2.7
3.2
0
1
2
3
4
5
6
OUTPUT VOLTAGE (VP
)
SUPPLY VOLTAGE (±V)
-P
FIGURE 23. THD vs OUTPUT VOLTAGE
FIGURE 24. SUPPLY CURRENT vs SUPPLY VOLTAGE
250
200
150
100
50
-10
V =±6V
S
A =+2
V
A =+2
V
R =620Ω
F
-30
-50
R =500Ω
L
BaaaA
A =-1
V
-70
AaaaB
A =-2
V
A =-10
V
A =+5
A =-5
V
V
-90
A =+10
V
0
-110
2
3
4
5
6
100K
1M
10M
FREQUENCY (Hz)
100M
1G
SUPPLY VOLTAGE (±V)
FIGURE 25. 3dB BANDWIDTH vs SUPPLY VOLTAGE
FIGURE 26. CHANNEL-TO-CHANNEL ISOLATION vs
FREQUENCY
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May 4, 2005
9
EL1516, EL1516A
Typical Performance Curves (Continued)
-30
-10
-30
V =±6V
V =±6V
S
S
R =1kΩ
A =+1
V
L
R =500Ω
L
-50
-70
-50
PSRR+
-90
-70
PSRR-
-110
-90
-130
-110
100K
1M
10M
100M
1G
100K
1M
10M
FREQUENCY (Hz)
100M
1G
FREQUENCY (Hz)
FIGURE 27. CMRR
FIGURE 28. PSRR
100
10
12
10
8
6
1
4
-0.1
2
0
10
0.01
10K
100K
1M
10M
100M
100
1K
10K
100K
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 29. CLOSED LOOP OUTPUT IMPEDANCE vs
FREQUENCY
FIGURE 30. VOLTAGE NOISE
0.07
V =±6V
S
V =±6V
S
A =2
R =500Ω
V
L
0.06
R =620Ω
R =620Ω
F
F
DIFF GAIN
0.05
0.04
DIFF PHASE
0.5V/DIV
0.03
0.02
0.01
0
1
2
3
4
100ns/DIV
NUMBER OF 150Ω LOADS
FIGURE 31. DIFFERENTIAL GAIN/PHASE
FIGURE 32. LARGE SIGNAL STEP RESPONSE
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May 4, 2005
10
EL1516, EL1516A
Typical Performance Curves (Continued)
V =±2.5V
V =±6V
S
S
R =500Ω
R =500Ω
L
L
R =620Ω
R =620Ω
F
F
0.5V/DIV
20mV/DIV
100ns/DIV
100ns/DIV
FIGURE 33. LARGE SIGNAL STEP RESPONSE
FIGURE 34. SMALL SIGNAL STEP RESPONSE
10
9
V =±2.5V
S
R =500Ω
L
R =620Ω
F
8
7
6
20mV/DIV
5
4
3
2
-40 -20
0
20 40 60 80 100 120 140 150
DIE TEMPERATURE (°C)
100ns/DIV
FIGURE 35. SMALL SIGNAL STEP RESPONSE
FIGURE 36. SUPPLY CURRENT vs TEMPERATURE
200
500
450
400
350
300
250
200
A =+2V
V
V
=2V
PP
O
R =200Ω
F
160
120
80
R =500Ω
L
40
0
-40 -20
0
20 40 60 80 100 120 140 150
DIE TEMPERATURE (°C)
-40 -20
0
20 40 60 80 100 120 140 150
DIE TEMPERATURE (°C)
FIGURE 37. -3dB BANDWIDTH vs TEMPERATURE
FIGURE 38. SLEW RATE vs TEMPERATURE
FN7328.0
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May 4, 2005
EL1516, EL1516A
Typical Performance Curves (Continued)
30
0
V =±6V
S
50mV
-50
OPP
26
22
18
14
10
-100
-150
-200
-250
-300
-350
-400
-40 -20
0
20 40 60 80 100 120 140 150
DIE TEMPERATURE (°C)
-40 -20
0
20 40 60 80 100 120 140 150
DIE TEMPERATURE (°C)
FIGURE 39. 0.1% SETTLING TIME vs TEMPERATURE
FIGURE 40. V
vs TEMPERATURE
OS
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
8
7
6
5
4
1.2
1
781mW
0.8
0.6
0.4
0.2
0
SO8
=160°C/W
607mW
θ
JA
MSOP8/10
JA
θ
=206°C/W
-40 -20
0
20 40 60 80 100 120 140 150
0
25
50
75 85 100
125
150
DIE TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
FIGURE 41. I
CURRENT vs TEMPERATURE
FIGURE 42. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
BIAS
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
1.8
1.6
1.4
1.2
1
1.136W
SO8
1.087W
θ
=110°C/W
JA
0.8
0.6
0.4
0.2
0
MSOP8/10
JA
θ
=115°C/W
0
25
50
75 85 100
125
150
AMBIENT TEMPERATURE (°C)
FIGURE 43. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FN7328.0
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12
EL1516, EL1516A
Pin Descriptions
EL1516
(8-PIN SO &
EL1516A
8-PIN MSOP) (10-PIN MSOP)
PIN NAME
PIN FUNCTION
Output
EQUIVALENT CIRCUIT
1
9
VOUTA
V +
S
V
OUT
CIRCUIT 1
2
10
VINA-
Input
V +
S
V
+
V -
IN
IN
V -
S
CIRCUIT 2
3
4
5
6
7
8
1
3
VINA+
VS-
Input
Supply
Input
Reference Circuit 2
5
VINB+
VINB-
6
Input
Reference Circuit 2
Reference Circuit 1
7
VOUTB
VS+
Output
Supply
Enable
8
2, 4
ENA, ENB
V +
S
EN
570K
V -
S
CIRCUIT 3
FN7328.0
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May 4, 2005
EL1516, EL1516A
EL1516 to remain in the safe operating area. These
parameters are related as follows:
Applications Information
Product Description
T
= T
+ (θ × PD
MAXTOTAL
)
JMAX
MAX
JA
The EL1516 is a dual voltage feedback operational amplifier
designed especially for DMT ADSL and other applications
requiring very low voltage and current noise. It also features
low distortion while drawing moderately low supply current.
The EL1516 uses a classical voltage-feedback topology
which allows it to be used in a variety of applications where
current-feedback amplifiers are not appropriate because of
restrictions placed upon the feedback element used with the
amplifier. The conventional topology of the EL1516 allows,
for example, a capacitor to be placed in the feedback path,
making it an excellent choice for applications such as active
filters, sample-and-holds, or integrators.
where:
• PD
is the sum of the maximum power
MAX
MAXTOTAL
dissipation of each amplifier in the package (PD
)
• PD
for each amplifier can be calculated as follows:
MAX
V
OUTMAX
----------------------------
PD
= 2 × V × I
+ (V – V
OUTMAX
) ×
MAX
S
SMAX
S
R
L
where:
• T
= Maximum ambient temperature
MAX
ADSL CPE Applications
• θ = Thermal resistance of the package
JA
• PD
The low noise EL1516 amplifier is specifically designed for
the dual differential receiver amplifier function with ADSL
transceiver hybrids as well as other low-noise amplifier
applications. A typical ADSL CPE line interface circuit is
shown in Figure 44. The EL1516 is used in receiving DMT
down stream signal. With careful transceiver hybrid design
and the EL1516 1.4nV/√Hz voltage noise and 1.5pA/√Hz
current noise performance, -140dBm/Hz system background
noise performance can be easily achieved.
= Maximum power dissipation of 1 amplifier
MAX
• V = Supply voltage
S
• I
= Maximum supply current of 1 amplifier
MAX
• V
= Maximum output voltage swing of the
OUTMAX
application
• R = Load resistance
L
To serve as a guide for the user, we can calculate maximum
allowable supply voltages for the example of the video cable-
R
LINE +
DRIVER
INPUT
OUT
+
-
R
R
F
F
driver below since we know that T
= 150°C, T
=
JMAX
MAX
= 7.7mA, and the package θ s are shown in
75°C, I
SMAX
JA
R
G
Table 1. If we assume (for this example) that we are driving a
back-terminated video cable, then the maximum average
Z
LINE
value (over duty-cycle) of V
is 1.4V, and R = 150Ω,
OUTMAX
L
R
LINE -
OUT
-
giving the results seen in Table 1.
+
TABLE 1.
R
R
F
MAXP
DISS
R
IN
-
PART
PACKAGE
θ
@ T
MAX V
S
RECEIVE
OUT +
JA
MAX
+
+
RECEIVE
EL1516IS
SO8
110°C/W
115°C/W
115°C/W
0.406W @
85°C
AMPLIFIERS
+
-
R
R
R
IN
F
EL1516IY
MSOP8
0.400W @
85°C
RECEIVE
OUT -
EL1516AIY
MSOP10
0.400W @
85°C
FIGURE 44. TYPICAL LINE INTERFACE CONNECTION
Power Dissipation
Single-Supply Operation
With the wide power supply range and large output drive
capability of the EL1516, it is possible to exceed the 150°C
maximum junction temperatures under certain load and
power supply conditions. It is therefore important to calculate
the maximum junction temperature (T
applications to determine if power supply voltages, load
conditions, or package type need to be modified for the
The EL1516 has been designed to have a wide input and
output voltage range. This design also makes the EL1516 an
excellent choice for single-supply operation. Using a single
positive supply, the lower input voltage range is within 1.2V
) for all
JMAX
of ground (R = 500Ω), and the lower output voltage range is
L
within 875mV of ground. Upper input voltage range reaches
3.6V, and output voltage range reaches 3.8V with a 5V
supply and R = 500Ω. This results in a 2.625V output swing
L
on a single 5V supply. This wide output voltage range also
FN7328.0
14
May 4, 2005
EL1516, EL1516A
allows single-supply operation with a supply voltage as high
as 12V.
output drive capability makes the EL1516 an ideal choice for
RF, IF and video applications.
Gain-Bandwidth Product and the -3dB Bandwidth
Printed-Circuit Layout
The EL1516 has a gain-bandwidth product of 300MHz while
using only 6mA of supply current per amplifier. For gains
greater than 2, their closed-loop -3dB bandwidth is
approximately equal to the gain-bandwidth product divided
by the noise gain of the circuit. For gains less than 2, higher-
order poles in the amplifiers' transfer function contribute to
even higher closed loop bandwidths. For example, the
EL1516 has a -3dB bandwidth of 350MHz at a gain of +2,
dropping to 80MHz at a gain of +5. It is important to note that
the EL1516 has been designed so that this “extra” bandwidth
in low-gain applications does not come at the expense of
stability. As seen in the typical performance curves, the
EL1516 in a gain of +2 only exhibits 0.5dB of peaking with a
1000Ω load.
The EL1516 is well behaved, and easy to apply in most
applications. However, a few simple techniques will help
assure rapid, high quality results. As with any high-frequency
device, good PCB layout is necessary for optimum
performance. Ground-plane construction is highly
recommended, as is good power supply bypassing. A 0.1µF
ceramic capacitor is recommended for bypassing both
supplies. Lead lengths should be as short as possible, and
bypass capacitors should be as close to the device pins as
possible. For good AC performance, parasitic capacitances
should be kept to a minimum at both inputs and at the
output. Resistor values should be kept under 5kΩ because
of the RC time constants associated with the parasitic
capacitance. Metal-film and carbon resistors are both
acceptable, use of wire-wound resistors is not recommended
because of their parasitic inductance. Similarly, capacitors
should be low-inductance for best performance.
Output Drive Capability
The EL1516 has been designed to drive low impedance
loads. It can easily drive 6V into a 100Ω load. This high
PP
MSOP Package Outline Drawing
FN7328.0
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May 4, 2005
EL1516, EL1516A
SO Package Outline Drawing
NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at
http://www.intersil.com/design/packages/index.asp
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN7328.0
16
May 4, 2005
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