概述
规格参数
数据手册EL5420CS-T13 概述
12MHz Rail-to-Rail Input-Output Op Amps 12MHz的轨至轨输入输出运算放大器 运算放大器
EL5420CS-T13 规格参数
| 生命周期： | Transferred | 包装说明： | SO-14 |
| Reach Compliance Code： | unknown | 风险等级： | 5.63 |
| 放大器类型： | OPERATIONAL AMPLIFIER | 最大平均偏置电流 (IIB)： | 0.05 µA |
| 标称共模抑制比： | 70 dB | 最大输入失调电压： | 12000 µV |
| JESD-30 代码： | R-PDSO-G14 | 负供电电压上限： | -9 V |
| 标称负供电电压 (Vsup)： | -5 V | 功能数量： | 4 |
| 端子数量： | 14 | 最高工作温度： | 85 °C |
| 最低工作温度： | -40 °C | 封装主体材料： | PLASTIC/EPOXY |
| 封装形状： | RECTANGULAR | 封装形式： | SMALL OUTLINE |
| 认证状态： | Not Qualified | 标称压摆率： | 10 V/us |
| 供电电压上限： | 9 V | 标称供电电压 (Vsup)： | 5 V |
| 表面贴装： | YES | 技术： | CMOS |
| 温度等级： | INDUSTRIAL | 端子形式： | GULL WING |
| 端子位置： | DUAL | 标称均一增益带宽： | 8000 kHz |
| Base Number Matches： | 1 |
EL5420CS-T13 数据手册
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PDF下载EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Features
General Description
• 12MHz -3dB bandwidth
• Supply voltage = 4.5V to 16.5V
• Low supply current (per amplifier)
= 500µA
• High slew rate = 10V/µs
• Unity-gain stable
• Beyond the rails input capability
• Rail-to-rail output swing
• Ultra-small package
The EL5420C and EL5220C are low power, high voltage, rail-to-rail
input-output amplifiers. The EL5220C contains two amplifiers in one
package, and the EL5420C contains four amplifiers. Operating on sup-
plies ranging from 5V to 15V, while consuming only 500µA per
amplifier, the EL5420C and EL5220C have a bandwidth of 12MHz --
(-3dB). They also provide common mode input ability beyond the sup-
ply rails, as well as rail-to-rail output capability. This enables these
amplifiers to offer maximum dynamic range at any supply voltage.
The EL5420C and EL5220C also feature fast slewing and settling
times, as well as a high output drive capability of 30mA (sink and
source). These features make these amplifiers ideal for use as voltage
reference buffers in Thin Film Transistor Liquid Crystal Displays
(TFT-LCD). Other applications include battery power, portable
devices, and anywhere low power consumption is important.
Applications
• TFT-LCD drive circuits
• Electronics notebooks
• Electronics games
The EL5420C is available in a space-saving 14-pin TSSOP package,
the industry-standard 14-pin SO package, as well as a 16-pin LPP
package. The EL5220C is available in the 8-pin MSOP package. Both
feature a standard operational amplifier pin out. These amplifiers are
specified for operation over the full -40°C to +85°C temperature
range.
• Touch-screen displays
• Personal communication devices
• Personal digital assistants (PDA)
• Portable instrumentation
• Sampling ADC amplifiers
• Wireless LANs
• Office automation
• Active filters
Connection Diagrams
• ADC/DAC buffer
VOUTA
VINA-
VINA+
VS+
1
2
3
4
5
6
7
14 VOUTD
13 VIND-
12 VIND+
11 VS-
Ordering Information
-
-
Tape &
Part No.
EL5220CY
Package
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
16-Pin LPP
16-Pin LPP
16-Pin LPP
14-Pin TSSOP
14-Pin TSSOP
14-Pin TSSOP
14-Pin SO
Reel
Outline #
MDP0043
MDP0043
MDP0043
MDP0046
MDP0046
MDP0046
MDP0044
MDP0044
MDP0044
MDP0027
MDP0027
MDP0027
+
+
-
EL5220CY-T7
EL5220CY-T13
EL5420CL
7”
13”
-
VOUTA
VINA-
VINA+
VS-
1
2
3
4
8
7
6
5
VS+
VINB+
VINB-
VOUTB
10 VINC+
-
VOUTB
VINB-
VINB+
EL5420CL-T7
EL5420CL-T13
EL5420CR
7”
13”
-
+
-
+
-
+
9
8
VINC-
-
+
EL5420CR-T7
EL5420CR-T13
EL5420CS
7”
13”
-
VOUTC
EL5420C
(14-Pin TSSOP & 14-Pin SO)
EL5220C
(8-Pin MSOP)
EL5420CS-T7
EL5420CS-T13
14-Pin SO
7”
13”
14-Pin SO
Connection Diagrams are continued on page 4
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.
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Absolute Maximum Ratings (T = 25°C)
A
Values beyond absolute maximum ratings can cause the device to be pre-
maturely damaged. Absolute maximum ratings are stress ratings only
and functional device operation is not implied
Maximum Die Temperature
Storage Temperature
Operating Temperature
Power Dissipation
+125°C
-65°C to +150°C
-40°C to +85°C
See Curves
Supply Voltage between VS+ and VS-
Input Voltage
+18V
VS- - 0.5V, VS +0.5V
30mA
ESD Voltage
2kV
Maximum Continuous Output Current
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: TJ = TC = TA
Electrical Characteristics
VS+= +5V, VS - = -5V, RL = 10kW and CL = 10pF to 0V, TA = 25°C unless otherwise specified.
Parameter
Description
Condition
Min
Typ
Max
12
Unit
Input Characteristics
VOS
Input Offset Voltage
VCM = 0V
[1]
2
5
mV
µV/°C
nA
TCVOS
IB
Average Offset Voltage Drift
Input Bias Current
VCM = 0V
2
50
RIN
Input Impedance
1
GW
pF
CIN
Input Capacitance
1.35
CMIR
CMRR
AVOL
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
-5.5
50
+5.5
V
for VIN from -5.5V to +5.5V
70
95
dB
-4.5V £ VOUT £ +4.5V
75
dB
Output Characteristics
VOL
VOH
ISC
Output Swing Low
IL = -5mA
IL = 5mA
-4.92
4.92
±120
±30
-4.85
V
V
Output Swing High
Short Circuit Current
Output Current
4.85
60
mA
mA
IOUT
Power Supply Performance
PSRR
IS
Power Supply Rejection Ratio
Supply Current (Per Amplifier)
VS is moved from ±2.25V to ±7.75V
No load
80
dB
500
750
µA
Dynamic Performance
SR
Slew Rate [2]
-4.0V £ VOUT £ +4.0V, 20% to 80%
(AV = +1), VO = 2V step
RL = 10kW, CL = 10pF
RL = 10kW, CL = 10pF
RL = 10kW, CL = 10 pF
f = 5MHz
10
500
12
8
V/µs
ns
tS
Settling to +0.1% (AV = +1)
-3dB Bandwidth
BW
GBWP
PM
CS
MHz
MHz
°
Gain-Bandwidth Product
Phase Margin
50
75
Channel Separation
dB
1. Measured over operating temperature range
2. Slew rate is measured on rising and falling edges
2
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Electrical Characteristics
VS+ = 5V, VS-= 0V, RL = 10kW and CL = 10pF to 2.5V, TA = 25°C unless otherwise specified.
Parameter
Description
Condition
Min
Typ
Max
10
Unit
Input Characteristics
VOS
Input Offset Voltage
VCM = 2.5V
[1]
2
5
mV
µV/°C
nA
TCVOS
IB
Average Offset Voltage Drift
Input Bias Current
VCM = 2.5V
2
50
RIN
Input Impedance
1
GW
pF
CIN
Input Capacitance
1.35
CMIR
CMRR
AVOL
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
-0.5
45
+5.5
150
V
for VIN from -0.5V to +5.5V
66
95
dB
0.5V £ VOUT £+ 4.5V
75
dB
Output Characteristics
VOL
VOH
ISC
Output Swing Low
IL = -5mA
IL = +5mA
80
mV
V
Output Swing High
Short Circuit Current
Output Current
4.85
60
4.92
±120
±30
mA
mA
IOUT
Power Supply Performance
PSRR
IS
Power Supply Rejection Ratio
Supply Current (Per Amplifier)
VS is moved from 4.5V to 15.5V
No load
80
dB
500
750
µA
Dynamic Performance
SR
Slew Rate [2]
1V £ VOUT £ 4V, 20% to 80%
(AV = +1), VO = 2V step
RL = 10kW, CL = 10pF
RL = 10 kW, CL = 10pF
RL = 10 kW, CL = 10 pF
f = 5MHz
10
500
12
8
V/µs
ns
tS
Settling to +0.1% (AV = +1)
-3dB Bandwidth
BW
GBWP
PM
CS
MHz
MHz
°
Gain-Bandwidth Product
Phase Margin
50
75
Channel Separation
dB
1. Measured over operating temperature range
2. Slew rate is measured on rising and falling edges
Electrical Characteristics
VS+ = 15V, VS- = 0V, RL = 10kW and CL = 10pF to 7.5V, TA = 25°C unless otherwise specified.
Parameter
Description
Condition
Min
Typ
Max
14
Unit
Input Characteristics
VOS
Input Offset Voltage
VCM = 7.5V
[1]
2
5
mV
µV/°C
nA
TCVOS
IB
Average Offset Voltage Drift
Input Bias Current
VCM = 7.5V
2
50
RIN
Input Impedance
1
GW
pF
CIN
Input Capacitance
1.35
CMIR
CMRR
AVOL
Common-Mode Input Range
Common-Mode Rejection Ratio
Open-Loop Gain
-0.5
53
+15.5
150
V
for VIN from -0.5V to +15.5V
72
95
dB
0.5V £ VOUT £ 14.5V
75
dB
Output Characteristics
VOL
VOH
Output Swing Low
Output Swing High
IL = -5mA
IL = +5mA
80
mV
V
14.85
14.92
3
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Electrical Characteristics (Continued)
VS+ = 15V, VS- = 0V, RL = 10kW and CL = 10pF to 7.5V, TA = 25°C unless otherwise specified.
Parameter
ISC
IOUT
Power Supply Performance
Description
Short Circuit Current
Output Current
Condition
Min
Typ
±120
±30
Max
Unit
mA
mA
PSRR
IS
Power Supply Rejection Ratio
Supply Current (Per Amplifier)
VS is moved from 4.5V to 15.5V
No load
60
80
dB
500
750
µA
Dynamic Performance
SR
Slew Rate [2]
1V £ VOUT £ 14V, 20% to 80%
(AV = +1), VO = 2V step
RL = 10kW, CL = 10pF
RL = 10kW, CL = 10pF
RL = 10kW, CL = 10 pF
f = 5MHz
10
500
12
8
V/µs
ns
tS
Settling to +0.1% (AV = +1)
-3dB Bandwidth
BW
GBWP
PM
CS
MHz
MHz
°
Gain-Bandwidth Product
Phase Margin
50
75
Channel Separation
dB
1. Measured over operating temperature range
2. Slew rate is measured on rising and falling edges
Connection Diagrams (Continued)
VINA-
VINA+
VS+
1
2
3
4
12 VIND-
11 VIND+
10 VS-
Thermal Pad
9
VINC+
VINB+
EL5420C
(16-Pin LPP)
4
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Typical Performance Curves
EL5420C Input Offset Voltage Drift
EL5420C Input Offset Voltage Distribution
70
1800
Typical
Production
Distribution
Typical
Production
Distribution
V =±5V
S
V =±5V
T =25°C
A
S
1600
1400
1200
1000
800
600
400
200
0
60
50
40
30
20
10
0
Input Offset Voltage Drift, TCV (µV/°C)
OS
Input Offset Voltage (mV)
Input Offset Voltage vs Temperature
Input Bias Current vs Temperature
10
5
2.0
0.0
V =±5V
S
V =±5V
S
0
-5
-2.0
-50
0
50
100
150
-50
0
50
100
150
Temperature (°C)
Temperature (°C)
Output High Voltage vs Temperature
Output Low Voltage vs Temperature
4.97
4.96
4.95
4.94
4.93
-4.91
-4.92
-4.93
-4.94
-4.95
-4.96
-4.97
V =±5V
S
V =±5V
S
I
=5mA
OUT
I
=-5mA
OUT
-50
0
50
100
150
-50
0
50
100
150
Temperature (°C)
Temperature (°C)
5
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Typical Performance Curves
Slew Rate vs Temperature
Open-Loop Gain vs Temperature
10.40
10.35
10.30
10.25
100
V =±5V
S
V =±5V
S
R =10kW
L
90
80
-50
0
50
100
150
-50
0
50
100
150
Temperature (°C)
Temperature (°C)
EL5420C Supply Current per Amplifier vs Supply Voltage
EL5420C Supply Current per Amplifier vs Temperature
700
600
500
400
300
T =25°C
A
0.55
0.5
V =±5V
S
0.45
-50
0
50
100
150
0
5
10
15
20
Temperature (°C)
Supply Voltage (V)
Frequency Response for Various R
Open Loop Gain and Phase vs Frequency
L
5
0
200
150
100
50
20
10kW
1kW
-30
Phase
-80
560W
150W
C =10pF
L
-5
A =1
V
V =±5V
S
-130
-180
-230
V =±5V, T =25°C
S
A
R =10KW to GND
-10
L
0
C =12pF to GND
L
Gain
-15
-50
100k
1M
10M
100M
10
100
1k
10k
100k
1M
10M 100M
Frequency (Hz)
Frequency (Hz)
6
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Typical Performance Curves
Frequency Response for Various C
L
Closed Loop Output Impedance vs Frequency
20
200
R =10kW
L
A =1
V
10
0
A =1
160
120
80
40
0
V
V =±5V
S
V =±5V
S
T =25°C
A
12pF
50pF
-10
-20
-30
100pF
1000pF
100k
1M
10M
100M
10k
100
1M
10M
Frequency (Hz)
Frequency (Hz)
Maximum Output Swing vs Frequency
CMRR vs Frequency
80
60
40
20
0
12
10
8
6
V =±5V
S
T =25°C
A
4
A =1
V
R =10kW
L
V =±5V
T =25°C
A
S
2
C =12pF
L
Distortion <1%
0
10k
1k
10k
100k
100
1M
10M
100
1M
10M
Frequency (Hz)
Frequency (Hz)
Input Voltage Noise Spectral Density vs Frequency
PSRR vs Frequency
PSRR+
600
100
80
60
40
20
0
PSRR-
10
V =±5V
T =25°C
A
S
1
100
1k
10k
100k
1M
10M
100M
1k
10k
100k
1M
100
10M
Frequency (Hz)
Frequency (Hz)
7
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Typical Performance Curves
Total Harmonic Distortion + Noise vs Frequency
Channel Separation vs Frequency Response
0.010
0.009
0.008
0.007
0.006
0.005
0.004
-60
-80
Dual measured Channel A to B
Quad measured Channel A to D or B to C
Other combinations yield improved rejection
V =±5V
S
R =10kW
L
A =1
V
V
IN
=220mV
RMS
-100
-120
-140
V =±5V
S
R =10kW
0.003
0.002
0.001
L
A =1
V
V
IN
=1V
RMS
1k
10k
100k
1k
10k
100k
1M
6M
Frequency (Hz)
Frequency (Hz)
Settling Time vs Step Size
Small-Signal Overshoot vs Load Capacitance
V =±5V
S
V =±5V
S
90
70
50
30
10
4
3
A =1
A =1
V
V
R =10kW
R =10kW
L
L
C =12pF
V =±50mV
IN
L
0.1%
2
T =25°C
A
T =25°C
A
1
0
-1
-2
-3
-4
0.1%
600
0
200
400
800
10
100
1000
Load Capacitance (pF)
Settling Time (nS)
Large Signal Transient Response
Small Signal Transient Response
1V
1µS
50mV
200ns
V =±5V
S
T =25°C
A
A =1
V
R =10kW
L
C =12pF
L
V =±5V
S
T =25°C
A
A =1
V
R =10kW
L
C =12pF
L
8
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Pin Descriptions
EL5420C
EL5220C
Pin Name
Pin Function
Amplifier A Output
Equivalent Circuit
1
1
VOUTA
V
S+
V
S-
GND
Circuit 1
2
2
VINA-
Amplifier A Inverting Input
V
S+
V
S-
Circuit 2
3
4
3
8
5
6
7
VINA+
VS+
Amplifier A Non-Inverting Input
Positive Power Supply
(Reference Circuit 2)
5
VINB+
VINB-
VOUTB
VOUTC
VINC-
VINC+
VS-
Amplifier B Non-Inverting Input
Amplifier B Inverting Input
Amplifier B Output
(Reference Circuit 2)
(Reference Circuit 2)
(Reference Circuit 1)
(Reference Circuit 1)
(Reference Circuit 2)
(Reference Circuit 2)
6
7
8
Amplifier C Output
9
Amplifier C Inverting Input
Amplifier C Non-Inverting Input
Negative Power Supply
10
11
12
13
14
4
VIND+
VIND-
VOUTD
Amplifier D Non-Inverting Input
Amplifier D Inverting Input
Amplifier D Output
(Reference Circuit 2)
(Reference Circuit 2)
(Reference Circuit 1)
9
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
Applications Information
Product Description
The EL5220C and EL5420C voltage feedback amplifi-
ers are fabricated using a high voltage CMOS process.
They exhibit rail-to-rail input and output capability, they
are unity gain stable, and have low power consumption
(500µA per amplifier). These features make the
EL5220C and EL5420C ideal for a wide range of gen-
eral-purpose applications. Connected in voltage follower
mode and driving a load of 10kW and 12pF, the
EL5220C and EL5420C have a -3dB bandwidth of
12MHz while maintaining a 10V/µs slew rate. The
EL5220C is a dual amplifier while the EL5420C is a
quad amplifier.
V =±5V
S
T =25°C
A
A =1
V
V =10V
IN
P-P
Figure 1. Operation with Rail-to-Rail Input and
Output
Operating Voltage, Input, and Output
Short Circuit Current Limit
The EL5220C and EL5420C are specified with a single
nominal supply voltage from 5V to 15V or a split supply
with its total range from 5V to 15V. Correct operation is
guaranteed for a supply range of 4.5V to 16.5V. Most
EL5220C and EL5420C specifications are stable over
both the full supply range and operating temperatures of
-40 °C to +85 °C. Parameter variations with operating
voltage and/or temperature are shown in the typical per-
formance curves.
The EL5220C and EL5420C will limit the short circuit
current to ±120mA if the output is directly shorted to the
positive or the negative supply. If an output is shorted
indefinitely, the power dissipation could easily increase
such that the device may be damaged. Maximum reli-
ability is maintained if the output continuous current
never exceeds ±30 mA. This limit is set by the design of
the internal metal interconnects.
Output Phase Reversal
The input common-mode voltage range of the EL5220C
and EL5420C extends 500mV beyond the supply rails.
The output swings of the EL5220C and EL5420C typi-
cally extend to within 80mV of positive and negative
supply rails with load currents of 5mA. Decreasing load
currents will extend the output voltage range even closer
to the supply rails. Figure 1 shows the input and output
waveforms for the device in the unity-gain configura-
tion. Operation is from ±5V supply with a 10kW load
connected to GND. The input is a 10VP-P sinusoid. The
The EL5220C and EL5420C are immune to phase rever-
sal as long as the input voltage is limited from (VS-) ----
-0.5V to (VS+) +0.5V. Figure 2 shows a photo of the
output of the device with the input voltage driven
beyond the supply rails. Although the device's output
will not change phase, the input's overvoltage should be
avoided. If an input voltage exceeds supply voltage by
more than 0.6V, electrostatic protection diodes placed in
the input stage of the device begin to conduct and over-
voltage damage could occur.
output voltage is approximately 9.985VP-P
.
10
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
when sourcing, and:
1V
100µs
P
= Si ´ [V ´ I
+ (V
i – V -) ´ I
i]
LOAD
DMAX
S
SMAX
OUT
S
when sinking.
where
V =±2.5V
S
i = 1 to 2 for Dual and 1 to 4 for Quad
VS = Total Supply Voltage
T =25°C
A
A =1
V
V
IN
=6V
P-P
1V
ISMAX = Maximum Supply Current Per Amplifier
VOUTi = Maximum Output Voltage of the Application
ILOADi = Load Current
Figure 2. Operation with Beyond-the-Rails
Input
If we set the two PDMAX equations equal to each other,
we can solve for RLOADi to avoid device overheat. Fig-
ures 3, 4, and 5 provide a convenient way to see if the
device will overheat. The maximum safe power dissipa-
tion can be found graphically, based on the package type
and the ambient temperature. By using the previous
equation, it is a simple matter to see if PDMAX exceeds
the device's power derating curves. To ensure proper
operation, it is important to observe the recommended
derating curves in Figures 3, 4, and 5.
Power Dissipation
With the high-output drive capability of the EL5220C
and EL5420C amplifiers, it is possible to exceed the
125°C “absolute-maximum junction temperature” under
certain load current conditions. Therefore, it is important
to calculate the maximum junction temperature for the
application to determine if load conditions need to be
modified for the amplifier to remain in the safe operating
area.
JEDEC JESD51-7 High Effective Thermal Conductivity (4-
Layer) Test Board
LPP exposed diepad soldered to PCB per JESD51-5
1200
The maximum power dissipation allowed in a package is
determined according to:
T
– T
MAX T =125°C
J
JMAX
AMAX
1.136W
1.0W
------------------------------------------------
P
=
1000
DMAX
Q
TSSOP14
=100°C/W
JA
q
JA
800 870mW
where:
SO14
q
=88°C/W
JA
600
400
200
TJMAX = Maximum Junction Temperature
TAMAX= Maximum Ambient Temperature
qJA = Thermal Resistance of the Package
MSOP8
=115°C/W
q
JA
PDMAX = Maximum Power Dissipation in the Package
0
0
25
50
75 85 100
125
150
The maximum power dissipation actually produced by
an IC is the total quiescent supply current times the total
power supply voltage, plus the power in the IC due to the
loads, or:
Ambient Temperature (°C)
Figure 3. Package Power Dissipation vs
Ambient Temperature
P
= Si ´ [V ´ I
+ (V + – V
i) ´ I
i]
LOAD
DMAX
S
SMAX
S
OUT
11
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
the peaking increase. The amplifiers drive 10pF loads in
parallel with 10kW with just 1.5dB of peaking, and
100pF with 6.4dB of peaking. If less peaking is desired
in these applications, a small series resistor (usually
between 5W and 50W) can be placed in series with the
output. However, this will obviously reduce the gain
slightly. Another method of reducing peaking is to add a
“snubber” circuit at the output. A snubber is a shunt load
consisting of a resistor in series with a capacitor. Values
of 150W and 10nF are typical. The advantage of a snub-
ber is that it does not draw any DC load current or
reduce the gain
JEDEC JESD51-3 and SEMI G42-88 (Single Layer) Test
Board
1200
MAX T =125°C
J
1000
800
600
400
200
0
SO14
=120°C/W
833mW
667mW
q
JA
LPP16
=150°C/W
q
JA
606mW
485mW
TSSOP14
=165°C/W
q
JA
MSOP8
=206°C/W
q
JA
0
25
50
75 85 100
125
150
Power Supply Bypassing and Printed Circuit
Board Layout
Ambient Temperature (°C)
Figure 4. Package Power Dissipation vs
Ambient Temperature
The EL5220C and EL5420C can provide gain at high
frequency. As with any high-frequency device, good
printed circuit board layout is necessary for optimum
performance. Ground plane construction is highly rec-
ommended, lead lengths should be as short as possible
and the power supply pins must be well bypassed to
reduce the risk of oscillation. For normal single supply
operation, where the VS- pin is connected to ground, a
0.1µF ceramic capacitor should be placed from VS+ to
pin to VS- pin. A 4.7µF tantalum capacitor should then
be connected in parallel, placed in the region of the
amplifier. One 4.7µF capacitor may be used for multiple
devices. This same capacitor combination should be
placed at each supply pin to ground if split supplies are
to be used.
JEDEC JESD51-7 High Effective Thermal Conductivity (4-
Layer) Test Board
(LPP exposed diepad soldered to PCB per JESD51-5)
3
2.500W
2.5
2
1.5
1
0.5
0
0
25
50
75 85 100
125
150
Ambient Temperature (°C)
Figure 5. Package Power Dissipation vs
Ambient Temperature
Unused Amplifiers
It is recommended that any unused amplifiers in a dual
and a quad package be configured as a unity gain fol-
lower. The inverting input should be directly connected
to the output and the non-inverting input tied to the
ground plane.
Driving Capacitive Loads
The EL5220C and EL5420C can drive a wide range of
capacitive loads. As load capacitance increases, how-
ever, the -3dB bandwidth of the device will decrease and
12
EL5220C, EL5420C
12MHz Rail-to-Rail Input-Output Op Amps
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir-
cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described
herein and makes no representations that they are free from patent infringement.
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to sup-
port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
expected to result in significant personal injury or death. Users con-
templating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elan-
tec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
Fax:
(408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
Printed in U.S.A.
13
EL5420CS-T13 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| EL5420CS-T7 | ELANTEC | 12MHz Rail-to-Rail Input-Output Op Amps | 获取价格 |
|
| EL5420CS-T7 | INTERSIL | 12MHz Rail-to-Rail Input-Output Op Amps | 获取价格 |
|
| EL5420CSZ | INTERSIL | 12MHz Rail-to-Rail Input-Output Op Amps | 获取价格 |
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| EL5420CSZ-T13 | INTERSIL | 12MHz Rail-to-Rail Input-Output Op Amps | 获取价格 |
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| EL5420CSZ-T7 | INTERSIL | 12MHz Rail-to-Rail Input-Output Op Amps | 获取价格 |
|
| EL5420T | INTERSIL | 12MHz Rail-to-Rail Input-Output Operational Amplifier | 获取价格 |
|
| EL5420T | RENESAS | 12MHz Rail-to-Rail Input-Output Operational Amplifier | 获取价格 |
|
| EL5420TILZ | INTERSIL | 12MHz Rail-to-Rail Input-Output Operational Amplifier | 获取价格 |
|
| EL5420TILZ | RENESAS | 12MHz Rail-to-Rail Input-Output Operational Amplifier; QFN16, SOIC14, TSSOP14; Temp Range: -40&deg; to 85&deg;C | 获取价格 |
|
| EL5420TILZ-T13 | RENESAS | 12MHz Rail-to-Rail Input-Output Operational Amplifier; QFN16, SOIC14, TSSOP14; Temp Range: -40&deg; to 85&deg;C | 获取价格 |
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