®
EL2150, EL2157
Data Sheet
March 12, 2004
FN7050.1
125MHz Single Supply, Clamping Op
Amps
The EL2150 and EL2157 are the
electronics industry's fastest single
supply op amps available. Prior single
supply op amps have generally been limited to bandwidths
and slew rates ¼ that of the EL2150 and EL2157. The
125MHz bandwidth, 275V/µs slew rate, and 0.05%/0.05°
differential gain/differential phase makes this part ideal for
single or dual supply video speed applications. With its
voltage feedback architecture, these amplifiers can accept
reactive feedback networks, allowing them to be used in
analog filtering applications. The inputs can sense signals
below the bottom supply rail and as high as 1.2V below the
top rail. Connecting the load resistor to ground and operating
from a single supply, the outputs swing completely to ground
without saturating. The outputs can also drive to within 1.2V
of the top rail. The EL2150 and EL2157 will output ±100mA
and will operate with single supply voltages as low as 2.7V,
making them ideal for portable, low power applications.
The EL2157 has a high speed disable feature. Applying a
low logic level to this pin reduces the supply current to 0µA
within 50ns. This is useful for both multiplexing and reducing
power consumption.
The EL2157 also has an output voltage clamp feature. This
clamp is a fast recovery (<7ns) output clamp that prevents
the output voltage from going above the preset clamp
voltage. This feature is desirable for A/D applications, as A/D
converters can require long times to recover if overdriven.
For applications where board space is critical the EL2150 is
available in the tiny 5-pin SOT-23 package, which has a
footprint 28% the size of an 8-pin SO. The EL2150 and
EL2157 are both available in an 8-pin SO package. All parts
operate over the industrial temperature range of -40°C to
+85°C. For dual, triple, or quad applications, contact the
factory.
Features
• Specified for 3V, 5V, or ±5V applications
• Power-down to 0µA (EL2157)
• Output voltage clamp (EL2157)
• Large input common mode range
0V < V
CM
< V
S
- 1.2V
• Output swings to ground without saturating
• -3dB bandwidth = 125MHz
• ±0.1dB bandwidth = 30MHz
• Low supply current = 5mA
• Slew rate = 275V/µs
• Low offset voltage = 2mV max (SO package)
• Output current = ±100mA
• High open loop gain = 80dB
• Diff gain/phase = 0.05%/0.05°
Applications
• Video amplifiers
• PCMCIA applications
• A/D drivers
• Line drivers
• Portable computers
• High speed communications
• RGB applications
• Broadcast equipment
• Active filtering
Ordering Information
PART NUMBER
EL2150CS
EL2150CS-T7
EL2150CS-T13
EL2150CW-T7
EL2150CW-T7A
EL2157CS
EL2157CS-T7
EL2157CS-T13
PACKAGE
8-Pin SO
8-Pin SO
8-Pin SO
5-Pin SOT-23
5-Pin SOT-23
8-Pin SO
8-Pin SO
8-Pin SO
TAPE & REEL PKG. DWG. #
-
7”
13”
7” (3K pcs)
7” (250 pcs)
-
7”
13”
MDP0027
MDP0027
MDP0027
MDP0038
MDP0038
MDP0027
MDP0027
MDP0027
1
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. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL2150, EL2157
Absolute Maximum Ratings
(T
A
= 25°C)
Supply Voltage between V
S
+ and GND . . . . . . . . . . . . . . . . +12.6V
Input Voltage (IN+, IN-, ENABLE, CLAMP) . . . GND-0.3V, V
S
+0.3V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±6V
Maximum Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90mA
Output Short Circuit Duration. . . . . . . . . . . . . . . . . . . . . . . . (Note 1)
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Operating Temperature Range . . . . . . . . . .-40°C to +85°C
Operating Junction 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. 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
PARAMETER
V
OS
V
S
= +5V, GND = 0V, T
A
= 25°C, V
CM
= 1.5V, V
OUT
= 1.5V, V
CLAMP
= +5V, V
ENABLE
= +5V, unless
otherwise specified. (Note 1)
CONDITIONS
SO package
SOT-23 package
MIN
-2
-3
10
-5.5
-750
150
50
55
55
55
0
Common mode
SO package
A
V
= 1
V
S
= V
CLAMP
= 12V, V
ENABLE
= 12V
V
S
= V
CLAMP
= 10V, V
ENABLE
= 0.5V
V
S
= V
CLAMP
= 12V, V
ENABLE
= 0.5V
1
2
1
40
5
0
5
2.7
V
S
= V
CLAMP
= 12V, V
OUT
= 2V
9V, R
L
= 1kΩ to GND
V
OUT
= 1.5V to 3.5V
R
L
= 1kΩ to GND
V
OUT
= 1.5V to 3.5V
R
L
= 150Ω to GND
60
dB
70
dB
65
80
12.0
6.5
50
70
65
70
V
S
-1.2
-10
750
TYP
MAX
2
3
UNIT
mV
mV
µV/°C
µA
nA
nA/°C
dB
dB
dB
V
MΩ
pF
mΩ
mA
µA
µA
V
dB
DESCRIPTION
Offset Voltage
TCV
OS
IB
I
OS
TCI
OS
PSRR
CMRR
Offset Voltage Temperature
Coefficient
Input Bias Current
Input Offset Current
Input Bias Current Temperature
Coefficient
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Measured from T
MIN
to T
MAX
V
IN
= 0V
V
IN
= 0V
Measured from T
MIN
to T
MAX
V
S
= V
ENABLE
= 2.7V to 12V, V
CLAMP
=
OPEN
V
CM
= 0V to 3.8V
V
CM
= 0V to 3.0V
CMIR
R
IN
C
IN
R
OUT
I
S,ON
I
S,OFF
Common Mode Input Range
Input Resistance
Input Capacitance
Output Resistance
Supply Current - Enabled
Supply Current - Shut Down
PSOR
AVOL
Power Supply Operating Range
Open Loop Gain
V
OP
Positive Output Voltage Swing
V
S
= 12V, A
V
= 1, R
L
= 1kΩ to 0V
V
S
= 12V, A
V
= 1, R
L
= 150Ω to 0V
V
S
= ±5V, A
V
= 1, R
L
= 1kΩ to 0V
V
S
= ±5V, A
V
= 1, R
L
= 150Ω to 0V
V
S
= 3V, A
V
= 1, R
L
= 150Ω to 0V
3.4
1.8
9.6
10.8
10.0
4.0
3.8
1.95
V
V
V
V
V
3
EL2150, EL2157
DC Electrical Specifications
PARAMETER
V
ON
V
S
= +5V, GND = 0V, T
A
= 25°C, V
CM
= 1.5V, V
OUT
= 1.5V, V
CLAMP
= +5V, V
ENABLE
= +5V, unless
otherwise specified. (Note 1)
(Continued)
DESCRIPTION
Negative Output Voltage Swing
CONDITIONS
V
S
= 12V, A
V
= 1, R
L
= 150Ω to 0V
V
S
= ±5V, A
V
= 1, R
L
= 1kΩ to 0V
V
S
= ±5V, A
V
= 1, R
L
= 150Ω to 0V
I
OUT
Output Current (Note 2)
V
S
= ±5V, A
V
= 1, R
L
= 10Ω to 0V
V
S
= ±5V, A
V
= 1, R
L
= 50Ω to 0V
I
OUT,OFF
V
IH-EN
V
IL-EN
I
IH-EN
I
IL-EN
V
OR-CL
V
ACC-CL
Output Current, Disabled
ENABLE pin Voltage for Power Up
V
ENABLE
= 0.5V
Relative to GND pin
2.0
0.5
340
0
1.2
-250
100
410
1
V
OP
250
±75
MIN
TYP
5.5
-4.0
-3.7
±100
±60
0
20
-3.4
MAX
8
UNIT
mV
V
V
mA
mA
µA
V
V
µA
µA
V
mV
ENABLE pin Voltage for Shut Down Relative to GND pin
ENABLE pin Input Current-High
(Note 3)
ENABLE pin Input Current-Low
(Note 3)
Voltage Clamp Operating Range
(Note 4)
CLAMP Accuracy
V
S
= V
CLAMP
= 12V, V
ENABLE
= 12V
V
S
= V
CLAMP
= 12V, V
ENABLE
= 0.5V
Relative to GND pin
V
IN
= 4V, R
L
= 1kΩ to GND
V
CLAMP
= 1.5V and 3.5V
I
IH-CL
I
IL-CL
NOTES:
CLAMP pin Input Current - High
CLAMP pin Input Current - Low
V
S
= V
CLAMP
= 12V
V
S
= 12V, V
CLAMP
= 1.2V
-20
12
-15
25
µA
µA
1. CLAMP pin and ENABLE pin specifications apply only to the EL2157.
2. Internal short circuit protection circuitry has been built into the EL2150/EL2157. See the Applications section.
3. If the disable feature is not desired, tie the ENABLE pin to the V
S
pin, or apply a logic high level to the ENABLE pin.
4. The maximum output voltage that can be clamped is limited to the maximum positive output Voltage, or V
OP
. Applying a voltage higher than
V
OP
inactivates the clamp. If the clamp feature is not desired, either tie the CLAMP pin to the V
S
pin, or simply let the CLAMP pin float.
4
EL2150, EL2157
Closed Loop AC Electrical Specifications
V
S
= +5V, GND = 0V, T
A
= 25°C, V
CM
= +1.5V, V
OUT
= +1.5V, V
CLAMP
= +5V,
V
ENABLE
= +5V, A
V
= +1, R
F
= 0Ω, R
L
= 150Ω to GND pin, unless otherwise specified.
(Notes 1 and 2)
PARAMETER
BW
DESCRIPTION
-3dB Bandwidth (V
OUT
= 400mV
P-P
)
CONDITIONS
V
S
= 5V, A
V
= 1, R
F
= 0Ω
V
S
= 5V, A
V
= -1, R
F
= 500Ω
V
S
= 5V, A
V
= 2, R
F
= 500Ω
V
S
= 5V, A
V
= 10, R
F
= 500Ω
V
S
= 12V, A
V
= 1, R
F
= 0Ω
V
S
= 3V, A
V
= 1, R
F
= 0Ω
BW
±0.1dB Bandwidth (V
OUT
= 400mV
P-P
) V
S
= 12V, A
V
= 1, R
F
= 0Ω
V
S
= 5V, A
V
= 1, R
F
= 0Ω
V
S
= 3V, A
V
= 1, R
F
= 0Ω
GBWP
PM
SR
Gain Bandwidth Product
Phase Margin
Slew Rate
V
S
= 12V, @ A
V
= 10
R
L
= 1kΩ, C
L
= 6 pF
V
S
= 10V, R
L
= 150Ω, V
OUT
= 0V to 6V
V
S
= 5V, R
L
= 150Ω, V
OUT
= 0V to 3V
t
R
,t
F
OS
t
PD
t
S
Rise Time, Fall Time
Overshoot
Propagation Delay
0.1% Settling Time
0.01% Settling Time
dG
dP
e
N
i
N
t
DIS
t
EN
t
CL
NOTES:
1. CLAMP pin and ENABLE pin specifications apply only to the EL2157.
2. All AC tests are performed on a “warmed up” part, except slew rate, which is pulse tested.
3. Standard NTSC signal = 286mV
P-P
, f = 3.58MHz, as V
IN
is swept from 0.6V to 1.314V.R
L
is DC coupled.
4. Disable/Enable time is defined as the time from when the logic signal is applied to the ENABLE pin to when the supply current has reached half
its final value.
Differential Gain (Note 3)
Differential Phase (Note 3)
Input Noise Voltage
Input Noise Current
Disable Time (Note 4)
Enable Time (Note 4)
Clamp Overload Recovery
±0.1V step
±0.1V step
±0.1V step
V
S
= ±5V, R
L
= 500Ω, A
V
= 1, V
OUT
= ±3V
V
S
= ±5V, R
L
= 500Ω, A
V
= 1, V
OUT
= ±3V
A
V
= 2, R
F
= 1kΩ
A
V
= 2, R
F
= 1kΩ
f = 10kHz
f = 10kHz
200
MIN
TYP
125
60
60
6
150
100
25
30
20
60
55
275
300
2.8
10
3.2
40
75
0.05
0.05
48
1.25
50
25
7
MAX
UNIT
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
°
V/µs
V/µs
ns
%
ns
ns
ns
%
°
nV/√Hz
pA/√Hz
ns
ns
ns
5
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