ELANT EL2157CS, EL2157CN, EL2150CW, EL2150CN, EL2150CS Datasheet
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
EL2150C/EL2157C June 1996 Rev B
Features
# Specified fora3V,a5V, or
g
5V Applications
# Power Down to 0 mA (EL2157C)
# Output Voltage Clamp
(EL2157C)
# Large Input Comon Mode Range
0V
k
k
V
CM
Vs - 1.2V
# Output Swings to Ground
Without Saturating
b
#
3 dB Bandwidthe125 MHz
g
#
0.1 dB Bandwidthe30 MHz
# Low Supply Current
# Slew Rate
e
275V/ms
# Low Offset Voltage
e
5mA
e
2mVmax
(PDIP and SO Packages)
e
# Output Current
# High Open Loop Gain
# Differential Gain
# Differential Phase
g
e
e
100 mA
e
0.05%
0.05
80 dB
§
Applications
# Video Amplifier
# PCMCIA Applications
# A/D Driver
# Line Driver
# Portable Computers
# High Speed Communications
# RGB Applications
# Broadcast Equipment
# Active Filtering
General Description
The EL2150C/EL2157C 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 (/4
that of the EL2150C/EL2157C. The 125 MHz bandwidth,
275 V/ms slew rate, and 0.05%/0.05
tial phase makes this part ideal for single or dual supply video
speed applications. With its voltage feedback architecture, this
amplifier 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 EL2150C/EL2157C will output
mA and will operate with single supply voltages as low as 2.7V,
making it ideal for portable, low power applications.
The EL2157C has a high speed disable feature. Applying a low
logic level to this pin reduces the supply current to 0 mA within
50 ns. This is useful for both multiplexing and reducing power
consumption.
The EL2157C also has an output voltage clamp feature. This
clamp is a fast recovery (
k
7 ns) 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 EL2150C is
available in the tiny 5 lead SOT23 package, which has a footprint 28% the size of an 8 lead SOIC. The EL2150C/EL2157C
are also both available in 8 pin plastic DIP and SOIC packages.
All parts operate over the industrial temperature range of
b
40§Ctoa85§C. For dual, triple, or quad applications, contact
the factory.
differential gain/differen-
§
g
100
Ordering Information
Part No. Temp. Range Package Outline
EL2150CNb40§Ctoa85§C 8 Pin PDIP MDP0031
EL2150CSb40§Ctoa85§C 8 Pin SOIC MDP0027
EL2150CWb40§Ctoa85§C 5 Pin SOT23* MDP0038
EL2157CNb40§Ctoa85§C 8 Pin PDIP MDP0031
EL2157CSb40§Ctoa85§C 8 Pin SOIC MDP0027
*See Ordering Information section of
databook.
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.
©
1995 Elantec, Inc.
Ý
Connection Diagrams
EL2150C EL2157C EL2150C
SO, P-DIP SO, P-DIP SOT23-5
Top View
2150– 1
Top View
2150– 2
Top View
2150– 3
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
Absolute Maximum Ratings
Supply Voltage between V
Input Voltage (IN
a
ENABLE, CLAMP) GND
Differential Input Voltage
,INb,
a
S
and GND
b
(T
0.3V, V
A
a
S
e
12.6V
a
g
25§C)
0.3V
6V
Power Dissipation See Curves
Storage Temperature Range
Ambient Operating Temperature Range
b
65§Ctoa150§C
b
40§Ctoa85§C
Operating Junction Temperature 150
§
Maximum Output Current 90 mA
Output Short Circuit Duration (note 1)
Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T
Test Level Test Procedure
I 100% production tested and QA sample tested per QA test plan QCX0002.
II 100% production tested at T
III QA sample tested per QA test plan QCX0002.
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.
V Parameter is typical value at T
T
MAX
and T
per QA test plan QCX0002.
MIN
e
25§C and QA sample tested at T
A
e
25§C for information purposes only.
A
e
25§C,
A
e
e
T
TA.
J
C
DC Electrical Characteristics
(Note 2) V
ea
5V, GNDe0V, T
S
Parameter Description Conditions Min Typ Max
V
OS
TCV
Offset Voltage PDIP and SOIC Packages
Offset Voltage Temperature Coefficient Measured from Tmin to Tmax 10 V mV/§C
OS
IB Input Bias Current V
I
OS
TCI
Input Offset Current V
Input Bias Current Temperature Coefficient Measured from Tmin to Tmax 50 V nA/§C
OS
PSRR Power Supply Rejection Ratio V
CMRR Common Mode Rejection Ratio VCMe0V toa3.8V 55 65 I dB
CMIR Common Mode Input Range 0 V
R
IN
C
IN
R
OUT
I
S,ON
I
S,OFF
Input Resistance Common Mode 1 2 I MX
Input Capacitance SOIC Package 1 V pF
Output Resistance Avea140VmX
Supply CurrentÐEnabled V
Supply CurrentÐShut Down V
PSOR Power Supply Operating Range 2.7 12.0 I v
A
e
25§C, V
CM
e
1.5V, V
e
1.5V, V
OUT
CLAMP
SOT23-5 Package
e
0V
IN
e
0V
IN
e
V
S
ENABLE
e
V
CLAMP
OPEN
ea
5V, V
ea
2.7V toa12V, 55 70 I dB
ENABLE
ea
5V, unless otherwise specified.
b
22ImV
b
33ImV
b
5.5b10 I mA
b
750 150 750 I nA
VCMe0V toa3.0V 55 70 I dB
PDIP Package 1.5 V pF
e
S
e
S
e
V
S
V
CLAMP
V
CLAMP
V
CLAMP
ea
ea
ea
12V, V
10V, V
12V, V
ENABLE
ENABLE
ENABLE
ea
12V 5 6.5 I mA
ea
0.5V 0 50 I mA
ea
0.5V 5 V mA
Test
Level
b
1.2 I V
S
Units
C
TABWIDE
TDis 3.8in
2
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
DC Electrical Characteristics
(Note 2) V
specified
ea
5V, GNDe0V, T
S
Parameter Description Conditions Min Typ Max
A
e
25§C, V
CM
Ð Contd.
ea
1.5V, V
OUT
ea
1.5V, V
CLAMP
ea
5V, V
ENABLE
ea
5V, unless otherwise
Test
Level
Units
PSOR Power Supply Operating Range 2.7 12.0 I V
AVOL Open Loop Gain V
V
OP
V
ON
I
OUT
I
OUT,OFF
V
IH-EN
V
IL-EN
I
IH-EN
I
IL-EN
V
OR-CL
V
ACC-CL
I
IH-CL
I
IL-CL
Positive Output Voltage Swing V
Negative Output Voltage Swing V
Output Current (Note 1) V
Output Current, Disabled V
ENABLE pin Voltage for Power Up Relative to GND pin 2.0 I V
ENABLE pin Voltage for Shut Down Relative to GND pin 0.5 I V
ENABLE pin Input Current-High (Note 3) V
ENABLE pin Input Current-Low (Note 3) V
Voltage Clamp Operating Range (Note 4) Relative to GND pin 1.2 V
CLAMP Accuracy (Note 5) V
CLAMP pin Input CurrentÐHigh V
CLAMP pin Input CurrentÐLow V
e
S
a
9V, R
V
OUT
e
R
L
V
OUT
e
R
L
ea
S
ea
V
S
e
V
S
e
V
S
ea
V
S
ea
S
e
V
S
e
V
S
e
S
e
V
S
ENABLE
e
S
e
S
ea
IN
V
CLAMP
e
S
ea
S
ea
V
CLAMP
L
ea
12V, V
e
1kXto GND
1.5V toa3.5V, 70 V dB
ea
2V to 65 80 I dB
OUT
1kXto GND
ea
1.5V toa3.5V, 60 V dB
150X to GND
12V, A
12V, A
g
5V, A
g
5V, A
3V, A
12V, A
g
5V, A
g
5V, A
g
5V, A
g
5V, A
V
CLAMP
V
CLAMP
V
CLAMP
12V, V
4V, R
ea
ea
V
ea
V
ea
V
ea
V
ea
V
ea
V
ea
V
ea
V
ea
V
ea
V
ea
0.5V 0 20 I mA
ea
ea
e
L
1.5V anda3.5V
ea
CLAMP
e
1, R
1kXto 0V 10.8 V V
L
e
1, R
150X to 0V 9.6 10.0 I V
L
e
1, R
1kXto 0V 4.0 V V
L
e
1, R
150X to 0V 3.4 3.8 I V
L
e
1, R
150X to 0V 1.8 1.95 I V
L
e
1, R
150X to 0V 5.5 8 I mV
L
e
1, R
1kXto 0V
L
e
1, R
150X to 0V
L
e
1, R
10X to 0V
L
e
1, R
50X to 0V
L
12V, V
ENABLE
12V, V
ENABLE
1kXto GND
ea
12V 340 410 I mA
ea
0.5V 0 1 I mA
b
4.0 V V
b
3.7b3.4 I V
g75g
100 I mA
g
60 V mA
OP
b
250 100 250 I mV
12V 12 25 I mA
ea
1.2V
b20b
15 I mA
IV
TDis 5.2in
3
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
Closed Loop AC Electrical Characteristics
(Notes2&6)V
e
0X,R
R
F
ea
5V, GNDe0V, T
S
e
150X to GND pin, unless otherwise specified
L
Parameter Description Conditions Min Typ Max
BW
BW
b
3 dB Bandwidth (V
g
0.1 dB Bandwidth (V
GBWP Gain Bandwidth Product V
PM Phase Margin R
SR Slew Rate V
tR,t
Rise Time, Fall Time
F
OS Overshoot
t
PD
t
S
Propagation Delay
0.1% Settling Time V
0.01% Settling Time V
dG Differential Gain (Note 7) A
dP Differential Phase (Note 7) A
e
i
t
t
t
N
N
DIS
EN
CL
Input Noise Voltage fe10 kHz 48 V nV0Hz
Input Noise Current fe10 kHz 1.25 V pA0Hz
Disable Time (Note 8) 50 V ns
Enable Time (Note 8) 25 V ns
Clamp Overload Recovery 7 V ns
Note 1: Internal short circuit protection circuitry has been built into the EL2150C/EL2157C. See the Applications section.
Note 2: CLAMP pin and ENABLE pin specifications apply only to the EL2157C.
Note 3: If the disable feature is not desired, tie the ENABLE pin to the V
Note 4: The maximum output voltage that can be clamped is limited to the maximum positive output Voltage, or V
Voltage higher than V
or simply let the CLAMP pin float.
inactivates the clamp. If the clamp feature is not desired, either tie the CLAMP pin to the VSpin,
OP
Note 5: The clamp accuracy is affected by V
Note 6: All AC tests are performed on a ‘‘warmed up’’ part, except slew rate, which is pulse tested.
Note 7: Standard NTSC signal
Note 8: 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.
e
OUT
OUT
e
e
e
25§C, V
A
400 mVp-p) V
400 mVp-p) V
and RL. See the Typical Curves Section and the Clamp Accuracy vs. VIN&RLcurve.
IN
ea
1.5V, V
CM
ea
5V, A
S
ea
V
5V, A
S
ea
V
5V, A
S
ea
V
5V, A
S
ea
V
12V, A
S
ea
V
3V, A
S
ea
12V, A
S
ea
V
5V, A
S
ea
V
3V, A
S
ea
12V,@A
S
e
1kX,CLe6pF 55 V
L
ea
10V, R
S
ea
V
5V, R
S
g
0.1V step 2.8 V ns
g
0.1V step 10 V %
g
0.1V step 3.2 V ns
e
g
5V, R
S
e
g
5V, R
S
ea
2, R
V
ea
2, R
V
ea
1.5V, V
OUT
ea
1, R
0X 125 V MHz
V
eb
V
ea
V
ea
V
V
ea
V
V
ea
V
ea
V
L
e
L
e
L
e
L
e
1kX 0.05 V %
F
e
1kX 0.05 V
F
e
F
e
1, R
500X 60 V MHz
F
e
2, R
500X 60 V MHz
F
e
10, R
500X 6 V MHz
F
ea
e
1, R
0X 150 V MHz
F
e
1, R
0X 100 V MHz
F
ea
e
1, R
0X 25 V MHz
F
e
1, R
0X 30 V MHz
F
e
1, R
0X 20 V MHz
F
ea
10 60 V MHz
V
e
150X,V
150X,V
500X,A
500X,A
e
out
e
OUT
ea
V
ea
V
pin, or apply a logic high level to the ENABLE pin.
S
CLAMP
ea
5V, V
ENABLE
ea
0V toa6V 200 275 I V/ms
0V toa3V 300 V V/ms
e
1, V
1, V
g
3V 40 V ns
OUT
e
g
3V 75 V ns
OUT
286 mVp-p, fe3.58MHz, as VIN is swept from 0.6V to 1.314V. RLis DC coupled.
5V, A
Test
Level
. Applying a
OP
ea
V
Units
§
§
1,
TDis 5.1in
4
Typical Performance Curves
Non-Inverting
Frequency Response (Gain) Frequency Response (Phase)
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
Non-Inverting
3 dB Bandwidth vs
Temperature for
Non-Inverting Gains
Inverting Frequency
Response (Gain)
Frequency Response
for Various R
L
Inverting Frequency
Response (Phase)
Frequency Response
for Various C
L
3 dB Bandwidth vs
Temperature for
Inverting Gains
Non-Inverting
Frequency Response vs
Common Mode Voltage
2150– 74
5
EL2150C/EL2157C
125 MHz Single Supply, Clamping Op Amps
Typical Performance Curves
3 dB Bandwidth vs
Supply Voltage for
Non-Inverting Gains A
3 dB Bandwith vs Supply
Voltage for Inverting Gains
Ð Contd.
Frequency Response for
Various Supply Voltages,
ea
1
V
Frequency Response for
Various Supply Voltages,
ea
2
A
V
PSSR and CMRR
vs Frequency
PSRR and CMRR vs
Die Temperature
Open Loop Gain and
Phase vs Frequency
Open Loop Voltage Gain
vs Die Temperature
6
Closed Loop Output
Impedance vs Frequency
2150– 75
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