EL2257C/EL2357C
EL2257C/EL2357C
125 MHz Single Supply, Clamping Op Amps
DC Electrical Characteristics (Continued)
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.
Parameter
V
OP
Description
Positive Output Voltage Swing
Test Conditions
V
S
=+12V, A
V
=+1, R
L
=1 kΩ to 0V
V
S
=+12V, A
V
=+1, R
L
=150Ω to 0V
V
S
=±5V, A
V
=+1, R
L
=1 kΩ to 0V
V
S
=±5V, A
V
=+1, R
L
=150Ω to 0V
V
S
=+3V, A
V
=+1, R
L
=150Ω to 0V
V
ON
Negative Output Voltage Swing
V
S
=+12V, A
V
=+1, R
L
=150Ω to 0V
V
S
=±5V, A
V
=+1, R
L
=1 kΩ to 0V
V
S
=±5V, A
V
=+1, R
L
=150Ω to 0V
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
Output Current
[1]
Min
Typ
10.8
Max
Test
Level
V
I
V
I
I
Units
V
V
V
V
V
mV
V
V
mA
mA
µA
V
V
µA
µA
V
mV
µA
µA
9.6
3.4
1.8
10.0
4.0
3.8
1.95
5.5
-4.0
-3.7
-3.4
8
I
V
I
I
V
V
S
=±5V, A
V
=+1, R
L
=10Ω to 0V
V
S
=±5V, A
V
=+1, R
L
=50Ω to 0V
V
ENABLE
=+0.5V
Relative to GND Pin
Relative to GND Pin
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
=1 kΩ to GND
V
CLAMP
=+1.5V and +3.5V
V
S
=V
CLAMP
=+12V
V
S
=+12V, V
CLAMP
=+1.2V
±75
±100
±60
0
20
0.5
340
0
410
1
V
OP
100
12
250
25
Output Current, Disabled
ENABLE pin Voltage for Power Up
ENABLE pin Voltage for Shut Down
ENABLE pin Input Current-High
ENABLE pin Input Current-Low
Voltage Clamp Operating Range
CLAMP Accuracy
[4]
[2]
[2]
[3]
I
I
I
I
I
I
I
I
I
2.0
1.2
-250
CLAMP pin Input Current - High
CLAMP pin Input Current - Low / Per
Amplifier
-30
-15
1. Internal short circuit protection circuitry has been built into the EL2257C/EL2357C. See the Applications section.
2. If the disable feature is not desired, tie the ENABLE pins to the V
S
pin, or apply a logic high level to the ENABLE pins.
3. 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. The clamp accuracy is affected by V
IN
and R
L
. See the Typical Curves Section and the Clamp Accuracy vs. V
IN
and R
L
curve.
3
ELANTEC [ ELANTEC SEMICONDUCTOR ]
