EL4089C
DC Restored Video Amplifier
Open Loop DC Electrical Characteristics Ð Contd.
e a
25 C
e
g
Provisional Supplies at 15V, Load
1 kX; T
§
A
Test
Parameter
Description
Temp
Min
Typ
Max
Units
Level
Restore Section ÐContd.
a
PSRR
V
Power Supply Rejection Ratio (Note 4)
HOLD Logic Threshold
25 C
§
60
90
II
II
II
II
dB
V
a
25 C
§
0.8
2.0
5
THRESHOLD
@
HOLD Input Current Logic High
a
a
I
I
, Hold
25 C
§
1
5
mA
mA
IH
@
HOLD Input Current Logic Low
, Hold
25 C
§
15
IL
Supply Current
Isy, Hold
e
a
a
Supply Current (HOLD
Supply Current (HOLD
5V)
0V)
25 C
§
4.8
5.0
6.0
6.5
9.0
II
II
mA
mA
e
Isy, Sampling
25 C
§
11.0
Closed Loop AC Electrical Characteristics
e
e
e
e
2, T
A
g
Provisional Supplies at 15V, Load
150X and 15 pF. R and R
300X; A
25 C. (See Note 7 about Test Fixture)
§
f
g
V
Test
Parameter
Description
Min
Typ
Max
Units
Level
Amplifier Section
SR
SR
Slew Rate (Note 5)
500
275
V
V
V/ms
V/ms
g
Slew Rate with 5V Supplies
(Note 5)
b
b
BW
BW
dG
Bandwidth
3 dB
3 dB
60
55
V
V
MHz
MHz
g
5V Supplies
g
Bandwidth
0.1 dB
0.1 dB
25
23
V
V
MHz
MHz
g
g
5V Supplies
e
g
Differential Gain
V
15V
0.02
0.03
V
V
%
%
S
e
g
at 3.58 MHz (Note 6)
V
5V
S
e
g
dPh
Differential Phase
V
15V
0.05
0.06
V
V
§
§
S
e
g
5V
at 3.58 MHz (Note 6)
V
S
Restore Section
SR
Restore Amplifier Slew Rate
(Test Circuit) 20%–80%
25
V
V/ms
T
T
Time to Enable Hold
25
40
V
V
ns
ns
HE
Time to Disable Hold
HD
e
Note 1: For current feedback amplifiers, A
R
/R .
b
OL IN
VOL
e
e
g
Note 3: Measured from S/H Input to amplifier output, while restoring.
g
Note 2: V
10V for V
15V.
CM
S
e
e
g
Note 5: SR measured at 20% to 80% of a 4V pk-pk square wave.
g
Note 4: V is measured at V
4.5V and V
16V, both supplies are changed simultaneously.
OS
S
S
b
a
Note 6: DC offset from 0.714V through 0.714V, ac amplitude is 286 mVp-p, equivalent to 40 ire.
b
Note 7: Test fixture was designed to minimize capacitance at the IN input. A ‘‘good’’ fixture should have less than 2 pF of stray
capacitance to ground at this very sensitive pin. See application notes for further details.
3
ELANTEC [ ELANTEC SEMICONDUCTOR ]
