EL4390CN INTERSIL [Intersil Corporation], EL4390CN Datasheet - Page 3

• Manufacturer Part Number: EL4390CN
• Description: Triple 80MHz Video Amplifier with DC Restore
• Manufacturer: INTERSIL [Intersil Corporation]

Closed-Loop AC Electrical Specifications
NOTES:
These numbers represent the worst case bias current, and
the worst case charging current. Note that to get the full
(2mA+) charging current, the clamp input must have
>250mV of error voltage.
Note that the magnitude of the bias current will decrease as
temperature increases.
The basic droop formula is:
V (droop) = I
and the basic charging formula is:
V (charge) = I
Where I
I
AMPLIFIER SECTION
SR
SR
BW
BW
dG
dθ
RESTORING SECTION
T
T
OUT
1. Test fixture was designed to minimize capacitance at the I
2. SR is measured at 20% to 80% of 4Vpk-pk square wave, with A
3. DC offset from -0.714V to +0.714V, AC amplitude is 286mV
PARAMETER
CAP VALUE
RE
RD
TABLE 1. CHARGE STORAGE CAPACITOR VALUE VS.
this very sensitive pin. See application notes for further details.
(NF)
= (Clamp voltage - IN+ voltage) / 120
100
220
10
22
47
OUT
DROOP AND CHARGING RATES
B+
is:
OUT
× (Line time - Charge time) / capacitor value
Slew Rate (Note 1)
Slew Rate w/ ±5V Supplies (Note 2)
Bandwidth, -3dB, A
±5V Supplies, -3dB
Bandwidth, -0.1dB
±5V Supplies, -0.1dB
Differential Gain at 3.58MHz
at ±5V Supplies (Note 3)
Differential Phase at 3.58MHz
at ±5V Supplies (Note 3)
Time to Enable Restore
Time to Disable Restore
DROOP IN
60µS (MV)
× Charge time / capacitor value
13.6
1.36
6.4
3.0
30
3
CHARGE IN
2µS (MV)
V
= 1
400
182
85
40
18
DESCRIPTION
CHARGE IN
4µS (MV)
800
364
170
80
36
Supplies at ±15V, Load = 150Ω and 15pF, T
N
- input. A “good” fixture should have less than 2pF of stray capacitance to ground at
P-P
EL4390
, equivalent to 40 ire.
V
= 5, R
F
= 820Ω, R
G
MIN
= 200Ω.
A
= 25°C (Note 1)
TYP
0.02
0.02
0.03
0.06
800
550
95
72
20
14
35
35
MAX
UNITS
MHz
MHz
MHz
MHz
V/µs
V/µs
(°)
(°)
ns
ns
%
%