
3
FN3990.9
April 25, 2013
AC Test Circuit
NOTE: CL = CX + Test Fixture Capacitance.
PC Board Layout
The frequency response of this circuit depends greatly on the
care taken in designing the PC board. The use of low
inductance components such as chip resistors and chip
capacitors is strongly recommended, while a solid ground
plane is a must!
Attention should be given to decoupling the power supplies.
A large value (10
μF) tantalum in parallel with a small value
(0.1
μF) chip capacitor works well in most cases.
Keep input and output traces as short as possible, because
trace inductance and capacitance can easily become the
performance limiting items.
-3dB Bandwidth
RS =82Ω, CL = 10pF
25
-
480
-
MHz
RS =43Ω, CL = 15pF
25
-
380
-
MHz
RS =36Ω, CL = 21pF
25
-
370
-
MHz
±0.1dB Flat Bandwidth
RS =82Ω, CL = 10pF
25
-
250
-
MHz
RS =43Ω, CL = 15pF
25
-
175
-
MHz
RS =36Ω, CL = 21pF
25
-
170
-
MHz
Input Resistance
Full
200
400
-
k
Ω
Input Capacitance
Full
-
1.0
-
pF
Enabled Output Resistance
Full
-
15
-
Ω
Disabled Output Capacitance
VEN = 0.8V
Full
-
2.0
-
pF
Differential Gain (Note 3)
4.43MHz
25
-
0.01
0.02
%
Differential Phase (Note 3)
4.43MHz
25
-
0.01
0.02
Degrees
Off Isolation
1VP-P, 100MHz,
VEN = 0.8V, RL =10Ω
Full
-
85
-
dB
Slew Rate (1.5VP-P, +SR/-SR)
RS =82Ω, CL = 10pF
25
-
1750/1770
-
V/
μs
RS =43Ω, CL = 15pF
25
-
1460/1360
-
V/
μs
RS =36Ω, CL = 21pF
25
-
1410/1360
-
V/
μs
Total Harmonic Distortion (Note 3)
Full
-
0.01
0.1
%
Disabled Output Resistance
Full
-
12
-
M
Ω
NOTE:
6. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.
Electrical Specifications VSUPPLY = ±5V, RL = 10kΩ, VEN = 2.0V, Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP. (°C)
MIN
TYP
MAX
UNITS
500
Ω
400
Ω
510
Ω
75
Ω
VOUT
VIN
75
Ω
RS
HA4600
HFA1100
+
-
CX
10k
Ω
HA4600