1 GHz, Lo w -P o w e r, S OT2 3 ,
Cu rre n t -Fe e d b a c k Am p lifie rs w it h S h u t d o w n
AC ELECTRICAL CHARACTERISTICS (continued)
(V = +5V, V = -5V, SHDN = 5V, V
= 0V, A = +1V/V for MAX4223/MAX4225/MAX4226, A = +2V/V for MAX4224/MAX4227/
CC
EE
CM
V
V
MAX4228, R = 100Ω, T = +25°C, unless otherwise noted.) (Note 4)
L
A
PARAMETER
Output Impedance
SYMBOL
CONDITIONS
MIN
TYP
2
MAX
UNITS
Z
OUT
f = 10kHz
f = 30kHz
f = 30.1MHz
z
Ω
MAX4223/5/6
MAX4224/7/8
MAX4223/5/6
MAX4224/7/8
42
36
-61
-62
20
2
Third-Order Intercept
IP3
dBm
dB
Spurious-Free Dynamic Range
SFDR
f = 10kHz
1dB Gain Compression
f = 10kHz
f = 10kHz
dBm
Input Noise Voltage Density
e
n
nV/√Hz
IN+
3
Input Noise Current Density
Input Capacitance (Note 7)
i +, i -
f = 10kHz
pA/√Hz
n
n
IN-
20
0.3
1.0
0.3
0.8
Pin to pin
Pin to GND
Pin to pin
Pin to GND
SO-8, SO-14
packages
C
pF
IN
SOT23-6, 10-pin µMAX
packages
3–MAX428
Note 1: The MAX422_EUT is 100% production tested at T = +25°C. Specifications over temperature limits are guaranteed by design.
A
Note 2: Absolute Maximum Power Dissipation must be observed.
Note 3: Does not include impedance of external feedback resistor network.
Note 4: AC specifications shown are with optimal values of R and R . These values vary for product and package type, and are
F
G
tabulated in the Applications Information section of this data sheet.
Note 5: The AC specifications shown are not measured in a production test environment. The minimum AC specifications given are
based on the combination of worst-case design simulations along with a sample characterization of units. These minimum
specifications are for design guidance only and are not intended to guarantee AC performance (see AC Testing/
Performance). For 100% testing of these parameters, contact the factory.
Note 6: Input Test Signal: 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0IRE to 100IRE). IRE is a unit of
video signal amplitude developed by the International Radio Engineers. 140IRE = 1V.
Note 7: Assumes printed circuit board layout similar to that of Maxim’s evaluation kit.
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V = +5V, V = -5V, R = 100Ω, T = +25°C, unless otherwise noted.)
CC
EE
L
A
MAX4223
MAX4223/MAX4225/MAX4226
MAX4223
SMALL-SIGNAL GAIN vs. FREQUENCY
LARGE-SIGNAL GAIN vs. FREQUENCY
SMALL-SIGNAL GAIN vs. FREQUENCY
(A = +2/+5)
VCL
(A = +1)
VCL
(A = +1)
VCL
4
4
4
V
IN
= 20mVp-p
V
IN
= 20mVp-p
A = +1V/V
V
3
2
3
2
3
2
R = 560Ω
F
SO-8 PACKAGE
R = 560Ω
V
OUT
= 2Vp-p
A = +2V/V
V
F
R = R = 200Ω
F
G
1
1
1
0
0
0
-1
-2
-3
-4
-1
-2
-3
-4
-1
-2
-3
-4
SOT23-6
R = 470Ω
A = +5V/V
V
F
R = 100Ω
F
R = 25Ω
G
-5
-6
-5
-6
-5
-6
1
10
100
1000
1
10
100
FREQUENCY (MHz)
1000
1
10
100
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
4
_______________________________________________________________________________________