MAX2037CCQ-TD Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2037CCQ-TD Datasheet PDF : 12 Pages
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Ultrasound Variable-Gain Amplifier
Typical Operating Characteristics (continued)
(Figure 2, VCC = VREF = 4.75V to 5.25V, GND = 0V, PD = 0, VG_CLAMP_MODE = 1, fRF = 5MHz, capacitance to GND at each of the
VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, RL = 1kΩ, TA = 0°C to +70°C. Typical
values are at VCC = VREF = 5V, TA = +25°C, unless otherwise noted.)
OUTPUT-REFERRED NOISE VOLTAGE
vs. GAIN
50
f = 5MHz
40
30
20
10
GAIN vs. DIFFERENTIAL ANALOG
CONTROL VOLTAGE (VG_CTL)
35
f = 5MHz
25
15
5
-5
-15
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
40
VOUT = 1.5VP-P DIFFERENTIAL
35 VG_CTL = -2VP-P DIFFERENTIAL
30
25
20
15
10
5
0
-15
-5
5
15
25
35
GAIN (dB)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
30
VOUT = 1.5VP-P DIFFERENTIAL
25 VG_CTL = -1VP-P DIFFERENTIAL
-25
-2.5 -1.5 -0.5 0.5 1.5 2.5
VG_CTL (VP-P DIFFERENTIAL)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
20
VOUT = 1.5VP-P DIFFERENTIAL
15 VG_CTL = +0.6VP-P DIFFERENTIAL
0
0.1
1
10
100
1000
FREQUENCY (MHz)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
10
VOUT = 1.5VP-P DIFFERENTIAL
5 VG_CTL = +1.5VP-P
20
10
0
15
5
-5
10
0
-10
5
-5
-15
0
-10
-20
-5
-15
-25
-10
0.1
1
10
100
1000
FREQUENCY (MHz)
-20
0.1
1
10
100
1000
FREQUENCY (MHz)
-30
0.1
1
10
100
1000
FREQUENCY (MHz)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
5
VOUT = 1VP-P DIFFERENTIAL
0 VG_CTL = +1.7VP-P DIFFERENTIAL
-5
-10
-15
-20
-25
-30
-35
0.1
1
10
100
1000
FREQUENCY (MHz)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
0
VOUT = 0.5VP-P DIFFERENTIAL
-5 VG_CTL = +2VP-P DIFFERENTIAL
-10
-15
-20
-25
-30
-35
-40
0.1
1
10
100
1000
FREQUENCY (MHz)
HARMONIC DISTORTION
vs. DIFFERENTIAL OUTPUT VOLTAGE
0
-10
VOUT = 1VP-P DIFFERENTIAL
f = 5MHz, GAIN = 10dB
-20
-30
THIRD HARMONIC
-40
-50
-60
-70
-80
SECOND HARMONIC
-90
-100
0
0.5 1.0 1.5 2.0 2.5 3.0
DIFFERENTIAL OUTPUT VOLTAGE (VP-P)
6 _______________________________________________________________________________________
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