MAX2037 Maxim Integrated Products, MAX2037 Datasheet - Page 6

• Manufacturer Part Number: MAX2037
• Description: Ultrasound Variable Gain Amplifier
• Manufacturer: Maxim Integrated Products

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Ultrasound Variable-Gain Amplifier
6
(Figure 2, V
VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, R
values are at V
50
40
30
20
10
-10
-10
-15
-20
-25
-30
-35
_______________________________________________________________________________________
30
25
20
15
10
0
-5
-5
5
0
5
0
-15
0.1
0.1
f = 5MHz
OUTPUT-REFERRED NOISE VOLTAGE
V
VG_CTL = -1V
V
VG_CTL = +1.7V
OUT
OUT
CC
LARGE-SIGNAL BANDWIDTH
= 1.5V
LARGE-SIGNAL BANDWIDTH
= 1V
-5
CC
= V
1
P-P
1
P-P
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (MHz)
FREQUENCY (MHz)
DIFFERENTIAL
= V
P-P
REF
DIFFERENTIAL
P-P
vs. GAIN
5
GAIN (dB)
DIFFERENTIAL
REF
DIFFERENTIAL
= 4.75V to 5.25V, GND = 0V, PD = 0, VG_CLAMP_MODE = 1, f
10
10
= 5V, T
15
100
100
25
A
= +25°C, unless otherwise noted.)
1000
1000
35
-15
-25
-10
-15
-20
-10
-15
-20
-25
-30
-35
-40
Typical Operating Characteristics (continued)
20
15
10
35
25
15
-5
-5
-5
5
0
0
5
-2.5
0.1
0.1
V
VG_CTL = +0.6V
V
VG_CTL = +2V
OUT
OUT
GAIN vs. DIFFERENTIAL ANALOG
CONTROL VOLTAGE (VG_CTL)
LARGE-SIGNAL BANDWIDTH
LARGE-SIGNAL BANDWIDTH
= 1.5V
= 0.5V
-1.5
VG_CTL (V
1
1
P-P
P-P
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (MHz)
FREQUENCY (MHz)
P-P
DIFFERENTIAL
DIFFERENTIAL
P-P
-0.5
DIFFERENTIAL
P-P
DIFFERENTIAL
10
10
DIFFERENTIAL)
0.5
100
100
f = 5MHz
1.5
1000
1000
2.5
RF
= 5MHz, capacitance to GND at each of the
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-15
-20
-25
-30
10
-5
L
40
35
30
25
20
15
10
0
5
0
5
0
= 1kΩ, T
0.1
0.1
0
vs. DIFFERENTIAL OUTPUT VOLTAGE
V
f = 5MHz, GAIN = 10dB
V
VG_CTL = +1.5V
V
VG_CTL = -2V
OUT
OUT
OUT
DIFFERENTIAL OUTPUT VOLTAGE (V
0.5
= 1V
LARGE-SIGNAL BANDWIDTH
= 1.5V
LARGE-SIGNAL BANDWIDTH
= 1.5V
HARMONIC DISTORTION
P-P
1
SECOND HARMONIC
1
A
P-P
P-P
vs. FREQUENCY
1.0
vs. FREQUENCY
DIFFERENTIAL
FREQUENCY (MHz)
= 0°C to +70°C. Typical
FREQUENCY (MHz)
P-P
THIRD HARMONIC
DIFFERENTIAL
DIFFERENTIAL
P-P
DIFFERENTIAL
1.5
10
10
2.0
100
100
2.5
P-P
)
1000
1000
3.0