MAX2035 Maxim Integrated Products, MAX2035 Datasheet - Page 6

• Manufacturer Part Number: MAX2035
• Description: Ultrasound Variable Gain Amplifier
• Manufacturer: Maxim Integrated Products

www.DataSheet4U.com
Ultrasound Variable-Gain Amplifier
6
(Figure 2, V
VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, R
ues are at V
-10
-15
-20
-25
-30
_______________________________________________________________________________________
80
70
60
50
40
30
10
40
35
30
25
20
15
10
-5
5
0
5
0
0.1
-15
0.1
OUTPUT-REFERRED NOISE VOLTAGE
f
= 5MHz
CC
CC
LARGE-SIGNAL BANDWIDTH
LARGE-SIGNAL BANDWIDTH
-5
= V
1
1
= V
V
VG_CTL = +1.7V
V
VG_CTL = -0.8V
OUT
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (MHz)
FREQUENCY (MHz)
5
REF
REF
= 1.5V
= 1.5V
vs. GAIN
GAIN (dB)
= 4.75V to 5.25V, GND = 0V, PD = 0, VG_CLAMP_MODE = 1, f
10
= 5V, V
15
10
P-P
P-P
DIFFERENTIAL
DIFFERENTIAL
P-P
P-P
25
DIFFERENTIAL
DIFFERENTIAL
CM
100
100
= 3.0V, T
35
1000
1000
45
A
= +25°C, unless otherwise noted.)
-15
-10
-10
-15
-20
-25
-30
-35
-40
Typical Operating Characteristics (continued)
30
25
20
15
10
45
35
25
15
-5
-5
-5
5
0
0
5
-2.5
0.1
0.1
GAIN vs. DIFFERENTIAL ANALOG
CONTROL VOLTAGE (VG_CTL)
LARGE-SIGNAL BANDWIDTH
LARGE-SIGNAL BANDWIDTH
-1.5
VG_CTL (V
1
1
V
VG_CTL = +0.2V
V
VG_CTL = +2V
OUT
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (MHz)
FREQUENCY (MHz)
-0.5
= 1.5V
= 1V
P-P
P-P
10
10
P-P
DIFFERENTIAL)
DIFFERENTIAL
P-P
DIFFERENTIAL
0.5
P-P
DIFFERENTIAL
DIFFERENTIAL
f
= 5MHz
100
100
1.5
1000
1000
2.5
RF
= 5MHz, capacitance to GND at each of the
L
-100
-10
-15
-20
-10
-20
-30
-40
-50
-60
-70
-80
-90
= 1kΩ, T
50
45
40
35
30
25
20
15
10
20
15
10
-5
0
5
0
0.1
0.1
0
vs. DIFFERENTIAL OUTPUT VOLTAGE
f = 5MHz, GAIN = 20dB
THIRD HARMONIC
DIFFERENTIAL OUTPUT VOLTAGE (V
0.5
LARGE-SIGNAL BANDWIDTH
LARGE-SIGNAL BANDWIDTH
A
HARMONIC DISTORTION
= 0°C to +70°C. Typical val-
1
1
V
VG_CTL = -2V
V
VG_CTL = +1.2V
OUT
OUT
vs. FREQUENCY
FREQUENCY (MHz)
vs. FREQUENCY
1.0
FREQUENCY (MHz)
= 1.5V
= 1.5V
SECOND HARMONIC
10
1.5
10
P-P
P-P
P-P
DIFFERENTIAL
DIFFERENTIAL
P-P
DIFFERENTIAL
2.0
DIFFERENTIAL
100
100
2.5
P-P
)
1000
1000
3.0