MAX2037 Maxim Integrated Products, MAX2037 Datasheet - Page 4
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MAX2037
Manufacturer Part Number
MAX2037
Description
Ultrasound Variable Gain Amplifier
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX2037.pdf
(12 pages)
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AC ELECTRICAL CHARACTERISTICS (continued)
(Figure 2, V
5MHz, capacitance to GND at each of the VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF,
R
Ultrasound Variable-Gain Amplifier
4
Note 1: Specifications at T
Note 2: Noise performance of the device is dependent on the noise contribution from the supply to V
Note 3: See the Ultrasound-Specific IMD3 Specification in the Applications Information section.
(Figure 2, V
VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, R
values are at V
Channel-to-Channel Crosstalk
Maximum Output Voltage at
Clamp ON
Maximum Output Voltage at
Clamp OFF
L
= 1kΩ. Typical values are at V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
_______________________________________________________________________________________
0
0
by design and characterization.
V
V
V
GAIN = 20dB
IN1
IN2
REF
PARAMETER
2.5
CC
CC
= 35mV
= 87.5mV
OVERDRIVE PHASE DELAY
. V
= V
CC
5.0
= V
CC
P-P
vs. FREQUENCY
FREQUENCY (MHz)
P-P
REF
= V
REF
7.5
DIFFERENTIAL
and V
DIFFERENTIAL
REF
= 4.75V to 5.25V, V
10.0 12.5 15.0 17.5 20.0
= 4.75V to 5.25V, GND = 0V, PD = 0, VG_CLAMP_MODE = 1, f
REF
= 5V, T
A
= +25°C and T
can be connected together to share the same supply voltage if the supply for V
CC
A
= +25°C, unless otherwise noted.)
= V
SYMBOL
REF
CM
= 5V, T
A
= 2.85V to 3.15V, T
= +70°C are guaranteed by production test. Specifications at T
-100
V
VG_CTL set for +10dB of gain
VG_CLAMP_MODE = 0,
VG_CTL set for +20dB of gain,
350mV
VG_CLAMP_MODE = 1,
VG_CTL set for +20dB of gain,
350mV
-40
-50
-60
-70
-80
-90
OUT
A
0
= +25°C, unless otherwise noted.) (Note 1)
POWER SUPPLY MODULATION RATIO
= 1V
P-P
P-P
25
P-P
differential input
differential input
50
V
V
GAIN = 10dB
OUT
MOD
FREQUENCY (kHz)
differential, f
75
A
CONDITIONS
= 1.5V
= 50mV
= 0°C to +70°C, GND = 0V, PD = 0, VG_CLAMP_MODE = 1, f
100 125 150 175 200
P-P
P-P
Typical Operating Characteristics
DIFFERENTIAL
, f
CARRIER
RF
= 10MHz,
= 5MHz,
RF
= 5MHz, capacitance to GND at each of the
-10
-20
-30
-40
-50
-60
-70
-80
L
0
= 1kΩ, T
-15
MIN
TWO-TONE ULTRASOUND-SPECIFIC
REF
-5
. Use a low noise supply for
A
TYP
-80
2.4
2.8
= 0°C to +70°C. Typical
IMD3 vs. GAIN
CC
A
f = 2MHz
f = 10MHz
5
= 0°C are guaranteed
GAIN (dB)
V
exhibits low noise.
OUT
= 1V
MAX
15
f = 5MHz
P-P
DIFFERENTIAL
25
d i ffer enti al
d i ffer enti al
UNITS
V
V
dB
P-P
P-P
RF
35
=