MAX2038 Maxim Integrated Products, MAX2038 Datasheet - Page 7

• Manufacturer Part Number: MAX2038
• Description: Ultrasound VGA Integrated
• Manufacturer: Maxim Integrated Products

(Figure 7, V
VGA differential outputs is 60pF, differential capacitance across the VGA outputs is 10pF, R
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
V
V
GAIN = 20dB
IN1
IN2
2.5
CC
= 35mV
= 87.5mV
OVERDRIVE PHASE DELAY
CC
= V
5.0
P-P
-100
= V
vs. FREQUENCY
FREQUENCY (MHz)
REF
-10
-20
-30
-40
-50
-60
-70
-80
-90
P-P
7.5
DIFFERENTIAL
0
_______________________________________________________________________________________
DIFFERENTIAL
-15
REF
OUTPUT 1V
= 4.75V to 5.25V, V
10.0 12.5 15.0 17.5 20.0
V
OUT
SECOND HARMONIC DISTORTION
= 5V, T
OVERLOAD RECOVERY TIME
= 1V
f = 5MHz
-5
P-P
P-P
TO OVERLOAD AND BACK TO 1V
f = 12MHz
DIFFERENTIAL
A
= +25°C, unless otherwise noted.)
5
400ns/div
vs. GAIN
GAIN (dB)
15
GND
f = 2MHz
f = 5MHz
-100
= 0, PD = 0, VG_CLAMP_MODE = 1, f
-40
-50
-60
-70
-80
-90
25
MAX2038 toc06
P-P
0
POWER-SUPPLY MODULATION RATIO
25
35
DIFFERENTIAL
OUTPUT
1.0V/div
DIFFERENTIAL
INPUT
1.0V/div
Ultrasound VGA Integrated
50
V
V
GAIN = 10dB
OUT
MOD
FREQUENCY (kHz)
75
= 1.5V
= 50mV
100 125 150 175 200
P-P
P-P
DIFFERENTIAL
Typical Operating Characteristics
, f
CARRIER
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
with CW Octal Mixer
-15
= 5MHz,
OUTPUT 100mV
AND BACK TO 100mV
V
OUT
THIRD HARMONIC DISTORTION
OVERLOAD RECOVERY TIME
= 1V
-5
RF
P-P
P-P
DIFFERENTIAL
= 5MHz, capacitance to GND at each of the
f = 5MHz
f = 2MHz
TO OVERLOAD
-10
-20
-30
-40
-50
-60
-70
-80
P-P
vs. GAIN
5
400ns/div
GAIN (dB)
0
-15
L
TWO-TONE ULTRASOUND-SPECIFIC
= 1kΩ, T
15
f = 12MHz
-5
f = 5MHz
25
MAX2038 toc07
IMD3 vs. GAIN
A
f = 2MHz
f = 10MHz
5
www.DataSheet4U.com
= 0°C to +70°C. Typical
GAIN (dB)
V
OUT
35
= 1V
DIFFERENTIAL
OUTPUT
2.0V/div
DIFFERENTIAL
INPUT
2.0V/div
15
f = 5MHz
P-P
DIFFERENTIAL
25
35
7