MAX2038CCQ+ Maxim Integrated Products, MAX2038CCQ+ Datasheet - Page 7

• Manufacturer Part Number: MAX2038CCQ+
• Description: IC VGA W/OCTAL MIXER 8CH 100TQFP
• Manufacturer: Maxim Integrated Products
• Type: Variable Gain Amplifierr

Specifications of MAX2038CCQ+

• Applications: Medical Ultrasound Imaging, Sonar
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP Exposed Pad, 100-eTQFP, 100-HTQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Figure 7, V
the 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
CC
2.5
= 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
REF
-15
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
= 0V, PD = 0V, 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
P-P
P-P
DIFFERENTIAL
RF
f = 5MHz
f = 2MHz
TO OVERLOAD
-10
-20
-30
-40
-50
-60
-70
-80
P-P
vs. GAIN
5
400ns/div
GAIN (dB)
= 5MHz, capacitance to GND at each of
0
-15
L
TWO-TONE ULTRASOUND-SPECIFIC
15
f = 12MHz
= 1kΩ, T
-5
f = 5MHz
25
MAX2038 toc07
IMD3 vs. GAIN
f = 2MHz
A
f = 10MHz
5
GAIN (dB)
V
= 0°C to +70°C. Typical
OUT
35
= 1V
DIFFERENTIAL
OUTPUT
2.0V/div
DIFFERENTIAL
INPUT
2.0V/div
15
f = 5MHz
P-P
DIFFERENTIAL
25
35
7