MAX2077CTN Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2077CTN Datasheet PDF : 19 Pages
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Octal-Channel Ultrasound Front-End
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuits, VREF = 2.475V to 2.525V, VCC1 = 3.13V to 3.47V, VCC2 = 4.5V to 5.25V, TA = 0°C to +70°C, VGND = 0V,
NP = 0, PD = 0, no RF signals applied. Typical values are at VCC1 = 3.3V, VCC2 = 4.75V, TA = +25°C, unless otherwise noted.) (Note 5)
PARAMETER
Common-Mode Voltage for
Difference Analog Control
Source/Sink Current for Gain
Control Pins
Reference Current
Output Common-Mode Level
SYMBOL
CONDITIONS
VGAIN_COMM (VG+ + VG-)/2
I_ACONTROL Per pin
IREF
VCMO
All channels
MIN TYP MAX UNITS
1.65
±5%
V
±1.6
±4
μA
9.7
13
μA
1.73
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuits, VREF = 2.475V to 2.525V, VCC1 = 3.13V to 3.47V, VCC2 = 4.5V to 5.25V, TA = 0°C to +70°C, VGND = 0V,
NP = 0, PD = 0, D3/D2/D1/D0 = 1/0/1/0 (RIN = 200Ω, LNA gain = 18.5dB), D5/D4=1/1(fC = 18MHz), fRF = 5MHz, RS = 200Ω, capaci-
tance to GND at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF, RL = 1kΩ differen-
tial, reference noise less than 10nV/√Hz from 1kHz to 20MHz, DOUT loaded with 10MΩ and 60pF. Typical values are at VCC1 = 3.3V,
VCC2 = 4.75V, TA = +25°C, unless otherwise noted.) (Note 5)
PARAMETER
CONDITIONS
Input Impedance
D1/D0 = 0/0, RIN = 50, fRF = 2MHz
D1/D0 = 0/1, RIN = 100, fRF = 2MHz
D1/D0 = 1/0, RIN = 200, fRF = 2MHz
D1/D0 = 1/1, RIN = 1000, fRF = 2MHz
Noise Figure
RS = RIN = 50, LNA gain = 18.5dB, VG+ - VG- = +3V
RS = RIN =100, LNA gain = 18.5dB, VG+ - VG- = +3V
RS = RIN = 200, LNA gain = 18.5dB, VG+ - VG- = +3V
RS = RIN = 1000, LNA gain = 18.5dB, VG+ - VG- = +3V
Low-Gain Noise Figure
D3/D2/D1/D0 = 0/0/0/1, LNA gain = 12.5dB,
RS = RIN = 200, VG+ - VG- = +3V
Input-Referred Noise Voltage
D3/D2/D1/D0 = 1/1/1/0
Input-Referred Noise Current
D3/D2/D1/D0 = 1/1/1/0
Maximum Gain, High Gain Setting VG+ - VG- = +3V
Minimum Gain, High Gain Setting VG+ - VG- = -3V
Maximum Gain, Low Gain
Setting
D3/D2/D1/D0 = 0/0/0/1, RIN = 200, LNA gain = 12.5dB,
VG+ - VG- = +3V
Minimum Gain, Low Gain Setting D3/D2/D1/D0 = 0/0/0/1, RIN = 200, LNA gain = 12.5dB,
VG+ - VG- = -3V
Anti-Aliasing Filter 3dB Corner
Frequency
Gain Range
D5/D4 = 0/0, fC = 9MHz
D5/D4 = 0/1, fC = 10MHz
D5/D4 = 1/0, fC = 15MHz
D5/D4 = 1/1, fC = 18MHz
VG+ - VG- = -3V to +3V
MIN
47.5
90
185
600
41
9
35
3
TYP MAX
50
60
100 115
200 220
830 1000
4.5
3.4
2.4
2.2
3.9
0.9
2.1
42.4 45
10.1 12
37.6 39
5.4
8
9
10
15
18
33
UNITS
dB
dB
nV/Hz
pA/Hz
dB
dB
dB
dB
MHz
dB
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