MAX2079CXET Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX2079CXET Datasheet PDF : 49 Pages
| |||
MAX2079
Low-Power, High-Performance, Fully Integrated
Octal Ultrasound Receiver (Octal LNA, VGA,
AAF, ADC, and CWD Beamformer)
DC ELECTRICAL CHARACTERISTICS—VGA MODE (CWD Beamformer Off) (continued)
(VREF = 2.5V, VCC3 = 3.13V to 3.47V, VCC5 = 4.5V to 5.25V, VAVDD = VOVDD = 1.7V to 1.9V, TA = 0NC to +70NC, VGND = 0V, SHDN = 0,
CWD = 0, LOON = 0, fRF = 5MHz, 50mVP-P, ADC fCLK = 50Msps, digital HPF set to 60/64, two poles, 15/16 digital gain, VGC+ -
VGC- = -3V (minimum gain), high LNA gain. Typical values are at VREF = 2.5V, VCC3 = 3.3V, VCC5 = 4.75V, VAVDD = VOVDD = 1.8V,
VGC+ - VGC- = 0V, TA = +25NC, unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
5V Supply Nap Current
I_NP_5V_TOT SHDN = 1, nap mode (all 8 channels)
3V Supply Nap Current
I_NP_3V_TOT SHDN = 1, nap mode (all 8 channels)
1.8V Supply Nap Current
SHDN = 1, nap mode (all 8 channels)
5V Supply Power-Down Current
I_PD_5V_TOT
SHDN = 1, power-down mode
(all 8 channels)
MIN TYP MAX UNITS
30
mA
0.035
mA
40
mA
1
FA
3V Supply Power-Down Current
I_PD_3V_TOT
SHDN = 1, power-down mode
(all 8 channels)
1
FA
1.8V Supply Power-Down
Current
Common-Mode Voltage for
Differential Analog Control
Source/Sink Current for Gain
Control Pins
SHDN = 1, power-down mode
(all 8 channels)
VGAIN_COMM (VGC+ - VGC-)/2
I_ACONTROL Per pin
0.38
mA
1.65
±5%
V
±1.6
µA
AC Electrical Characteristics—VGA Mode (CWD Beamformer Off)
(VREF = 2.5V, VCC3 = 3.13V to 3.47V, VCC5 = 4.5V to 5.25V, VAVDD = VOVDD = 1.7V to 1.9V, TA = 0NC to +70NC, VGND = 0V, SHDN = 0,
CWD = 0, LOON = 0, fRF = 5MHz, 50mVP-P, ADC fCLK = 50Msps, digital HPF set to 60/64, two poles, 15/16 digital gain, VGC+ -
VGC- = -3V (minimum gain), high LNA gain. Typical values are at VREF = 2.5V, VCC3 = 3.3V, VCC5 = 4.75V, VAVDD = VOVDD = 1.8V,
VGC+ - VGC- = 0V, TA = +25NC, unless otherwise noted.) (Note 3)
PARAMETER
ADC Bits
Minimum ADC Sample Rate
Maximum ADC Sample Rate
Mode-Select Response Time
(Note 5)
Input Impedance
Noise Figure (High LNA Gain)
Noise Figure (Low LNA Gain)
CONDITIONS
CWD stepped from 0 to 1, DC stable within 10%
CWD stepped from 1 to 0, DC stable within 10%
50I mode, fRF = 2MHz
100I mode, fRF = 2MHz
200I mode, fRF = 2MHz
1kI mode, fRF = 2MHz
RS = RIN = 50I, VGC+ - VGC- = +3V
RS = RIN = 100I, VGC+ - VGC- = +3V
RS = RIN = 200I, VGC+ - VGC- = +3V
RS = RIN = 1000I, VGC+ - VGC- = +3V
RS = RIN = 200I, VGC+ - VGC- = +3V
MIN TYP MAX UNITS
12
Bits
25
Msps
50
Msps
1
Fs
1
50
100
I
200
1000
4.8
3.8
dB
2.8
2.5
3.8
dB
Maxim Integrated
3
Share Link: 