參數(shù)資料
型號(hào)： MAX2078CTK+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 21/26頁(yè)
文件大小： 0K
描述： IC FRNT-END ULTRASOUND 8CH 68QFN
應(yīng)用說(shuō)明： Ultrasound Imaging Systems Application Note
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
特色產(chǎn)品： MAX2078 Octal-Channel Ultrasound Front-End with CW Doppler Mixers
標(biāo)準(zhǔn)包裝： 30
類型： 超聲波接收器
應(yīng)用： 醫(yī)療用超聲波成像，聲納
安裝類型： 表面貼裝
封裝/外殼： 68-TQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 68-TQFN-EP（10x10）
包裝： 管件
MAX2078
Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit, 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, D43/D42/D41/D40 = 1/0/1/0 (RIN = 200, LNA gain = 18.5dB, D45/D44 = 1/1 (fC = 18MHz), fRF = fLO/16 = 5MHz,
capacitance to GND at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF, RL = 1k
differential, reference noise less than 10nV/
√Hz from 1kHz to 20MHz, DOUT loaded with 10M and 60pF. Typical values are at VCC1
= 3.3V, VCC2 = 4.75V, TA = +25°C, unless otherwise noted.) (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V/C stepped from 0 to 1, DC stable within 10%
1
Mode Select Response Time
(Note 10)
V/C stepped from 1 to 0, DC stable within 10%
1
s
High Gain Maximum Input-
Voltage Range
High LNA gain D43/D42/D41/D40 = 1/0/1/0
0.33
VP-P
differential
Low Gain Maximum Input-Voltage
Range
Low LNA gain D43/D42/D41/D40 = 0/0/0/1
0.6
VP-P
differential
AC ELECTRICAL CHARACTERISTICS—VGA MODE
(
Typical Application Circuit, 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,
V/C = 1, NP = 0, PD = 0, D43/D42/D41/D40 = 1/0/1/0 (RIN = 200, LNA gain = 18.5dB), D45/D44 = 1/1 (fC = 18MHz), fRF = 5MHz,
capacitance to GND at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF, RL = 1k
differential, reference noise less than 10nV/
√Hz from 1kHz to 20MHz, DOUT loaded with 10M and 60pF. Typical values are at VCC1
= 3.3V, VCC2 = 4.75V, TA = +25°C, unless otherwise noted.) (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
D42/D41/D40 = 0/0/0, RIN = 50
47.5
50
60
D42/D41/D40 = 0/0/1, RIN = 100
90
100
110
D42/D41/D40 = 0/1/0, RIN = 200
180
200
220
Input Impedance
D42/D41/D40 = 0/1/1, RIN = 1000
, fRF = 2MHz
700
830
1000
RS = RIN = 50
, VG+ - VG- = +3V
4.5
RS = RIN =100
, VG+ - VG- = +3V
3.4
RS = RIN = 200
, VG+ - VG- = +3V
2.4
Noise Figure
RS = RIN = 1000
, VG+ - VG- = +3V
2.1
dB
Low-Gain Noise Figure
D43/D42/D41/D40 = 0/0/0/1, LNA gain = 12.5dB,
RS = RIN = 200
, VG+ - VG- = +3V
3.9
dB
Input-Referred Noise Voltage
D43/D42/D41/D40 = 1/1/1/0
0.9
nV/
√Hz
Input-Referred Noise Current
D43/D42/D41/D40 = 1/1/1/0
2.1
pA/
√Hz
Maximum Gain, High Gain Setting
VG+ - VG- = +3V
41
42.8
45
dB
Minimum Gain, High Gain Setting
VG+ - VG- = -3V
8.5
10
11
dB
Maximum Gain, Low Gain Setting
D43/D42/D41/D40 = 0/0/0/1, VG+ - VG- = +3V
35
36.8
38
dB
Minimum Gain, Low Gain Setting
D43/D42/D41/D40 = 0/0/0/1, VG+ - VG- = -3V
2.5
4
6
dB
D45/D44 = 0/0, fC = 9MHz
9
D45/D44 = 0/1, fC = 10MHz
10
D45/D44 = 1/0, fC = 15MHz
15
Anti-Aliasing Filter 3dB Corner
Frequency
D45/D44 = 1/1, fC = 18MHz
18
MHz
Gain Range
VG+ - VG- = -3V to +3V
33
dB
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