參數(shù)資料
型號(hào): MAX2034CTM-T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 消費(fèi)家電
英文描述: Quad-Channel, Ultra-Low-Noise Amplifier with Digitally Programmable Input Impedance
中文描述: SPECIALTY CONSUMER CIRCUIT, QCC48
封裝: 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48
文件頁(yè)數(shù): 10/13頁(yè)
文件大?。?/td> 356K
代理商: MAX2034CTM-T
M
Quad-Channel, Ultra-Low-Noise Amplifier with
Digitally Programmable Input Impedance
10
______________________________________________________________________________________
D2/D1/D0
PD
ZF_
INC_
INB_
IN_
18nF
100nF
100nF
OUT_-
OUT_+
100nF
100nF
MAX2034
ONE CHANNEL
+V
-V
Figure 2. Typical Single-Channel Ultrasound Application Circuit
Ultrasound-Specific IMD3 Specification
Unlike typical communications specs, the two input
tones are not equal in magnitude for the ultrasound-
specific IMD3 two-tone specification. In this measure-
ment, F1 represents reflections from tissue and F2
represents reflections from blood. The latter reflections
are typically 25dB lower in magnitude, and hence the
measurement is defined with one input tone 25dB lower
than the other. The IMD3 product of interest (F1 - (F2 -
F1)) presents itself as an undesired Doppler error sig-
nal in ultrasound applications. See Figure 1.
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