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参数资料
| 型号： | MAX2034CTM-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | Quad-Channel, Ultra-Low-Noise Amplifier with Digitally Programmable Input Impedance |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC48 |
| 封装： | 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48 |
| 文件页数： | 1/13页 |
| 文件大小： | 356K |
| 代理商： | MAX2034CTM-T |
General Description
The MAX2034 four-channel, low-power, ultra-low-noise
preamplifier is designed for ultrasound and medical
instrumentation applications. Each low-noise amplifier
has a single-ended input, differential output, a highly
accurate 19dB fixed gain, and a wide -3dB bandwidth
of 70MHz. The high-gain accuracy of the amplifier
allows for exceptional channel-to-channel gain match-
ing, which is necessary for high-performance ultra-
sound-imaging applications. The MAX2034 also
includes an on-chip programmable input impedance
feature that allows the device to be compatible with a
variety of common source impedances ranging from
50
to 1k
. The input impedance of each amplifier
uses a feedback topology for active impedance match-
ing. The active input impedance matching feature
achieves an exceptionally low 2.2dB noise figure with a
source and input impedance of 200
.
The MAX2034 has excellent dynamic and linearity per-
formance characteristics optimized for all ultrasound-
imaging modalities including second harmonic 2D
imaging and continuous wave Doppler. The device
achieves a second harmonic distortion of -68dBc at
V
OUT
= 1V
P-P
and f
IN
= 5MHz, and an ultrasound-spe-
cific* two-tone third-order intermodulation distortion per-
formance of -55dBc at V
OUT
= 1V
P-P
and f
IN
= 5MHz.
The MAX2034 is also optimized for quick overload
recovery for operation under the large input signal con-
ditions typically found in ultrasound input-buffer imag-
ing applications.
The MAX2034 is available in a 48-pin thin QFN pack-
age with an exposed paddle. Electrical performance is
guaranteed over a 0°C to +70°C temperature range.
Features
High-Level Integration of 4 Channels
Digitally Programmable Input Impedance (R
IN
) of
50
, 100
, 200
, and 1k
Integrated Input Clamp
Integrated Input-Damping Capacitor
Ultra-Low 2.2dB Noise Figure at R
S
= R
IN
= 200
70MHz, -3dB Bandwidth
Low 58mW/Channel Power Dissipation
HD2 of -68dBc at V
OUT
= 1V
P-P
and f
IN
= 5MHz for
Exceptional Second Harmonic Imaging
Performance
Two-Tone Ultrasound-Specific
*
IMD3 of -55dBc at
V
OUT
= 1V
P-P
and f
IN
= 5MHz for Exceptional
PW/CW Doppler Performance
Quick Large-Signal Overload Recovery
Single +5V Supply Operation
Sleep Mode
M
Quad-Channel, Ultra-Low-Noise Amplifier with
Digitally Programmable Input Impedance
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
TOP VIEW
MAX2034
THIN QFN
13
14
15
16
17
18
19
20
21
22
23
24
INC4
INB4
GND
V
CC
V
CC
D1
D0
V
CC
GND
GND
OUT4-
OUT4+
48
47
46
45
44
43
42
41
40
39
38
37
1
2
3
4
5
6
7
8
9
10
11
12
IN1
ZF1
GND
V
CC
V
CC
PD
D2
V
CC
GND
GND
V
CC
GND
I
Z
I
I
I
Z
I
I
I
Z
I
I
36
35
34
33
32
31
30
29
28
27
26
25
G
G
V
C
O
O
V
C
O
O
G
V
C
O
O
Pin Configuration
19-3969; Rev 1; 3/07
PART
TEMP
RANGE
PIN-
PACKAGE
48 Thin QFN-EP**
(7mm x 7mm)
48 Thin QFN-EP**
(7mm x 7mm)
48 Thin QFN-EP**
(7mm x 7mm)
48 Thin QFN-EP**
(7mm x 7mm)
PKG
CODE
MAX2034CTM+
0°C to +70°C
T4877-4
MAX2034CTM
0°C to +70°C
T4877-4
MAX2034CTM+T 0°C to +70°C
T4877-4
MAX2034CTM-T 0°C to +70°C
T4877-4
Ordering Information
**
EP = Exposed paddle.
+
Denotes lead-free package.
T
= Tape-and-reel package.
*
See the Ultrasound-Specific IMD3 Specification in the
Applications Information section.
Typical Application Circuit appears at end of data sheet.
Applications
Ultrasound Imaging
Sonar Signal Amplification
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