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參數(shù)資料
| 型號： | MAX1150 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-23 0 to 70 |
| 中文描述： | 8位、500Msps閃速ADC |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 77K |
| 代理商： | MAX1150 |
The MAX1150 has true differential analog and digital
data paths from the preamplifiers to the output buffers
(current-mode logic) for reducing potential missing
codes while rejecting common-mode noise.
Signature errors are also reduced by careful layout of the
analog circuitry. The device’s output drive capability can
provide full ECL swings into 50
loads.
T ypic al Interfac e Circ uit
The circuit of Figure 1 shows a method of achieving the
least error by correcting for integral linearity, input-
induced distortion, and power- supply/ground noise.
This is achieved with the use of external reference-ladder
tap connections, an input buffer, and supply decoupling.
Contact the factory for the MAX1150/MAX1151 evalua-
tion kit manual, which contains more details on interfac-
ing the MAX1150. The function of each pin and external
connections to other components are described in the
following sections.
V
EE
, AGND, DGND
VEE is the supply pin with AGND as ground for the
device. The power-supply pins should be bypassed as
close to the device as possible with at least a 0.01μF
ceramic capacitor. A 1μF tantalum can also be used for
low-frequency suppression. DGND is the ground for the
ECL outputs, and should be referenced to the output
pulldown voltage and appropriately bypassed, as shown
in Figure 1.
VIN (Analog Input)
There are two analog input pins that are tied to the same
point internally. Either one may be used as an analog
input sense, while the other is used for input force. This
is convenient for testing the source signal to see if there
is sufficient drive capability. The pins can also be tied to-
gether and driven by the same source. The MAX1150 is
superior to similar devices due to a preamplifier stage
before the comparators. This makes the device easier to
drive because it has constant capacitance and induces
less slew-rate distortion.
CLK, NCLK (Clock Inputs)
The clock inputs are designed to be driven differentially
with ECL levels. The duty cycle of the clock should be
kept at 50%, to avoid causing larger second harmonics.
If this is not important to the intended application, duty
cycles other than 50% may be used.
D0 to D8, DR, NDR (A and B)
The digital outputs can drive 50
to ECL levels when
pulled down to -2V. When pulled down to -5.2V, the out-
puts can drive 130
to 1k
loads. All digital outputs are
gray code, with the coding as shown in Table 1.
Table 1. Output Coding
VRBF, VRBS, VRTF, VRTS, VRM
(Reference Inputs)
There are two reference inputs and one external refer-
ence voltage tap. These are -2V (VRB force and sense),
mid-tap (VRM), and AGND (VRT force and sense). The
reference pins and tap can be driven by op amps (as
shown in Figure 1), or VRM can be bypassed for limited
temperature operation. These voltage inputs can be by-
passed to AGND for further noise suppression, if
desired.
T hermal Management
The typical thermal impedance has (
θ
CA
) for the
MQUAD package been measured at
θ
CA
= 17°C/W, in
still air with no heatsink.
To ensure rated performance, we highly recommend
using this device with a heatsink that can provide ade-
quate air flow. We have found that a Thermalloy 17846
heatsink with a minimum air flow of 1 meter/second
(200 linear feet per minute) provides adequate thermal
performance under laboratory tests. Application-specif-
ic conditions should be taken into account to ensure
that the device is properly heat sinked.
M
8-Bit, 500Msps Flash ADC
_______________________________________________________________________________________
5
V
IN
(V)
0
D8
1
D7 . . . D0
10000000
10000001
10000011
10100001
10100000
11100000
11000001
11000000
01000000
01100001
01100000
00100000
00000011
00000001
00000000
-0.5
-1.0
-1.5
-2.0
0
0
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1150BIZS | 8-Bit, 500Msps Flash ADC |
| MAX1151AIZS | 8-Bit, 750Msps Flash ADC |
| MAX1151 | Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-23 0 to 70 |
| MAX1151BIZS | 8-Bit, 750Msps Flash ADC |
| MAX1153BEUE | CAP 100UF 16V ELECT FC SMD |
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| MAX11500USA+T | 功能描述:視頻 IC 3Ch High-Def Video Filter RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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| MAX11501EVKIT+ | 功能描述:視頻 IC 開發(fā)工具 MAX11501 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V |
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