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MAX186AMJP

更新时间： 2024-11-05 22:57:59
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
24页 246K
描述
Low-Power, 8-Channel, Serial 12-Bit ADCs

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MAX186AMJP 数据手册

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19-0123; Rev. 4; 8/96  
Lo w -P o w e r, 8 -Ch a n n e l,  
S e ria l 1 2 -Bit ADCs  
6/MAX18  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
The MAX186/MAX188 are 12-bit data-acquisition sys-  
tems that combine an 8-channel multiplexer, high-band-  
width track/hold, and serial interface together with high  
conversion speed and ultra-low power consumption.  
The devices operate with a single +5V supply or dual  
±5V supplies. The analog inputs are software config-  
urable for unipolar/bipolar and single-ended/differential  
operation.  
♦ 8-Channel Single-Ended or 4-Channel  
Differential Inputs  
♦ Single +5V or ±5V Operation  
♦ Low Power: 1.5mA (operating mode)  
2µA (power-down mode)  
♦ Internal Track/Hold, 133kHz Sampling Rate  
♦ Internal 4.096V Reference (MAX186)  
♦ SPI-, QSPI-, Microwire-, TMS320-Compatible  
The 4-wire serial interface directly connects to SPI™,  
QSPI™ and Microwire™ devices without external logic. A  
serial strobe output allows direct connection to TMS320  
family digital signal processors. The MAX186/MAX188  
use either the internal clock or an external serial-interface  
clock to perform successive-approximation A/D conver-  
sions. The serial interface can operate beyond 4MHz  
when the internal clock is used.  
4-Wire Serial Interface  
♦ Software-Configurable Unipolar or Bipolar Inputs  
♦ 20-Pin DIP, SO, SSOP Packages  
♦ Evaluation Kit Available  
______________Ord e rin g In fo rm a t io n  
†
PART  
TEMP. RANGE  
PIN-PACKAGE  
20 Plastic DIP  
20 SO  
MAX186_CPP  
MAX186_CWP  
MAX186_CAP  
MAX186DC/D  
MAX186_EPP  
MAX186_EWP  
MAX186_EAP  
MAX186_MJP  
0°C to +70°C  
The MAX186 has an internal 4.096V reference while the  
MAX188 requires an external reference. Both parts  
have a reference-buffer amplifier that simplifies gain  
trim .  
0°C to +70°C  
0°C to +70°C  
20 SSOP  
0°C to +70°C  
Dice*  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
20 Plastic DIP  
20 SO  
The MAX186/MAX188 provide a hard-wired SHDN pin  
a nd two s oftwa re -s e le c ta b le p owe r-d own mod e s .  
Accessing the serial interface automatically powers up  
the d e vic e s , a nd the q uic k turn-on time a llows the  
MAX186/MAX188 to b e s hut d own b e twe e n e ve ry  
conversion. Using this technique of powering down  
between conversions, supply current can be cut to  
under 10µA at reduced sampling rates.  
20 SSOP  
20 CERDIP**  
Ord e rin g In fo rm a t io n c o n t in u e d o n la s t p a g e .  
† NOTE: Parts are offered in grades A, B, C and D (grades defined  
in Electrical Characteristics). When ordering, please specify grade.  
Contact factory for availability of A-grade in SSOP package.  
*
Dice are specified at +25°C, DC parameters only.  
The MAX186/MAX188 are available in 20-pin DIP and  
SO packages, and in a shrink small-outline package  
(SSOP), that occupies 30% less area than an 8-pin DIP.  
For applications that call for a parallel interface, see the  
MAX180/MAX181 data sheet. For anti-aliasing filters,  
consult the MAX274/MAX275 data sheet.  
* * Contact factory for availability and processing to MIL-STD-883.  
____________________P in Co n fig u ra t io n  
TOP VIEW  
CH0  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
1
2
V
20  
DD  
________________________Ap p lic a t io n s  
19 SCLK  
Portable Data Logging  
Data-Acquisition  
CS  
18  
3
4
17  
DIN  
MAX186  
MAX188  
5
16 SSTRB  
15 DOUT  
High-Accuracy Process Control  
Automatic Testing  
6
DGND  
AGND  
7
14  
13  
12  
11  
Robotics  
8
Battery-Powered Instruments  
Medical Instruments  
V
SS  
9
REFADJ  
VREF  
SHDN  
10  
SPI and QSPI are registered trademarks of Motorola.  
Microwire is a registered trademark of National Semiconductor.  
DIP/SO/SSOP  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
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MAX186AMJP 替代型号

型号 品牌 替代类型 描述 数据表
MAX186BCPP+ MAXIM

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 ADC, Successive Approximation, 12-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, PLA

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