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MAX1067|MAX1068 PDF预览

MAX1067|MAX1068

更新时间: 2024-11-04 23:45:39
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描述
Multichannel. 14-Bit. 200ksps Analog-to-Digital Converters

MAX1067|MAX1068 数据手册

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19-2955; Rev 0; 8/03  
Multichannel, 14-Bit, 200ksps Analog-to-Digital  
Converters  
General Description  
Features  
The MAX1067/MAX1068 low-power, multichannel, 14-  
bit analog-to-digital converters (ADCs) feature a suc-  
cessive-approximation ADC, integrated +4.096V  
reference, a reference buffer, an internal oscillator,  
automatic power-down, and a high-speed SPI™/  
QSPI™/MICROWIRE™-compatible interface. The  
MAX1067/MAX1068 operate with a single +5V analog  
supply and feature a separate digital supply, allowing  
direct interfacing with +2.7V to +5.5V digital logic.  
o 14-Bit Resolution, ±±0. ꢀLB ꢁIꢀ ꢂnꢃ  
±1 ꢀLB ꢄIꢀ ꢅ(ꢂax  
o +.V Lingle-Lupply Operꢂtion  
o Aꢃjustꢂble ꢀogic ꢀevel ꢅ+207V to +.02.Vx  
o ꢁnput Voltꢂge Rꢂnge: ± to V  
REF  
o ꢁnternꢂl ꢅ+40±96Vx or Eaternꢂl ꢅ+308V to AV  
x
ꢄꢄ  
Reference  
The MAX1067/MAX1068 consume only 2.9mA (AV  
=
DD  
o ꢁnternꢂl Trꢂck/Holꢃ, 4MHz ꢁnput Bꢂnꢃwiꢃth  
o ꢁnternꢂl or Eaternꢂl Clock  
DV  
= +5V) at 200ksps when using an external refer-  
DD  
ence. AutoShutdown™ reduces the supply current to  
145µA at 10ksps and to less than 10µA at reduced sam-  
pling rates.  
o LPꢁ/QLPꢁ/MꢁCROWꢁRE-Co(pꢂtible Leriꢂl  
ꢁnterfꢂce, MAX1±68 Perfor(s ꢄLP-ꢁnitiꢂteꢃ  
Conversions  
The MAX1067 includes a 4-channel input multiplexer, and  
the MAX1068 accepts up to eight analog inputs.  
In addition, digital signal processor (DSP)-initiated con-  
versions are simplified with the DSP frame-sync input and  
output featured in the MAX1068. The MAX1068 includes a  
data-bit transfer input to select between 8-bit-wide or 16-  
bit-wide data-transfer modes. Both devices feature a scan  
mode that converts each channel sequentially or one  
channel continuously.  
o 8-Bit-Wiꢃe or 16-Bit-Wiꢃe ꢄꢂtꢂ-Trꢂnsfer Moꢃe  
ꢅMAX1±68 Onlyx  
o 4-Chꢂnnel ꢅMAX1±67x or 8-Chꢂnnel ꢅMAX1±68x  
ꢁnput Mua  
Lcꢂn Moꢃe Lequentiꢂlly Converts Multiple  
Chꢂnnels or One Chꢂnnel Continuously  
Excellent dynamic performance and low power, com-  
bined with ease of use and an integrated reference,  
make the MAX1067/MAX1068 ideal for control and data-  
acquisition operations or for other applications with  
demanding power consumption and space require-  
ments. The MAX1067 is available in a 16-pin QSOP  
package, and the MAX1068 is available in a 24-pin  
QSOP package. Both devices are guaranteed over the  
commercial (0°C to +70°C) and extended (-40°C to  
+85°C) temperature ranges. Use the MAX1168 evalua-  
tion kit to evaluate the MAX1068.  
o ꢀow Power  
209(A ꢂt 2±±ksps  
104.(A ꢂt 1±±ksps  
14.µA ꢂt 1±ksps  
±06µA in Full Power-ꢄown Moꢃe  
o L(ꢂll Pꢂckꢂge Lize  
16-Pin QLOP ꢅMAX1±67x  
24-Pin QLOP ꢅMAX1±68x  
Ordering Information  
Applications  
PꢁI-  
ꢁIꢀ  
PART  
TEMP RAIGE  
Motor Control  
PACKAGE ꢅꢀLBx  
Industrial Process Control  
Industrial I/O Modules  
MAX1±67ACEE  
MAX1067BCEE  
MAX1067CCEE  
MAX1067AEEE  
MAX1067BEEE  
MAX1067CEEE  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
16 QSOP  
16 QSOP  
16 QSOP  
16 QSOP  
16 QSOP  
16 QSOP  
0.5  
1
2
Data-Acquisition Systems  
Thermocouple Measurements  
Accelerometer Measurements  
0.5  
1
2
Ordering Information continued at end of data sheet.  
Pin Configurations appear at end of data sheet.  
SPI/QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corp.  
AutoShutdown is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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