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MAX1240-MAX1241

更新时间： 2024-11-26 22:34:27
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美信 - MAXIM /
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16页 281K
描述
+2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO

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MAX1240-MAX1241 数据手册

 浏览型号MAX1240-MAX1241的Datasheet PDF文件第2页浏览型号MAX1240-MAX1241的Datasheet PDF文件第3页浏览型号MAX1240-MAX1241的Datasheet PDF文件第4页浏览型号MAX1240-MAX1241的Datasheet PDF文件第5页浏览型号MAX1240-MAX1241的Datasheet PDF文件第6页浏览型号MAX1240-MAX1241的Datasheet PDF文件第7页 
19-1155; Rev 2; 11/98  
+2 .7 V, Lo w -P o w e r,  
1 2 -Bit S e ria l ADCs in 8 -P in S O  
0/MAX241  
__________________Ge n e ra l De s c rip t io n  
________________________________Fe a t u re s  
The MAX1240/MAX1241 are low-power, 12-bit analog-  
to-digital converters (ADCs) available in 8-pin pack-  
ages. The MAX1240 operates with a single +2.7V to  
+3.6V supply, and the MAX1241 operates with a single  
+2.7V to +5.25V supply. Both devices feature a 7.5µs  
s uc c e s s ive -a p p roxima tion ADC, a fa s t tra c k/hold  
(1.5µs), an on-chip clock, and a high-speed, 3-wire ser-  
ial interface.  
♦ Single-Supply Operation:  
+2.7V to +3.6V (MAX1240)  
+2.7V to +5.25V (MAX1241)  
♦ 12-Bit Resolution  
♦ Internal 2.5V Reference (MAX1240)  
♦ Small Footprint: 8-Pin DIP/SO Packages  
♦ Low Power: 3.7µW (73ksps, MAX1240)  
3mW (73ksps, MAX1241)  
Power consumption is only 37mW (V  
= 3V) at the  
DD  
73ksps maximum sampling speed. A 2µA shutdown  
mode reduces power at slower throughput rates.  
66µW (1ksps, MAX1241)  
5µW (power-down mode)  
The MAX1240 has an internal 2.5V reference, while the  
MAX1241 requires an external reference. The MAX1241  
♦ Internal Track/Hold  
♦ SPI/QSPI/MICROWIRE 3-Wire Serial Interface  
♦ Internal Clock  
accepts signals from 0V to V  
, and the reference  
REF  
input range includes the positive supply rail. An exter-  
na l c loc k a c c e s s e s d a ta from the 3-wire inte rfa c e ,  
which connects directly to standard microcontroller I/O  
ports. The interface is compatible with SPI™, QSPI™,  
and MICROWIRE™.  
Ord e rin g In fo rm a t io n  
PIN-  
PACKAGE  
INL  
(LSB)  
PART  
TEMP. RANGE  
Excellent AC characteristics and very low power com-  
bined with ease of use and small package size make  
these converters ideal for remote-sensor and data-  
a c q uis ition a p p lic a tions , or for othe r c irc uits with  
demanding power consumption and space require-  
ments. The MAX1240/MAX1241 are available in 8-pin  
DIP and SO packages.  
MAX1240ACPA  
MAX1240BCPA  
MAX1240CCPA  
MAX1240ACSA  
MAX1240BCSA  
MAX1240CCSA  
MAX1240BC/D  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
8 Plastic DIP  
8 Plastic DIP  
8 Plastic DIP  
8 SO  
±1/2  
±1  
±1  
±1/2  
8 SO  
±1  
8 SO  
±1  
Dice*  
±1  
Ap p lic a t io n s  
Ordering Information continued at end of data sheet.  
*Dice are specified at T = +25°C, DC parameters only.  
A
Battery-Powered Systems  
Portable Data Logging  
Isolated Data Acquisition  
Process Control  
Fu n c t io n a l Dia g ra m  
V
DD  
1
Instrumentation  
7
8
CS  
SCLK  
P in Co n fig u ra t io n  
3
CONTROL  
LOGIC  
INT  
SHDN  
CLOCK  
TOP VIEW  
OUTPUT  
SHIFT  
6
DOUT  
REGISTER  
V
DD  
SCLK  
CS  
1
2
3
4
8
7
6
5
12-BIT  
SAR  
AIN  
SHDN  
REF  
2
4
T/H  
AIN  
REF  
MAX1240  
MAX1241  
DOUT  
GND  
2.5V REFERENCE  
(MAX1240 ONLY)  
MAX1240  
MAX1241  
5
GND  
DIP/SO  
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  
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