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MAX1243

更新时间： 2024-11-06 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
13页 165K
描述
+2.7V至+5.25V、低功耗、10位串行ADC，SO-8封装

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MAX1243 数据手册

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MAX1242/MAX1243  
+2.7V to +5.25V, Low-Power, 10-Bit  
Serial ADCs in SO-8  
__________________General Description  
________________________________Features  
o +2.7V to +5.25V Single-Supply Operation  
o 10-Bit Resolution  
The MAX1242/MAX1243 are low-power, 10-bit analog-  
to-digital converters (ADCs) available in 8-pin pack-  
ages. They operate with a single +2.7V to +5.25V  
supply and feature a 7.5µs successive-approximation  
ADC, a fast track/hold (1.5µs), an on-chip clock, and a  
high-speed, 3-wire serial interface.  
o Internal 2.5V Reference (MAX1242)  
o Small Footprint: 8-Pin DIP and SO Packages  
o Low Power: 3.7mW (73ksps, MAX1242)  
3mW (73ksps, MAX1243)  
Power consumption is only 3mW (V  
= 3V) at the  
DD  
73ksps maximum sampling speed. A 2µA shutdown  
mode reduces power at slower throughput rates.  
66µW (1ksps, MAX1243)  
5µW (Power-Down Mode)  
The MAX1242 has an internal 2.5V reference, while the  
MAX1243 requires an external reference. The MAX1243  
o Internal Track/Hold  
®
o SPI/QSPI™/MICROWIRE 3-Wire Serial Interface  
accepts signals from 0V to V  
, and the reference  
REF  
input range includes the positive supply rail. An exter-  
nal clock accesses data from the 3-wire interface,  
which connects directly to standard microcontroller I/O  
ports. The interface is compatible with SPI, QSPI™, and  
o Pin-Compatible 12-Bit Upgrades: MAX1240/MAX1241  
_________________Ordering Information  
®
MICROWIRE .  
TEMP  
PIN-  
INL  
PART  
RANGE  
PACKAGE  
(LSB)  
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-  
acquisition applications, or for other circuits with  
demanding power consumption and space require-  
ments. The MAX1242/MAX1243 are available in 8-pin  
PDIP and SO packages.  
1
MAX1242ACPA+  
MAX1242BCPA+  
MAX1242ACSA+  
MAX1242BCSA+  
MAX1242AEPA+  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
8 PDIP  
8 PDIP  
8 SO  
/
2
1
1
/
2
8 SO  
1
1
8 PDIP  
/
2
Applications  
Ordering Information continued at end of data sheet.  
Note: Order the MAX1242A in place of the MAX1242C. Order the  
MAX1242B in place of the MAX1242D.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
Portable Data Logging  
Test Equipment  
Process Control Monitoring  
Temperature Measurement  
Isolated Data Acquisition  
________________Functional Diagram  
Pin Configuration  
V
DD  
1
7
CS  
8
SCLK  
TOP VIEW  
3
2
CONTROL  
LOGIC  
INT  
CLOCK  
SHDN  
OUTPUT  
SHIFT  
6
DOUT  
+
REGISTER  
V
DD  
SCLK  
8
1
2
3
4
10-BIT  
SAR  
AIN  
SHDN  
REF  
T/H  
MAX1242  
MAX1243  
CS  
7
6
5
AIN  
DOUT  
GND  
2.5V  
REFERENCE  
MAX1242  
MAX1243  
MAX1242 ONLY  
4
REF  
PDIP/SO  
5
GND  
QSPI is a trademark of Motorola, Inc. MICROWIRE is a registered trademark of National Semiconductor Corp.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-1156; Rev 3; 1/12  
1234567...13

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MAX1243AESA+T MAXIM

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 		+2.7V to %.25V, Low-Power, 10-Bit Serial ADCs in SO-8

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