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MAX1132

更新时间: 2024-11-30 22:57:55
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19页 388K
描述
16-Bit ADC, 200ksps, 5V Single-Supply with Reference

MAX1132 数据手册

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19-2083; Rev 0; 8/01  
16-Bit ADC, 200ksps, 5V Single-Supply  
with Reference  
General Description  
Features  
The MAX1132/MAX1133 are 200ksps, 16-bit ADCs.  
These serially interfaced ADCs connect directly to  
SPI™, QSPI™, and MICROWIRE™ devices without  
external logic. They combine an input scaling network,  
internal track/hold, clock, a +4.096V reference, and  
three general-purpose digital output pins (for external  
multiplexer or PGA control) in a 20-pin SSOP package.  
The excellent dynamic performance (SINAD 85dB),  
high-speed (200ksps), and low power (7.5mA) of these  
ADCs, make them ideal for applications such as indus-  
trial process control, instrumentation, and medical  
applications. The MAX1132 accepts input signals of 0  
to +12V (unipolar) or 12V (bipolar), while the  
MAX1133 accepts input signals of 0 to +4.096V (unipo-  
lar) or 4.096V (bipolar). Operating from a single  
+4.75V to +5.25V analog supply and a +4.75V to  
+5.25V digital supply, power-down modes reduce  
current consumption to 1mA at 10ksps and further  
reduce supply current to less than 20µA at slower data  
rates. A serial strobe output (SSTRB) allows direct con-  
nection to the TMS320 family of digital signal proces-  
sors. The MAX1132/MAX1133 user can select either the  
internal clock, or an external serial-interface clock for  
the ADC to perform analog-to-digital conversions.  
o 200ksps (Bipolar) and 150ksps (Unipolar)  
Sampling ADC  
o 16-Bits, No Missing Codes  
o 1.5LSB INL Guaranteed  
o 85dB (min) SINAD  
o +5V Single-Supply Operation  
o Low-Power Operation, 7.5mA (Unipolar Mode)  
o 2.5µA Shutdown Mode  
o Software-Configurable Unipolar and Bipolar Input  
Ranges  
0 to +12V and 12V (MAꢀ11ꢁ2)  
0 to +4.096V and 4.096V (MAꢀ11ꢁꢁ)  
Internal or External Reference  
o Internal or External Clock  
o SPI/QSPI/MICROWIRE-Compatible Serial Interface  
o Three User-Programmable Logic Outputs  
o Small 20-Pin SSOP Package  
The MAX1132/MAX1133 feature internal calibration cir-  
cuitry to correct linearity and offset errors. On-demand  
calibration allows the user to optimize performance.  
Three user-programmable logic outputs are provided  
for the control of an 8-channel mux or a PGA.  
Ordering Information  
INL  
PART  
TEMP. RANGE PIN-PACKAGE  
(LSB)  
MAꢀ11ꢁ2ACAP*  
0°C to +70°C 20 SSOP  
0°C to +70°C 20 SSOP  
1.5  
2.5  
MAX1132BCAP  
Applications  
Ordering Information continued at end of data sheet.  
Industrial Process Control  
Industrial I/O Modules  
Pin Configuration  
Data-Acquisition Systems  
Medical Instruments  
TOP VIEW  
REF  
REFADJ  
AGND  
1
2
20  
AIN  
Portable and Battery-Powered Equipment  
19 AGND  
CREF  
CS  
3
18  
17  
AV  
DD  
4
MAX1132  
MAX1133  
DGND  
SHDN  
P2  
5
16 DIN  
15 DV  
6
DD  
DGND  
7
14  
13 SCLK  
12  
Functional Diagram appears at end of data sheet.  
Typical Application Circuit appears at end of data sheet.  
P1  
8
P0  
9
RST  
11 DOUT  
SPI and QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corp.  
SSTRB  
10  
SSOP  
________________________________________________________________ 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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