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ADC0831B PDF预览

ADC0831B

更新时间: 2024-11-14 22:47:35
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德州仪器 - TI /
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9页 153K
描述
A/D PERIPHERALS WITH SERIAL CONTROL

ADC0831B 数据手册

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ADC0831A, ADC0832A, ADC0831B, ADC0832B  
A/D PERIPHERALS WITH SERIAL CONTROL  
SLAS006 – AUGUST 1985 – REVISED JUNE 1986  
ADC0831 . . . P PACKAGE  
(TOP VIEW)  
8-Bit Resolution  
Easy Microprocessor interface or  
Stand-Alone Operation  
CS  
IN+  
IN–  
V
CC  
CLK  
DO  
REF  
1
2
3
4
8
7
6
5
Operates Ratiometrically or With 5-V  
Reference  
Single Channel or Multiplexed Twin  
Channels With Single-Ended or Differential  
Input Options  
GND  
ADC0832 . . . P PACKAGE  
(TOP VIEW)  
Input Range 0 to 5 V With Single 5-V Supply  
Inputs and Outputs Are Compatible With  
TTL and MOS  
CS  
CH0  
CH1  
GND  
V
/REF  
CC  
1
2
3
4
8
7
6
5
Conversion Time of 32 µs at CLK = 250 kHz  
CLK  
DO  
DI  
Designed to Be interchangeable With  
National Semiconductor ADC0831 and  
ADC0832  
TOTAL UNADJUSTED ERROR  
DEVICE  
A-SUFFIX  
± 1 LSB  
B-SUFFIX  
± 1/2 LSB  
± 1/2 LSB  
ADC0831  
ADC0832  
± 1 LSB  
description  
These devices are 8-bit successive-approximation analog-to-digital converters. The ADC0831A and  
ADC0831B have single input channels; the ADC0832A and ADC0832B have multiplexed twin input channels.  
Theserialoutputisconfiguredtointerfacewithstandardshiftregistersormicroprocessors. Detailedinformation  
on interfacing to most popular microprocessors is readily available from the factory.  
The ADC0832 multiplexer is software configured for single-ended or differential inputs. The differential analog  
voltage input allows for common-mode rejection or offset of the analog zero input voltage value. In addition,  
the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits  
of resolution.  
The operation of the ADC0831 and ADC0832 devices is very similar to the more complex ADC0834 and  
ADC0838 devices. Ratiometric conversion can be attained by setting the REF input equal to the maximum  
analog input signal value, which gives the highest possible conversion resolution. Typically, REF is set equal  
to V  
(done internally on the ADC0832). For more detail on the operation of the ADC0831 and ADC0832  
CC  
devices, refer to the ADC0834/A DC0838 data sheet.  
The ADC0831AC, ADC0831BC, ADC0832AC, and ADC0832BC are characterized for operation from 0°C  
to 70°C. The ADC0831AI, ADC0831BI, ADC0832AI, and ADC0832BI are characterized for operation from  
40°C to 85°C.  
Copyright 1996, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  

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