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參數(shù)資料
| 型號： | EVAL-AD7853CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| 中文描述： | 3 V至5 V單電源，200 kSPS的12位采樣ADC |
| 文件頁數(shù)： | 27/34頁 |
| 文件大?。?/td> | 350K |
| 代理商： | EVAL-AD7853CB |
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REV. B
–27–
AD7853/AD7853L
CONFIGURING THE AD7853/AD7853L
AD7853/AD7853L as a Read-Only ADC
The AD7853/AD7853L contains fourteen on-chip registers
which can be accessed via the serial interface. In the majority of
applications it will not be necessary to access all of these regis-
ters. Figure 38 outlines a flowchart of the sequence which is
used to configure the AD7853/AD7853L as a Read-Only ADC.
In this case there is no writing to the on-chip registers and only
the conversion result data is read from the part. Interface Mode
1 cannot be used in this case as it is necessary to write to the
control register to set Interface Mode 1. Here the CLKIN signal
is applied directly after power-on, the CLKIN signal must be
present to allow the part to perform a calibration. This auto-
matic calibration will be completed approximately 32 ms after
the AD7853 has powered up (4 MHz CLK).
SERIAL
INTERFACE
MODE
POWER-ON, APPLY CLKIN SIGNAL,
WAIT FOR AUTOMATIC CALIBRATION
DIN CONNECTED TO DGND
NO
YES
START
WAIT FOR BUSY SIGNAL
TO GO LOW
PULSE
CONVST
PIN
READ
DATA
DURING
CONVERSION
WAIT APPROXIMATLY 200ns
AFTER
CONVST
RISING EDGE
APPLY
SYNC
(IF REQUIRED), SCLK AND READ
CONVERSION RESULT ON DOUT PIN
PULSE
CONVST
PIN
SYNC
AUTOMATICALLY GOES LOW
AFTER
CONVST
RISING EDGE
SCLK AUTOMATICALLY ACTIVE, READ
CONVERSION RESULT ON DOUT PIN
4, 5
2, 3
Figure 40. Flowchart for Setting Up and Reading from the AD7853/AD7853L
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| EVAL-AD7854CB | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
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| EVAL-AD7854CB | 制造商:Analog Devices 功能描述:EVALUATION CONTROL BOARD - Bulk |
| EVAL-AD7856CB | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V Single Supply, 8-Channel 14-Bit 285 kSPS Sampling ADC |
| EVAL-AD7858CB | 制造商:Analog Devices 功能描述:EVALUATION CONTROL BOARD - Bulk |
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| EVAL-AD7859CB | 制造商:Analog Devices 功能描述:Evaluation Board For 3V To 5V, 12-Bit 200KSPS, Multi-Channel, Sampling ADC |
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