參數(shù)資料
型號(hào)： EVAL-AD7708EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 15/44頁(yè)
文件大小： 0K
描述： BOARD EVAL FOR AD7708
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 1.37k
數(shù)據(jù)接口： 串行
輸入范圍： ±2.5 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 3.84mW @ 3V
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7708
已供物品： 板，CD
相關(guān)產(chǎn)品： AD7708BRZ-ND - IC ADC 16BIT R-R 8/10CH 28SOIC
AD7708BRUZ-REEL7-ND - IC ADC 16BIT R-R 8/10CH 28TSSOP
AD7708BRZ-REEL7-ND - IC ADC 16BIT R-R 8/10CH 28SOIC
AD7708BRZ-REEL-ND - IC ADC 16BIT R-R 8/10CH 28SOIC
AD7708BRUZ-REEL-ND - IC ADC 16BIT R-R 8/10CH 28TSSOP
AD7708BRUZ-ND - IC ADC 16BIT R-R 8/10CH 28-TSSOP
AD7708BRU-REEL7-ND - IC ADC 16BIT R-R 8/10CH 28-TSSOP
AD7708BRU-REEL-ND - IC ADC 16BIT R-R 8/10CH 28-TSSOP
AD7708BRU-ND - IC ADC 16BIT R-R 8/10CH 28-TSSOP
AD7708BR-REEL7-ND - IC ADC 16BIT R-R 8/10CH 28-SOIC
更多...
其它名稱(chēng)： EVAL-AD7708EB
EVAL-AD7708EB-ND
REV. 0
–22–
AD7708/AD7718
ON-CHIP REGISTERS
The AD7708 and AD7718 are controlled and configured via
a number of on-chip registers which are shown in Figure 15.
The first of these registers is the communications register
which is used to control all operations on these converters. All
communications with these parts must start with a write to
the communications register to specify the next operation to
be performed. After a power-on or RESET, the device defaults
to waiting for a write to the communications register. The
STATUS register contains information pertaining to the operat-
ing conditions of the converter. The STATUS register is a read
only register. The MODE register is used to configure the con-
version mode, calibration, chop enable/disable, reference select,
channel configuration and buffered or unbuffered operation on
the AINCOM analog input. The MODE register is a read/write
register. The ADC Control register is a read/write register used
to select the active channel and program its input range and
bipolar/unipolar operation. The I/O control register is a read/
write register used to configure the operation of the 2-pin I/O
port. The filter register is a read/write register used to program
the data update rate of the converter. The ADC Data register is
a read only register that contains the result of a data conversion
on the selected channel. The ADC offset registers are read/write
registers that contain the offset calibration data. There are five
offset registers, one for each of the fully differential input channels.
When configured for pseudo-differential input mode the chan-
nels share offset registers. The ADC gain registers are read/write
registers that contain the gain calibration data. There are five
ADC gain registers, one for each of the fully differential input
channels. When configured for pseudo differential input mode
the channels share gain registers. The ADC contains Test registers
for factory use only, the user is advised not to alter the oper-
ating conditions of these registers. The ID register is a read only
register and is used for silicon identification purposes. The follow-
ing sections contains more in-depth detail on all of these registers.
In the following descriptions, SET implies a Logic 1 state and
CLEARED implies a Logic 0 state unless otherwise stated.
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
WEN R/W
00
A1
A2
A3
A0
COMMUNICATIONS REGISTER
DOUT
DIN
REGISTER
SELECT
DECODER
ADC DATA REGISTER
STATUS REGISTER
MODE REGISTER
ADC CONTROL REGISTER
I/O CONTROL REGISTER
FILTER REGISTER
ID REGISTER
TEST REGISTER
ADC GAIN REGISTER
ADC OFFSET REGISTER
DIN
Figure 15. On-Chip Registers
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