參數(shù)資料
型號(hào)： EVAL-AD7938CBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/36頁(yè)
文件大?。?/td> 0K
描述： EVAL BOARD FOR AD7938
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 12
采樣率（每秒）： 1.5M
數(shù)據(jù)接口： 并聯(lián)
輸入范圍： ±VREF
在以下條件下的電源（標(biāo)準(zhǔn)）： 13.5mW @ 5V
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD7938
已供物品： 板，CD
相關(guān)產(chǎn)品： AD7938BSUZ-6REEL7DKR-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BSUZ-6REEL7CT-ND - IC ADC 12BIT 8CHAN 32TQFP
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AD7938BSUZ-ND - IC ADC 12BIT 8CHAN 32TQFP
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AD7938BSUZ-6REEL7TR-ND - IC ADC 12BIT 8CHAN 32TQFP
AD7938BSUZ-REEL7-ND - IC ADC 12BIT 8CHAN 32TQFP
其它名稱： Q3627458
Data Sheet
AD7938/AD7939
Rev. C | Page 17 of 36
SHADOW REGISTER
The shadow register on the AD7938/AD7939 is an 8-bit, write-
only register. Data is loaded from DB0 to DB7 on the rising
edge of WR. The eight LSBs load into the shadow register. The
information is written into the shadow register provided that
the SEQ and SHDW bits in the control register were set to 0 and
1, respectively, in the previous write to the control register. Each
bit represents an analog input from Channel 0 through Channel 7.
A sequence of channels can be selected through which the
AD7938/AD7939 cycles with each consecutive conversion after
the write to the shadow register. To select a sequence of
channels to be converted, if operating in single-ended mode or
Pseudo Mode 2, the associated channel bit in the shadow
register must be set for each required analog input. When
operating in fully differential mode or Pseudo Mode 1, the
associated pair of channel bits must be set for each pair of
analog inputs required in the sequence. With each consecutive
CONVST pulse after the sequencer has been set up, the
AD7938/AD7939 progress through the selected channels in
ascending order, beginning with the lowest channel. This
continues until a write operation occurs with the SEQ and
SHDW bits configured in any way except 1, 0 (see Table 11).
When a sequence is set up in fully differential mode or Pseudo
Mode 1, the ADC does not convert on the inverse pairs (that is,
VIN1, VIN0). The bit functions of the shadow register are
outlined in Table 12. See the Analog Input Selection section for
further information on using the sequencer.
Table 12. Shadow Register Bit Functions
MSB
LSB
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
VIN7
VIN6
VIN5
VIN4
VIN3
VIN2
VIN1
VIN0
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EVAL-AD7939CB 制造商:Analog Devices 功能描述:EVALUATION CONTROL BOARD I.C. - Bulk
EVAL-AD7939CBZ 功能描述:BOARD EVALUATION FOR AD7939CBZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7940CB 制造商:AD 制造商全稱:Analog Devices 功能描述:3mW, 100kSPS, 14-Bit ADC in 6-Lead SOT-23
EVAL-AD7940CBZ 功能描述:BOARD EVALUATION AD7940 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
EVAL-AD7942CB 功能描述:BOARD EVALUATION FOR AD7942 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
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