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參數(shù)資料
| 型號： | DC1010A-C |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 13/32頁 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2487 |
| 軟件下載： | QuikEval System |
| 設(shè)計(jì)資源： | DC1010A Design File DC1010A Schematic |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 15 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 已用 IC / 零件： | LTC2487 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | LTC2487IDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487CDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487CDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487IDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN |
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LTC2487
20
2487fd
Figure 6. Conversion Sequence
Figure 7. Consecutive Reading with the Same Input/Conguration
Table 6. Address Assignment
CA1
CA0
ADDRESS
LOW
0010100
LOW
HIGH
0010110
LOW
FLOAT
0010101
HIGH
LOW
0100110
HIGH
0110100
HIGH
FLOAT
0100111
FLOAT
LOW
0010111
FLOAT
HIGH
0100101
FLOAT
0100100
APPLICATIONS INFORMATION
read operation, a new conversion automatically begins.
At the conclusion of the conversion cycle, the next result
may be read using the method described above. If the
conversion cycle is not concluded and a valid address
selects the device, the LTC2487 generates a NAK signal
indicating the conversion cycle is in progress.
Continuous Read/Write
Once the conversion cycle is concluded, the LTC2487 can
be written to and then read from using the Repeated Start
(Sr) command.
Figure 8 shows a cycle which begins with a data Write, a
repeated Start, followed by a Read and concluded with a
Stop command. The following conversion begins after all
24 bits are read out of the device or after a Stop command.
The following conversion will be performed using the newly
programmed data. In cases where the same speed (1x/2x
mode), rejection frequency (50Hz, 60Hz, 50Hz and 60Hz)
and gain is used but the channel is changed, a Stop or
Repeated Start may be issued after the rst byte (channel
selection data) is written into the device.
Discarding a Conversion Result and Initiating a New
Conversion with Optional Write
At the conclusion of a conversion cycle, a write cycle
can be initiated. Once the write cycle is acknowledged, a
Stop command will start a new conversion. If a new input
channel or conversion conguration is required, this data
S
ACK
DATA
Sr
DATA TRANSFERRING
P
7-BIT ADDRESS
R/W
2487 F06
CONVERSION
SLEEP
DATA INPUT/OUTPUT
7-BIT ADDRESS
SS
RR
ACK
READ
PP
2487 F07
CONVERSION
ADDRESS
SLEEP
DATA OUTPUT
DATA INPUT
SLEEP
Operation Sequence
The LTC2487 acts as a transmitter or receiver, as shown
in Figure 6. The device may be programmed to perform
several functions. These include input channel selection,
measure the internal temperature, selecting the line fre-
quency rejection (50Hz, 60Hz, or simultaneous 50Hz and
60Hz), a 2x speed mode and gain.
Continuous Read
In applications where the input channel/conguration does
not need to change for each cycle, the conversion can be
continuously performed and read without a write cycle
(see Figure 7). The conguration/input channel remains
unchanged from the last value written into the device. If
the device has not been written to since power up, the
conguration is set to the default value. At the end of a
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| DC1011A-A | 功能描述:BOARD DELTA SIGMA ADC LTC2498 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 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 |
| DC1011A-B | 功能描述:BOARD DELTA SIGMA ADC LTC2496 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 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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