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參數(shù)資料
| 型號： | DC1010A-C |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 9/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2487 |
| 軟件下載： | QuikEval System |
| 設(shè)計資源： | 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
17
2487fd
The rst input bit (SGL) following the 101 sequence de-
termines if the input selection is differential (SGL = 0) or
single-ended (SGL = 1). For SGL = 0, two adjacent channels
can be selected to form a differential input. For SGL = 1,
one of 4 channels is selected as the positive input. The
negative input is COM for all single-ended operations.
The remaining four bits (ODD, A2, A1, A0) determine
which channel(s) is/are selected and the polarity (for a
differential input).
Once the rst word is written into the device, a second
word may be input in order to select a conguration mode.
The rst bit of the second word is the enable bit for the
conversion conguration (EN2). If this bit is set to 0, then
the next conversion is performed using the previously
selected converter conguration.
The second set of conguration data can be loaded into
the device (see Table 4). The rst bit (IM) is used to select
the internal temperature sensor. If IM = 1, the following
conversion will be performed on the internal temperature
sensor rather than the selected input channel. The next two
bits (FA and FB) are used to set the rejection frequency.
The next bit (SPD) is used to select either the 1x output
rate if SPD = 0 (auto-calibration is enabled and the offset
is continuously calibrated and removed from the nal
conversion result) or the 2x output rate if SPD = 1 (offset
calibration disabled, multiplexing output rates up to 15Hz
with no latency). The nal three bits (GS2, GS1, GS0) are
used to set the gain. When IM = 1 (temperature measure-
ment) SPD, GS2, GS1 and GS0 will be ignored and the
device will operate in 1x mode.
APPLICATIONS INFORMATION
Table 4. Converter Conguration
1
0
EN SGL ODD A2 A1 A0 EN2
IM
FA
FB
SPD
GS2 GS1 GS0
CONVERTER CONFIGURATION
100
Any
Input
Channel
X
Keep Previous
1
0
1
0
X
Keep Previous
101
1
0
Any
Rejection
Mode
0
External Input, Gain = 1, Autocalibration
1
0
1
0
1
External Input, Gain = 4, Autocalibration
1
0
1
0
1
0
External Input, Gain = 8, Autocalibration
1
0
1
0
1
External Input, Gain = 16, Autocalibration
1
0
1
0
1
0
External Input, Gain = 32, Autocalibration
1
0
1
0
1
0
1
External Input, Gain = 64, Autocalibration
1
0
1
0
1
0
External Input, Gain = 128, Autocalibration
1
0
1
0
1
External Input, Gain = 264, Autocalibration
1
0
1
0
1
0
External Input, Gain = 1, 2x Speed
1
0
1
0
1
0
1
External Input, Gain = 2, 2x Speed
1
0
1
0
1
0
1
0
External Input, Gain = 4, 2x Speed
1
0
1
0
1
0
1
External Input, Gain = 8, 2x Speed
1
0
1
0
1
0
External Input, Gain = 16, 2x Speed
1
0
1
0
1
0
1
External Input, Gain = 32, 2x Speed
1
0
1
0
1
0
External Input, Gain = 64, 2x Speed
1
0
1
0
1
External Input, Gain = 128, 2x Speed
1
0
1
1000
Any
Speed
Any
Gain
External Input, Simultaneous 50Hz/60Hz Rejection
1
0
1
1001
External Input, 50Hz Rejection
1
0
1
1010
External Input, 60Hz Rejection
1
0
1
1011
Reserved, Do Not Use
1
0
1
1100
X
Temperature Input, Simultaneous 50Hz/60Hz Rejection
1
0
1
1101
X
Temperature Input, 50Hz Rejection
1
0
1
1110
X
Temperature Input, 60Hz Rejection
1
0
1
1111
X
Reserved, Do Not Use
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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 |
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