from the output code (DATAOUT" />
參數(shù)資料
型號： DC1009A-A
廠商： Linear Technology
文件頁數(shù)： 13/36頁
文件大?。?/td> 0K
描述： BOARD DELTA SIGMA ADC LTC2492
軟件下載： QuikEval System
設(shè)計資源： DC1009A Design File
DC1009A Schematic
標(biāo)準(zhǔn)包裝： 1
系列： Easy Drive™, QuikEval™
ADC 的數(shù)量： 1
位數(shù)： 24
采樣率（每秒）： 7.5
數(shù)據(jù)接口： MICROWIRE?，串行，SPI?
已用 IC / 零件： LTC2492
已供物品： 板
相關(guān)產(chǎn)品： LTC2492CDE#TRPBF-ND - IC ADC 24BIT DELTA SIG 14-DFN
LTC2492IDE#TRPBF-ND - IC ADC 24BIT DELTA SIG 14-DFN
LTC2492IDE#PBF-ND - IC ADC 24BIT DELTA SIG 14-DFN
LTC2492CDE#PBF-ND - IC ADC 24BIT DELTA SIG 14-DFN
LTC2492
20
2492fd
APPLICATIONS INFORMATION
Figure 4. Internal PTAT Digital Output vs Temperature
from the output code (DATAOUT24) for a 5V reference
using the following formula:
TK = DATAOUT24/314 in Kelvin
If a different value of VREF is used, the temperature output
is:
TK = DATAOUT24 VREF/1570 in Kelvin
If the value of VREF is not known, the slope is determined by
measuring the temperature sensor at a known temperature
TN (in °K) and using the following formula:
SLOPE = DATAOUT24/TN
This value of slope can be used to calculate further
temperature readings using:
TK = DATAOUT24/SLOPE
All Kelvin temperature readings can be converted to TC
(°C) using the fundamental equation:
TC = TK – 273
SERIAL INTERFACE TIMING MODES
The LTC2492’s 4-wire interface is SPI and MICROWIRE
compatible. This interface offers several exible modes
of operation. These include internal/external serial clock,
3- or 4-wire I/O, single cycle or continuous conversion. The
following sections describe each of these timing modes
in detail. In all cases, the converter can use the internal
oscillator (fO = LOW) or an external oscillator connected to
the fO pin. For each mode, the operating cycle, data input
format, data output format, and performance remain the
same. Refer to Table 5 for a summary.
Figure 5. Absolute Temperature Error
Table 5. Serial Interface Timing Modes
CONFIGURATION
SCK
SOURCE
CONVERSION
CYCLE CONTROL
DATA OUTPUT
CONTROL
CONNECTION AND
WAVEFORMS
External SCK, Single Cycle
Conversion
External
CS and SCK
Figures 6, 7
External SCK, 3-Wire I/O
External
SCK
Figure 8
Internal SCK, Single Cycle
Conversion
Internal
CS↓
Figures 9, 10
Internal SCK, 3-Wire I/O,
Continuous Conversion
Internal
Continuous
Internal
Figure 11
TEMPERATURE (K)
0
DATAOUT
24
60000
80000
100000
120000
140000
400
2492 F04
40000
0
300
200
100
20000
VCC = 5V
VREF = 5V
SLOPE = 314 LSB24/K
TEMPERATURE (°C)
–55
–30
–5
ABSOLUTE
ERROR
(°C)
5
4
3
2
1
–4
–3
–2
–1
0
120
95
70
45
20
2492 F05
–5
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DC1009A-B 功能描述:BOARD DELTA SIGMA ADC LTC2488 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
DC1009A-C 功能描述:BOARD DELTA SIGMA ADC LTC2486 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
DC100A10 功能描述:固態(tài)繼電器-工業(yè)安裝 SSR DC OUTPUT 10A 90-140VAC RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負(fù)載電壓額定值:7 VDC to 72 VDC 負(fù)載電流額定值:160 A 觸點形式: 輸出設(shè)備:SSR 安裝風(fēng)格:Panel
DC100A10C 功能描述:固態(tài)繼電器-工業(yè)安裝 SSR DC OUTPUT 10A 90-140VAC RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負(fù)載電壓額定值:7 VDC to 72 VDC 負(fù)載電流額定值:160 A 觸點形式: 輸出設(shè)備:SSR 安裝風(fēng)格:Panel
DC100A20 功能描述:固態(tài)繼電器-工業(yè)安裝 SSR DC OUTPUT 20A 90-140VAC RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負(fù)載電壓額定值:7 VDC to 72 VDC 負(fù)載電流額定值:160 A 觸點形式: 輸出設(shè)備:SSR 安裝風(fēng)格:Panel
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