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參數(shù)資料
型號(hào)： DC955A
廠商： Linear Technology
文件頁數(shù)： 13/34頁
文件大?。?/td> 0K
描述： BOARD DELTA SIGMA ADC LTC2483
軟件下載： QuikEval System
設(shè)計(jì)資源： DC955A Design File
DC955A 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）： 6.8
數(shù)據(jù)接口： I²C，串行
工作溫度： 0°C ~ 70°C
已用 IC / 零件： LTC2483
已供物品： 板
相關(guān)產(chǎn)品： LTC2483IDD#TRPBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2483CDD#TRPBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2483IDD#PBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2483CDD#PBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2483
0
2483fc
gain performance without significant benefits of reference
filtering and the user is advised to avoid them.
Larger values of reference capacitors (CREF > 1nF) may be
requiredasreferencefiltersincertainconfigurations.Such
capacitors will average the reference sampling charge and
the external source resistance will see a quasi constant
reference differential impedance.
In the following discussion, it is assumed the input and
reference common mode are the same. For the internal
oscillator, the related difference resistance is 1.1MΩ and
applicaTions inFormaTion
Figure 11. +FS Error vs RSOURCE at REF+ or REF– (Small CREF)
RSOURCE ()
0
+FS
ERROR
(ppm)
50
70
90
10k
2483 F11
30
10
40
60
80
20
0
–10
10
100
1k
100k
VCC = 5V
VREF = 5V
VIN+ = 3.75V
VIN– = 1.25V
TA = 25°C
CREF = 0.01F
CREF = 0.001F
CREF = 100pF
CREF = 0pF
the resulting full-scale error is 0.46ppm for each ohm of
source resistance driving the REF+ and REF– pins. When
CA0/F0 is driven by an external oscillator with a frequency
fEOSC (external conversion clock operation), the typical
differential reference resistance is 0.30 1012/fEOSC Ω
and each ohm of source resistance driving the REF+ or
REF– pins will result in 1.67 10–6 fEOSCppm gain error.
The typical +FS and –FS errors for various combinations
of source resistance seen by the REF+ or REF– pins and
external capacitance connected to that pin are shown in
Figures 11-14.
Figure 12. –FS Error vs RSOURCE at REF+ or REF– (Small CREF)
RSOURCE ()
0
–FS
ERROR
(ppm) –30
–10
10
10k
2483 F12
–50
–70
–40
–20
0
–60
–80
–90
10
100
1k
100k
VCC = 5V
VREF = 5V
VIN+ = 1.25V
VIN– = 3.75V
TA = 25°C
CREF = 0.01F
CREF = 0.001F
CREF = 100pF
CREF = 0pF
Figure 13. +FS Error vs RSOURCE at REF+ or REF– (Large CREF)
RSOURCE ()
0
+FS
ERROR
(ppm) 300
400
500
800
2483 F13
200
100
0
200
400
600
1000
VCC = 5V
VREF = 5V
VIN+ = 3.75V
VIN– = 1.25V
TA = 25°C
CREF = 1F, 10F
CREF = 0.1F
CREF = 0.01F
Figure 14. –FS Error vs RSOURCE at REF+ or REF– (Large CREF)
RSOURCE ()
0
–FS
ERROR
(ppm) –200
–100
0
800
2483 F14
–300
–400
–500
200
400
600
1000
VCC = 5V
VREF = 5V
VIN+ = 1.25V
VIN– = 3.75V
TA = 25°C
CREF = 1F, 10F
CREF = 0.1F
CREF = 0.01F
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DC956A 功能描述:BOARD DELTA SIGMA ADC LTC2485 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
DC959A 制造商:Linear Technology 功能描述:BOARD DEMO LTC4257-1 制造商:Linear Technology 功能描述:EVAL BOARD, LTC4257CDD-1 POE
DC95F103V 功能描述:熱敏電阻 - NTC 10KOhms +-.1C Epoxy Coated RoHS:否 制造商:EPCOS 電阻:10 kOhms 功率額定值:150 mW 容差:2 % 端接類型:Radial 系列:B57703M 工作溫度范圍:- 55 C to + 125 C
DC95F103VN 制造商:GE Sensing & Inspection Technologies 功能描述:Thermistor;10;PCB Mount Mtg. Type;1.5In Lead;Bare Tinned Copper 制造商:GE Measurement & Control 功能描述:+/-.1oC (0oC - 70oC) Interchangeable Chip
DC95F103W 功能描述:熱敏電阻 - NTC 10KOhms +-.2C Epoxy Coated RoHS:否 制造商:EPCOS 電阻:10 kOhms 功率額定值:150 mW 容差:2 % 端接類型:Radial 系列:B57703M 工作溫度范圍:- 55 C to + 125 C
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