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參數(shù)資料
| 型號： | DC956A |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 24/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2485 |
| 軟件下載： | QuikEval System |
| 設(shè)計(jì)資源： | DC956A Design File DC956A 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）： | 6.8 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 工作溫度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2485 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | LTC2485CDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485IDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485IDD#PBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485CDD#PBF-ND - IC ADC 24BIT I2C 10-DFN |
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LTC2485
30
2485fc
APPLICATIONS INFORMATION
The user can expect to achieve this level of performance
using the internal oscillator as it is demonstrated by
Figures 35, 36 and 37. Typical measured values of the
normal mode rejection of the LTC2485 operating with an
internal oscillator and a 60Hz notch setting are shown in
Figure 35 superimposed over the theoretical calculated
curve. Similarly, the measured normal mode rejection of
the LTC2485 for the 50Hz rejection mode and 50Hz/60Hz
rejection mode are shown in Figures 36 and 37.
As a result of these remarkable normal mode specica-
tions, minimal (if any) antialias ltering is required in front
of the LTC2485. If passive RC components are placed in
front of the LTC2485, the input dynamic current should
be considered (see Input Current section). In this case,
the differential input current cancellation feature of the
LTC2485 allows external RC networks without signicant
degradation in DC performance.
Traditional high order delta-sigma modulators, while
providing very good linearity and resolution, suffer
from potential instabilities at large input signal levels.
The proprietary architecture used for the LTC2485 third
order modulator resolves this problem and guarantees a
predictable stable behavior at input signal levels of up to
150% of full-scale. In many industrial applications, it is
not uncommon to have to measure microvolt level signals
superimposed on volt level perturbations and the LTC2485
is eminently suited for such tasks. When the perturbation
is differential, the specication of interest is the normal
mode rejection for large input signal levels. With a refer-
ence voltage VREF = 5V, the LTC2485 has a full-scale dif-
ferential input range of 5V peak-to-peak. Figures 38 and
39 show measurement results for the LTC2485 normal
mode rejection ratio with a 7.5V peak-to-peak (150% of
full scale) input signal superimposed over the more tradi-
tional normal mode rejection ratio results obtained with a
5V peak-to-peak (full-scale) input signal. In Figure 38, the
LTC2485 uses the internal oscillator with the notch set at
60Hz and in Figure 39 it uses the internal oscillator with
the notch set at 50Hz. It is clear that the LTC2485 rejection
performance is maintained with no compromises in this
extreme situation. When operating with large input signal
levels, the user must observe that such signals do not
violate the device absolute maximum ratings.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 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 |
| DC95F103WN | 制造商:GE Sensing & Inspection Technologies 功能描述:Thermistor 10 PCB Mount Mtg Type 1.5Lead Bare Tinned Copper 0 +70 制造商:GE Sensing & Inspection Technologies / Thermometrics 功能描述:THERMISTOR NTC +60 10KOHM 制造商:GE Measurement & Control 功能描述:+/-.2oC (0oC - 70oC) Interchangeable Chip 制造商:GE MEASUREMENT & CONTROL/GE SENSING 功能描述:THERMISTOR, NTC, +60C, 10KOHM; Thermistor Type:NTC; Resistance:10kohm; Thermistor Case Style:Radial Leaded; No. of Pins:2; Operating Temperature Min:-40C; Operating Temperature Max:60C; Operating Temperature Range:-40C to +60C ;RoHS Compliant: Yes |
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