- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377769 > LTC2410IGN (LINEAR TECHNOLOGY CORP) 24-Bit No Latency ADC with Differential Input and Differential Reference PDF資料下載
參數(shù)資料
| 型號： | LTC2410IGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 24-Bit No Latency ADC with Differential Input and Differential Reference |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 35/44頁 |
| 文件大?。?/td> | 778K |
| 代理商： | LTC2410IGN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁當前第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
LTC2410
35
APPLICATIU
W
U
U
reference inputs do not have the same rejection. If 60Hz or
other noise is present on the reference input, a low pass
filter is recommended as shown in Figure 50. Note that you
cannot place a large capacitor directly at the junction of R1
and R2, as it will store charge from the sampling process.
A better approach is to produce a low pass filter decoupled
from the input lines with a high value resistor (R3).
The use of a third resistor in the half bridge, between the
variable and fixed elements gives essentially the same
result as the two resistor version, but has a few benefits.
If, for example, a 25k reference resistor is used to set the
excitation current with a 100
RTD, the negative refer-
ence input is sampling the same external node as the
positive input, but may result in errors if used with a long
cable. For short cable applications, the errors may be
acceptalby low. If instead the single 25k resistor is re-
placed with a 10k 5% and a 10k 0.1% negative reference
resistor, the noise level introduced at the reference, at
least at higher frequencies, will be reduced. A filter can be
introduced into the network, in the form of one or more
capacitors, or ferrite beads, as long as the sampling pulses
are not translated into an error. The reference voltage is
also reduced, but this is not undesirable, as it will decrease
the value of the LSB, although, not the input referred noise
level.
The circuit shown in Figure 50 shows a more rigorous
example of Figure 49, with increased noise suppression
and more protection for remote applications.
Figure 51 shows an example of gain in the excitation circuit
and remote feedback from the bridge. The LTC1043’s
provide voltage multiplication, providing
±
10V from a 5V
reference with only 1ppm error. The amplifiers are used at
unity-gain and, hence, introduce a very little error due to
gain error or due to offset voltages. A 1
μ
V/
°
C offset voltage
drift translates into 0.05ppm/
°
C gain error. Simpler alter-
natives, with the amplifiers providing gain using resistor
arrays for feedback, can produce results that are similar to
bridge sensing schemes via attenuators. Note that the
amplifiers must have high open-loop gain or gain error will
be a source of error. The fact that input offset voltage has
relatively little effect on overall error may lead one to use
low performance amplifiers for this application. Note that
the gain of a device such as an LF156, (25V/mV over
temperature) will produce a worst-case error of –180ppm
at a noise gain of 3, such as would be encountered in an
inverting gain of 2, to produce –10V from a 5V reference.
Figure 48. Bridge Amplification Using a Single Amplifier
0.1
μ
F
5V
REF
+
REF
–
IN
+
IN
–
GND
V
CC
3
3
2
4
6
7
4
350
BRIDGE
5
6
2410 F48
1, 7, 8, 9,
10, 15, 16
2
LTC2410
–
+
LTC1050S8
5V
0.1
μ
V
R2
46.4k
20k
20k
175
1
μ
F
10
μ
F
R1
4.98k
(
)
A
V
= 9.98 1 +
46.4k
4.99k + 175
+
+
1
μ
F
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC2410 | 20-Bit Universal Bus Driver With 3-State Outputs 56-SSOP -40 to 85 |
| LTC2410C | 20-Bit Universal Bus Driver With 3-State Outputs 56-TVSOP -40 to 85 |
| LTC2410I | 20-Bit Universal Bus Driver With 3-State Outputs 56-SSOP -40 to 85 |
| LTC2411 | 2.7V to 5.5V Micropower 24-Bit Differential Σ△ Analog to Digital Converter(2.7V ～5.5V，微功耗，24位差分Σ△串行模數(shù)轉(zhuǎn)換器) |
| LTC2413CGN | 24-Bit No Latency ADC, with Simultaneous 50Hz/60Hz Rejection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2410IGN#PBF | 功能描述:IC ADC 24BIT DIFF INP/REF 16SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC2410IGN#TR | 功能描述:IC ADC 24BIT DIFF INP/REF 16SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC2410IGN#TRPBF | 功能描述:IC ADC 24BIT DIFF INP/REF 16SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC2410IGNPBF | 制造商:Linear Technology 功能描述:ADC 7.5sps 24-Bit Serial SSOP16 |
| LTC2411-1CMS | 功能描述:IC A/DCONV DIFF INPUT&REF 10MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
發(fā)布緊急采購，3分鐘左右您將得到回復。