- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10300 > LTC2410CGN (Linear Technology)IC ADC 24BIT DIFF INP/REF 16SSOP PDF資料下載
參數(shù)資料
| 型號： | LTC2410CGN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 32/48頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 24BIT DIFF INP/REF 16SSOP |
| 標準包裝： | 100 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 7.5 |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 1mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-SSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個差分，雙極 |
| 配用： | DC575A-ND - BOARD DELTA SIGMA ADC LTC2410 |
| 其它名稱： | Q894257 |
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頁當前第32頁第33頁第34頁第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頁第45頁第46頁第47頁第48頁
LTC2410
38
APPLICATIO S I FOR ATIO
WU
U
mentation amplifier is used at low gain. If this amplifier is
used at a gain of 10, the gain error is only 10ppm and input
referred noise is reduced to 0.1
VRMS. The buffer stages
can also be configured to provide gain of up to 50 with high
gain stability and linearity.
Figure 49 shows an example of a single amplifier used to
produce single-ended gain. This topology is best used in
applications where the gain setting resistor can be made
to match the temperature coefficient of the strain gauges.
If the bridge is composed of precision resistors, with only
one or two variable elements, the reference arm of the
bridge can be made to act in conjunction with the feedback
resistor to determine the gain. If the feedback resistor is
incorporated into the design of the load cell, using resis-
tors which match the temperature coefficient of the load-
cell elements, good results can be achieved without the
need for resistors with a high degree of absolute accuracy.
The common mode voltage in this case, is again a function
of the bridge output. Differential gain as used with a 350
bridge is AV = (R1+ R2)/(R1+175). Common mode gain
is half the differential gain. The maximum differential
signal that can be used is 1/4 VREF, as opposed to 1/2 VREF
in the 2-amplifier topology above.
Remote Half Bridge Interface
As opposed to full bridge applications, typical half bridge
applications must contend with nonlinearity in the bridge
output, as signal swing is often much greater. Applications
include RTD’s, thermistors and other resistive elements
that undergo significant changes over their span. For
single variable element bridges, the nonlinearity of the half
bridge output can be eliminated completely; if the refer-
ence arm of the bridge is used as the reference to the ADC,
as shown in Figure 50. The LTC2410 can accept inputs up
to 1/2 VREF. Hence, the reference resistor R1 must be at
least 2x the highest value of the variable resistor.
In the case of 100
platinum RTD’s, this would suggest a
value of 800
for R1. Such a low value for R1 is not
advisable due to self-heating effects. A value of 25.5k is
shown for R1, reducing self-heating effects to acceptable
levels for most sensors.
The basic circuit shown in Figure 50 shows connections
for a full 4-wire connection to the sensor, which may be
located remotely. The differential input connections will
reject induced or coupled 60Hz interference, however, the
1Input referred noise for AV = 34 for approximately 0.05VRMS, whereas at a gain of 50, it would be
0.048
VRMS.
Figure 48. Using Autozero Amplifiers to Reduce Input Referred Noise
0.1
F
8
0.1
F
0.1
F
REF+
REF–
SDO
SCK
IN+
IN–
CS
GND
VCC
FO
312
5VREF
4
350
BRIDGE
13
5
6
2410 F48
11
1, 7, 8, 9,
10, 15, 16
2
14
LTC2410
RN1 = 5k
× 8 RESISTOR ARRAY
U1A, U1B, U2A, U2B = 1/2 LTC1051
–
+
3
2
8
4
U1A
4
5V
+
–
6
5
RN1
1
16
15
2
611
7
1
14
3
710
4
13
89
512
U1B
+
–
2
3
U2A
5V
1
+
–
6
5
U2B
7
相關PDF資料 |
PDF描述 |
|---|---|
| LTC1594CS#TRPBF | IC A/D CONV 12BIT SRL 4CH 16SOIC |
| LTC1594CS#TR | IC ADC 12BIT 5V 4CH SAMPL 16SOIC |
| LTC1594LCS#TRPBF | IC A/D CONV 12BIT SRL 4CH 16SOIC |
| MS27473E10A13S | CONN PLUG 13POS STRAIGHT W/SCKT |
| LTC1594LCS#TR | IC ADC 12BIT 3V 4CH SAMPL 16SOIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2410CGN#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 |
| LTC2410CGN#PBF | 制造商:Linear Technology 功能描述:A/D Converter (A-D) IC |
| LTC2410CGN#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 |
| LTC2410CGN#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 |
| LTC2410CGNPBF | 制造商:Linear Technology 功能描述:ADC,LTC2410C 24bit diff D-S SPI SSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復。