參數(shù)資料
型號(hào)： LTC2480
廠商： Linear Technology Corporation
英文描述： 16-Bit ADC with Easy Drive
中文描述： 16位ADC的易道
文件頁(yè)數(shù)： 35/40頁(yè)
文件大?。?/td> 535K
代理商： LTC2480
35
LTC2480
2480f
APPLICATIU
W
U
U
Figure 34. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full Scale (60Hz Notch)
Figure 35. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full Scale (50Hz Notch)
Figure 36. Input Normal Mode Rejection vs Input Frequency
with Input Perturbation of 100% Full Scale (50Hz/60Hz Mode)
INPUT FREQUENCY (Hz)
0
15
30
45
60
75
90
105 120 135 150 165 180 195 210 225 240
N
2480 F34
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
°
C
MEASURED DATA
CALCULATED DATA
INPUT FREQUENCY (Hz)
0
12.5
25
37.5
50
62.5
75
87.5 100 112.5 125 137.5 150 162.5 175 187.5 200
N
2480 F35
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
°
C
MEASURED DATA
CALCULATED DATA
INPUT FREQUENCY (Hz)
0
20
40
60
80
100
120
140
160
180
200
220
N
2483 F36
0
–20
–40
–60
–80
–100
–120
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
V
IN(P-P)
= 5V
T
A
°
C
MEASURED DATA
CALCULATED DATA
As a result of these remarkable normal mode specifica-
tions, minimal (if any) antialias filtering is required in front
of the LTC2480. If passive RC components are placed in
front of the LTC2480, the input dynamic current should be
considered (see Input Current section). In this case, the
differential input current cancellation feature of the LTC2480
allows external RC networks without significant degrada-
tion in DC performance.
Traditional high order delta-sigma modulators, while pro-
viding very good linearity and resolution, suffer from po-
tential instabilities at large input signal levels. The
proprietary architecture used for the LTC2480 third order
modulator resolves this problem and guarantees a pre-
dictable stable behavior at input signal levels of up to 150%
of full scale. In many industrial applications, it is not un-
common to have to measure microvolt level signals super-
imposed over volt level perturbations and the LTC2480 is
eminently suited for such tasks. When the perturbation is
differential, the specification of interest is the normal mode
rejection for large input signal levels. With a reference
voltage V
REF
= 5V, the LTC2480 has a full-scale differen-
tial input range of 5V peak-to-peak. Figures 37 and 38
show measurement results for the LTC2480 normal mode
rejection ratio with a 7.5V peak-to-peak (150% of full scale)
input signal superimposed over the more traditional nor-
mal mode rejection ratio results obtained with a 5V peak-
to-peak (full scale) input signal. In Figure 37, the LTC2480
uses the internal oscillator with the notch set at 60Hz (F
O
= LOW) and in Figure 38 it uses the internal oscillator with
the notch set at 50Hz. It is clear that the LTC2480 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.
Using the 2x speed mode of the LTC2480, the device
bypasses the digital offset calibration operation to double
the output data rate. The superior normal mode rejection
is maintained as shown in Figures 30 and 31. However, the
magnified details near DC and f
S
= 256f
N
are different, see
Figures 39 and 40. In 2x speed mode, the bandwidth is
11.4Hz for the 50Hz rejection mode, 13.6Hz for the 60Hz
rejection mode and 12.4Hz for the 50Hz/60Hz rejection
superimposed over the theoretical calculated curve. Simi-
larly, the measured normal mode rejection of the LTC2480
for the 50Hz rejection mode and 50Hz/60Hz rejection mode
are shown in Figures 35 and 36.
相關(guān)PDF資料
PDF描述
LTC2480IDD 16-Bit ADC with Easy Drive
LTC2480CDD 16-Bit ADC with Easy Drive
LTC2486 16-Bit 2-/4-Channel ツヒ ADC with PGA and Easy Drive Input Current Cancellation
LTC2486CDE 16-Bit 2-/4-Channel ツヒ ADC with PGA and Easy Drive Input Current Cancellation
LTC2486IDE 16-Bit 2-/4-Channel ツヒ ADC with PGA and Easy Drive Input Current Cancellation
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2480CDD 制造商:Linear Technology 功能描述:ADC Single Delta-Sigma 7.5sps 16-bit Serial 10-Pin DFN EP
LTC2480CDD#PBF 功能描述:IC ADC 16BIT 10-DFN 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(biāo)準(zhǔn)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(yīng)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(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
LTC2480CDD#TR 制造商:Linear Technology 功能描述:ADC Single Delta-Sigma 7.5sps 16-bit Serial 10-Pin DFN EP T/R
LTC2480CDD#TRPBF 功能描述:IC ADC 16BIT 10-DFN 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(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC2480CDDPBF 制造商:Linear Technology 功能描述:16-Bit ADC Easy Drive Current Canc.DFN10
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*