- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄10340 > LTC2497CUHF#TRPBF (Linear Technology)IC ADC 16BIT W/PGA 38-QFN PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC2497CUHF#TRPBF |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 16/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT W/PGA 38-QFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 7.5 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 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： | 0°C ~ 70°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 38-WFQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 38-QFN（5x7） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類(lèi)型： | 16 個(gè)單端，雙極；8 個(gè)差分，雙極 |
| 配用： | DC1012A-B-ND - BOARD DELTA SIGMA ADC LTC2497 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)
LTC2497
2497fa
INPUT SIGNAL FREQUENCY (Hz)
INPUT
NORMAL
MODE
REJECTION
(dB)
2497 F16
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
fN
0
2fN 3fN 4fN 5fN 6fN 7fN 8fN
fN = fEOSC/5120
INPUT SIGNAL FREQUENCY (Hz)
250fN 252fN 254fN 256fN 258fN 260fN 262fN
INPUT
NORMAL
MODE
REJECTION
(dB)
2497 F17
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
fN = fEOSC/5120
Figure 17. Input Normal Mode Rejection at fS = 256 fN
Figure 16. Input Normal Mode Rejection at DC
The SINC4 digital filter provides excellent normal mode
rejection at all frequencies except DC and integer multiples
of the modulator sampling frequency (fS). The modulator
sampling frequency is fS = 15,360Hz while operating with
itsinternaloscillatorandfS=fEOSC/20whenoperatingwith
an external oscillator of frequency fEOSC.
Whenusingtheinternaloscillator,theLTC2497isdesigned
to reject line frequencies. As shown in Figure 16, rejection
nulls occur at multiples of frequency fN, where fN = 55Hz
for simultaneous 50Hz/60Hz rejection. Multiples of the
modulator sampling rate (fS = fN 256) only reject noise
to 15dB (see Figure 17); if noise sources are present at
these frequencies antialiasing will reduce their effects.
Theusercanexpecttoachievethislevelofperformance us-
ing the internal oscillator, as shown in Figure 18. Measured
values of normal mode rejection are shown superimposed
over the theoretical values.
Traditional high order delta-sigma modulators suffer from
potential instabilities at large input signal levels. The
proprietary architecture used for the LTC2497 third order
modulator resolves this problem and guarantees stability
with input signals 150% of full scale. In many industrial
applications, it is not uncommon to have microvolt level
signals superimposed over unwanted error sources with
several volts if peak-to-peak noise. Figure 19 shows mea-
surement results for the rejection of a 7.5V peak-to-peak
noise source (150% of full scale) applied to the LTC2497.
This curve shows that the rejection performance is main-
tained even in extremely noisy environments.
Output Data Rate
When using its internal oscillator, the LTC2497 produces
up to 7.5 samples per second (sps) with a notch frequency
of60Hz.Theactualoutputdataratedependsuponthelength
of the sleep and data output cycles which are controlled
applicaTions inForMaTion
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D38999/26FB98PNLC | CONN HSG PLUG 6POS STRGHT PINS |
| LTC1199IMS8#PBF | IC ADC 10BIT 450KHZ W/SD 8-MSOP |
| MAX9720AEUE+ | IC AMP AUDIO .05W STER 16TSSOP |
| MS27474T14F15S | CONN RCPT 15POS JAM NUT W/SCKT |
| LTC1197IMS8 | IC ADC 10BIT 500KHZ SHTDWN 8MSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2497IUHF#PBF | 功能描述:IC ADC 16BIT W/PGA 38-QFN RoHS:是 類(lèi)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(lèi)型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)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 |
| LTC2497IUHF#TRPBF | 功能描述:IC ADC 16BIT W/PGA 38-QFN RoHS:是 類(lèi)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(lèi)型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)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 |
| LTC2498CUHF | 制造商:Linear Technology 功能描述:ADC Single Delta-Sigma 7.5sps 24-bit Serial 38-Pin QFN EP |
| LTC2498CUHF#PBF | 功能描述:IC ADC 24BIT 16CH 38-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類(lèi)型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱(chēng):497-5435-6 |
| LTC2498CUHF#TRPBF | 功能描述:IC ADC 24BIT 16CH 38-QFN RoHS:是 類(lèi)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:1,000 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(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。