- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373915 > AD7731BRU (ANALOG DEVICES INC) Low Noise, High Throughput 24-Bit Sigma-Delta ADC PDF資料下載
參數(shù)資料
| 型號： | AD7731BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Low Noise, High Throughput 24-Bit Sigma-Delta ADC |
| 中文描述： | 6-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | MO-153AD, TSSOP-24 |
| 文件頁數(shù)： | 27/44頁 |
| 文件大?。?/td> | 411K |
| 代理商： | AD7731BRU |
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頁當前第27頁第28頁第29頁第30頁第31頁第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
AD7731
–27–
REV. 0
Nonchop Mode (SKIP = 0, CHP = 0)
With CHOP mode disabled and SK IP mode disabled, the only
function of the second stage filter is to give the overall frequency
response. Figure 11 shows the frequency response for the AD7731
with the second stage filter is set for normal FIR operation, chop
mode disabled, the decimal equivalent of the word in the SF bits
set to 1536 and a master clock frequency of 4.9152 MHz. T he
response is analogous to that of Figure 9 with the three-times
larger SF word producing the same 200 Hz output rate. Once
again, the response will scale proportionally with master clock
frequency. T he response is shown from dc to 100 Hz. T he re-
jection at 50 Hz
±
1 Hz and 60 Hz
±
1 Hz is better than 88 dB.
T he –3 dB frequency for the frequency response of the AD7731
with the second stage filter set for normal FIR operation and
chop mode enabled is determined by the following relationship:
f
3
dB
=
0.039
×
f
MOD
×
1
SF
CHP
=
0
(
)
In this case,
f
3
dB
=
7.8 Hz
and the stop-band, where the attenu-
ation is greater than 64.5 dB, is determined by:
f
STOP
=
0.14
×
f
MOD
×
1
SF
CHP
=
0
(
)
In this case,
f
STOP
=
28 Hz.
FREQUENCY – Hz
0
–60
–100
0
90
G
10
20
30
40
50
60
70
80
–10
–50
–70
–90
–30
–40
–80
–20
–120
–110
100
Figure 11. Detailed Full Frequency Response of AD7731
(SKIP = 0, CHP = 0, SF = 1536)
Figure 12 shows the frequency response for the same set of
conditions as for Figure 11 but in this case the response in shown
out to 600 Hz. T his plot is comparable to that of Figure 10. T he
most notable difference is absence of the peaks in the response
at 200 Hz and 400 Hz. As a result, interference at these fre-
quencies will be effectively eliminated before being aliased back
to dc.
T able X VIII summarizes the settling time and subsequent through-
put rate for the various different modes.
FREQUENCY – Hz
0
–60
–100
0
450
G
50
100 150 200 250 300 350 400
–10
–50
–70
–90
–30
–40
–80
–20
–120
–110
500 550
600
Figure 12. Expanded Full Frequency Response of AD7731
(SKIP = 0, CHP = 0, SF = 1536)
相關PDF資料 |
PDF描述 |
|---|---|
| AD7731EB | Precision, Zero-Drift Instrumentation Amplifier; Package: SO; No of Pins: 16; Temperature Range: 0°C to +70°C |
| AD7732 | 2-Channel, +-10 V Input Range, High Throughput, 24-Bit SIGMA- ADC |
| AD7732BRU | 2-Channel, +-10 V Input Range, High Throughput, 24-Bit SIGMA- ADC |
| AD773A | 10-Bit, 20 MSPS Monolithic A/D Converter |
| AD773AJD | 10-Bit, 20 MSPS Monolithic A/D Converter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD7731BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 5Msps 24-bit Serial 24-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 5MSPS 24BIT SERL 24TSSOP - Tape and Reel |
| AD7731BRU-REEL7 | 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP 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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7731BRUZ | 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP 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 |
| AD7731BRUZ-REEL | 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP 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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7731BRUZ-REEL7 | 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP 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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
發(fā)布緊急采購，3分鐘左右您將得到回復。