- 您現在的位置：買賣IC網 > PDF目錄373927 > AD7998BRU-1 (ANALOG DEVICES INC) 8-Channel, 10- and 12-Bit ADCs with I2CCompatible PDF資料下載
參數資料
| 型號： | AD7998BRU-1 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | MO-153-AC, TSSOP-20 |
| 文件頁數： | 17/32頁 |
| 文件大小： | 1056K |
| 代理商： | AD7998BRU-1 |
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頁當前第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
AD7997/AD7998
For ac applications, removing high frequency components from
the analog input signal is recommended, by using an RC band-
pass filter on the relevant analog input pin. In applications where
harmonic distortion and signal-to-noise ratio are critical, the
analog input should be driven from a low impedance source.
Large source impedances significantly affect the ac performance
of the ADC. This may necessitate the use of an input buffer
amplifier. The choice of the op amp is a function of the particular
application.
Rev. 0 | Page 17 of 32
When no amplifier is used to drive the analog input, the source
impedance should be limited to low values. The maximum source
impedance depends on the amount of total harmonic distortion
(THD) that can be tolerated. THD increases as the source imped-
ance increases, and performance degrades. Figure 23 shows the
THD vs. the analog input signal frequency when using supply
voltages of 3 V ± 10% and 5 V ± 10%. Figure 24 shows the THD
vs. the analog input signal frequency for different source
impedances.
–100
–90
–80
–70
–50
–40
T
10
1000
INPUT FREQUENCY(kHz)
0
100
–60
V
DD
= 5.5V
V
DD
= 5V
V
DD
= 4.5V
V
DD
= 3.3V
V
DD
= 3V
V
DD
= 2.7V
Figure 23. THD vs. Analog Input Frequency for Various
Supply Voltages, F
S
= 136 kSPS, Mode 1
–100
–90
–80
–70
–50
–40
T
10
1000
INPUT FREQUENCY(kHz)
0
100
–60
R
IN
= 50
R
IN
= 10
R
IN
= 100
R
IN
= 1000
V
DD
= 5V
Figure 24. THD vs. Analog Input Frequency for Various
Source Impedances for V
DD
= 5 V, 136 kSPS, Mode 1
相關PDF資料 |
PDF描述 |
|---|---|
| AD7998BRU-1REEL | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| AD7998BRUZ-03 | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| AD7998BRUZ-0REEL3 | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| AD7998BRUZ-13 | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| AD7998BRUZ-1REEL3 | 8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7998BRU-1REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 188ksps 12-bit Serial 20-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:8CHANNEL,12BIT ADC - I2C INTERFACE IC - Tape and Reel |
| AD7998BRU-U3 | 制造商:Analog Devices 功能描述: |
| AD7998BRUZ-0 | 功能描述:IC ADC 12BIT 8CHAN I2C 20TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯 轉換器數目:2 功率耗散（最大）:155mW 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7998BRUZ-03 | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel, 10- and 12-Bit ADCs with I2CCompatible |
| AD7998BRUZ-0REEL | 功能描述:IC ADC 12BIT 8CHAN I2C 20TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 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) 輸入數目和類型:2 個單端，單極 |
發布緊急采購，3分鐘左右您將得到回復。