- 您現(xiàn)在的位置：買賣IC網 > PDF目錄375263 > ADS1602 16-Bit, 2.5MSPS Analog-to-Digital Converter PDF資料下載
參數(shù)資料
| 型號： | ADS1602 |
| 英文描述： | 16-Bit, 2.5MSPS Analog-to-Digital Converter |
| 中文描述： | 16位2.5MSPS模擬到數(shù)字轉換器 |
| 文件頁數(shù)： | 20/26頁 |
| 文件大小： | 397K |
| 代理商： | ADS1602 |
"#$%&
SBAS341B DECEMBER 2004 REVISED APRIL 2005
www.ti.com
20
FREQUENCY RESPONSE
The linear phase FIR digital filter sets the overall frequency
response. Figure 48 shows the frequency response from
dc to 20MHz for f
CLK
= 40MHz. The frequency response
of the ADS1602 filter scales directly with CLK frequency.
For example, if the CLK frequency is decreased by half (to
20MHz), the values on the X-axis in Figure 48 would need
to be scaled by half, with the span becoming dc to 10MHz.
Figure 49 shows the passband ripple from dc to 1200kHz
(f
CLK
= 40MHz). Figure 50 shows a closer view of the
passband transition by plotting the response from 900kHz
to 1300kHz (f
CLK
= 40MHz).
20
0
20
40
60
80
100
120
140
0
2
4
6
10
8
12
14
16
18
Frequency (MHz)
M
20
f
CLK
= 40MHz
Figure 48. Frequency Response
0.001
0.0008
0.0006
0.0004
0.0002
0
0.0002
0.0004
0.0006
0.0008
0.001
0
200
400
600
Frequency (kHz)
800
1000
M
1200
f
CLK
= 40MHz
Figure 49. Passband Ripple
0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
800
900
1000
1100
1200
Frequency (kHz)
M
1300
f
CLK
= 40MHz
Figure 50. Passband Transition
ANTIALIAS REQUIREMENTS
Higher frequency, out-of-band signals must be eliminated
to prevent aliasing with ADCs. Fortunately, the ADS1602
on-chip digital filter greatly simples this filtering
requirement. Figure 51 shows the ADS1602 response out
to 120MHz (f
CLK
= 40MHz). Since the stop band extends
out to 38.6MHz, the anti-alias filter in front of the ADS1602
only needs to be designed to remove higher frequency
signals than this, which can usually be accomplished with
a simple RC circuit on the input driver.
20
0
20
40
60
80
100
120
140
0
20
40
60
80
100
Frequency (MHz)
M
120
f
CLK
= 40MHz
Figure 51. Frequency Response Out to 120MHz
相關PDF資料 |
PDF描述 |
|---|---|
| ADS1602IPFBR | 16-Bit, 2.5MSPS Analog-to-Digital Converter |
| ADS1602IPFBRG4 | 16-Bit, 2.5MSPS Analog-to-Digital Converter |
| ADS1602IPFBT | 16-Bit, 2.5MSPS Analog-to-Digital Converter |
| ADS1602IPFBTG4 | 16-Bit, 2.5MSPS Analog-to-Digital Converter |
| ADS5220 | 12-Bit, 40MSPS Sampling, +3.3V ANALOG-TO-DIGITAL CONVERTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1602EVM | 功能描述:數(shù)據轉換 IC 開發(fā)工具 ADS1602EVM Eval Mod RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| ADS1602IPFBR | 功能描述:模數(shù)轉換器 - ADC 16-Bit 2.5MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1602IPFBRG4 | 功能描述:模數(shù)轉換器 - ADC 16-Bit 2.5MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1602IPFBT | 功能描述:模數(shù)轉換器 - ADC 16-Bit 2.5MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1602IPFBTG4 | 功能描述:模數(shù)轉換器 - ADC 16-Bit 2.5MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。