參數(shù)資料
型號(hào): ADS1256IDB
英文描述: Very Low Noise, 24-Bit Analog-to-Digital Converter
中文描述: 極低噪聲,24位模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù): 10/39頁
文件大?。?/td> 427K
代理商: ADS1256IDB
SBAS288D JUNE 2003 REVISED AUGUST 2004
www.ti.com
10
TYPICAL CHARACTERISTICS (continued)
TA = +25
°
C, AVDD = 5V, DVDD = 1.8V, fCLKIN = 7.68MHz, PGA = 1, and VREF = 2.5V, unless otherwise noted.
EFFECTIVE NUMBER OF BITS
vs INPUT VOLTAGE
Input Voltage, V
IN
(V)
2.5
0
0.5
1.0
1.5
2.0
3.0
3.5
4.0
4.5
5.0
23
22
21
20
19
18
E
Data Rate = 1kSPS
Data Rate = 30kSPS
PGA = 1
23
22
21
20
19
18
EFFECTIVE NUMBER OF BITS
vs TEMPERATURE
Temperature ( C)
E
30
50
10
10
30
90
110
70
50
Data Rate = 1kSPS
Data Rate = 30kSPS
PGA = 1
0.0006
0.0004
0.0002
0
0.0002
0.0004
0.0006
INTEGRAL NONLINEARITY vs INPUT SIGNAL
Input Voltage, V
IN
(V)
I
4
3
5
2
1
3
4
5
2
1
0
40 C
PGA = 1
+25 C
+85 C
+125 C
0.0009
0.0008
0.0007
0.0006
0.0005
0.0004
0.0003
0.0002
0.0001
0
PGA Setting
2
1
4
8
64
32
16
INTEGRAL NONLINEARITY vs PGA
Buffer On
Buffer Off
50
45
40
35
30
25
20
15
10
5
0
ANALOG SUPPLY CURRENT vs TEMPERATURE
Temperature ( C)
A
30
50
10
10
30
90
110
70
50
PGA = 1, Buffer Off
PGA = 1, Buffer On
PGA = 64, Buffer Off
PGA = 64, Buffer On
40
35
30
25
20
15
10
5
0
ANALOG SUPPLY CURRENT vs PGA
PGA Setting
A
2
1
4
8
64
32
16
Buffer Off
Buffer On
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PDF描述
ADS1256IDBR Very Low Noise, 24-Bit Analog-to-Digital Converter
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ADS1256IDBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24Bit 30kSPS Very Lo-Noise Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1256IDBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24Bit 30kSPS Very Lo-Noise Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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