參數(shù)資料
型號： ADS8422IB
英文描述： 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
中文描述： 16位4 MSPS的，偽雙極，全差分輸入，微采樣模擬到數(shù)字轉(zhuǎn)換并行接口，參考
文件頁數(shù)： 8/25頁
文件大小： 816K
代理商： ADS8422IB
www.ti.com
TYPICAL CHARACTERISTICS
68
14024
13025
93
234937
0
50000
100000
150000
200000
250000
FFFD
FFFE
FFFF
0000
0001
Code - Hex
C
+VA = 5 V,
+VAREG = 3 V,
+VBD = 3 V,
Int REFIN = 4.096 V,
262144 Points,
Sigma = 0.325,
78
13793
235679
12575
19
0
50000
100000
150000
200000
250000
FFFD
FFFE
FFFF
0000
0001
Code - Hex
C
+VA = 5 V,
+VAREG = 3 V,
+VBD = 3 V,
Ext REFIN = 4.096 V,
262144 Points,
Sigma = 0.319,
4.094
4.095
4.096
4.097
4.098
-40
-25
-10
5
20
35
50
65
80
T - Free-Air Temperature - C
o
R
D1
D3
D2
+VA = 5 V,
+VAREG = 3 V,
+VBD = 3 V
ADS8422
SLAS512B–JUNE 2006–REVISED DECEMBER 2006
TERMINAL FUNCTIONS (continued)
NAME
NO
I/O
DESCRIPTION
DB9
22
O
D9
D1
D9
DB8
23
O
D8
D0 (LSB)
D8
DB7
26
O
D7
All ones
D7
DB6
27
O
D6
All ones
D6
DB5
28
O
D5
All ones
D5
DB4
29
O
D4
All ones
D4
DB3
30
O
D3
All ones
D3
DB2
31
O
D2
All ones
D2
DB1
32
O
D1
All ones
D1
DB0
33
O
D0 (LSB)
All ones
D0 (LSB)
–IN
7
I
Inverting input channel
+IN
6
I
Noninverting input channel
NC
11
–
No connection
Low true signal. A logic low longer than 1.5
μ
s applied to this pin powers down only the analog outputs that include
REFOUT and COMMOUT. (NOTE: The combination PD1 = 1, PD2 = 0 is reserved. Do not use this combination.)
PD2
37
I
REFIN
1
I
Reference input. Add 0.1-
μ
F decoupling capacitor between REFIN and REFM.
Reference output. Add 1-
μ
F capacitor between the REFOUT pin and REFM pin when internal reference is used.
Reference ground
REFOUT
2
O
REFM
47, 48
I
Low true signal. A low pulse applied to this pin resets the ADC; the ongoing conversion is aborted. A low pulse shorter
than 0.5
μ
s only resets, and one longer than 1.5
μ
s resets and also powers down the ADC. Note that analog outputs
REFOUT and COMMOUT can be powered down by PD2, if necessary.
RESET/PD1
38
I
RD
41
I
Synchronization pulse for the parallel output.
+VA
4, 46
–
Analog power supplies, 4.75 V to 5.25 VDC
+VAREG
10
–
Regulator supply, 2.85 V to 5.25 VDC
+VBD
24, 34
–
Digital power supply for bus
INTERNAL REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
(Three Devices Shown)
HISTOGRAM OF 262144
CONVERSIONS OF DC INPUT AT
CENTER CODE (Internal Reference)
HISTOGRAM OF 262144
CONVERSIONS OF DC INPUT AT
CENTER CODE (External Reference)
Figure 1.
Figure 2.
Figure 3.
8
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相關(guān)PDF資料
PDF描述
ADS8422IBPFBR 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
ADS8422IBPFBT 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
ADS8422IPFBR 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
ADS8422IPFBT 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
ADS8481IBPFBR 18-BIT, 1-MSPS, PSEUDO-DIFFERENTIAL UNIPOLAR INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8422IBPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IBPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IBPFBT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IBPFBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 4MSPS 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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