參數(shù)資料
型號(hào)： ADS7804P
英文描述： 12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
中文描述： 12位10ms的采樣CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 4/10頁(yè)
文件大?。?/td> 182K
代理商： ADS7804P
4
ADS7804
1
V
IN
Analog Input. See Figure 7.
2
AGND1
Analog Ground. Used internally as ground reference point.
Reference Input/Output. 2.2
μ
F tantalum capacitor to ground.
Reference Buffer Capacitor. 2.2
μ
F tantalum capacitor to ground.
Analog Ground.
3
REF
4
CAP
5
AGND2
6
D15 (MSB)
O
Data Bit 11. Most Significant Bit (MSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is LOW.
7
D14
O
Data Bit 10. Hi-Z state when CS is HIGH, or when R/C is LOW.
8
D13
O
Data Bit 9. Hi-Z state when CS is HIGH, or when R/C is LOW.
9
D12
O
Data Bit 8. Hi-Z state when CS is HIGH, or when R/C is LOW.
10
D11
O
Data Bit 7. Hi-Z state when CS is HIGH, or when R/C is LOW.
11
D10
O
Data Bit 6. Hi-Z state when CS is HIGH, or when R/C is LOW.
12
D9
O
Data Bit 5. Hi-Z state when CS is HIGH, or when R/C is LOW.
13
D8
O
Data Bit 4. Hi-Z state when CS is HIGH, or when R/C is LOW.
14
DGND
Digital Ground.
15
D7
O
Data Bit 3. Hi-Z state when CS is HIGH, or when R/C is LOW.
16
D6
O
Data Bit 2. Hi-Z state when CS is HIGH, or when R/C is LOW.
17
D5
O
Data Bit 1. Hi-Z state when CS is HIGH, or when R/C is LOW.
18
D4
O
Data Bit 0. Lease Significant Bit (LSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is LOW.
19
D3
O
LOW when CS LOW, R/C HIGH. Hi-Z state when CS is HIGH, or when R/C is LOW.
20
D2
O
LOW when CS LOW, R/C HIGH. Hi-Z state when CS is HIGH, or when R/C is LOW.
21
D1
O
LOW when CS LOW, R/C HIGH. Hi-Z state when CS is HIGH, or when R/C is LOW.
22
D0 (LSB)
O
LOW when CS LOW, R/C HIGH. Hi-Z state when CS is HIGH, or when R/C is LOW.
23
BYTE
I
Selects 8 most significant bits (LOW) or 8 least significant bits (HIGH).
24
R/C
I
With CS LOW and BUSY HIGH, a Falling Edge on R/C Initiates a New Conversion. With CS LOW, a rising edge on R/C
enables the parallel output.
25
CS
I
Internally OR’d with R/C. If R/C LOW, a falling edge on CS initiates a new conversion.
26
BUSY
O
At the start of a conversion, BUSY goes LOW and stays LOW until the conversion is completed and the digital outputs
have been updated.
Analog Supply Input. Nominally +5V. Decouple to ground with 0.1
μ
F ceramic and 10
μ
F tantalum capacitors.
Digital Supply Input. Nominally +5V. Connect directly to pin 27. Must be
≤
V
ANA
.
27
V
ANA
V
DIG
28
DIGITAL
I/O
PIN #
NAME
DESCRIPTION
TABLE I. Pin Assignments.
CHARACTERIZATION CURVES
Call factory for updated data sheet which includes character-
ization curves.
PIN CONFIGURATION
V
DIG
V
ANA
BUSY
CS
R/C
BYTE
DZ
DZ
DZ
DZ
D0 (LSB)
D1
D2
D3
V
IN
AGND1
REF
CAP
AGND2
D11 (MSB)
D10
D9
D8
D7
D6
D5
D4
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ADS7804
相關(guān)PDF資料
PDF描述
ADS7804PB 12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7804UB 12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7805 16-bit 10us sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7805P 16-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7805PB 16-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7804PB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Sampling CMOS 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
ADS7804PBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 10us Sampling CMOS ADC 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
ADS7804PG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Sampling CMOS 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
ADS7804U 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Sampling CMOS 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
ADS7804U/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Sampling CMOS 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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