參數(shù)資料
型號(hào)： ADS8504
英文描述： 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位250 kSPS的采樣CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 5/19頁(yè)
文件大?。?/td> 361K
代理商： ADS8504
www.ti.com
ADS8504
SLAS434–JUNE 2005
DEVICE INFORMATION (continued)
Terminal Functions
TERMINAL
DIGITAL
I/O
DESCRIPTION
NAME
DW NO.
2
5
26
AGND1
AGND2
BUSY
Analog ground. Used internally as ground reference point.
Analog ground.
At the start of a conversion, BUSY goes low and stays low until the conversion is
completed and the digital outputs have been updated.
Selects 8 most significant bits (low) or 8 least significant bits (high).
Reference buffer capacitor. 2.2-μF tantalum capacitor to ground.
Internally ORed with R/C. If R/C low, a falling edge on CS initiates a new conversion.
Digital ground.
Data bit 11. Most significant bit (MSB) of conversion results. Hi-Z state when CS is
high, or when R/C is low.
Data bit 10. Hi-Z state when CS is high, or when R/C is low.
Data bit 9. Hi-Z state when CS is high, or when R/C is low.
Data bit 8. Hi-Z state when CS is high, or when R/C is low.
Data bit 7. Hi-Z state when CS is high, or when R/C is low.
Data bit 6. Hi-Z state when CS is high, or when R/C is low.
Data bit 5. Hi-Z state when CS is high, or when R/C is low.
Data bit 4. Hi-Z state when CS is high, or when R/C is low.
Data bit 3. Hi-Z state when CS is high, or when R/C is low.
Data bit 2. Hi-Z state when CS is high, or when R/C is low.
Data bit 1. Hi-Z state when CS is high, or when R/C is low.
Data bit 0. Least significant bit (LSB) of conversion results. Hi-Z state when CS is high,
or when R/C is low.
Low when CS low, R/C high. Hi-Z state when CS is high, or when R/C is low.
Low when CS low, R/C high. Hi-Z state when CS is high, or when R/C is low.
Low when CS low, R/C high. Hi-Z state when CS is high, or when R/C is low.
Low when CS low, R/C high. Hi-Z state when CS is high, or when R/C is low.
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.
Reference input/output. 2.2-μF tantalum capacitor to ground.
Analog supply input. Nominally +5 V. Decouple to ground with 0.1-μF ceramic and
10-μF tantalum capacitors.
Digital supply input. Nominally +5 V. Connect directly to pin 27. Must be
≤
V
ANA
.
Analog input.
O
BYTE
CAP
CS
DGND
D11 (MSB)
23
4
25
14
6
I
I
O
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
7
8
9
O
O
O
O
O
O
O
O
O
O
O
10
11
12
13
15
16
17
18
DZ
DZ
DZ
DZ
R/C
19
20
21
22
24
O
O
O
O
I
REF
V
ANA
3
27
V
DIG
V
IN
28
1
5
相關(guān)PDF資料
PDF描述
ADS8504IB 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
ADS8504IBDW 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
ADS8504IBDWG4 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
ADS8504IBDWR 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
ADS8504IBDWRG4 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8504IB 制造商:BB 制造商全稱(chēng):BB 功能描述:12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER
ADS8504IBDW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 250kHz CMOS w/Parallel Interface 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8504IBDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 250kHz CMOS w/Parallel Interface 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8504IBDWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 250kHz CMOS w/Parallel Interface 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8504IBDWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 250kHz CMOS w/Parallel Interface 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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