參數(shù)資料
型號: ADS7808UB
英文描述: 12-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER
中文描述: 12位10ms的串行CMOS采樣模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù): 6/10頁
文件大?。?/td> 251K
代理商: ADS7808UB
ADS7808
6
HEX
HEX
DESCRIPTION
BINARY CODE
CODE
BINARY CODE
CODE
Full-Scale Range
±
10
±
5
±
3.33V
1.63mV
0V to 5V
0V to 10V
0V to 4V
Least Significant Bit (LSB)
4.88mV
2.44mV
1.22mV
2.44mV
0.98mV
+Full Scale (FS – 1LSB)
9.99512V 4.99756V 3.33171V
4.99878V 9.99756V
3.99902V
0111 1111 1111
7FF
1111 1111 1111
FFF
Midscale
0V
0V
0V
2.5V
5V
2V
0000 0000 0000
000
1000 0000 0000
800
One LSB Below Midscale
–4.88mV
–2.44mV
–1.63mV
2.49878V 4.99756V
1.99902V
1111 1111 1111
FFF
0111 1111 1111
7FF
–Full Scale
–10V
–5V
–3.333333V
0V
0V
0V
1000 0000 0000
800
0000 0000 0000
000
BINARY TWO’S
COMPLEMENT
(SB/BTC LOW)
STRAIGHT BINARY
(SB/BTC HIGH)
Initiate Conversion and
Output Data Using External
Clock
Power Down
Selecting Output Format
Incorrect Conversions
SPECIFIC FUNCTION
CS
R/C
BUSY
EXT/INT DATACLK PWRD
SB/BTC
OPERATION
Initiate Conversion and
Output Data Using
Internal Clock
1>0
0
1
0
Output
0
x
Initiates conversion “n”. Data from conversion “n–1”
clocked out on DATA synchronized to 12 clock
pulses output on DATACLK.
0
1>0
1
0
Output
0
x
Initiates conversion “n”. Data from conversion “n–1”
clocked out on DATA synchronized to 12 clock
pulses output on DATACLK.
1>0
0
1
1
Input
0
x
Initiates conversion “n”.
0
1>0
1
1
Input
0
x
Initiates conversion “n”.
1>0
1
1
1
Input
x
x
Outputs a pulse on SYNC followed by data from
conversion “n” clocked out synchronized to external
DATACLK.
1>0
1
0
1
Input
0
x
Outputs a pulse on SYNC followed by data from
conversion “n–1” clocked out synchronized to
external DATACLK.
(1)
Conversion “n” in process.
0
0>1
0
1
Input
0
x
Outputs a pulse on SYNC followed by data from
conversion “n–1” clocked out synchronized to
external DATACLK .
(1)
Conversion “n” in process.
0
0
0>1
x
x
0
x
CS or R/C must be HIGH or a new conversion will
be initiated without time for acquisition.
x
x
x
x
x
0
x
Analog circuitry powered. Conversion can proceed.
x
x
x
x
x
1
x
Analog circuitry disabled. Data from previous
conversion maintained in output registers.
x
x
x
x
x
x
0
Serial data is output in Binary Two’s Complement
format.
x
x
x
x
x
x
1
Serial data is output in Straight Binary format.
NOTE: (1) See Figure 3b for constraints on previous data valid during conversion.
Table III. Control Truth Table.
ANALOG INPUT
DIGITAL OUTPUT
Table IV. Output Codes and Ideal Input Voltages.
相關(guān)PDF資料
PDF描述
ADS7810 12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7810U CMOS Quad 2-Input NOR Gate 14-CDIP -55 to 125
ADS7810UB CMOS Quad 2-Input NOR Gate 14-CDIP -55 to 125
ADS7811 16-Bit 250kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7811U CMOS Quad 2-Input NOR Gate 14-PDIP -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7808UB/1K 功能描述:IC 12-BIT 100KHZ SMPL A/D 20SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率(每秒):3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散(最大):- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
ADS7808UB/1KE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling 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
ADS7808UBE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling 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
ADS7808UBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling 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
ADS7808UE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling 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