參數(shù)資料
型號: ADS7812UE4
廠商: Texas Instruments
文件頁數(shù): 9/24頁
文件大小: 0K
描述: IC 12BIT 35MW SER OUT ADC 16SOIC
產(chǎn)品培訓(xùn)模塊: Data Converter Basics
標(biāo)準(zhǔn)包裝: 40
位數(shù): 12
采樣率(每秒): 40k
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 35mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 管件
輸入數(shù)目和類型: 3 個單端,單極;3 個單端,雙極
ADS7812
17
SBAS042A
www.ti.com
the DSP56002 must be programmed to enable the serial
interface when a LOW to HIGH transition on SCI occurs.
The DSP56002 can also provide the CONV signal, as shown
in Figure 17. The receive and transmit sections of the
interface are decoupled (asynchronous mode) and the trans-
mit section is set to generate a word length frame sync every
other transmit frame (frame rate divider set to 2). The
prescale modulus should be set to produce a transmit frame
at twice the desired conversion rate.
APPLICATIONS CIRCUIT
Figure 18 shows a multiplexed data acquisition circuit using
the ADS7812. The MPC508A provides the multiplexing
function while the OPA134 is configured as a Sallen-Key,
two-pole, unity gain lowpass filter.
CONV
BUSY
DATACLK
DATA
CS
EXT/INT
ADS7812
DSP56002
SC2
SC0
SRD
SYN = 0 (Asychronous)
GCK = 1 (Gated clock)
SCD2 = 1 (SC2 is an output)
SHFD = 0 (Shift MSB first)
WL1 = 0
WL0 = 1 (Word length = 12 bits)
FIGURE 17. DSP56002 Interface to the ADS7812. Processor Initiates Conversions.
In 1
In 2
In 3
In 4
In 5
In 6
In 7
In 8
A
0
A
1
A
2
MPC508A
R1
IN
R2
IN
R3
IN
BUF
BUSY
CONV
DATA
DATACLK
ADS7812
OPA134
C
2
330pF
C
1
2.2nF
R
1
1.4k
R
2
15.4k
+15V
±10V
Full Scale
–15V
P
FIGURE 18. Multiplexed Data Acquisition Circuit.
相關(guān)PDF資料
PDF描述
LLM219R71E153MA01L CAP CER 0.015UF 25V 20% X7R 0805
MS27473T8F98SLC CONN HSG PLUG 3POS STRGHT SCKT
MS27473E8A35P CONN PLUG 6POS STRAIGHT W/PINS
MS27473T8B98PLC CONN HSG PLUG 3POS STRGHT PINS
LLM219R71E103MA01L CAP CER 10000PF 25V 20% X7R 0805
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7812UG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Pwr Serial 12B Sampling 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
ADS7813 制造商:BB 制造商全稱:BB 功能描述:Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7813P 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Power Serial 16-Bit 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
ADS7813P 制造商:Texas Instruments 功能描述:16BIT ADC SERIAL O/P 7813 PDIP16
ADS7813PB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Power Serial 16-Bit 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