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參數(shù)資料
| 型號： | THS12082CDAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封裝： | GREEN, PLASTIC, TSSOP-32 |
| 文件頁數(shù)： | 11/42頁 |
| 文件大?。?/td> | 840K |
| 代理商： | THS12082CDAR |
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THS12082
12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS
SLAS271B – MAY 2000 – REVISED DECEMBER 2002
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FIFO trigger level
Bit 2 and bit 3 (TRIG1, TRIG0) of control register 1 are used to set the trigger level of the FIFO (see Table 13).
If the trigger level is reached, the DATA_AV (data available) signal becomes active according to the setting of
the signal DATA_AV to indicate to the processor that the ADC values can be read.
Table 13 shows four different programmable trigger levels for each configuration. The FIFO trigger level, which
can be selected, is dependent on the number of input channels. Either a differential or a single-ended input is
considered as one channel. The processor, therefore, always reads the data from the FIFO in the same order
and is able to distinguish between the channels.
Table 13. FIFO Trigger Level
BIT 3
TRIG1
BIT 2
TRIG0
TRIGGER LEVEL
FOR 1 CHANNEL
(ADC values)
TRIGGER LEVEL
FOR 2 CHANNELS
(ADC values)
0
01
02
0
1
04
1
0
08
8
1
14
12
timing and signal description of the THS12082
The reading from the THS12082 and writing to the THS12082 is performed by using the chip select inputs (CS0,
CS1), the write input WR and the read input RD. The write input is configurable to a combined read/write input
(R/W). This is desired in cases where the connected processor consists of a combined read/write output signal
(R/W). The two chip select inputs can be used to interface easily to a processor.
Reading from the THS12082 takes place by an internal RDint signal, which is generated from the logical
combination of the external signals CS0, CS1 and RD (see Figure 10). This signal is then used to strobe the
words out of the FIFO and to enable the output buffers. The last external signal (either CS0, CS1 or RD) to
become valid will make RDint active while the write input (WR) is inactive. The first of those external signals going
to its inactive state will then deactivate RDint again.
Writing to the THS12082 takes place by an internal WRint signal, which is generated from the logical combination
of the external signals CS0, CS1 and WR. This signal is then used to strobe the control words into the control
registers 0 and 1. The last external signal (either CS0, CS1 or WR) to become valid will make WRint active while
the read input (RD) is inactive. The first of those external signals going to its inactive state will then deactivate
WRint again.
Read Enable
Write Enable
Control/Data
Registers
CS0
CS1
RD
WR
Data Bits
Figure 10. Logical Combination of CS0, CS1, RD, and WR
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| THS12082CDARG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12 Bit 8 MSPS Dual Ch 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 |
| THS12082DA | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS |
| THS12082EVM | 功能描述:EVALUATION MODULE FOR THS12082 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| THS12082IDA | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12 Bit 8 MSPS Dual Ch 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 |
| THS12082IDAG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12 Bit 8 MSPS Dual Ch 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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