参数资料
型号: THS1206IDARG4
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封装: GREEN, PLASTIC, TSSOP-32
文件页数: 14/43页
文件大小: 722K
代理商: THS1206IDARG4
THS1206
SLAS217H – MAY 1999 – REVISED JULY 2003#
www.ti.com
21
FIFO DESCRIPTION
In order to facilitate an efficient connection to today’s processors, the THS1206 is supplied with a FIFO. This integrated
FIFO enables a problem-free processing of data with today’s processors. The FIFO is provided as a flexible circular buffer.
The circular buffer integrated in the THS1206 can store up to 16 conversion values. Therefore, the amount of interrupts
to be served by a processor can be reduced significantly.
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
Read Pointer
Trigger Pointer
Write Pointer
Data in FIFO
Free
Figure 29. Circular Buffer
The converted data of the THS1206 is automatically written into the FIFO. To control the writing and reading process, a
write pointer, a read pointer and a trigger pointer are used. The read pointer always shows the location which is read next.
The write pointer indicates the location which contains the last written sample. With a selection of multiple analog input
channels, the converted values are written in a predefined sequence to the circular buffer (autoscan mode). In this way,
the channel information for the reading processor is continually maintained.
The FIFO can be programmed through the control register of the ADC. The user has the ability to select a specific trigger
level according to Table 13 in order to choose the configuration which best fits the application. The FIFO provides the signal
DATA_AV, which signals the processor to read the amount of data equal to the trigger level selected in Table 13. The signal
DATA_AV becomes active when the trigger condition is satisfied. The trigger condition is satisfied when as many values
as selected for the trigger level are written into the FIFO.
The signal DATA_AV could be connected to an interrupt input of a processor. In every interrupt service routine call, the
processor must read the amount of data equal to the trigger level from the ADC. The first data represents the first channel
according to the autoscan mode, which is shown in Table 10. The channel information is therefore always maintained.
相关PDF资料
PDF描述
THS1206IDAG4 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1206CDAR 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1206CDA 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1206QDAR 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
THS1206MDAREP 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
相关代理商/技术参数
参数描述
THS1206MDA 制造商:Texas Instruments 功能描述:ADC SGL PIPELINED 6MSPS 12-BIT PARALLEL 32TSSOP - Tape and Reel
THS1206MDAREP 功能描述:模数转换器 - ADC EP 12B,6Msps ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1206M-EVM 功能描述:数据转换 IC 开发工具 THS1206M Eval Module RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V
THS1206QDA 功能描述:模数转换器 - ADC 12-Bit 6 MSPS Quad Channel RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
THS1206QDAR 功能描述:模数转换器 - ADC 12 Bit 6 MSPS Quad Channel RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32