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参数资料
| 型号： | TLC2574IPWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封装： | GREEN, PLASTIC, TSSOP-20 |
| 文件页数： | 24/48页 |
| 文件大小： | 1092K |
| 代理商： | TLC2574IPWR |
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TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
30
WWW.TI.COM
conversion operation (continued)
1st Sweep
1st FIFO Read
Configure
2nd FIFO Read
***
CH0
CH1
CH2
CH3
CH0
*
*
*
*
*
Hi-Z
***
Command = Configure Write for Mode 10, FIFO
Threshold = 1/2 Full, Sweep Sequence: 0123
**
COMMAND = Select Any Channel
*
COMMAND = Read FIFO
**
**
Conversion
From CH0
Conversion
From CH3
Conversion
From CH0
Conversion
From CH3
2nd Sweep
Using Existing
Configuration
Read FIFO After FIFO Threshold Is Hit
CS
FS
SDI
INT
SDO
Don’t Care
Figure 16. Mode 10, FS Initiates Operations
1st Sweep
1st FIFO Read
Configure
2nd FIFO Read
Hi-Z
***
Command = Configure Write for Mode 10, FIFO
Threshold = 1/2 Full, Sweep Sequence: 0022
**
COMMAND = Select Any Channel
*
COMMAND = Read FIFO
Conversion
From CH0
Conversion
From CH2
Conversion
From CH0
Conversion
From CH2
2nd Sweep
Using Existing
Configuration
Read FIFO After FIFO Threshold Is Hit, FS Initiates Select Period
CS Tied
to Low
FS
SDI
INT
***
CH0
CH2
CH0
*
*
*
*
*
**
SDO
**
CSTART
Don’t Care
Figure 17. Mode 10, CSTART Initiates Operations
START 2nd Round SWEEP CONVERSION,
the DATA of the 1st Round Are Lost
CS
FS=High
SDI
INT
SDO
READ the DATA of 2nd
Sweep From FIFO
CH1
CH3
CH2
CH0
START 2nd Sweep conversion immediately (NO FIFO READ) after the 1st SWEEP completed.
***
***
Command = Configure Write for Mode 11, FIFO
Threshold = 1/2 Full, Sweep Sequence: 0123
**
COMMAND = Select Any Channel
*
COMMAND = Read FIFO
**
*
**
Configure
Conversion
From CH0
Conversion
From CH3
Conversion
From CH3
Conversion
From CH0
Conversion
From CH0
Don’t Care
Figure 18. Mode 11, CS Initiates Operations
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| TLC2578IDWG4 | 功能描述:模数转换器 - ADC Serial Out Low Power 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 |
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