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参数资料
| 型号： | TLC3544CDW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封装： | GREEN, PLASTIC, SOIC-20 |
| 文件页数： | 21/44页 |
| 文件大小： | 1000K |
| 代理商： | TLC3544CDW |
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TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C – OCTOBER 2000 – REVISED MAY 2003
28
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
conversion operation (continued)
CS
FS
SDI
INT
SDO
***
Command = Configure Write for Mode 11, FIFO
Threshold = 1/2 Full, Sweep Sequence: 0–0–2–2
**
COMMAND = Select Any Channel
*
COMMAND = Read FIFO
*
Configure
Conversion
From CH0
Conversion
From CH2
Conversion
From CH2
Conversion
From CH0
1st SWEEP
1st FIFO Read
REPEAT
2nd FIFO Read
CH0
CH2
CH0
Read FIFO After 1st SWEEP Completed
CSTART
*** **
**
*
***
*
Possible Signal
Don’t Care
Figure 20. Mode 11, CSTART Triggers Samplings/Conversions
conversion clock and conversion speed
The conversion clock source can be the internal OSC, or the external clock SCLK. When the external clock is
used, the conversion clock is equal to SCLK/4. It takes 18 conversion clocks plus 15 ns to finish the conversion.
If the external clock is selected, the conversion time (not including sampling time) is 18X(4/fSCLK)+15 ns. Table 4
shows the maximum conversion rate (including sampling time) when the analog input source resistor is 1 k
.
Table 4. Maximum Conversion Rate
DEVICE
SAMPLING MODE
CONVERSION CLK
MAX SCLK
(MHz)
CONVERSION
TIME (us)
RATE
(KSPS)
Short (16 SCLK)
External SCLK/4
10
8.815
113.4
TLC3544/48
Long (48 SCLK)
External SCLK/4
25
4.815
207.7
TLC3544/48
(Rs = 1000)
Short (16 SCLK)
Internal 6.5 MHz
10
4.385
228
()
Long (48 SCLK)
Internal 6.5 MHz
25
4.705
212.5
FIFO operation
76543210
ADC
×8
FIFO
SOD
Serial
FIFO Full
FIFO 3/4 Full
FIFO 1/2 Full
FIFO 1/4 Full
FIFO Threshold Pointer
Figure 21. FIFO Structure
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLC3544CDW | 制造商:Texas Instruments 功能描述:14BIT ADC 4CH 5V 200KSPS 20SOIC 制造商:Texas Instruments 功能描述:14BIT ADC, 4CH, 5V, 200KSPS, 20SOIC |
| TLC3544CDWG4 | 功能描述:模数转换器 - ADC 14B 5V 200KSPS 4-CH Unipolar 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 |
| TLC3544CDWR | 功能描述:模数转换器 - ADC 14-bit 5V 200KSPS 4-Channel Unipolar 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 |
| TLC3544CDWRG4 | 功能描述:模数转换器 - ADC 14-bit 5V 200KSPS 4-Channel Unipolar 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 |
| TLC3544CPW | 功能描述:模数转换器 - ADC 14-bit 5V 200KSPS 4-Channel Unipolar 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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