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參數資料
型號: TLC2574IDWG4
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝: GREEN, PLASTIC, SOP-20
文件頁數: 10/49頁
文件大小: 1137K
代理商: TLC2574IDWG4
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
18
WWW.TI.COM
analog input mode (continued)
When pseudodifferential mode is selected, only two analog input channel pairs are available for the TLC3574
and TLC2574 and four channel pairs for the TLC3578 and TLC2578, because half the inputs are used as the
negative input.
Analog
MUX
SAR
ADC
X8
A0
A1
A2
A3
A4
A5
A6
A7
X4
A0
A1
A2
A3
X
X8
A0(+) Pair A
A1()
A2(+) Pair B
A3()
A4(+) Pair C
A5()
A6(+) Pair D
A7()
X4
A0(+) Pair A
A1()
A2(+) Pair B
A3()
Analog
MUX
SAR
ADC
Single Ended
Pseudodifferential
TLC3578 and TLC2578
TLC3574 and TLC2574
Figure 7. Pin Assignment of Single-Ended Input vs Pseudodifferential Input
reference voltage
The external reference is applied to the reference-input pins (REFP and REFM). REFM should connect to
analog ground. REFP is 4 V. Install decoupling capacitors (10
F in parallel with 0.1 F) between REFP and
REFM, and compensation capacitors (0.1
F) between COMP and AGND.
ideal conversion characteristics
00000000000000
00000000000001
00000000000010
01111111111111
10000000000000
10000000000001
11111111111111
11111111111110
11111111111101
16381
16383
16382
8192
8193
8191
0
1
2
01111111111111
01111111111110
01111111111101
00000000000001
00000000000000
11111111111111
10000000000010
10000000000001
10000000000000
Binary
BOB
2s Complement
BTC
VFS = 10 V
9.99939 V
9.99878 V
9.99756 V
0.61 mV
9.99756 V
0.61 mV
VBZS = 0.0 V
VFS+ = 10 V
1LSB = 1.22 mV
Bipolar Analog Input Voltage
Step
Digital
Output
Code
相關PDF資料
PDF描述
TLC2578IDW 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3574IPW 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC3578IPW 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3574IDWR 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC3574IDWG4 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
相關代理商/技術參數
參數描述
TLC2574IDWR 功能描述:模數轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2574IDWRG4 功能描述:模數轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2574IN 功能描述:模數轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2574INE4 功能描述:模數轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2574IPW 功能描述:模數轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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