參數(shù)資料
型號： TLC3574IDWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, SOP-20
文件頁數(shù)： 15/49頁
文件大?。?/td> 1137K
代理商： TLC3574IDWG4
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
22
WWW.TI.COM
detailed description (continued)
Table 2. Configuration Register (CFR) Bit Definition
SDI BIT
DEFINITION
D11
Always 1. Otherwise the performance is degraded.
D10
Conversion output code format select:
0: BOB (bipolar offset binary);
1: BTC (binary 2s complement)
D9
Sample period select for normal sampling. Don’t care in extended sampling.
D9
0: Long sampling (4x) 44 SCLKs;
1: Short sampling 12 SCLKs
D8
Conversion clock source select:
0: Conversion clock = Internal OSC;
1: Conversion clock = SCLK/4
D7
Input mode select:
0: Single-ended;
1: Pseudodifferential. Pin configuration shown below.
Pin Configuration of TLC3578 and TLC2578
Pin Configuration of TLC3574 and TLC2574
Pin No.
Single-ended
Pseudodifferential polarity
Pin No.
Single-ended
Pseudodifferential polarity
9
10
A0
A1
Plus
Minus
Pair A
9
10
A0
A1
PLUS
MINUS
Pair A
11
12
A2
A3
Plus
Minus
Pair B
11
12
A2
A3
PLUS
MINUS
Pair B
13
14
A4
A5
Plus
Minus
Pair C
15
16
A6
A7
Plus
Minus
Pair D
D[6:5]
Conversion mode select
00: One shot mode
01: Repeat mode
10: Sweep mode
11: Repeat sweep mode.
D[4:3]
Sweep auto sequence select (Note: These bits only take effect in conversion mode 10 and 11.)
D[4:3]
TLC3578 and TLC2578
TLC3574 and TLC2574
Single-ended (by ch)
Pseudodifferential (by pair)
Single-ended (by ch)
Pseudodifferential (by pair)
00: 01234567
01: 02460246
10: 00224466
11: 02020202
00:
N/A
01: ABCDABCD
10: AABBCCDD
11: ABABABAB
00: 01230123
01: 02020202
10: 00112233
11: 00002222
00:
N/A
01: ABABABAB
10:
N/A
11: AAAABBBB
D2
EOC/INT pin function select
0: Pin used as INT
1: Pin used as EOC ( for mode 00 only)
D[1:0]
FIFO trigger level (sweep sequence length). Don’t care in one shot mode.
00: Full (INT generated after FIFO Level 7 filled)
01: 3/4 (INT generated after FIFO Level 5 filled)
10: 1/2 (INT generated after FIFO Level 3 filled)
11: 1/4 (INT generated after FIFO Level 1 filled)
sampling period
The sampling period follows the command period. The selected signal is sampled during this time. The device
has three different sampling modes: normal short mode, normal long mode, and extended mode.
Normal Short Sampling Mode: Sampling time is controlled by the SCLK and lasts 12 SCLK periods. At the
end of sampling, the converter automatically starts the conversion period. After the configuration, the normal
sampling starts automatically after the falling edge of fourth SCLK that follows the falling edge of CS if CS
triggers the operation, or follows the rising edge of FS if FS initiates the operation, except the FIFO READ and
WRITE CFR commands.
相關PDF資料
PDF描述
TLC2578IPWG4 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IPWG4 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IPWRG4 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IPWR 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3574IPWG4 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
相關代理商/技術參數(shù)
參數(shù)描述
TLC3574IDWR 功能描述:模數(shù)轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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
TLC3574IDWRG4 功能描述:模數(shù)轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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
TLC3574IN 功能描述:模數(shù)轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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
TLC3574INE4 功能描述:模數(shù)轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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
TLC3574IPW 功能描述:模數(shù)轉換器 - ADC Serial Out Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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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