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參數(shù)資料
| 型號(hào)： | TLV1570CDWG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | GREEN, SOIC-20 |
| 文件頁數(shù)： | 30/32頁 |
| 文件大小： | 634K |
| 代理商： | TLV1570CDWG4 |
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TLV1570
2.7 V TO 5.5 V 8-CHANNEL 10-BIT 1.25-MSPS
SERIAL ANALOG-TO-DIGITAL CONVERTER
SLAS169B – DECEMBER 1997– REVISED OCTOBER 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
initialization-software sequence (continued)
Example 3. Auto-Scan Mode
This example shows a change in sequence in the middle of the current sequence. The following shows that after
the initial autoscan reset, a reset is not necessary again when switching channel sequences.
CYCLE
WRITE TO
SDIN
CHANNEL
SAMPLED
OUTPUT FROM
SDOUT
COMMENT
1st
0480h
N/A
No analog input channel sampled
2nd
0480h
N/A
Autoscan reset enabled, no analog input channel sampled
3rd
0400h
0
From Channel 0
Start of sequence 0
4th
0700h
1
From Channel 1
Enable channel sequence 3 (no auto-scan reset required)
5th
0700h
7
From Channel 7
Start of sequence 3
6th
0700h
6
From Channel 6
7th
0700h
5
From Channel 5
8th
0700h
4
From Channel 4
9th
0700h
3
From Channel 3
10th
0700h
2
From Channel 2
11th
0700h
1
From Channel 1
12th
0700h
0
From Channel 0
Example 4. Auto-Scan Mode
This example shows a switch in sequence in the course of a sequence. The following shows that a particular
sequence does not have to be continued if remaining channels do not need to be sampled (i.e., only channel
1 through channel 5 sampled, not channels 6, 7, 8)
CYCLE
WRITE TO
SDIN
CHANNEL
SAMPLED
OUTPUT FROM
SDOUT
COMMENT
1st
0480h
N/A
No analog input channel sampled
2nd
0480h
N/A
Autoscan reset enabled, no analog input channel sampled
3rd
0400h
0
From Channel 0
4th
0400h
1
From Channel 1
5th
0400h
2
From Channel 2
6th
0400h
3
From Channel 3
7th
0400h
4
From Channel 4
8th
0480h
5
From Channel 5
Autoscan reset enabled
9th
0400h
0
From Channel 0
Sequence is reset to channel 0
10th
0400h
1
From Channel 1
11th
0400h
2
From Channel 2
The TLV1570 is a 800-ns 10-bit 8-analog input channel analog-to-digital converter with a throughput of up to
1.25 MSPS at 5 V and up to 625 KSPS at 3 V respectively. To run at its fastest conversion rate, it must be clocked
at 20 MHz at 5-V or 10 MHz at 3-V. The TLV1570 can be easily interfaced to microcontrollers, ASICs, DSPs,
or shift registers. The TLV1570 serial interface is designed to be fully compatible with serial peripheral interface
(SPI) and TMS320 DSP serial ports. No additional hardware is required to interface between the TLV1570 and
a microcontroller (
Cs) with a SPI serial port or a TMS320 DSP. However, the speed is limited by the SCLK rate
of the
C or the DSP.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV1570CDWR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV1570CDWRG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV1570CPW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.25MSPS Ser RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV1570CPW | 制造商:Texas Instruments 功能描述:IC 10-BIT ADC ((NW)) |
| TLV1570CPWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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