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參數(shù)資料
型號(hào)： TLV2548IPW
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, TSSOP-20
文件頁(yè)數(shù)： 43/46頁(yè)
文件大小： 1078K
代理商： TLV2548IPW
TLV2544, TLV2548
2.7V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SLAS198E FEBRUARY 1999 REVISED JUNE 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
control and timing
power up and initialization requirements
D Determine processor type by writing A000h to the TLV2544/48 (CS must be toggled)
D Configure the device (CS must make a high-to-low transition, then can be held low if in DSP mode; i.e.,
active FS.)
The first conversion after power up or resuming from power down is not valid.
start of the cycle:
D When FS is not used (FS = 1 at the falling edge of CS), the falling edge of CS is the start of the cycle.
D When FS is used (FS is an active signal from a DSP), the falling edge of FS is the start of the cycle.
first 4-MSBs: the command register (CMR)
The TLV2544/TLV2548 have a 4-bit command set (see Table 1) plus a 12-bit configuration data field. Most of
the commands require only the first 4 MSBs, i.e., without the 12-bit data field.
The valid commands are listed in Table 1.
Table 1. TLV2544/TLV2548 Command Set
SDI D(1512) BINARY
TLV2548 COMMAND
TLV2544 COMMAND
0000b
0h
Select analog input channel 0
0001b
1h
Select analog input channel 1
N/A
0010b
2h
Select analog input channel 2
Select analog input channel 1
0011b
3h
Select analog input channel 3
N/A
0100b
4h
Select analog input channel 4
Select analog input channel 2
0101b
5h
Select analog input channel 5
N/A
0110b
6h
Select analog input channel 6
Select analog input channel 3
0111b
7h
Select analog input channel 7
N/A
1000b
8h
SW power down (analog + reference)
1001b
9h
Read CFR register data shown as SDO D(110)
1010b
Ah plus data
Write CFR followed by 12-bit data, e.g., 0A100h means external reference,
short sampling, SCLK/4, single shot, INT
1011b
Bh
Select test, voltage = (REFP+REFM)/2
1100b
Ch
Select test, voltage = REFM
1101b
Dh
Select test, voltage = REFP
1110b
Eh
FIFO read, FIFO contents shown as SDO D(154), D(30) = 0000
1111b
Fh plus data
Reserved
1111b
Fh plus data
Reserved
NOTE: The status of the CFR can be read with a read CFR command when the device is programmed
for one-shot conversion mode (CFR D[6,5] = 00).
相關(guān)PDF資料
PDF描述
TLV2548IPWG4 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2548CDWRG4 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2544IPWR 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
TLV2548IPWR 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2544ID 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV2548IPWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLV2548IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLV2548IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLV2548MFKB 制造商:Rochester Electronics LLC 功能描述:- Bulk
TLV2548MPWREP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC EP 2B 200 KSPS ADC Ser. Out 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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