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參數資料
型號: TLV2548CPWR
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁數: 43/46頁
文件大小: 1078K
代理商: TLV2548CPWR
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PDF資料
PDF描述
TLV2548CPWRG4 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
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相關代理商/技術參數
參數描述
TLV2548CPWRG4 功能描述:模數轉換器 - ADC 12-Bit 200 kSPS Serial Out 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
TLV2548EVM 功能描述:EVALUATION MODULE FOR TLV2548 RoHS:是 類別:編程器,開發系統 >> 評估板 - 模數轉換器 (ADC) 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數量:1 位數:12 采樣率(每秒):94.4k 數據接口:USB 輸入范圍:±VREF/2 在以下條件下的電源(標準):- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,軟件
TLV2548IDW 功能描述:模數轉換器 - ADC 12bit 200KSPS SAR 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
TLV2548IDWG4 功能描述:模數轉換器 - ADC 12bit 200KSPS SAR 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
TLV2548IDWR 功能描述:模數轉換器 - ADC 12-Bit 200 kSPS Serial Out 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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