- 您現在的位置：買賣IC網 > PDF目錄98251 > TLV2548IDWG4 (TEXAS INSTRUMENTS INC) 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 PDF資料下載
參數資料
| 型號： | TLV2548IDWG4 |
| 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, SOIC-20 |
| 文件頁數： | 28/46頁 |
| 文件大小： | 1078K |
| 代理商： | TLV2548IDWG4 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁當前第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁
TLV2544, TLV2548
2.7V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SLAS198E FEBRUARY 1999 REVISED JUNE 2003
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DATA CODE INFORMATION
Parts with a date code earlier than 31xxxxx have the following discrepancies:
1.
Earlier devices react to FS input irrespective of the state of the CS signal
2.
The earlier silicon was designed with SDO prereleased half clock ahead. This means in the microcontroller
mode (FS=1) the SDO is changed on the rising edge of SCLK with a delay; and for DSP serial port (when
FS is active) the SDO is changed on the falling edge of SCLK with a delay. This helps the setup time for
processor input data, but may reduce the hold time for processor input data. It is recommended that a
100 pF capacitance be added to the SDO line of the ADC when interfacing with a slower processor that
requires longer input data hold time.
3.
For earlier silicon, the delay time is specified as:
MIN
NOM
MAX
UNIT
VCC = 4.5 V
SDO = 0 pF
16
Delay time, delay from SCLK falling edge (FS is active) or
VCC = 4.5 V
SDO = 100 pF
20
ns
Delay time, delay from SCLK falling edge (FS is active) or
SCLK rising edge (FS=1) to next SDO valid, td(SCLK-DOV).
VCC = 2.7 V
SDO = 0 pF
24
ns
SCLK rising edge (FS=1) to next SDO valid, td(SCLK-DOV).
VCC = 2.7 V
SDO = 100 pF
30
This is because the SDO is changed at the rising edge in the up mode with a delay. This is the hold time
required by the external digital host processor, therefore, a minimum value is specified. The newer silicon
has been revised with SDO changed at the falling edge in the up mode with a delay. Since at least 0.5 SCLK
exists as the hold time for the external host processor, the specified maximum value helps with the
calculation of the setup time requirement of the external digital host processor.
For an explanation of the DSP mode, reverse the rising/falling edges in item (2) above.
相關PDF資料 |
PDF描述 |
|---|---|
| TLV2548CDWG4 | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| TLV2548IDWRG4 | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| TLV2548IPWRG4 | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| TLV2544CDR | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TLV2548CDW | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| TLV2548IDWRG4 | 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 |
| TLV2548IPW | 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 |
| TLV2548IPWG4 | 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 |
| TLV2548IPWR | 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 |
發布緊急采購，3分鐘左右您將得到回復。