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參數(shù)資料
| 型號： | SPT7855SCU |
| 廠商： | SIGNAL PROCESSING TECHNOLOGIES |
| 元件分類： | ADC |
| 英文描述： | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 11/11頁 |
| 文件大小： | 92K |
| 代理商： | SPT7855SCU |
SPT
9
4/9/01
SPT7855
DIGITAL OUTPUTS
The digital outputs (D0–D10) are driven by a separate
supply (OVDD) ranging from +3 V to +5 V. This feature
makes it possible to drive the SPT7855’s TTL/CMOS-
compatible outputs with the user’s logic system supply.
The format of the output data (D0–D9) is straight binary.
(See table III.) The outputs are latched on the rising edge
of CLK. These outputs can be switched into a tri-state
mode by bringing EN high.
Table III – Output Data Information
ANALOG INPUT
OVERRANGE
OUTPUT CODE
D10
D9–D0
+F.S. + 1/2 LSB
1
1 1 1 1 1 1 1 1 1 1
+F.S. –1/2 LSB
0
1 1 1 1 1 1 1 1 1
+1/2 F.S.
0
+1/2 LSB
0
0 0 0 0 0 0 0 0 0
0.0 V
0
0 0 0 0 0 0 0 0 0 0
( indicates the flickering bit between logic 0 and 1.)
OVERRANGE OUTPUT
The OVERRANGE OUTPUT (D10) is an indication that
the analog input signal has exceeded the positive full-
scale input voltage by 1 LSB. When this condition occurs,
D10 will switch to logic 1. All other data outputs (D0 to D9)
will remain at logic 1 as long as D10 remains at logic 1.
This feature makes it possible to include the SPT7855 in
higher resolution systems.
EVALUATION BOARD
The EB7855 evaluation board is available to aid designers
in demonstrating the full performance of the SPT7855.
This board includes a reference circuit, clock driver circuit,
output data latches, and an on-board reconstruction of the
digital data. An application note describing the operation
of this board, as well as information on the testing of the
SPT7855, is also available. Contact the factory for price
and availability.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SPT7855SIS | 功能描述:視頻模擬/數(shù)字化轉換器集成電路 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| SPT7855SIS_Q | 功能描述:模數(shù)轉換器 - ADC 10BIT 40MSPS SaR aDC 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 |
| SPT7855SIT | 功能描述:視頻模擬/數(shù)字化轉換器集成電路 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| SPT7855SIT_Q | 功能描述:模數(shù)轉換器 - ADC 10BIT 40MSPS SaR aDC 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 |
| SPT7860 | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:10-BIT, 40 MSPS, 175 mW A/D CONVERTER |
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