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参数资料
| 型号： | SPT7861SCT |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | ADC |
| 英文描述： | 10-BIT, 40 MSPS, 160 mW A/D CONVERTER |
| 中文描述： | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP32 |
| 封装： | 7 MM, TQFP-32 |
| 文件页数： | 9/11页 |
| 文件大小： | 87K |
| 代理商： | SPT7861SCT |
9
6/25/01
SPT7861
DIGITAL OUTPUTS
The digital outputs (D0
–
D10) are driven by a separate
supply (OV
DD
) ranging from +3 V to +5 V. This feature
makes it possible to drive the SPT7861
’
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
D10
1
0
0
0
0
OUTPUT CODE
D9
–
D0
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
+F.S. + 1/2 LSB
+F.S.
–
1/2 LSB
+1/2 F.S.
+1/2 LSB
0.0 V
(
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 SPT7861 in
higher resolution systems.
EVALUATION BOARD
The EB7861 evaluation board is available to aid designers
in demonstrating the full performance of the SPT7861.
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
SPT7861, is also available. Contact the factory for price
and availability.
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| SPT7871 | 10-BIT, 100 MSPS TTL A/D CONVERTER |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPT7861SCT_Q | 功能描述:模数转换器 - ADC 10-BIT A/D CONVERTER RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| SPT7861SCTX | 功能描述:视频模拟/数字化转换器集成电路 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 输入信号类型:Differential 转换器数量:1 ADC 输入端数量:4 转换速率:3 Gbps 分辨率:8 bit 结构: 输入电压:3.3 V 接口类型:SPI 信噪比: 电压参考: 电源电压-最大:3.45 V 电源电压-最小:3.15 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TCSP-48 封装:Reel |
| SPT7862 | 制造商:CADEKA 制造商全称:CADEKA 功能描述:10-BIT, 40 MSPS, DUAL-CHANNEL A/D CONVERTER |
| SPT7862SIT | 制造商:CADEKA 制造商全称:CADEKA 功能描述:10-BIT, 40 MSPS, DUAL-CHANNEL A/D CONVERTER |
| SPT7863 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:10-BIT, 40 MSPS, 160 mW A/D CONVERTER |
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