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| 型号： | THS10082CDAG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封装： | GREEN, PLASTIC, TSSOP-32 |
| 文件页数： | 26/37页 |
| 文件大小： | 375K |
| 代理商： | THS10082CDAG4 |
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THS10082
SLAS254B MAY 2002 REVISED NOVEMBER 2002
www.ti.com
32
10-Bit
ADC
VREFP
VREFM
AINP
Σ
VADC
AINM
+
Figure 41. Differential Input Stage
In comparison to the single-ended configuration it can be seen that the voltage (VADC) which is applied at the input of the
ADC is the difference between the input AINP and AINM. This means that VREFM defines the minimum voltage (AINM)
which can be applied to the ADC. VREFP defines the maximum voltage (AINP) which can be applied to the ADC. The voltage
VADC can be calculated as follows:
V
ADC +
ABS(AINP–AINM)
An advantage to single-ended operation is that the common-mode voltage
V
CM +
AINM
) AINP
2
can be rejected in the differential configuration, if the following condition for the analog input voltages is true:
AGND
v AINM, AINP v AV
DD
1V
v V
CM v
4V
In addition to the common-mode voltage rejection, the differential operation allows a dc-offset rejection which is common
to both analog inputs. See Figure 43.
SINGLE-ENDED MODE OF OPERATION
The THS10082 can be configured for single-ended operation using dc or ac coupling. In either case, the input of the
THS10082 must be driven from an operational amplifier that does not degrade the ADC performance. Because the
THS10082 operates from a 5-V single supply, it is necessary to level-shift ground-based bipolar signals to comply with its
input requirements. This can be achieved with dc and ac coupling. An application example is shown for dc-coupled level
shifting in the following section, dc coupling.
(2)
(3)
(4)
(5)
相关PDF资料 |
PDF描述 |
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| THS10082CDAR | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| THS10082CDA | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| THS10082IDA | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| THS10082IDAR | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| THS10082IDAG4 | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| THS10082EVM | 功能描述:EVALUATION MODULE FOR THS10082 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| THS10082IDA | 功能描述:模数转换器 - ADC 10 BIT High Speed AD 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 |
| THS10082IDAG4 | 功能描述:模数转换器 - ADC 10 Bit 8 MSPS Lo-Pwr 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 |
| THS1009 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
| THS1009CDA | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
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