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參數資料
| 型號： | THS10082CDA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封裝： | GREEN, PLASTIC, TSSOP-32 |
| 文件頁數： | 26/37頁 |
| 文件大小： | 375K |
| 代理商： | THS10082CDA |
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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)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS10082CDAG4 | 功能描述:模數轉換器 - ADC 10 Bit 8 MSPS Lo-Pwr 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 |
| THS10082EVM | 功能描述:EVALUATION MODULE FOR THS10082 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 |
| THS10082IDA | 功能描述:模數轉換器 - ADC 10 BIT High Speed AD 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 |
| THS10082IDAG4 | 功能描述:模數轉換器 - ADC 10 Bit 8 MSPS Lo-Pwr 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 |
| THS1009 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
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