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參數資料
| 型號： | TLC3545ID |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 8/25頁 |
| 文件大小： | 648K |
| 代理商： | TLC3545ID |
TLC3541, TLC3545
SLAS345 DECEMBER 2001
16
www.ti.com
PRINCIPLES OF OPERATION
pseudo-differential inputs
The TLC3545 operates in pseudo-differential mode. The inverted input is available on pin 5. The inverted input
can tolerate a maximum input ripple of
±0.2 V. It is normally used for zero-scale offset cancellation or ground
noise rejection.
serial interface
Output data format is binary (unipolar straight binary).
binary
D Zero-Scale Code = 0000h, VAIN = GND
D Full-Scale Code = 3FFFh, VAIN = VREF – 1 LSB
reference voltage
An external reference must be applied via pin 2, VREF. The voltage level applied to this pin establishes the upper
limit of the analog inputs to produce a full-scale reading. The value of VREF, and the analog input should not
exceed the positive supply or be less than GND, consistent with the specified absolute maximum ratings. The
digital output is at full scale when the input signal is equal to or higher than VREF and at zero when the input
signal is equal to or less than GND.
auto-power down and power up
Auto-power down is built into the devices in order to reduce power consumption. The wake-up time is fast
enough to provide power down between each conversion cycle. The power-down state is initiated at the end
of conversion and wakes up on a falling CS edge (or rising FS edge, whichever occurs first, for TLC3541 only).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLC3545IDG4 | 功能描述:模數轉換器 - ADC 14-Bit 200KSPS 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 |
| TLC3545IDGK | 功能描述:模數轉換器 - ADC 14-Bit 200KSPS 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 |
| TLC3545IDGKG4 | 功能描述:模數轉換器 - ADC 14-Bit 200KSPS 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 |
| TLC3545IDGKR | 功能描述:模數轉換器 - ADC 14-Bit 200KSPS 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 |
| TLC3545IDGKRG4 | 功能描述:模數轉換器 - ADC 14-Bit 200KSPS 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 |
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