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參數資料
型號: TLV1562IDW
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
封裝: 1.27 MM PITCH, GREEN, SOIC-28
文件頁數: 40/41頁
文件大小: 600K
代理商: TLV1562IDW
TLV1562
2.7 V TO 5.5 V, HIGH-SPEED LOW-POWER RECONFIGURABLE ANALOG-TO-DIGITAL
CONVERTER WITH 4-INPUT, DUAL S/H, PARALLEL INTERFACE, AND POWER DOWN
SLAS162 – SEPTEMBER 1998
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
input signal range
The analog input signal range for a specific supply voltage AVDD ranges from (AVDD – 1.9 V) to 0.8 V.
3 V
0.8 V
2.7
4.9
5.5
AVDD (V)
VSWING
Linearity not Guaranteed
Limited by Noise
Figure 3. Analog Input Range vs AVDD
VREFCM + 0.5
× VSWING ≤ AVDD –1 V
VREFCM – 0.5
× VSWING ≥ 0.8 V
Where:
VREFCM = (VREFP + VREFM)/2 is the common mode reference voltage.
VSWING = dynamic range of the input signal,
VSWING = VINP – VINM,
And the common mode input voltage is:
VINCM = (VINP + VINM)/2,
MAX VSWING = MIN [(AVDD – 1.9 V), 3 V]
For single-ended input, the analog input range is between VREFP and VREFM. So the range of
single-ended VIN is:
3 V
if AVDD = 3 V
1 V
if AVDD = 3 V
0.8 V
if AVDD = 2.7 V
For differential input, the input common mode voltage VINCM can be between AVDD and AGND as long as
3 V
≥ (VINP–VINM) ≥ 0.8 V.
This means VINCM
≥ 0.4 V.
So the range of differential analog input voltage, (VINP–VINM) is:
3 V
if AVDD = 3 V
1 V
if AVDD = 3 V
0.8 V
if AVDD = 2.7 V
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TLV1562IDWR 功能描述:模數轉換器 - ADC 10-Bit 2 MSPS Quad Channel 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
TLV1562IDWRG4 功能描述:模數轉換器 - ADC 10-Bit 2 MSPS Quad Channel 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
TLV1562IPW 功能描述:模數轉換器 - ADC 10bit Programmable 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
TLV1562IPWG4 功能描述:模數轉換器 - ADC 10-Bit 2 MSPS Quad Channel 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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