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參數資料
| 型號： | TLV5580CPWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28 |
| 封裝： | GREEN, PLASTIC, TSSOP-28 |
| 文件頁數： | 11/36頁 |
| 文件大小： | 478K |
| 代理商： | TLV5580CPWR |
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TLV5580
8BIT, 80 MSPS LOW POWER A/D CONVERTER
SLAS205B DECEMBER 1998 REVISED OCTOBER 2003
www.ti.com
19
TLV5580 EVALUATION MODULE
POWER SUPPLIES
The board provides seven power supply connectors (see Table 2). For optimum performance, analog and digital
supplies should be kept separate. Using separate supplies for the digital logic portion of TLV5580 (DVDD) and
its output drivers (DRVDD) benefits dynamic performance, especially when DRVDD is put at the minimum
required voltage (3 V), while DVDD might be higher (up to 3.6 V). This lowers the switching noise on the die
caused by the output drivers.
Table 2. Power Supplies
SIGNAL
NAME
CONNECTOR
BOARD
LABEL
DESCRIPTION
DRV3
J1
3DRV
3.3 V digital supply for TLV5580 (digital output drivers)
DV3
J2
3VD
3.3 V digital supply for TLV5580 (digital logic) and peripherals
DV5
J3
5VD
5 V digital supply for D/A converter and peripherals
AV3
J4
3VA
3.3 V analog supply for TLV5580
AV5
J5
5VA
5 V analog supply for onboard reference circuit and D/A converter. Can be left unconnected if
internal references are used and no D/A conversion is required.
AV+12
J6
12VA
12 V analog supply for onboard reference circuit. Can be left unconnected if internal references
are used.
AV12
J7
12VA
12 V analog supply for onboard reference circuit. Can be left unconnected if internal references
are used.
VOLTAGE REFERENCES
SW1 and SW2 switch between internal and external top and bottom references respectively. The external
references are onboard generated from a stable bandgap-derived 3.3 V signal (using TI’s TPS7133 and
quad-op amp TLE2144). They can be adjusted via potentiometers R6 (V(REFBI)) and R7 (V(REFTI)). It is advised
to power down the internal voltage references by asserting PWN_REF when onboard references are used.
The references are measured at test points TP3 (V(REFB)) and TP4 (V(REFT)).
DAC OUTPUT
The onboard DAC is a 10-bit 80 MSPS converter. It is connected back-to-back to the TLV5580. While the user
could use its analog output for measurements, the DAC output is directly connected to connector J8 and does
not pass through an analog reconstruction filter. So mirror spectra from aliased signal components feed through
into the analog output.
For this reason and to separate ADC and DAC contributions, performance measurements should be made by
capturing the ADC output data available on connector J11 and not by evaluating the DAC output.
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| TLV5580IPWG4 | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28 |
| TLV5580CPWRG4 | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28 |
| TLV5580IPWRG4 | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV5580CPWRG4 | 功能描述:模數轉換器 - ADC 8Bit 80MSPS 1-Ch High Ch Band 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 |
| TLV5580DW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-BIT, 80 MSPS LOW-POWER A/D CONVERTER |
| TLV5580EVM | 制造商:Texas Instruments 功能描述:EVAL BD FOR TLV5580 8BIT 80 MSPS HIGH-SPEED A/D CNVRTR - Bulk |
| TLV5580IDW | 功能描述:模數轉換器 - ADC _ 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 |
| TLV5580IDWG4 | 功能描述:模數轉換器 - ADC 8Bit 80MSPS 1-Ch High Ch Band 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 |
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