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參數(shù)資料
| 型號： | TLC876C |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| 中文描述： | 10位20 MSPS的并行輸出CMOS模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/23頁 |
| 文件大小： | 314K |
| 代理商： | TLC876C |
TLC876M TLC876I, TLC876C
10-BIT 20 MSPS PARALLEL OUTPUT CMOS
ANALOG-TO-DIGITAL CONVERTERS
SLAS140D – JULY 1997 – REVISED MAY 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
dc considerations (continued)
2.5
2
0.5
0
0
0.5
1
1.5
REFBF, REFBS
2
2.5
3
R
3.5
4.5
5
3.5
4
1.5
4
3
1
2 V Span
1 V Span
Figure 18. TLC876 Reference Ranges
ac considerations
The simplified diagram of Figure 17 shows that the reference terminals connect to a capacitor for one half of
the clock period. The size of the capacitor is a function of the analog input voltage, therefore producing dynamic
impedance changes at the reference inputs.
The external reference source must be able to maintain a low impedance over all frequencies of interest to
provide the charge required by the capacitance. By supplying the requisite charge, the reference voltages
remain relatively constant maintaining specified performance. For some reference configurations, voltage
transients are present on the reference lines, especially during the falling edge of CLK. The reference must
recover from the transients and settle to the desired level of accuracy prior to the rising edges of CLK.
Several useful reference configurations can be used depending on the application, desired level of accuracy,
and cost tradeoffs. The simplest configuration, shown in Figure 19, utilizes a resistor divider to generate the
reference voltages from the converters analog power supply. The 0.1
μ
F bypass capacitors reduce high
frequency transients. The 10
μ
F capacitors reduce the impedances at the REFTF and REFBF terminals at lower
frequencies; however, as input frequencies approach dc, the capacitors become ineffective, and small voltage
deviations appear across the biasing resistors. This reference method maintains 10-bit accuracy for input
frequencies above approximately 200 Hz and 8-bit accuracy applications for input frequencies above
approximately 50 Hz.
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| TLC876I | 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| TLC876MDW | 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| TLE2021(中文) | Precision, High-Speed, Low-Power Operational Amplifiers(單路，高速，精密型，低功耗，單電源運放) |
| TLE2022(中文) | Dual,Precision, High-Speed, Low-Power Operational Amplifiers(雙路精密型，低功耗，單電源運放) |
| TLE2024(中文) | Quad,Precision, High-Speed, Low-Power Operational Amplifiers(四路精密型，低功耗，單電源運放) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC876CDB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| TLC876CDBLE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| TLC876CDBR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
| TLC876CDW | 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 10bit 20Msps A/D RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TLC876CDWR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS |
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