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參數(shù)資料
| 型號： | TLC876I |
| 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)： | 18/23頁 |
| 文件大?。?/td> | 314K |
| 代理商： | TLC876I |
TLC876M TLC876I, TLC876C
10-BIT 20 MSPS PARALLEL OUTPUT CMOS
ANALOG-TO-DIGITAL CONVERTERS
SLAS140D – JULY 1997 – REVISED MAY 2000
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
ac considerations
(continued)
10
μ
F
0.1
μ
F
10
μ
F
0.1
μ
F
140
(
±
1%)
NC
NC
REFTS
REFTF
REFBF
REFBS
250
(
±
1%)
5 V
4 V
2 V
TLC876
NC – No connect
500
Figure 19. Low Cost Reference Circuit
The reference configuration in Figure 19 provides the lowest cost, but the disadvantages include reduced dc
power supply rejection and reduced accuracy due to the variability of the internal and external resistors.
The force-sense reference connections can eliminate the voltage drops associated with the internal
connections to the reference ladder. Figure 20 shows a circuit using a dual, rail-to-rail single-supply operational
amplifier. The operational amplifier should provide stable 3.6 V and 1.6 V reference voltages. Each half of the
amplifier is compensated to drive 1
μ
F and 0.1
μ
F decoupling capacitors at the REFTF and REFBF terminals
maintaining stability. The operational amplifiers are connected as voltage followers.
By connecting the operational amplifier feedback through the sense connections of the TLC876, the outputs
of the operational amplifiers automatically adjust to compensate for the voltage drops that occur within the
converter.
_
+
5 V
C3
0.1
μ
F
_
+
C4
0.1
μ
F
C1
0.1
μ
F
REFT
REFB
REFTS
REFTF
REFBS
REFBF
TLC876
C2
0.1
μ
F
Figure 20. Kelvin Connection Reference Using an Operational Amplifier
with Unlimited Capacitive Load Drive Capability
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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) |
| TLE2027(中文) | Low-Noise High-Speed Precision Operational Amplifiers(增強型低噪聲高速精密運放) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC876IDB | 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 |
| TLC876IDBLE | 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 |
| TLC876IDBR | 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 |
| TLC876IDW | 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 |
| TLC876IDWR | 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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