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參數(shù)資料
| 型號： | TLC876MDW |
| 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： | TLC876MDW |
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC-8C-0750 | 制造商:KATO/COILTHREAD 功能描述: |
| TLC976C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 20 MSPS, AREA CCD SIGNAL PROCESSOR |
| TLC976CDGG | 功能描述:IC 10-BIT CCD SIG PROC 56-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模擬前端 (AFE) 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準包裝:2,500 系列:- 位數(shù):- 通道數(shù):2 功率（瓦特）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數(shù)字:3 V ~ 3.6 V 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN（5x5） 包裝:帶卷 (TR) |
| TLC976CDGGR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 20 MSPS, AREA CCD SIGNAL PROCESSOR |
| TLC-9C-1125 | 制造商:KATO/COILTHREAD 功能描述: |
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