參數(shù)資料
型號(hào)： TLV5613DW
廠(chǎng)商： Texas Instruments, Inc.
英文描述： 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN
中文描述： 2.7 V至5.5 V 12位并行數(shù)字至模擬轉(zhuǎn)換器與電源向下
文件頁(yè)數(shù)： 13/21頁(yè)
文件大?。?/td> 291K
代理商： TLV5613DW
TLV5613
2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER
WITH POWER DOWN
SLAS174A – DECEMBER 1997 – REVISED JULY 1998
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
layout considerations
To achieve the best performance, it is recommended to have separate power planes for GND, AV
DD
, and DV
DD
.
Figure 15 shows how to lay out the power planes for the TLV5613. As a general rule, digital and analog signals
should be separated as wide as possible. To avoid crosstalk, analog and digital traces must not be routed in
parallel. The two positive power planes ( AV
DD
and DV
DD
) should be connected together at one point with a
ferrite bead.
A 100-nF ceramic low series inductance capacitor between DV
DD
and GND and a 1-
μ
F tantalum capacitor
between AV
DD
and GND as close as possible to the supply pins are recommended for optimal performance.
DVDD
AVDD
Figure 15. TLV5613 Board Layout
linearity, offset, and gain error using single end supplies
When an amplifier is operated from a single supply, the voltage offset can still be either positive or negative. With
a positive offset, the output voltage changes on the first code change. With a negative offset the output voltage
may not change with the first code depending on the magnitude of the offset voltage.
The output amplifier attempts to drive the output to a negative voltage. However, because the most negative
supply rail is ground, the output cannot drive below ground and clamps the output at 0 V.
The output voltage remains at zero until the input code value produces a sufficient positive output voltage to
overcome the negative offset voltage, resulting in the transfer function shown in Figure 16.
DAC Code
Output
Voltage
0 V
Negative
Offset
Figure 16. Effect of Negative Offset (Single Supply)
相關(guān)PDF資料
PDF描述
TLV5613PW 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN
TLV5614D 2.7-V TO 5.5-V 12-BIT 3-mS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN
TLV5614PW 2.7-V TO 5.5-V 12-BIT 3-mS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN
TLV5616C 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN
TLV5616I 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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