参数资料
型号: TLC7225CDWG4
厂商: TEXAS INSTRUMENTS INC
元件分类: DAC
英文描述: PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PDSO24
封装: 0.300 INCH, GREEN, SOIC-24
文件页数: 4/22页
文件大小: 331K
代理商: TLC7225CDWG4
TLC7225C, TLC7225I
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
unipolar output operation
The unipolar output operation is the basic mode of operation for each channel of the TLC7225, with the output
voltages having the same positive polarity as Vref. The TLC7225 can be operated with a single supply
(VSS = AGND) or with positive or negative supplies. The voltage at Vref must never be negative with respect
to DGND to prevent parasitic transistor turnon. Connections for the unipolar output operation are shown in
Figure 8. The transfer values are shown in Table 3.
_
+
DAC A
_
+
DAC B
_
+
DAC C
_
+
DAC D
5
REFA
2
1
24
23
OUTA
OUTB
OUTC
OUTD
REFB
REFC
REFD
VSS
AGND
DGND
4
21
20
Figure 8. Unipolar Output Circuit
LSB
MSB
DAC LATCH CONTENTS
ANALOG OUTPUT
) V
ref
255
256
1111
) V
ref
129
256
1000
0001
1000
0000
) V
ref
128
256
+)
V
ref
2
0111
1111
) V
ref
127
256
0000
0001
) V
ref
1
256
0000
0 V
NOTE 3 : 1 LSB
+ V
ref
2– 8
+ V
ref
1
256
Table 3. Unipolar Code
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相关代理商/技术参数
参数描述
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TLC7225CDWRG4 功能描述:数模转换器- DAC 8-Bit 5 us Quad DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
TLC7225I 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
TLC7225IDW 功能描述:数模转换器- DAC Quad DAC 8bit RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
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