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参数资料
| 型号： | DAC7643VFBTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 8 us SETTLING TIME, 16-BIT DAC, PQFP32 |
| 封装： | GREEN, PLASTIC, LQFP-32 |
| 文件页数： | 8/25页 |
| 文件大小： | 981K |
| 代理商： | DAC7643VFBTG4 |
DAC7642, DAC7643
16
SBAS233
www.ti.com
V
OUTA
V
OUTA Sense
V
REFL Sense
V
REFL
V
REFH
V
REFH Sense
V
OUTB Sense
V
OUTB
32
31
30
29
28
27
26
25
DAC7642
DAC7643
V
OUT
V
OUT
+2.5V
+V
FIGURE 11. Linearity and Differential Linearity Error Curves
for Figure 10.
FIGURE 13. Linearity and Differential Linearity Error Curves
for Figure 12.
FIGURE 12. Low-Cost Single-Supply Configuration.
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
LE
(LSB)
DLE
(LSB)
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC A, +25
°C)
0000
H
2000
H
4000
H
6000
H
8000
H
Digital Input Code
A000
H C000H
E000
H FFFFH
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
LE
(LSB)
DLE
(LSB)
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC A, +25
°C)
0000
H
2000
H
4000
H
6000
H
8000
H
Digital Input Code
A000
H C000H
E000
H FFFFH
FIGURE 10. Single-Supply Buffered VREFH.
V
OUTA
V
OUTA Sense
V
REFL Sense
V
REFL
V
REFH
V
REFH Sense
V
OUTB Sense
V
OUTB
32
31
30
29
28
27
26
25
DAC7642
DAC7643
V
OUT
V
OUT
+V
OPA2350
+2.5V
+V
1000pF
100
2200pF
DIGITAL INTERFACE
See Table I for the basic control logic of the DAC7642 and
DAC7643. Note that each internal register is edge triggered
and not level triggered. When the LOADDACS signal is
transitioned from LOW to HIGH, the digital word existing in
the input register is latched into the DAC register. The first
set of registers (the input registers) are triggered via the
DACSEL, R/W, and CS inputs. Only one of these registers
can be transparent at any given time.
The double-buffered architecture is designed mainly so each
DAC input register can be written to at any time without
affecting the DAC outputs. All DAC voltages are updated
simultaneously by the rising edge of LOADDACS. It also
allows multiple devices to be updated simultaneously by
sharing the LOADDACS control from the host with each
device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC7643VFR | 功能描述:数模转换器- DAC 16-Bit Dual Voltage Output 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 |
| DAC7643VFRG4 | 功能描述:数模转换器- DAC 16-Bit Dual Voltage Output 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 |
| DAC7643VFT | 功能描述:数模转换器- DAC 16-Bit Dual Voltage Output 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 |
| DAC7643VFTG4 | 功能描述:数模转换器- DAC 16-Bit Dual Voltage Output 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 |
| DAC7644 | 制造商:BB 制造商全称:BB 功能描述:16-Bit, Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER |
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