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参数资料
| 型号： | DAC7631E |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 8 us SETTLING TIME, 16-BIT DAC, PDSO20 |
| 封装： | GREEN, SSOP-20 |
| 文件页数： | 7/22页 |
| 文件大小： | 600K |
| 代理商： | DAC7631E |
15
DAC7631
FIGURE 10. Single-supply Buffered VREFH.
FIGURE 11. Linearity and Differential Error Curves for
Figure 10.
FIGURE 13. Linearity and Differential Error Curves for
Figure 12.
FIGURE 12. Low cost Single-supply Configuration.
Data is shifted into the device through the SDI and CLK pins
and arrives in a shift register. Once all 16 bits have been
transferred, the LOAD pin, which is level-sensitive, should
be brought low to latch the data into a buffer register called
the DAC input register. To latch the new data into the DAC
itself, the LDAC pin, which is edge-sensitive, must be
brought high. When this is done, the DAC will assume the
new value and the output voltage will change (provided that
the new value is different from the old one). Note that
settling time is measured from the time that the LDAC pin
is brought high, since the device’s output does not begin to
change until then.
The DAC7631’s double-buffering scheme allows the device
to be updated through the serial interface without disturbing
the voltage on the output pin. It also allows the user to use
separate logic for driving the serial input and triggering
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
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
Reset DAC Registers
Chip Select
Load
DGND
V
CC
SDI
CLK
CS
V
CC
AGND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DAC7631
V
REFH Sense
V
REFH
V
REFL Sense
V
REFL
SDO
V
SS
V
OUT Sense
V
OUT
NC
RSTSEL
RST
LOAD
Serial Data In
Clock
Load DAC Registers
LDAC
Serial Data Out
+
0.1
F1F
+5V
+2.5V
+V
V
OUT
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
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
+2.5V
+V
OPA2350
2200pF
100
1000pF
1
2
3
4
V
REFH
V
REFH Sense
V
REFL
V
REFL Sense
DAC7631
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC7631E/1K | 功能描述:数模转换器- DAC Serial Input 16-Bit Voltage Output 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 |
| DAC7631E/1KG4 | 功能描述:数模转换器- DAC Serial Input 16-Bit Voltage Output 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 |
| DAC7631E1K | 制造商:BB 制造商全称:BB 功能描述:Serial Input, 16-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER |
| DAC7631EB | 功能描述:数模转换器- DAC Serial Input 16-Bit Voltage Output 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 |
| DAC7631EB | 制造商:Texas Instruments 功能描述:IC 16BIT DAC SERIAL SMD |
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