參數(shù)資料
型號(hào): DAC7631E
廠商: TEXAS INSTRUMENTS INC
元件分類: DAC
英文描述: SERIAL INPUT LOADING, 8 us SETTLING TIME, 16-BIT DAC, PDSO20
封裝: GREEN, SSOP-20
文件頁數(shù): 3/22頁
文件大小: 600K
代理商: DAC7631E
11
DAC7631
TYPICAL PERFORMANCE CURVES: VSS = –5V (Cont.)
At TA = +25°C, VDD = VCC = +5V, VSS = –5V, VREFH = +2.5V, and VREFL = –2.5V, representative unit, unless otherwise specified.
Time (2
s/div)
OUTPUT VOLTAGE vs SETTLING TIME
(+2.5V to –2.5V)
Output
Voltage
Large-Signal Settling Time: 1V/div
Small-Signal Settling Time:
2LSB/div
+5V
LDAC
0
THEORY OF OPERATION
The DAC7631 is a 16-bit voltage-output Digital-to-Analog
Converter (DAC). The architecture is an R-2R ladder con-
figuration with the three MSB’s segmented, followed by an
operational amplifier that serves as a buffer, as shown in
Figure 1. The minimum voltage output (zero-scale) and
maximum voltage output (full-scale) are set by external
voltage references at VREFL and VREFH, respectively.
The digital input is a 16-bit serial word representing the
16-bit DAC input code, sent MSB first. The DAC7631 can
be powered from either a single +5V supply or a dual
±5V
supply. The device offers a reset function which immedi-
ately sets the output voltage and DAC register to mid-scale
code (8000H) or to zero-scale code (0000H). See Figures 2
and 3 for the basic operation of the DAC7631.
R
2R
V
REFH
V
OUT
V
OUT Sense
V
REFH Sense
V
REFL
V
REFL Sense
R
F
FIGURE 1. DAC7631 Architecture.
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相關(guān)代理商/技術(shù)參數(shù)
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DAC7631E/1KG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC Serial Input 16-Bit Voltage Output RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
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DAC7631EB 制造商:Texas Instruments 功能描述:IC 16BIT DAC SERIAL SMD