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參數(shù)資料
| 型號(hào)： | DAC8812C |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Dual, Serial Input 16-Bit Multiplying Digital-to-Analog Converter |
| 中文描述： | 雙路，串行輸入16位乘法數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大?。?/td> | 1671K |
| 代理商： | DAC8812C |
www.ti.com
APPLICATION INFORMATION
V
OUT
D
32,768
1
V
REF
(2)
10
V
V
REF
10k
W
10k
W
5
k
W
V
DD
I
X
OUT
A
X
GND
OPA277
OPA277
OneChannel
DAC8812
V
OUT
Digitalinterfaceconnectionsomittedforclarity.
-
10V<V
OUT
<+10V
V
REF
X
R
FB
X
Cross-Reference
The DAC8812 has an industry-standard pinout.
Table 4
provides the cross-reference information.
DAC8812
SBAS349A–AUGUST 2005–REVISED DECEMBER 2005
The DAC8812, a 2-quadrant multiplying DAC, can be used to generate a unipolar output. The polarity of the
full-scale output I
OUT
is the inverse of the input reference voltage at V
REF
.
Some applications require full 4-quadrant multiplying capabilities or bipolar output swing, as shown in
Figure 35
.
An additional external op amp (A2) is added as a summing amp. In this circuit, the first and second amps (A1
and A2) provide a gain of 2X that widens the output span to 20 V. A 4-quadrant multiplying circuit is implemented
by using a 10-V offset of the reference voltage to bias A2. According to the following circuit transfer equation
(
Equation 2
), input data (D) from code 0 to full scale produces output voltages of V
OUT
= –10 V to V
OUT
= 10 V.
Figure 35. Four-Quadrant Multiplying Application Circuit
Table 4. Cross-Reference
SPECIFIED
TEMPERATURE
RANGE
INL
(LSB)
DNL
(LSB)
PACKAGE
DESCRIPTION
16-Lead Thin Shrink
Small-Outline Package
16-Lead Thin Shrink
Small-Outline Package
PACKAGE
OPTION
CROSS-REFERENCE
PART NUMBER
PRODUCT
DAC8812ICPW
±
1
±
1
–40
°
C to +85
°
C
TSSOP-16
N/A
DAC8812IBPW
±
2
±
1
–40
°
C to +85
°
C
TSSOP-16
AD5545BRU
15
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|---|---|
| DAC8812IBPW | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Dual Serial Input Multiplying 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 |
| DAC8812IBPW | 制造商:Texas Instruments 功能描述:D/A Converter (D-A) IC |
| DAC8812IBPWG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Dual Serial Input Multiplying 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 |
| DAC8812IBPWR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Dual Serial Input Multiplying 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 |
| DAC8812IBPWRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Dual Serial Input Multiplying 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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