參數(shù)資料
型號(hào)： DAC8814IBDB
廠商： Texas Instruments, Inc.
英文描述： Quad, Serial Input 16-Bit Multiplying Digital-to-Analog Converter
中文描述： 四，串行輸入16位乘法數(shù)字到模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 22/31頁(yè)
文件大?。?/td> 264K
代理商： DAC8814IBDB
www.ti.com
P
Graphic
Forthcoming
Graphic
Forthcoming
PARAMETER MEASUREMENT INFORMATION
SDI
CLK
CS
LDAC
SDO
t
CSS
t
ds
t
dh
t
ch
t
cl
t
csh
Input REG. LD
t
lds
t
LDAC
t
pd
t
LDH
A1
A0
D15 D14 D13
D13 D12
D11 D10
D1
D0
THEORY OF OPERATION
CIRCUIT OPERATION
The DAC8814 contains four, 16-bit, current-output, digital-to-analog converters (DACs) respectively. Each DAC
has its own independent multiplying reference input. The DAC8814 uses a 3-wire SPI compatible serial data
interface, with a configurable asynchronous RS pin for half-scale (MSB = 1) or zero-scale (MSB = 0) preset. In
addition, an LDAC strobe enables four channel simultaneous updates for hardware synchronized output voltage
changes.
D/A Converter
DAC8814
SBAS338–JANUARY 2005
TYPICAL CHARACTERISTICS: V
DD
= +2.7 V (continued)
At T
A
= +25
°
C, +V
DD
= +2.7 V, unless otherwise noted.
LINEARITY ERROR
vs DIGITAL INPUT CODE
DIFFERENTIAL LINEARITY ERROR
vs DIGITAL INPUT CODE
Figure 51.
Figure 52.
Figure 53. DAC8814 Timing Diagram
The DAC8814 contains four current-steering R-2R ladder DACs. Figure 54 shows a typical equivalent DAC.
Each DAC contains a matching feedback resistor for use with an external I-to-V converter amplifier. The R
FB
X pin
is connected to the output of the external amplifier. The I
OUT
X terminal is connected to the inverting input of the
external amplifier. The A
GND
X pin should be Kelvin-connected to the load point in the circuit requiring the full
16-bit accuracy.
22
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DAC8814IBDBR 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Ser Inp Multiplying Cnvtr 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
DAC8814IBDBRG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Serial Input Mult DAC 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
DAC8814IBDBT 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Ser Inp Multiplying Cnvtr 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
DAC8814IBDBTG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Serial Input Mult DAC 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
DAC8814ICDB 制造商:TI 制造商全稱:Texas Instruments 功能描述:Quad, Serial Input 16-Bit Multiplying Digital-to-Analog Converter
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