參數(shù)資料
型號: DAC5573IWR
廠商: Texas Instruments, Inc.
英文描述: QUAD, 8-BIT, LOW-POWER, VOLTAGE OUTPUT, INTERFACE DIGITAL-TO-ANALOG CONVERTER
中文描述: 四,8位,低功耗,電壓輸出,接口數(shù)字,模擬轉(zhuǎn)換器
文件頁數(shù): 26/30頁
文件大?。?/td> 499K
代理商: DAC5573IWR
www.ti.com
APPLICATION INFORMATION
BASIC CONNNECTIONS
For many applications, connecting the DAC5573 is extremely simple. A basic connection diagram for the
DAC5573 is shown in Figure 38. The 0.1 μF bypass capacitors provide the momentary bursts of extra current
needed from the supplies.
8
6
4
9
5
7
1
2
3
12
14
11
10
13
16
15
DAC5573
V
OUTA
V
OUTB
V
REFH
V
DD
V
REFL
GND
V
OUTC
V
OUTD
A3
A2
A1
A0
IOV
DD
SDA
SCL
L
DAC
SDA
SCL
I
2
C Pullup Resistors
1 k
to 10 k
(typical)
IOV
DD
Microcontroller or
Microprocessor With
I
2
C Port
NOTE: DAC5573 power and input/output connections are omitted for clarity, except I C Inputs.
USING GPIO PORTS FOR I
2
C
Most microcontrollers have programmable input/output pins that can be set in software to act as inputs or
outputs. If an I
2
C controller is not available, the DAC5573 can be connected to GPIO pins, and the I
2
C bus
protocol simulated, or bit-banged, in software. An example of this for a single DAC5573 is shown in Figure 39.
DAC5573
SLAS401–NOVEMBER 2003
The following sections give example circuits and tips for using the DAC5573 in various applications. For more
information, contact your local TI representative, or visit the Texas Instruments website at http://www.ti.com.
Figure 38. Typical DAC5573 Connections
The DAC5573 interfaces directly to standard mode, fast mode and high-speed mode I
2
C controllers. Any
microcontroller's I
2
C peripheral, including master-only and non-multiple-master I
2
C peripherals, work with the
DAC5573. The DAC5573 does not perform clock-stretching (i.e., it never pulls the clock line low), so it is not
necessary to provide for this unless other devices are on the same I
2
C bus.
Pullup resistors are necessary on both the SDA and SCL lines because I
2
C bus drivers are open-drain. The size
of the these resistors depend on the bus operating speed and capacitance on the bus lines. Higher-value
resistors consume less power, but increase the transition times on the bus, limiting the bus speed. Lower-value
resistors allow higher speed at the expense of higher power consumption. Long bus lines have higher
capacitance and require smaller pullup resistors to compensate. If the pullup resistors are too small the bus
drivers may not be able to pull the bus line low.
26
相關PDF資料
PDF描述
DAC5574EVM DAC5574 Evaluation Module(DAC5574評估模塊)
DAC6574EVM DAC6574 Evaluation Module(DAC6574評估模塊)
DAC7574EVM DAC7574 Evaluation Module(DAC7574評估模塊)
DAC5571EVM DAC5571 Evaluation Module(DAC5571評估模塊)
DAC6571EVM DAC6571 Evaluation Module(DAC6571評估模塊)
相關代理商/技術參數(shù)
參數(shù)描述
DAC5574 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUAD, 8-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL TO ANALOG CONVERTER
DAC5574EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 DAC5574 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
DAC5574IDGS 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-bit Quad Converter with I2C interface 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)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
DAC5574IDGS 制造商:Texas Instruments 功能描述:IC DAC 8BIT 188KSPS MSOP-10
DAC5574IDGSG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-bit Quad Converter with I2C interface 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)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube