- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375233 > AD5380BST-3 (ANALOG DEVICES INC) 40-Channel, 3V/5V Single Supply, 14-Bit, Voltage-Output DAC PDF資料下載
參數(shù)資料
| 型號： | AD5380BST-3 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | 40-Channel, 3V/5V Single Supply, 14-Bit, Voltage-Output DAC |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 8 us SETTLING TIME, 14-BIT DAC, PQFP100 |
| 封裝： | 14 X 14 MM, MS-026BED, LQFP-100 |
| 文件頁數(shù)： | 31/34頁 |
| 文件大小： | 975K |
| 代理商： | AD5380BST-3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁當前第31頁第32頁第33頁第34頁
PRELIMINARY TECHNICAL DATA
REV. PrF 09/2003
AD5380
–31–
APPLICATIONS INFORMATION
AD5380 Monitor Function
The AD5380 contains a channel monitor function consisting of a multiplexer addressed via the interface allowing any
channel output to be routed to this pin for monitoring using an external ADC. In channel monitor mode Vout 39 be-
comes the MON_OUT pin, the pin to which all monitored signals are routed. The channel monitor function must be
enabled in the control register before any channels are routed to the MON_OUT pin. Table X contains the decoding
information required to route any channel to the MON_OUT pin. Selecting channel address 63 tristates the
MON_OUT pin. Figure 19 shows a typical monitoring circuit implemented using a 12-bit SAR ADC in a 6-lead sot
package. The controller output port selects the channel to be monitored and the input port reads the converted data from
the ADC.
AD5380
VOUT 39/MON_OUT
SCLK
SDATA
CS
AD7476
.
.
.
.
.
.
VOUT 0
VOUT 38
AVCC
VIN
AVCC
DAC_GND SIGNAL GND
AGND
DIN
SYNC
SCLK
CONTROLLER
INPUT PORT
OUTPUT PORT
GND
Figure 19. Typical Channel Monitoring Circuit
Toggle Mode Function
The toggle mode function allows an output signal to be generated using the
LDAC
control signal that switches between
two DAC data registers. This function is configured using the SFR control register as follows. A write with
REG1=REG0=0, A5-A0=001100 specifies a control register write. The toggle mode function is enabled in groups of 8-
channels using bits CR6 to CR2 in the control register. See AD5380 control register description. Figure 20 shows a
block diagram of the toggle mode implementation. Each of the 40 DAC channels on the AD5380 contain an A and a B
data register. Note, the “B” registers can only be loaded when Toggle mode is enabled. The sequence of events when
configuring the AD5380 for toggle mode of operation is as follows:
i) Enable Toggle Mode for the required channels via the Control Register
ii) Load Data to A registers
iii) Load Data to B registers.
iv) Apply
LDAC
.
The
LDAC
is used to switch between the “A” and “B” registers in determining the analog output. The first LDAC
configures the output to reflect the data in the “A” registers. This mode offers significant advantages if the user wants to
generate a square wave at the output of all 40 channels as might be required to drive a liquid crystal based variable opti-
cal attenuators. In this case the user writes to the control register and enables the toggle function by setting CR6 to
CR2=1 enabling the five groups of 8 for toggle mode operation. The user must then load data to all 40 “A” registers
and “B” registers. Toggling the
LDAC
will set the output values to reflect the data in the A and B registers and the
frequency of the
LDAC
will determine the frequency of the squarewave output.
Toggle mode is disabled via the control register, the first LDAC following the disabling of the toggle mode will update
the outputs with the data contained in the “A” registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD5380BST-5 | 32-Channel, 3 V/5 V, Single-Supply, 14-Bit, Voltage Output DAC |
| AD5380EB | 40-Channel, 3V/5V Single Supply, 14-Bit, Voltage-Output DAC |
| AD546 | 1 pA Monolithic Electrometer Operational Amplifier(單片靜電計運算放大器) |
| AD5539 | Ultrahigh Frequency Operational Amplifier(超高頻率運算放大器) |
| AD5547 | Dual Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5380BST-3-REEL | 制造商:Analog Devices 功能描述:DAC 40-CH Resistor-String 14-bit 100-Pin LQFP T/R |
| AD5380BST-5 | 制造商:Analog Devices 功能描述:DAC 40-CH Resistor-String 14-bit 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:40-CHN 5V SINGLE SUPPLY 14-BIT VOUT I.C. - Bulk |
| AD5380BST-5-REEL | 制造商:Analog Devices 功能描述:DAC 40-CH Resistor-String 14-bit 100-Pin LQFP T/R |
| AD5380BST-U2 | 制造商:Analog Devices 功能描述:DAC 40-CH RES-STRING 14BIT 100LQFP - Bulk |
| AD5380BSTZ-3 | 功能描述:IC DAC 14BIT 40CHAN 3V 100LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 設(shè)置時間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。