參數(shù)資料
型號(hào)： AD5415YRUZ
廠商： Analog Devices Inc
文件頁數(shù)： 8/29頁
文件大?。?/td> 0K
描述： IC DAC DUAL 12BIT MULT 24-TSSOP
產(chǎn)品培訓(xùn)模塊： Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝： 62
設(shè)置時(shí)間： 120ns
位數(shù)： 12
數(shù)據(jù)接口： 串行
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 單電源
功率耗散（最大）： 3.5µW
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 24-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 24-TSSOP
包裝： 管件
輸出數(shù)目和類型： 4 電流，單極；4 電流，雙極
采樣率（每秒）： 2.47M
產(chǎn)品目錄頁面： 782 (CN2011-ZH PDF)
Data Sheet
AD5415
Rev. E | Page 15 of 28
GENERAL DESCRIPTION
DAC SECTION
The AD5415 is a 12-bit, dual-channel, current output DAC
consisting of standard inverting R-2R ladder configuration.
Figure 33 shows a simplified diagram of a single channel of the
AD5415. The feedback resistor RFB has a value of 2R. The value
of R is typically 10 kΩ (with a minimum of 8 kΩ and a
maximum of 12 kΩ). If IOUT1 and IOUT2 are kept at the same
potential, a constant current flows into each ladder leg,
regardless of the digital input code. Therefore, the input
resistance presented at VREF is always constant.
2R
S1
2R
S2
2R
S3
2R
S12
2R
DAC DATA LATCHES
AND DRIVERS
R
RFBA
IOUT1A
IOUT2A
VREFA
04461-032
RR
R
Figure 33. Simplified Ladder
Access is provided to the VREF, RFB, IOUT1, and IOUT2 terminals of
the DAC, making the device extremely versatile and allowing it
to be configured in several operating modes, such as unipolar
output, bipolar output, or single-supply mode.
CIRCUIT OPERATION
Unipolar Mode
Using a single op amp, this device can easily be configured to
provide 2-quadrant multiplying operation or a unipolar output
voltage swing, as shown in Figure 34.
When an output amplifier is connected in unipolar mode, the
output voltage is given by
VOUT = VREF × D/2n
where:
D is the fractional representation, in the range of 0 to 4,095, of
the digital word loaded to the DAC.
n is the number of bits.
Note that the output voltage polarity is opposite the VREF
polarity for dc reference voltages. This DAC is designed to
operate with either negative or positive reference voltages. The
VDD power pin is only used by the internal digital logic to drive
the on and off states of the DAC switches.
This DAC is also designed to accommodate ac reference input
signals in the range of 10 V to +10 V.
With a fixed 10 V reference, the circuit in Figure 34 gives a
unipolar 0 V to 10 V output voltage swing. When VIN is an
ac signal, the circuit performs 2-quadrant multiplication.
Table 5 shows the relationship between digital code and
expected output voltage for unipolar operation.
Table 5. Unipolar Code
Digital Input
Analog Output (V)
1111 1111 1111
VREF (4,095/4,096)
1000 0000 0000
VREF (2,048/4,096) = VREF/2
0000 0000 0001
VREF (1/4,096)
0000 0000 0000
VREF (0/4,096) = 0
IOUT1A
IOUT2A
RFBA
RFB
2R
R1
2R
AD5415
12-BIT DAC A
R
GND
SDIN
VREFA
SCLK
SYNC
R2
2R
R3
2R
R2A
R2_3A
R3A
VDD
C1
A1
VOUT = 0V TO –VIN
AGND
CONTROLLER
AGND
R1A
NOTES
1. DAC B OMITTED FOR CLARITY.
2. C1 PHASE COMPENSATION (1pF TO 2pF) MAY BE REQUIRED
IF A1 IS A HIGH SPEED AMPLIFIER.
04461-033
Figure 34. Unipolar Operation
相關(guān)PDF資料
PDF描述
ICS840004AGLFT IC FREQ SYNTHESIZER 20-TSSOP
MS3128F22-55P CONN RCPT 55POS WALL MNT W/PINS
AD5725ARSZ-1500RL7 IC DAC 12BIT QUAD PAR 28-SSOP
VI-J43-MZ-F3 CONVERTER MOD DC/DC 24V 25W
97-3106A-28-16S CONN PLUG 20POS W/SOCKETS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5415YRUZ-REEL 功能描述:IC DAC 12BIT DUAL MULT 24-TSSOP 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:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:*
AD5415YRUZ-REEL7 功能描述:IC DAC 12BIT DUAL MULT 24-TSSOP 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:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:*
AD542 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance, BiFET Operational Amplifiers
AD5420 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Channel, 16-Bit, Serial Input, Current Source DAC
AD5420ACPZ 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Channel, 16-Bit, Serial Input, Current Source DAC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*