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參數(shù)資料
| 型號(hào)： | AD5062ARJZ-1500RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 10/20頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT 2.7-5.5V SOT23-8 |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | nanoDAC™ |
| 設(shè)置時(shí)間： | 4µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-8 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸出數(shù)目和類型： | 1 電壓，單極；1 電壓，雙極 |
| 采樣率（每秒）： | 1.3M |
| 其它名稱： | AD5062ARJZ-1500RL7DKR |
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AD5062
Rev. A | Page 18 of 20
USING AD5062 WITH A GALVANICALLY ISOLATED
INTERFACE CHIP
In process control applications in industrial environments, it is
often necessary to use a galvanically isolated interface to protect
and isolate the controlling circuitry from any hazardous
common-mode voltages that may occur in the area where the
DAC is functioning. iCoupler provides isolation in excess of
2.5 kV. Because the AD5062 uses a 3-wire serial logic interface,
the ADuM130x family provides an ideal digital solution for the
DAC interface.
The ADuM130x isolators provide three independent isolation
channels in a variety of channel configurations and data rates.
They operate across the full range from 2.7 V to 5.5 V, providing
compatibility with lower voltage systems as well as enabling a
voltage translation functionality across the isolation barrier.
Figure 44 shows a typical galvanically isolated configuration
using the AD5062. The power supply to the part also needs to
be isolated; this is accomplished by using a transformer. On the
DAC side of the transformer, a 5 V regulator provides the 5 V
supply required for the AD5062.
0.1
μF
10
μF
VDD
GND
POWER
5V
REGULATOR
AD5062
04766-038
ADuM1300
SCLK
V0A
V1A
SCLK
VOUT
SYNC
V0B
V1B
SDI
DIN
V0C
V1C
DATA
Figure 44. AD5062 with a Galvanically Isolated Interface
POWER SUPPLY BYPASSING AND GROUNDING
When accuracy is important in a circuit, it is helpful to carefully
consider the power supply and ground return layout on the
board. The printed circuit board containing the AD5062 should
have separate analog and digital sections, each having its own
area of the board. If the AD5062 is in a system where other
devices require an AGND-to-DGND connection, the
connection should be made at one point only. This ground
point should be as close as possible to the AD5062.
The power supply to the AD5062 should be bypassed with
10 μF and 0.1 μF capacitors. The capacitors should be physically
as close as possible to the device, with the 0.1 μF capacitor
ideally right up against the device. The 10 μF capacitors are the
tantalum bead type. It is important that the 0.1 μF capacitor has
low effective series resistance (ESR) and effective series
inductance (ESI), as do common ceramic types of capacitors.
This 0.1 μF capacitor provides a low impedance path to ground
for high frequencies caused by transient currents due to internal
logic switching.
The power supply line itself should have as large a trace as
possible to provide a low impedance path and reduce glitch
effects on the supply line. Clocks and other fast switching
digital signals should be shielded from other parts of the board
by digital ground. Avoid crossover of digital and analog signals,
if possible. When traces cross on opposite sides of the board,
ensure that they run at right angles to each other to reduce
feedthrough effects through the board. The best board layout
technique is the microstrip technique where the component
side of the board is dedicated to the ground plane only, and the
signal traces are placed on the solder side. However, this is not
always possible with a two-layer board.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5062ARJZ-1REEL7 | 功能描述:IC DAC 16BIT 2.7-5.5V SOT23-8 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:nanoDAC™ 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD5062BRJ-1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Full Accurate 16 Bit Vout nanoDac, 2.7V- 5.5V, in a Sot 23 |
| AD5062BRJ-2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Full Accurate 16 Bit Vout nanoDac, 2.7V- 5.5V, in a Sot 23 |
| AD5062BRJ-3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Full Accurate 16 Bit Vout nanoDac, 2.7V- 5.5V, in a Sot 23 |
| AD5062BRJZ-1 | 制造商:Analog Devices 功能描述:DAC 1CH R-2R 16BIT 8PIN SOT-23 - Bulk |
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