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參數(shù)資料
| 型號： | AD5737ACPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 37/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC QUAD 12BIT CUR 64-LFCSP |
| 標準包裝： | 1 |
| 設置時間： | 15µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 托盤 |
| 輸出數(shù)目和類型： | 4 電流，單極 |
| 采樣率（每秒）： | * |
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AD5737
Data Sheet
Rev. C | Page 42 of 44
Traces
The power supply lines of the AD5737 should use as large a trace
as possible to provide low impedance paths and reduce the effects
of glitches on the power supply line. Fast switching signals such
as clocks should be shielded with digital ground to prevent radi-
ating noise to other parts of the board and should never be run
near the reference inputs. A ground line routed between the
SDIN and SCLK traces helps reduce crosstalk between them (not
required on a multilayer board that has a separate ground plane,
but separating the lines helps). It is essential to minimize noise on
the REFIN line because it couples through to the DAC output.
Avoid crossover of digital and analog signals. Traces on oppo-
site sides of the board should run at right angles to each other
to reduce the effects of feedthrough on the board. A microstrip
technique is by far the best method, but it is not always possible
with a double-sided board. In this technique, the component
side of the board is dedicated to ground plane, and signal traces
are placed on the solder side.
DC-to-DC Converters
To achieve high efficiency, good regulation, and stability, a
well-designed printed circuit board layout is required.
Follow these guidelines when designing printed circuit boards
Keep the low ESR input capacitor, CIN, close to AVCC and
PGND.
Keep the high current path from CIN through the inductor
(LDCDC) to SWx and PGND as short as possible.
Keep the high current path from CIN through the inductor
(LDCDC), the diode (DDCDC), and the output capacitor (CDCDC)
as short as possible.
Keep high current traces as short and as wide as possible.
The path from CIN through the inductor (LDCDC) to SWx
and PGND should be able to handle a minimum of 1 A.
Place the compensation components as close as possible to
the COMPDCDC_x pin.
Avoid routing high impedance traces near any node
connected to SWx or near the inductor to prevent radiated
noise injection.
GALVANICALLY ISOLATED INTERFACE
In many process control applications, it is necessary to provide
an isolation barrier between the controller and the unit being
controlled to protect and isolate the controlling circuitry from
any hazardous common-mode voltages that may occur. The
Analog Devices iCoupler products can provide voltage isolation
in excess of 2.5 kV. The serial loading structure of the AD5737
makes it ideal for isolated interfaces because the number of inter-
face lines is kept to a minimum. Figure 64 shows a 4-channel
isolated interface to the AD5737 using an ADuM1411. For
more information, visit www.analog.com.
SERIAL CLOCK
OUT
TO SCLK
ENCODE
DECODE
SERIAL DATA
OUT
TO SDIN
ENCODE
DECODE
SYNC OUT
ENCODE
DECODE
CONTROL OUT
ENCODE
DECODE
MICROCONTROLLER
ADuM1411
TO SYNC
TO LDAC
10067-
081
VIA
VOA
VIB
VOB
VIC
VOC
VID
VOD
Figure 64. 4-Channel Isolated Interface to the AD5737
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| AD573JD | 功能描述:IC ADC 10BIT SAR REG 20-CDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| AD573JN | 功能描述:IC ADC 10BIT SAR REGISTER 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| AD573JNZ | 功能描述:IC ADC 10BIT SAR REGISTER 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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