參數(shù)資料
型號(hào)： AD5737ACPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 36/44頁(yè)
文件大?。?/td> 0K
描述： IC DAC QUAD 12BIT CUR 64-LFCSP
標(biāo)準(zhǔn)包裝： 1
設(shè)置時(shí)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(yīng)商設(shè)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）： *
Data Sheet
AD5737
Rev. C | Page 41 of 44
TRANSIENT VOLTAGE PROTECTION
The AD5737 contains ESD protection diodes that prevent dam-
age from normal handling. The industrial control environment
can, however, subject I/O circuits to much higher transients. To
protect the AD5737 from excessively high voltage transients,
external power diodes and a surge current limiting resistor (RP)
are required, as shown in Figure 62. A typical value for RP is 10 .
The two protection diodes and the resistor (RP) must have appro-
priate power ratings.
RLOAD
R
D1
D2
P
AD5737
VBOOST_x
IOUT_x
AGND
CDCDC
4.7F
CFILTER
0.1F
RFILTER
10
(FROM
DC-TO-DC
CONVERTER)
10067-
079
Figure 62. Output Transient Voltage Protection
Further protection can be provided using transient voltage
suppressors (TVSs), also referred to as transorbs. These compo-
nents are available as unidirectional suppressors, which protect
against positive high voltage transients, and as bidirectional
suppressors, which protect against both positive and negative
high voltage transients. Transient voltage suppressors are avail-
able in a wide range of standoff and breakdown voltage ratings.
The TVS should be sized with the lowest breakdown voltage
possible while not conducting in the functional range of the
current output.
It is recommended that all field connected nodes be protected.
MICROPROCESSOR INTERFACING
Microprocessor interfacing to the AD5737 is via a serial bus
that uses a protocol compatible with microcontrollers and DSP
processors. The communication channel is a 3-wire minimum
interface consisting of a clock signal, a data signal, and a latch
signal. The AD5737 requires a 24-bit data-word with data valid
on the falling edge of SCLK.
The DAC output update is initiated either on the rising edge of
LDAC or, if LDAC is held low, on the rising edge of SYNC. The
contents of the registers can be read using the readback function.
AD5737-to-ADSP-BF527 Interface
The AD5737 can be connected directly to the SPORT interface
of the ADSP-BF527, an Analog Devices, Inc., Blackfin DSP.
Figure 63 shows how the SPORT interface can be connected
to control the AD5737.
AD5737
SYNC
SCLK
SDIN
LDAC
SPORT_TFS
SPORT_TSCLK
SPORT_DT0
GPIO0
ADSP-BF527
10067-
080
Figure 63. AD5737-to-ADSP-BF527 SPORT Interface
LAYOUT GUIDELINES
Grounding
In any circuit where accuracy is important, careful consider-
ation of the power supply and ground return layout helps to
ensure the rated performance. The printed circuit board on
which the AD5737 is mounted should be designed so that the
analog and digital sections are separated and confined to
certain areas of the board. If the AD5737 is in a system where
multiple devices require an AGND-to-DGND connection, the
connection should be made at one point only. The star ground
point should be established as close as possible to the device.
The GNDSWx pin and the ground connection for the AVCC
supply are referred to as PGND. PGND should be confined to
certain areas of the board, and the PGND-to-AGND connection
should be made at one point only.
Supply Decoupling
The AD5737 should have ample supply bypassing of 10 F
in parallel with 0.1 F on each supply, located as close to the
package as possible, ideally right up against the device. The
10 F capacitors are the tantalum bead type. The 0.1 F cap-
acitors should have low effective series resistance (ESR) and low
effective series inductance (ESL), such as the common ceramic
types, which provide a low impedance path to ground at high
frequencies to handle transient currents due to internal logic
switching.
相關(guān)PDF資料
PDF描述
AD573JD IC ADC 10BIT SAR REG 20-CDIP
AD5744RCSUZ-REEL7 IC DAC QUAD 14BIT 1LSB 32TQFP
AD574AKPZ-REEL IC ADC 12BIT W/REF/CLK 28-PLCC
AD5752AREZ IC DAC DUAL 16BIT SERIAL 24TSSOP
AD5752RBREZ-REEL7 IC DAC DUAL 16BIT SERIAL 24TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5737ACPZ-RL7 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output
AD5737X 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity
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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(yīng)商設(shè)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(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)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(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
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

*
*
*