參數(shù)資料
型號(hào)： AD7400AYRWZ-RL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 0K
描述： IC MODULATOR SIGMA-DELTA 16SOIC
標(biāo)準(zhǔn)包裝： 1,000
類(lèi)型： 調(diào)制器
分辨率（位）： 16 b
采樣率（每秒）： 10M
數(shù)據(jù)接口： 串行
電壓電源： 單電源
電源電壓： 4.5 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC W
包裝： 帶卷 (TR)
Isolated Sigma-Delta Modulator
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2008–2012 Analog Devices, Inc. All rights reserved.
FEATURES
10 MHz clock rate
Second-order modulator
16 bits, no missing codes
±2 LSB INL typical at 16 bits
1.5 V/°C typical offset drift
On-board digital isolator
On-board reference
±250 mV analog input range
Low power operation: 15.5 mA typical at 5.5 V
40°C to +125°C operating range
16-lead SOIC package
AD7401A, external clock version in 16-lead SOIC
Safety and regulatory approvals
UL recognition
5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 891 V peak
APPLICATIONS
AC motor controls
Shunt current monitoring
Data acquisition systems
Analog-to-digital and opto-isolator replacements
GENERAL DESCRIPTION
The AD7400A1 is a second-order, Σ-Δ modulator that converts
an analog input signal into a high speed, 1-bit data stream with
on-chip digital isolation based on Analog Devices, Inc., iCoupler
technology. The AD7400A operates from a 5 V power supply
and accepts a differential input signal of ±250 mV (±320 mV
full scale). The analog input is sampled continuously by the
analog modulator, eliminating the need for external sample-
and-hold circuitry. The input information is contained in the
output stream as a density of ones with a data rate of 10 MHz.
The original information can be reconstructed with an appropriate
digital filter. The serial I/O can use a 5 V or a 3 V supply (VDD2).
The serial interface is digitally isolated. High speed CMOS,
combined with monolithic air core transformer technology,
means the on-chip isolation provides outstanding performance
characteristics superior to alternatives such as optocoupler
devices. The part contains an on-chip reference and has an
operating temperature range of 40°C to +125°C. The AD7400A
is offered in a 16-lead SOIC package.
1
Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329.
FUNCTIONAL BLOCK DIAGRAM
VIN+
VDD1
VDD2
VIN–
Σ-Δ ADC
CONTROL LOGIC
AD7400A
BUF
T/H
REF
UPDATE
GND1
GND2
MDAT
MCLKOUT
ENCODE
DECODE
WATCHDOG
UPDATE
07077-
001
Figure 1.
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AD7400YRWZ-REEL 功能描述:IC MODULATOR SIGMA-DELTA 16-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
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