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參數(shù)資料
| 型號(hào)： | AD7804BRZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT QUAD SRL 16-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 設(shè)置時(shí)間： | 1.5µs |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 模擬和數(shù)字 |
| 功率耗散（最大）： | 66mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 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) |
| 輸出數(shù)目和類型： | 8 電壓，雙極 |
| 采樣率（每秒）： | 667k |
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GENERAL DESCRIPTION
The AD7804/AD7808 are quad/octal 10-bit digital-to-analog
converters, with serial load capabilities, while the AD7805/AD7809
are quad/octal 10-bit digital-to-analog converters with parallel
load capabilities. These parts operate from a +3.3 V to +5 V
(
±10%) power supply and incorporates an on-chip reference.
These DACs provide output signals in the form of VBIAS
± V
SWING.
VSWING is derived internally from VBIAS. On-chip control registers
include a system control register and channel control registers.
The system control register has control over all DACs in the
package. The channel control registers allow individual control
of DACs. The complete transfer function of each individual
DAC can be shifted around the VBIAS point using an on-chip
Sub DAC. All DACs contain double buffered data inputs,
which allow all analog outputs to be simultaneously updated
using the asynchronous LDAC input.
Control Features
Channels Controlled
Main DAC
Sub DAC
Hardware Clear
All
System Control
Power Down1
All
System Standby2
All
System Clear
All
Input Coding
All
Channel Control
Channel Standby2
Selective
Channel Clear
Selective
VBIAS
Selective
NOTES
1Power-down function powers down all internal circuitry including the reference.
2Standby functions power down all circuitry except for the reference.
FUNCTIONAL BLOCK DIAGRAMS
VOUTD
VOUTC
VOUTB
VOUTA
CHANNEL C
CONTROL REG
CHANNEL B
CONTROL REG
CHANNEL A
CONTROL REG
DAC
REGISTER
DAC D
VBIAS
DATA
REGISTER
AVDD
DIVIDER
CHANNEL D
CONTROL REG
REFIN
REFOUT
LDAC
CLR
AVDD DVDD AGND DGND
CLKIN
FSIN
AD7804/
AD7808
COMP
SDIN
POWER ON
RESET
DAC
REGISTER
DAC C
VBIAS
DATA
REGISTER
DAC
REGISTER
DAC B
VBIAS
DATA
REGISTER
MUX
DAC
REGISTER
DAC A
VBIAS
DATA
REGISTER
SYSTEM
CONTROL REG
INPUT SHIFT
REGISTER &
CONTROL LOGIC
MUX
1.23V REF
MUX
VOUTG*
VOUTE*
VOUTH*
VOUTF*
PD**
**ONLY AD7804 SHOWN FOR CLARITY
**SHOWS ADDITIONAL CHANNELS ON THE AD7808
**PIN ON THE AD7808 ONLY
VOUTD
VOUTC
VOUTB
VOUTA
CHANNEL C
CONTROL REG
CHANNEL B
CONTROL REG
CHANNEL A
CONTROL REG
DAC
REGISTER
DAC D
VBIAS
DATA
REGISTER
AVDD
DIVIDER
CHANNEL D
CONTROL REG
REFIN
REFOUT
LDAC
CLR
AVDD DVDD
AGND DGND
WR
CS
AD7805/
AD7809
COMP
POWER ON
RESET
MUX
DAC
REGISTER
DAC C
VBIAS
DATA
REGISTER
DAC
REGISTER
DAC B
VBIAS
DATA
REGISTER
MUX
DAC
REGISTER
DAC A
VBIAS
DATA
REGISTER
SYSTEM
CONTROL REG
INPUT
REGISTER
MUX
1.23V REF
CONTROL
LOGIC
MODE A0
A1
DB9 DB2
DB1 DB0
VOUTG*
VOUTH*
PD**
**ONLY AD7805 SHOWN FOR CLARITY
**SHOWS ADDITIONAL CHANNELS ON THE AD7809
**PIN ON THE AD7809 ONLY
A2**
VOUTE*
VOUTF*
Index on Page 26.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
+3.3 V to +5 V Quad/Octal 10-Bit DACs
FEATURES
Four 10-Bit DACs in One Package
Serial and Parallel Loading Facilities Available
AD7804 Quad 10-Bit Serial Loading
AD7805 Quad 10-Bit Parallel Loading
AD7808 Octal 10-Bit Serial Loading
AD7809 Octal 10-Bit Parallel Loading
+3.3 V to +5 V Operation
Power-Down Mode
Power-On Reset
Standby Mode (All DACs/Individual DACs)
Low Power All CMOS Construction
10-Bit Resolution
Double Buffered DAC Registers
Dual External Reference Capability
APPLICATIONS
Optical Disk Drives
Instrumentation and Communication Systems
Process Control and Voltage Setpoint Control
Trim Potentiometer Replacement
Automatic Calibration
AD7804/AD7805/AD7808/AD7809
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7804CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:10-Bit Digital-to-Analog Converter |
| AD7804CR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:10-Bit Digital-to-Analog Converter |
| AD7805 | 制造商:AD 制造商全稱:Analog Devices 功能描述:+3.3 V to +5 V Quad/Octal 10-Bit DACs |
| AD7805BN | 制造商:Analog Devices 功能描述:DAC 4-CH 10-bit 28-Pin PDIP W Tube 制造商:Rochester Electronics LLC 功能描述:QUAD 10-BIT PARALLEL DAC - Bulk |
| AD7805BNZ | 功能描述:IC DAC 10BIT QUAD PARALLEL 28DIP 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:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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