參數(shù)資料
型號(hào)： AD7808BN
廠商： ANALOG DEVICES INC
元件分類(lèi)： DAC
英文描述： +3.3 V to +5 V Quad/Octal 10-Bit DACs
中文描述： SERIAL INPUT LOADING, 1.5 us SETTLING TIME, 10-BIT DAC, PDIP24
封裝： PLASTIC, DIP-24
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 300K
代理商： AD7808BN
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 V
BIAS
±
V
SWING
.
V
SWING
is derived internally from V
BIAS
. 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 V
BIAS
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
Hardware Clear
System Control
Power Down
System Standby
2
System Clear
Input Coding
Channel Control
Channel Standby
2
Channel Clear
V
BIAS
NOTES
1
Power-down function powers down all internal circuitry including the reference.
2
Standby functions power down all circuitry except for the reference.
Channels Controlled
All
Main DAC
Sub DAC
All
All
All
All
Selective
Selective
Selective
FUNCTIONAL BLOCK DIAGRAMS
V
OUT
D
V
OUT
C
V
OUT
B
V
OUT
A
CCHANNEL C
CCHANNEL B
CCHANNEL A
REDAC
DAC D
V
BIAS
RDATA
AV
DD
DIVIDER
CCHANNEL D
REFIN
REFOUT
LDAC
CLR
AV
DD
DV
DD
AGND DGND
CLKIN
SDIN
FSIN
AD7804/
AD7808
COMP
PRESET
REDAC
DAC C
V
BIAS
RDATA
REDAC
DAC B
V
BIAS
RDATA
MUX
REDAC
DAC A
V
BIAS
RDATA
COSYSTEM
CINPUT SHIFT
MUX
MUX
1.23V REF
MUX
V
OUT
G*
V
OUT
E*
V
OUT
H*
V
OUT
F*
PD
**
**
ONLY AD7804 SHOWN FOR CLARITY
*
*SHOWS ADDITIONAL CHANNELS ON THE AD7808
**PIN ON THE AD7808 ONLY
V
OUT
D
V
OUT
C
V
OUT
B
V
OUT
A
CCHANNEL C
CCHANNEL B
CCHANNEL A
REDAC
DAC D
V
BIAS
RDATA
AV
DD
DIVIDER
CCHANNEL D
REFIN
REFOUT
LDAC
CLR
AV
DD
DV
DD
AGND DGND
WR
CS
AD7805/
AD7809
COMP
PRESET
MUX
REDAC
DAC C
V
BIAS
RDATA
REDAC
DAC B
V
BIAS
RDATA
MUX
REDAC
DAC A
V
BIAS
RDATA
COSYSTEM
RINPUT
MUX
MUX
1.23V REF
CLOGIC
MODE A0
**
ONLY AD7805 SHOWN FOR CLARITY
*
*SHOWS ADDITIONAL CHANNELS ON THE AD7809
**PIN ON THE AD7809 ONLY
A1
DB9 DB2
DB1 DB0
V
OUT
G*
V
OUT
H*
PD
**
A2**
V
OUT
E*
V
OUT
F*
*
Patent pending.
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
AD7804/AD7805/AD7808/AD7809*
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
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
相關(guān)PDF資料
PDF描述
AD7808BR +3.3 V to +5 V Quad/Octal 10-Bit DACs
AD7808BST High Efficiency Step-Down and Inverting DC/DC Converter; Package: SO; No of Pins: 8; Temperature Range: 0°C to +70°C
AD7809* High Efficiency Step-Down and Inverting DC/DC Converter; Package: PDIP; No of Pins: 8; Temperature Range: 0°C to +70°C
AD7809BST +3.3 V to +5 V Quad/Octal 10-Bit DACs
AD7810YRM 2.7 V to 5.5 V, 2 us, 10-Bit ADC in 8-Lead microSOIC/DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7808BNZ 功能描述:IC DAC 10BIT OCTAL SERIAL 24DIP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:2,400 系列:- 設(shè)置時(shí)間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:36-TFBGA 供應(yīng)商設(shè)備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:* 采樣率（每秒）:*
AD7808BNZ 制造商:Analog Devices 功能描述:10BIT DAC OCTAL SERIAL 7808 DIP24
AD7808BR 功能描述:IC DAC 10BIT 3.3V OCTAL 24-SOIC RoHS:否 類(lèi)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(lèi)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(lèi)型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k
AD7808BR-REEL 功能描述:IC DAC 10BIT OCTAL SRL 24-SOIC RoHS:否 類(lèi)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(lèi)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(lèi)型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k
AD7808BRZ 功能描述:IC DAC 10BIT OCTAL SRL 24-SOIC RoHS:是 類(lèi)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:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時(shí)間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類(lèi)型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁(yè)面:1398 (CN2011-ZH PDF)
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