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參數資料
| 型號： | AD7399BRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT QUAD SRL 16-TSSOP |
| 產品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 1,000 |
| 設置時間： | 6µs |
| 位數： | 10 |
| 數據接口： | 串行，SPI? |
| 轉換器數目： | 4 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 16mW |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數目和類型： | 4 電壓，單極 |
| 采樣率（每秒）： | 167k |
Quad, Serial-Input
12-Bit/10-Bit DACs
AD7398/AD7399
Rev. C
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
Fax: 781.461.3113
2000–2011 Analog Devices, Inc. All rights reserved.
FEATURES
AD7398—12-bit resolution
AD7399—10-bit resolution
Programmable power shutdown
Single (3 V to 5 V) or dual (±5 V) supply operation
3-wire, serial SPI-compatible interface
Internal power-on reset
Double buffered registers for simultaneous
multichannel DAC update
Four separate rail-to-rail reference inputs
Thin profile, TSSOP-16 package available
Low tempco: 1.5 ppm/°C
Qualified for automotive applications
APPLICATIONS
Automotive output voltage span
Portable communications
Digitally controlled calibration
PC peripherals
FUNCTIONAL BLOCK DIAGRAM
DAC A
REGISTER
INPUT
REG A
DAC B
REGISTER
INPUT
REG B
DAC C
REGISTER
INPUT
REG C
DAC D
REGISTER
INPUT
REG D
SERIAL
REGISTER
POWER
ON RESET
DAC D
DAC C
DAC B
12/10
CLK
VOUTA
VOUTB
VOUTC
VOUTD
SDI
VSS
RS
LDAC
VREFC
VREFD
GND
CS
VDD
VREFB
VREFA
AD7398/AD7399
02179-
001
Figure 1.
GENERAL DESCRIPTION
The AD7398/AD7399 family of quad, 12-bit/10-bit, voltage
output digital-to-analog converters (DACs) is designed to
operate from a single 3 V to 5 V supply or a dual ±5 V supply.
Built with the Analog Devices, Inc. robust CBCMOS process,
these monolithic DACs offer the user low cost with ease-of-use
in single or dual-supply systems.
The applied external reference, VREF, determines the full-scale
output voltage. Valid VREF values include VSS < VREF < VDD that
result in a wide selection of full-scale outputs. For multiplying
applications, ac inputs can be as large as ±5 VP.
A doubled-buffered serial-data interface offers high speed, 3-wire,
SPI- and microcontroller-compatible inputs using serial data-in
(SDI), clock (CLK), and a chip-select (CS). A common level-
sensitive, load-DAC strobe (LDAC) input allows simultaneous
update of all DAC outputs from previously loaded input registers.
Additionally, an internal power-on reset forces the output voltage to
zero at system turn on. An external asynchronous reset (RS) also
forces all registers to the zero code state. A programmable power-
shutdown feature reduces power dissipation on unused DACs.
Both parts are offered in the same pinout, enabling users to
select the appropriate resolution for their application without
redesigning the layout. For 8-bit resolution applications, see the
pin-compatible AD7304 product.
The AD7398/AD7399 are specified over the extended industrial
(40°C to +125°C) temperature range. Parts are available in
16-lead, wide body SOIC and ultracompact, thin, 1.1 mm
TSSOP packages.
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0
4096
3584
3072
2560
2048
1536
1024
512
DNL
(
L
S
B)
CODE (Decimal)
02179-
002
VDD = +5V
VSS = –5V
VREF = +2.5V
TA = 25°C
Figure 2. AD7398 DNL vs. Code (TA = 25°C)
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相關代理商/技術參數 |
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