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參數資料
| 型號： | AD5415YRUZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/29頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL MULT 24-TSSOP |
| 產品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 2,500 |
| 設置時間： | 120ns |
| 位數： | 12 |
| 數據接口： | 串行 |
| 轉換器數目： | 2 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 3.5µW |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 24-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數目和類型： | 4 電流，單極；4 電流，雙極 |
| 采樣率（每秒）： | 2.47M |
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Dual 12-Bit, High Bandwidth, Multiplying DAC
with 4-Quadrant Resistors and Serial Interface
Data Sheet
Rev. E
InformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
licenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2004–2013 Analog Devices, Inc. All rights reserved.
FEATURES
10 MHz multiplying bandwidth
On-chip 4-quadrant resistors allow flexible output ranges
INL of ±1 LSB
24-lead TSSOP package
2.5 V to 5.5 V supply operation
±10 V reference input
50 MHz serial interface
2.47 MSPS update rate
Extended temperature range: 40°C to 125°C
4-quadrant multiplication
Power-on reset
0.5 A typical current consumption
Guaranteed monotonic
Daisy-chain mode
Readback function
APPLICATIONS
Portable battery-powered applications
Waveform generators
Analog processing
Instrumentation applications
Programmable amplifiers and attenuators
Digitally controlled calibration
Programmable filters and oscillators
Composite video
Ultrasound
Gain, offset, and voltage trimming
GENERAL DESCRIPTION
The AD54151 is a CMOS, 12-bit, dual-channel, current output
digital-to-analog converter. This device operates from a 2.5 V to
5.5 V power supply, making it suited to battery-powered appli-
cations and other applications. As a result of being manufactured
on a CMOS submicron process, this part offers excellent 4-
quadrant multiplication characteristics, with large-signal
multiplying bandwidths of 10 MHz.
The applied external reference input voltage (VREF) determines
the full-scale output current. An integrated feedback resistor (RFB)
provides temperature tracking and full-scale voltage output when
combined with an external current-to-voltage precision amplifier.
In addition, this device contains the 4-quadrant resistors necessary
for bipolar operation and other configuration modes.
This DAC uses a double-buffered, 3-wire serial interface that is
compatible with SPI, QSPI, MICROWIRE, and most DSP
interface standards. In addition, a serial data out pin (SDO) allows
daisy-chaining when multiple packages are used. Data readback
allows the user to read the contents of the DAC register via the
SDO pin. On power-up, the internal shift register and latches
are filled with 0s, and the DAC outputs are at zero scale.
The AD5415 DAC is available in a 24-lead TSSOP package. The
EV-AD5415/49SDZ evaluation board is available for evaluating
DAC performance. For more information, see the UG-296
evaluation board user guide.
FUNCTIONAL BLOCK DIAGRAM
POWER-ON
RESET
INPUT
REGISTER
DAC
REGISTER
12-BIT
R-2R DAC B
INPUT
REGISTER
DAC
REGISTER
12-BIT
R-2R DAC A
SHIFT
REGISTER
VDD
SCLK
SDIN
GND
SDO
SYNC
LDAC
R3
2R
R2
2R
R1
2R
RFB
2R
R1
2R
RFB
2R
R3
2R
R2
2R
AD5415
R3A
R2_3A
R2A
VREFA R1A
R3B
R2_3B
R2B
VREFB R1B
RFBA
IOUT1A
IOUT2A
IOUT1B
IOUT2B
RFBB
CLR
04461-001
Figure 1.
1
U.S. Patent Number 5,689,257.
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