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參數資料
| 型號： | AD5757ACPZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 15 us SETTLING TIME, 16-BIT DAC, QCC64 |
| 封裝： | 9 X 9 MM, ROHS COMPLIANT, MO-220VMMD-4, LFCSP-64 |
| 文件頁數： | 1/44頁 |
| 文件大小： | 1122K |
| 代理商： | AD5757ACPZ |
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Quad Channel, 16-Bit,
Serial Input, 4 mA to 20 mA Output DAC,
Dynamic Power Control, HART Connectivity
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
2011 Analog Devices, Inc. All rights reserved.
FEATURES
16-bit resolution and monotonicity
Dynamic power control for thermal management
or external PMOS mode
Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA,
or 0 mA to 24 mA
±0.05% total unadjusted error (TUE) maximum
User programmable offset and gain
On-chip diagnostics
On-chip reference (±10 ppm/°C maximum)
40°C to +105°C temperature range
APPLICATIONS
Process control
Actuator control
PLCs
HART network connectivity
GENERAL DESCRIPTION
The AD5757 is a quad, current output DAC that operates with a
power supply range from 10.8 V to 33 V. On-chip dynamic
power control minimizes package power dissipation by regulat-
ing the voltage on the output driver from 7.4 V to 29.5 V using
a dc-to-dc boost converter optimized for minimum on-chip
power dissipation.
Each channel has a corresponding CHART pin so that HART
signals can be coupled onto the current output of the AD5757.
The part uses a versatile 3-wire serial interface that operates at
clock rates of up to 30 MHz and is compatible with standard
SPI, QSPI, MICROWIRE, DSP, and microcontroller interface
standards. The interface also features optional CRC-8 packet
error checking, as well as a watchdog timer that monitors
activity on the interface.
PRODUCT HIGHLIGHTS
1.
Dynamic power control for thermal management.
2.
16-bit performance.
3.
Multichannel.
4.
HART compliant.
COMPANION PRODUCTS
Additional companion products on the AD5757 product page
FUNCTIONAL BLOCK DIAGRAM
AD5757
AGND
AVDD
+15V
AVCC
5.0V
DVDD
DGND
LDAC
CLEAR
SCLK
SDIN
SYNC
SDO
FAULT
DC-TO-DC
CONVERTER
DIGITAL
INTERFACE
REFERENCE
CURRENT AND
VOLTAGE
OUTPUT RANGE
SCALING
ALERT
REFOUT
REFIN
NOTES
1. x = A, B, C, AND D.
AD1
AD0
DAC A
SWx
VBOOST_x
GAIN REG A
OFFSET REG A
RSET_x
CHARTx
IOUT_x
DAC CHANNEL B
DAC CHANNEL A
DAC CHANNEL C
DAC CHANNEL D
7.4V TO 29.5V
+
0922
5-
101
Figure 1.
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相關代理商/技術參數 |
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| AD5757ACPZ-REEL7 | 功能描述:IC DAC 16BIT QUAD IOUT 64LFCSP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目: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） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD5757X | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity |
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