参数资料
型号: AD5398ABCBZ-REEL
厂商: Analog Devices Inc
文件页数: 6/17页
文件大小: 0K
描述: IC DAC 10BIT CURRENT-SINK 9WLCSP
产品培训模块: Data Converter Fundamentals
DAC Architectures
产品变化通告: 8mm Carrier Tape Changes 28/Feb/2012
标准包装: 10,000
设置时间: 250µs
位数: 10
数据接口: I²C,串行
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 9-UFBGA,WLCSP
供应商设备封装: 9-WLCSP(1.52 x 1.69)
包装: 带卷 (TR)
输出数目和类型: 1 电流,单极
采样率(每秒): *
AD5398
Rev. 0 | Page 13 of 16
APPLICATIONS INFORMATION
The AD5398A is designed to drive both spring preloaded
and nonspring linear motors used in applications such as lens
autofocus, image stabilization, or optical zoom. The operating
principle of the spring-preloaded motor is that the lens position
is controlled by the balancing of a voice coil and a spring. Figure 21
shows the transfer curve of a typical spring preloaded linear
motor for autofocus. The key points of this transfer function are
displacement or stroke, which is the actual distance the lens
moves in millimeters (mm), and the current through the motor
in milliamps (mA).
A start current is associated with spring-preloaded linear motors,
which is effectively a threshold current that must be exceeded for
any displacement in the lens to occur. The start current is usually
20 mA or greater; the rated stroke or displacement is usually
0.25 mm to 0.4 mm; and the slope of the transfer curve is approxi-
mately 10 μm/mA or less.
The AD5398A is designed to sink up to 120 mA, which is
more than adequate for available commercial linear motors or
voice coils. Another factor that makes the AD5398A the ideal
solution for these applications is the monotonicity of the device,
which ensures that lens positioning is repeatable for the applica-
tion of a given digital word.
Figure 22 shows a typical application circuit for the AD5398A.
07
79
5-
0
20
0.5
0.4
0.3
0.2
0.1
0
10
20
30
40
START
CURRENT
50
60
70
80
90
100 110 120
0
SINK CURRENT (mA)
S
T
RO
KE
(
m
m)
Figure 21. Spring Preloaded Voice Coil Stroke vs. Sink Current
0
779
5-
0
22
POWER-ON
RESET
D1
POWER-DOWN
RESET
VOICE
COIL
ACTUATOR
RSENSE
3.3
VDD
I2C SERIAL
INTERFACE
10-BIT
CURRENT
OUTPUT DAC
REFERENCE
R
AD5398A
SCL
SDA
I2C MASTER
DEVICE
I2C SLAVE
DEVICE
I2C SLAVE
DEVICE
RP
VDD
VCC
0.1F
10F
+
0.1F
10F
+
SDA
AGND
DGND
VDD
SCL
PD
ISINK
DGND
Figure 22. Typical Application Circuit
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AD5398A-WAFER 功能描述:10 Bit Digital to Analog Converter 1 9-WLCSP (1.52 x 1.69) 制造商:analog devices inc. 系列:- 包装:散装 零件状态:上次购买时间 位数:10 数模转换器数:1 建立时间:250μs(标准) 输出类型:Current - Unbuffered 差分输出:无 数据接口:I2C 参考类型:内部 电压 - 电源,模拟:2.7 V ~ 5.5 V 电压 - 电源,数字:2.7 V ~ 5.5 V INL/DNL(LSB):±1.5,±1(最大) 架构:电流阱 工作温度:-30°C ~ 85°C 封装/外壳:9-UFBGA,WLCSP 供应商器件封装:9-WLCSP(1.52 x 1.69) 标准包装:1
AD5398BCBZ-REEL 功能描述:IC DAC 10BIT CURRENT-SINK 9WLCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散(最大):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率(每秒):*
AD5398BCBZ-REEL7 功能描述:IC DAC 10BIT CURRENT-SINK 9WLCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 设置时间:4µs 位数:12 数据接口:串行 转换器数目:2 电压电源:单电源 功率耗散(最大):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 供应商设备封装:8-uMAX 包装:管件 输出数目和类型:2 电压,单极 采样率(每秒):* 产品目录页面:1398 (CN2011-ZH PDF)
AD5398BCPZ-REEL 功能描述:IC DAC 10BIT CURRENT-SINK 8LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 设计资源:Unipolar, Precision DC Digital-to-Analog Conversion using AD5450/1/2/3 8-14-Bit DACs (CN0052) Precision, Bipolar, Configuration for AD5450/1/2/3 8-14bit Multiplying DACs (CN0053) AC Signal Processing Using AD5450/1/2/3 Current Output DACs (CN0054) Programmable Gain Element Using AD5450/1/2/3 Current Output DAC Family (CN0055) Single Supply Low Noise LED Current Source Driver Using a Current Output DAC in the Reverse Mode (CN0139) 标准包装:10,000 系列:- 设置时间:- 位数:12 数据接口:DSP,MICROWIRE?,QSPI?,串行,SPI? 转换器数目:1 电压电源:单电源 功率耗散(最大):- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 薄型,TSOT-23-8 供应商设备封装:TSOT-23-8 包装:带卷 (TR) 输出数目和类型:1 电流,单极;1 电流,双极 采样率(每秒):2.7M