参数资料
| 型号： | AD5522JSVDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 33/64页 |
| 文件大小： | 0K |
| 描述： | IC PMU QUAD 16BIT DAC 80-TQFP |
| 产品变化通告： | Improve FI ac crosstalk |
| 设计资源： | Parametric Measurement Unit and Supporting Components for PAD Appls Using AD5522 and AD7685 (CN0104) |
| 标准包装： | 1 |
| 类型： | 每引脚参数测量单元（PPMU） |
| 应用： | 自动测试设备 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 80-TQFP 裸露焊盘 |
| 供应商设备封装： | 80-TQFP（12x12） |
| 包装： | 托盘 |
| 产品目录页面： | 798 (CN2011-ZH PDF) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页当前第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页
Data Sheet
AD5522
Rev. E | Page 39 of 64
Calibration Example
Nominal offset coefficient = 32,768
Nominal gain coefficient = 65,535
For example, the gain error = 0.5%, and the offset error = 100 mV.
Gain error (0.5%) calibration:
65,535 × 0.995 = 65,207
Therefore, load Code 1111 1110 1011 0111 to the M register.
Offset error (100 mV) calibration:
LSB size = 10.25/65,535 = 156 V
Offset coefficient for 100 mV offset = 100/0.156 = 641 LSBs
Therefore, load Code 0111 1101 0111 1111 to the C register.
ADDITIONAL CALIBRATION
The techniques described in the Calibration section are usually
sufficient to reduce the zero-scale and gain errors. However,
there are limitations whereby the errors may not be sufficiently
reduced. For example, the offset (C) register can only be used to
reduce the offset caused by negative zero-scale error. A positive
offset cannot be reduced. Likewise, if the maximum voltage is
below the ideal value, that is, a negative gain error, the gain (M)
register cannot be used to increase the gain to compensate for
the error. These limitations can be overcome by increasing the
reference value.
SYSTEM LEVEL CALIBRATION
There are many ways to calibrate the device on power-on.
Following is an example of how to calibrate the FIN DAC of the
device without a DUT or DUT board connected.
The calibration procedure for the force and measure circuitry is
as follows:
1. Calibrate the force voltage (2 points).
In FV mode, write zero scale to the FIN DAC. Connect
SYS_FORCE to FOHx and SYS_SENSE to MEASVHx,
and close the internal force/sense switch (SW7).
Using the system PMU, measure the error between the
voltage at FOHx/MEASVHx and the desired value.
Similarly, load full scale to the FIN DAC and measure the
error between the voltage at FOHx/MEASVHx and the
desired value. Calculate the M and C values. Load these
values to the appropriate M and C registers of the FIN DAC.
2. Calibrate the measure voltage (2 points).
Connect SYS_FORCE to FOHx and SYS_SENSE to
MEASVHx, and close the internal force/sense switch (SW7).
Force voltage on FOHx via SYS_FORCE and measure the
voltage at MEASOUTx. The difference is the error between
the actual forced voltage and the voltage at MEASOUTx.
3. Calibrate the force current (2 points).
In FI mode, write zero scale to the FIN DAC. Connect
SYS_FORCE to an external ammeter and to the FOHx pin.
Measure the error between the ammeter reading and the
MEASOUTx reading. Repeat this step with full scale
loaded to the FIN DAC. Calculate the M and C values.
4. Calibrate the measure current (2 points).
In FI mode, write zero scale to the FIN DAC. Connect
SYS_FORCE to an external ammeter and to the FOHx pin.
Measure the error between the ammeter reading and the
MEASOUTx reading. Repeat this step with full scale
loaded to the FIN DAC.
5. Repeat this procedure for all four channels.
Similarly, calibrate the comparator and clamp DACs, and load
the appropriate gain and offset registers. Calibrating these
DACs requires some successive approximation to find where
the comparator trips or the clamps engage.
相关PDF资料 |
PDF描述 |
|---|---|
| ESC65DRTI | CONN EDGECARD 130PS DIP .100 SLD |
| AMC30DRTS | CONN EDGECARD 60POS .100 DIP SLD |
| AMC30DRES | CONN EDGECARD 60POS .100 EYELET |
| ASC31DRAS | CONN EDGECARD 62POS .100 R/A DIP |
| RGM40DTMT | CONN EDGECARD 80POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5522JSVUZ | 功能描述:IC PMU QUAD 16BIT DAC 80-TQFP RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
| AD5522JSVUZ-RL | 功能描述:Per-Pin Parametric Measurement Unit (PPMU) IC Automatic Test Equipment 80-TQFP-EP (12x12) 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:有效 类型:每引脚参数测量单元（PPMU） 应用:自动测试设备 安装类型:表面贴装 封装/外壳:80-TQFP 裸露焊盘 供应商器件封装:80-TQFP-EP（12x12） 标准包装:1,000 |
| AD5523JCPZ | 制造商:AD 制造商全称:Analog Devices 功能描述:Quad Parametric Measurement Unit With Integrated 16-Bit Level Setting DACs |
| AD5530 | 制造商:AD 制造商全称:Analog Devices 功能描述:Serial Input, Voltage Output 12-/14-Bit DACs |
| AD5530_07 | 制造商:AD 制造商全称:Analog Devices 功能描述:Serial Input, Voltage Output 12-/14-Bit Digital-to-Analog Converters |
发布紧急采购，3分钟左右您将得到回复。