参数资料
型号: AD7225LRZ
厂商: Analog Devices Inc
文件页数: 7/24页
文件大小: 0K
描述: IC DAC 8BIT QUAD W/AMP 24SOIC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 31
设置时间: 4µs
位数: 8
转换器数目: 4
电压电源: 双 ±
功率耗散(最大): 500mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 管件
输出数目和类型: 4 电压,单极;4 电压,双极
采样率(每秒): 200k
AD7225
Rev. C | Page 15 of 24
AGND BIAS
The AD7225 AGND pin can be biased above system ground
(AD7225 DGND) to provide an offset zero analog output
voltage level. Figure 18 shows a circuit configuration to achieve
this for DAC Channel A of the AD7225. The output voltage,
VOUTA, can be expressed as:
VOUTA = VBIAS + DA(VIN)
where DA is a fractional representation of the digital word in
DAC Latch A (0 ≤ DA ≤ 255/256).
VDD
VSS
AGND
VBIAS
VIN
DGND
VOUTA
DAC A
AD7225*
VREFA
*DIGITAL INPUTS OMITTED FOR CLARITY.
00986-
018
Figure 18. AGND Bias Circuit
For a given VIN, increasing AGND above system ground reduces
the effective VDD VREF, which must be at least 4 V to ensure
specified operation. Note that, because the AGND pin is
common to all four DACs, this method biases up the output
voltages of all the DACs in the AD7225. Note that VDD and VSS
of the AD7225 should be referenced to DGND.
相关PDF资料
PDF描述
VI-B3Y-MY-B1 CONVERTER MOD DC/DC 3.3V 33W
AD7541AKN IC DAC 12BIT MULTIPLYING 18-DIP
VI-B3Z-MY-B1 CONVERTER MOD DC/DC 2V 20W
DAC8512EPZ IC DAC 12BIT SRL LP 5V 8DIP
AD7245JPZ IC DAC 12BIT LC2MOS 28-PLCC
相关代理商/技术参数
参数描述
AD7225LRZ-REEL 功能描述:IC DAC 8BIT QUAD W/AMP 24SOIC 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 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
AD7225TCHIPS 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter
AD7225TE 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Quad 8-Bit DAC with Separate Reference Inputs
AD7225TE/883B 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter
AD7225TQ 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Quad 8-Bit DAC with Separate Reference Inputs