参数资料
型号: AD7849CR-REEL
厂商: Analog Devices Inc
文件页数: 2/20页
文件大小: 0K
描述: IC DAC 16BIT SRL INP 20-SOIC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1,000
设置时间: 7µs
位数: 16
数据接口: 串行
转换器数目: 1
电压电源: 模拟和数字,双 ±
功率耗散(最大): 100mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC W
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
AD7849
Rev. C | Page 10 of 20
TERMINOLOGY
Least Significant Bit
This is the analog weighting of 1 bit of the digital word in a
DAC. For the B version and the C versions, 1 LSB = (VREF+
VREF)/216. For the A version, 1 LSB = (VREF+ VREF)/214.
Relative Accuracy
Relative accuracy or endpoint nonlinearity is a measure of the
maximum deviation from a straight line passing through the
endpoints of the DAC transfer function. It is measured after
adjusting for both endpoints (that is, offset and gain errors are
adjusted out) and is normally expressed in least significant bits
or as a percentage of full-scale range.
Differential Nonlinearity
Differential nonlinearity is the difference between the measured
change and the ideal change between any two adjacent codes. A
specified differential nonlinearity of less than ±1 LSB over the
operating temperature range ensures monotonicity.
Gain Error
Gain error is a measure of the output error between an ideal
DAC and the actual device output with all 1s loaded after offset
error has been adjusted out. Gain error is adjustable to zero
with an external potentiometer.
Offset Error
This is the error present at the device output with all 0s loaded
in the DAC. It is due to the op amp input offset voltage and bias
current and the DAC leakage current.
Bipolar Zero Error
When the AD7849 is connected for bipolar output and (100 …
000) is loaded to the DAC, the deviation of the analog output
from the ideal midscale of 0 V is called the bipolar zero error.
Digital-to-Analog Glitch Impulse
This is the amount of charge injected from the digital inputs to
the analog output when the inputs change state. Normally, this
is specified as the area of the glitch in nV-secs.
Multiplying Feedthrough Error
This is an ac error due to capacitive feedthrough from either of
the VREF terminals to VOUT when the DAC is loaded with all 0s.
Digital Feedthrough
When the DAC is not selected (SYNC is held high), high
frequency logic activity on the digital inputs is capacitively
coupled through the device to show up as noise on the VOUT pin.
This noise is digital feedthrough.
相关PDF资料
PDF描述
AD7564AR-B IC DAC 12BIT QUAD 3.3V LP 28SOIC
VI-B63-MU CONVERTER MOD DC/DC 24V 200W
AD7564BR IC DAC 12BIT LC2MOS QUAD 28-SOIC
VE-23X-IV-F2 CONVERTER MOD DC/DC 5.2V 150W
VE-B6P-MU CONVERTER MOD DC/DC 13.8V 200W
相关代理商/技术参数
参数描述
AD7849CRZ 功能描述:IC DAC 14/16BIT SRL-IN 20-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口: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:8-SOIC(0.154",3.90mm 宽) 供应商设备封装:8-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND
AD7849CRZ-REEL 功能描述:IC DAC 14/16BIT SRL-IN 20-SOIC 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
AD7849TQ 制造商:AD 制造商全称:Analog Devices 功能描述:Serial Input, 14-Bit/16-Bit DAC
AD784ARQZREEL 制造商:ANALOG 功能描述:NEW
AD7850JP 制造商:Rochester Electronics LLC 功能描述:- Bulk