参数资料
型号: AD7846AP
厂商: Analog Devices Inc
文件页数: 4/24页
文件大小: 0K
描述: IC DAC 16BIT LC2MOS VOUT 28PLCC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1
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: -40°C ~ 85°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: 管件
输出数目和类型: 1 电压,单极;1 电压,双极
采样率(每秒): 143k
AD7846
Rev. G | Page 12 of 24
S1
VREF+
VREF–
DAC1
SEGMENT 1
SEGMENT 16
S3
S15
S17
S16
S14
S4
S2
DAC2
DAC3
12-BIT DAC
DB11 TO DB0
DB15 TO DB12
R
VOUT
RIN
A3
A2
A1
08
49
0-
0
21
Figure 21. Digital-to-Analog Conversion
OUTPUT STAGE
The output stage of the AD7846 is shown in Figure 22. It is capable
of driving a 2 kΩ/1000 pF load. It also has a resistor feedback
network that allows the user to configure it for gains of 1 or 2.
Table 6 shows the different output ranges that are possible.
An additional feature is that the output buffer is configured as a
track-and-hold amplifier. Although normally tracking its input,
this amplifier is placed in a hold mode for approximately 2.5 μs
after the leading edge of LDAC. This short state keeps the DAC
output at its previous voltage while the AD7846 is internally
changing to its new value. Thus, any glitches that occur in the
transition are not seen at the output. In systems where the
LDAC is tied permanently low, the deglitching is not in
operation.
and
show the outputs of the
AD7846 without and with the deglitcher.
C1
LDAC
VOUT
RIN
DAC3
ONE
SHOT
10k
0
849
0-
0
22
Figure 22. Output Stage
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相关代理商/技术参数
参数描述
AD7846APZ 功能描述:IC DAC 16BIT LC2MOS VOUT 28-PLCC 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:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散(最大):941mW 工作温度:0°C ~ 70°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:带卷 (TR) 输出数目和类型:8 电压,单极 采样率(每秒):*
AD7846AQ 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:IC,D/A CONVERTER,SINGLE,16-BIT,BICMOS,DIP,28PIN
AD7846BP 功能描述:IC DAC 16BIT LC2MOS VOUT 28PLCC RoHS:否 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:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散(最大):941mW 工作温度:0°C ~ 70°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:带卷 (TR) 输出数目和类型:8 电压,单极 采样率(每秒):*
AD7846BPZ 功能描述:IC DAC 16BIT LC2MOS VOUT 28PLCC 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
AD7846BQ 制造商:未知厂家 制造商全称:未知厂家 功能描述:16-Bit Digital-to-Analog Converter