ANALOG DEVICES AD7821KPZ 模数转换器, 8 bit, 100 kSPS, 单, 5 V, PLCC
Product Details
The AD7821 is a high-speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. It offers a conversion time of 660 ns vs. 1.36 µs for the AD7820 and 100 kHz signal bandwidth vs. 6.4 kHz. The sampling instant is better defined and occurs on the falling edge of WR of RD. The provision for a VSS pin Pin 19 allows the part to operate from ±5 V supplies and to digitize bipolar input signals. Alternatively, for unipolar inputs, the VSS pin can be grounded and the AD7821 will operate from a single +5 V supply, like the AD7820.
The AD7821 has a built-in track-and-hold function capable of digitizing full-scale signals up to 100 kHz max. It also uses a half-flash conversion technique that eliminates the need to generate a CLK signal for the ADC.
The AD7821 is designed with standard microprocessor control signals CS, RD, WR, RDY, INT and latched, three-state data outputs capable of interfacing to high-speed data buses. An overflow output OFL is also provided for cascading devices to achieve higher resolution.
The AD7821 is fabricated in Linear-Compatible CMOS LC2MOS, an advanced, mixed technology process combining precision bipolar circuits with low-power CMOS logic. The part features a low power dissipation of 50 mW.
### Features and Benefits
Surface-Mount Packages
电路数 1
通道数 1
针脚数 20
位数 8
耗散功率 50 mW
采样率 1 Msps
功耗 50 mW
分辨率Bits 8.0
输入电容 55.0 pF
输入阻抗 1.00 Ω
模数转换数ADC 1
输入数 1
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 100.5 mW
输入通道数 1
电源电压Max 5 V
安装方式 Surface Mount
引脚数 20
封装 PLCC-20
长度 9.04 mm
宽度 9.04 mm
高度 3.68 mm
封装 PLCC-20
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Contains Lead
REACH SVHC标准 No SVHC
军工级 Yes
REACH SVHC版本 2016/06/20
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD7821KPZ ADI 亚德诺 | 当前型号 | 当前型号 |
AD7821KPZ-REEL 亚德诺 | 完全替代 | AD7821KPZ和AD7821KPZ-REEL的区别 |
AD7821KP 亚德诺 | 完全替代 | AD7821KPZ和AD7821KP的区别 |
AD7821KP-REEL 亚德诺 | 完全替代 | AD7821KPZ和AD7821KP-REEL的区别 |