ANALOG DEVICES AD7641BSTZ 模数转换器, 18 bit, 2 MSPS, 单, 2.37 V, 2.63 V, LQFP
GENERAL DESCRIPTION
The AD7641 is a 18-bit, 2 MSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates from a single 2.5 V power supply. The part contains a high-speed 18-
bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports. It features a very high sampling rate mode Warp and a fast mode Normal for asynchronous conversion rate applications. The AD7641 is hardware factory calibrated and comprehensively tested to ensure ac parameters
such as signal-to-noise ratio SNR and total harmonic distortion THD in addition to the more traditional dc parameters of gain, offset and linearity. Operation is specified from −40°C to +85°C.
FEATURES
Throughput
2 MSPS wideband warp and warp mode
1.5 MSPS normal mode
INL: ±2 LSB typical, ±3 LSB max; ±8 ppm of full scale
18-bit resolution with no missing codes
Dynamic range: 95.5 dB
SNR: 93.5 dB typical @ 20 kHz VREF= 2.5 V
THD: −112 dB typical @ 20 kHz VREF= 2.5 V
2.048 V internal reference: typ drift 10 ppm/°C; TEMP output
Differential input range: ±VREFVREFup to 2.5 V
No pipeline delay SAR architecture
Parallel 18-, 16-, or 8-bit bus and serial 5 V/3.3 V/2.5 V interface
SPI®/QSPI™/MICROWIRE™/DSP compatible
Single 2.5 V supply operation
Power dissipation
75 mW typical @ 2 MSPS with internal REF
2 μW in power-down mode
Pb-free, 48-lead LQFP and 48-lead LFCSP_VQ
Speed upgrade of the AD7674, AD7678, AD7679
APPLICATIONS
Medical instruments
High speed data acquisition/high dynamic data acquisition
Digital signal processing
Spectrum analysis
Instrumentation
Communications
ATE
数字逻辑电平 SAR
电源电压DC 2.37V min
供电电流 23.0 mA
电路数 1
通道数 1
针脚数 48
位数 18
耗散功率 75 mW
采样率 2 Msps
功耗 75 mW
分辨率Bits 18.0
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 92 mW
输入通道数 1
电源电压Max 2.63 V
电源电压Min 2.37 V
安装方式 Surface Mount
引脚数 48
封装 LQFP-48
长度 7 mm
宽度 7 mm
高度 1.4 mm
封装 LQFP-48
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tray
RoHS标准 RoHS Compliant
含铅标准 Contains Lead
REACH SVHC标准 No SVHC
军工级 No
REACH SVHC版本 2016/06/20
ECCN代码 EAR99
香港进出口证 NLR
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD7641BSTZ ADI 亚德诺 | 当前型号 | 当前型号 |
AD7679AST 亚德诺 | 完全替代 | AD7641BSTZ和AD7679AST的区别 |
AD7674AST 亚德诺 | 完全替代 | AD7641BSTZ和AD7674AST的区别 |
AD7678ASTZ 亚德诺 | 类似代替 | AD7641BSTZ和AD7678ASTZ的区别 |