参数资料
型号: AD7608BSTZ-RL
厂商: Analog Devices Inc
文件页数: 23/32页
文件大小: 0K
描述: IC DAS W/ADC 18BIT 8CH 64LQFP
标准包装: 1,500
类型: 数据采集系统(DAS),ADC
分辨率(位): 18 b
采样率(每秒): 200k
数据接口: DSP,MICROWIRE?,并联,QSPI?,串行,SPI?
电压电源: 模拟和数字
电源电压: 2.3 V ~ 5.25 V,4.75 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 带卷 (TR)
Data Sheet
AD7608
Rev. A | Page 3 of 32
GENERAL DESCRIPTION
The AD7608 is an 18-bit, 8-channel simultaneous sampling,
analog-to-digital data acquisition system (DAS). The part contains
analog input clamp protection, a second-order antialiasing filter,
a track-and-hold amplifier, an 18-bit charge redistribution
successive approximation analog-to-digital converter (ADC), a
flexible digital filter, a 2.5 V reference and reference buffer, and
high speed serial and parallel interfaces.
The AD7608 operates from a single 5 V supply and can
accommodate ±10 V and ±5 V true bipolar input signals while
sampling at throughput rates up to 200 kSPS for all channels.
The input clamp protection circuitry can tolerate voltages up
to ±16.5 V. The AD7608 has 1 M analog input impedance
regardless of sampling frequency. The single supply operation,
on-chip filtering, and high input impedance eliminate the need
for driver op amps and external bipolar supplies. The AD7608
antialiasing filter has a 3 dB cutoff frequency of 22 kHz and
provides 40 dB antialias rejection when sampling at 200 kSPS.
The flexible digital filter is pin driven, yields improvements in
SNR, and reduces the 3 dB bandwidth.
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