Product Details
●The AD7608 is an 18-bit, 8 channel, simultaneous sampling Analog-to-Digital Data Acquisition system (DAS). The part contains analog input clamp protection, 2nd order anti-alias filter, track and hold amplifier, 18-bit charge redistribution successive approximation ADC, flexible digital filter, 2.5V reference and reference buffer and high speed serial and parallel interfaces.
●The AD7608 operates from a single 5V supply and can accommodate ± 10V and ±5V 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 ±16.5V. The AD7608 has 1 MΩ analog input impedance regardless of sampling frequency. The single supply operation, on chip filtering and high input impedance eliminates the need for driver op-amps and external bipolar supplies. The AD7608 antialias filter has a 3 dB cut off frequency of 22 kHz and provides 40 dB anti-alias rejection when sampling at 200ksps. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the 3 dB bandwidth.
●Applications
● Power line monitoring and protection systems
● Multiphase Motor Control
● Instrumentation and control systems
● Multi-axis positioning systems
● Data Acquisition Systems
●### Features and Benefits
● 8 Simultaneously Sampled Inputs
● True bipolar analog input ranges: ±10 V, ±5 V
● Single 5V Analog Supply, 2.3V to +5V VDRIVE
● 1MΩ Analog Input Impedance
● 2nd Order Anti-alias Analog Filter
● 7kV ESD rating on Analog input channels
● Analog Input Over Voltage Clamp Protection
● Over-sampling capability with digital filter,
●e.g. 96dB SNR at 50 ksps
● Fast throughput rate: 200 kSPS for all channels
● 90dB SNR at 200ksps
● Low power: 80 mW at 200 kSPS, 10 mW per channel
● On-chip accurate reference and reference buffer
● See data sheet for additional features
