The DAD7608 is an 18-bit, 8-channel simultaneous sampling data acquisition system (DAS). Each device integrates an analog input clamp protection circuit, a second-order anti-aliasing filter, a track-and-hold amplifier, an 18-bit charge-redistribution successive approximation ADC, a flexible digital filter, a 2.5 V reference voltage source, a reference buffer, and a high-speed serial interface.

The DAD7608 operates from a single 5 V power supply and can handle true bipolar input signals of ±10 V and ±5 V, while all channels can sample at throughput rates up to 200 kSPS. The input clamp protection circuitry can withstand voltages up to ±16.5 V. Regardless of the sampling rate, the DAD7608 features an analog input impedance of 1 MΩ. It operates from a single power supply and, with its on-chip filtering and high input impedance,  eliminates the need for a driver operational amplifier or an external bipolar power supply.

The DAD7608 features an anti-aliasing filter with a 3 dB cutoff frequency of 22 kHz. When operating at a sampling rate of 200 kSPS, it provides 40 dB of anti-aliasing attenuation. The flexible digital filter is pin-configurable and can improve the signal-to-noise ratio (SNR) while reducing the 3 dB bandwidth.

• Single power supply operation +2.5V~+5.5V.
• 8 simultaneously sampled inputs.
• True bipolar analog input ranges: ±10 V, ±5 V.
• Single 5 V analog supply and 2.3 V to 5 V VDRIVE.
• Analog input clamp protection.
• Input buffer with 1 MΩ analog input impedance.
• Second-order antialiasing analog filter.
• On-chip precision reference voltage and buffer with a temperature coefficient of 5 ppm/℃.
• 18-bit ADC with 200 kSPS on all channels.
• Oversampling capability with digital filter.
• Flexible serial interface.

• 7 kV ESD rating on analog input channels.

• ±0.5 LSB INL, ±0.5 LSB DNL.
• Low power: 130 mW, Standby mode: 35 mW.
• Temperature range: −40°C to +85°C/−40°C to +125°C.
• 64-lead LQFP package.

• Multiphase motor controls.
• Power line monitoring and protection systems. 
• Instrumentation and control systems. 
• Data acquisition systems (DAS).
• Multiaxis positioning systems.