16-ch data acquisition IC; 14-bit, bipolar input, dual simultaneous sampling ADC

August 16, 2017 //By Graham Prophet
16-ch data acquisition IC; 14-bit, bipolar input, dual simultaneous sampling ADC
Analog Devices (ADI) has released the AD7617, a 14-bit, DAS (data acquisition system) that supports dual simultaneous sampling of 16 channels. The AD7617 operates from a single +5V supply and can accommodate ±10V, ±5V, and ±2.5V true bipolar input signals while sampling at throughput rates up to 1 Msample/sec per channel pair with 85 dB signal-to-noise ratio (SNR).

Higher SNR performance can be achieved with the on-chip oversampling mode (85.3 dB for an oversampling ratio (OSR) of 2). The input clamp protection circuitry can tolerate voltages up to ±21V. The AD7617 has 1 MΩ analogue 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 device contains analogue input clamp protection, a dual, 14-bit charge-redistribution successive approximation register (SAR) ADC, a flexible digital filter, a 2.5V reference and reference buffer, and high speed serial and parallel interfaces. The AD7617 is serial peripheral interface (SPI)/QSPI/DSP/MICROWIRE compatible. Use it, ADI suggests, in power line monitoring; protective relays; multiphase motor control; and in instrumentation and control systems.

 

Analog Devices;

 

Next page – feature listing…

 


Vous êtes certain ?

Si vous désactivez les cookies, vous ne pouvez plus naviguer sur le site.

Vous allez être rediriger vers Google.