Industrial field analog-to-digital converter ADI AD7606 and GX7606 depth of comparison and application analysis

In the field of electronic technology and industry, general high-performance analog-to-digital converter can meet the needs of most sensor equipment, and the analog-to-digital converter resolution and accuracy of the subtle differences in the collected signals are also different, this paper focuses on industrial applications in the field of the AD7606 and GX7606 two analog-to-digital converter performance comparison and application analysis.

1, resolution and accuracy comparison: AD7606 and GX7606 are 16-bit analog-to-digital converter, in the same level of accuracy, to meet most of the demand for high-precision analog signal conversion, applicable to the power system in the current, voltage measurement, as well as industrial automation control of data accuracy.

2, sampling rate comparison: AD7606 all channels can reach 200KSPS sampling rate, GX7606 all 8 channels of the throughput rate can also reach 200kSPS, the two can quickly sample analog signals for conversion, suitable for real-time requirements of the application of high demand.

3, input range comparison: AD7606 can handle ± 10V and ± 5V true bipolar input signals, regardless of the sampling frequency work, AD7606 analog input impedance are 1MΩ; GX7606 also supports ± 10V and ± 5V true bipolar input range, with 1MΩ analog input impedance, input clamping protection can withstand up to ± 30V voltage; both models can be Better adapt to the complex input signal environment.

4, built-in protection and filters: AD7606 devices are built-in analog input clamping protection, second-order anti-alias filters, sample-and-hold amplifiers, flexible digital filters, 2.5V reference voltage source, reference voltage buffer; GX7606 built-in analog input clamping protection for each channel, analog filters, programmable gain amplifiers, but also integrates the digital filters, 3.5ppm/°C The GX7606 also integrates a digital filter, a 3.5ppm/°C low-drift 2.5V precision reference voltage source, and a 4.5V reference voltage buffer. It can reduce the complexity and cost of external circuit design.

In summary, the AD7606 is comparable to the GX7606 in a number of aspects, and the GX7606 has a certain advantage in cost and supply, and it can be a good substitute for the AD7606 in many fields such as smart grid, electric vehicle BMS, multi-axis positioning system, servo motor control, etc.