GX7606 Compatible with AD7606 in Portable Vibration Data Acquisition Systems

In order to achieve more flexible vibration detection of rotating mechanical power devices in industrial production, a handheld portable vibration data acquisition system is essential. The program through the microcontroller and SOC as the core of the system‘s main control, through the digital-to-analog conversion module, signal conditioning circuit and network communication circuit design, to achieve the four-channel vibration signals with 16-bit precision 64 times the frequency of the synchronous acquisition of the collected vibration data to achieve the collected vibration data for the time domain and frequency domain analysis.

This paper introduces the GX7606 to replace the AD7606 for vibration data acquisition, due to the use of the GXSC analog-to-digital converter, so that the design of the program cost is low, and the data acquisition system is adaptable, portable, and has certain localization characteristics.

GX7606 for the 16-bit synchronous sampling chip, each chip has eight acquisition channels, can fully meet the system requirements for sampling, it has a flexible digital filter, 2.5V reference voltage source, and high-speed parallel and serial interfaces, using a 5V single power supply, no longer need a positive and negative power supply and support for true bipolar signal input. All channels can be sampled at rates up to 200kSPS.

The GX7606 has several significant advantages:

1, each channel is built-in analog input clamping protection, analog filters, programmable gain amplifier

2, with 1MQ analog input impedance input buffer

3, operating temperature range: -40C to +85 ° C, 5V single analog supply

4, VDRIVE supply voltage: 2.3V to 5V +30V input register protection, 8KV ESD

5, 2nd order anti-alias analog filters

6, on-chip precision reference source and reference voltage source buffer

7, true bipolar analog input range: ± 10V, ± 5V

8, integrated digital filter oversampling function

9, SNR 86dB (no oversampling) 95dB (64 times oversampling)

10, QFP-64 package 12mmx12mm