Replace AD7606, ADC GX7606 in Smart Grid Applications

The transformation of traditional power grid to smart grid requires power secondary equipment with stronger interface capability, control capability, protection capability, measurement capability, communication capability and data processing capability, so CPU/DSP and ADC are generally two key devices to be considered in the design of the system, and it is recommended that GXSC ADC GX7606 be used in the smart grid, which is an eight-channel, 16-bit ADC. The ADC is an eight-channel, 16-bit, 200kSPS ADC that can replace ADI‘s AD7606.

GX7606 is a synchronous sampling analog-to-digital converter, each channel has a built-in analog input clamping protection, analog filter, programmable gain amplifier. The chip also integrates a digital filter, a 3.5ppm/°C low-drift 2.5V precision reference voltage source and a 4.5V reference voltage buffer, and supports both parallel and serial interfaces.

Powered by a single 5V supply, the GX7606 offers throughput rates up to 200kSPS on all eight channels, supports ±10V and ±5V true bipolar input ranges, 1MΩ analog input impedance, and input clamping protection for voltages up to ±30V with an ESD rating of up to 8kV. For lower throughput applications, the GX7606‘s built-in oversampling modes and flexible digital filters can be used to improve noise performance. For applications requiring lower throughput rates, the GX7606‘s built-in oversampling mode and flexible digital filters can be used to improve noise performance.

GX7606 key features: 

- 16-bit, 200kSPS (all channels) input buffer with 1MΩ analog input impedance

- Operating temperature range -40°C to +85°C, 5V single analog supply

- VDRIVE supply voltage 2.3V to 5V, ±30V input clamping protection, 8kV ESD 

- 2nd order anti-alias analog filter, on-chip precision reference source and reference voltage source buffer

- True bipolar analog input range ±10V, ±5V, integrated digital filter oversampling function

- SNR 86dB (no oversampling) 95dB (64x oversampling)

- QFP-64 package 12mm x 12mm

GX7606 multi-channel integration can easily realize the measurement and monitoring of multiple IKVs (currents and voltages) in intelligent substation equipment, which makes the power line monitoring system able to monitor and manage all kinds of abnormal events occurring on the power grid in real time, realizing the synthesis of the functions of the intelligent substation, the digitalization of the system‘s protection, control, and measurement devices, and the intelligentization of the operation and management, and adapting to the development of the power market. GXSC can provide professional technical support and stable supply service.