GX2245 (Replaces LTC2245) for Harsh Imaging and Communication Applications

In wireless communication systems or imaging systems there are many quantities are analog, in order to achieve the measurement, operation and control of these analog quantities, the system needs a process of mutual conversion between analog and digital quantities, and this task is done by the ADC.

Highlighted here is the GXSC GX2245, which is a 14-bit 10MSPS, low-power 3V single-supply analog-to-digital converter that replaces ADI‘s LTC2245 for digitizing high-frequency, wide-dynamic-range signals. the GX2245 is ideally suited for demanding imaging and communications applications, with AC performance that includes a 73dB signal-to-noise ratio (SNR) and a Nyquist domain clutter-free Nyquist domain of 88dB. Its AC performance includes 73dB signal-to-noise ratio (SNR) and 88dB spurious-free dynamic range (SFDR) in the Nyquist domain.

DC performance includes ±1LSB INL (typical), ±0.5LSB DNL (typical), and full temperature range with no lost codes. Conversion noise is as low as 1.3 LSBRMS, and a single 3V supply supports low-power operation. Separate output power supplies support outputs driving 0.5V to 3.3V logic. Single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance operation with clock duty cycle over the full speed range.

 Key Performance:

● 3V analog supply power supply, 3V digital supply power supply

● Flexible input range: 1V P-P to 2V P-P

● 0.5V to 3.3V output power supply

● Low power consumption: 60mW (10MSPS)

● 10MHz sampling, 2.5MHz input: signal-to-noise ratio (SNR) 77dBFS, spurious-free dynamic range (SFDR): 82dB

● Differential non-linearity (DNL): ±0.25LSB (typical)

● Reference noise at input: 0.96LSB RMS

● On-chip reference voltage source and sample-and-hold circuitry

● QFN-32 package 5mm x 5mm

● Replaces ADI‘s LTC2245.