DAC1282A

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DAC1282, DAC1282A SBAS490B – DECEMBER 2011 – REVISED MAY 2015 DAC1282 Low Distortion Digital-to-Analog Converter for Seismic 1 Features 1 Single-Chip Test Signal Generator Buffered Voltage Output High Performance: – THD: –125 dB (G = 1/1 to 1/8) – SNR: 120 dB (413 Hz BW, G = 1/1) Analog and Digital Gain Control Output Frequency: 0.488 Hz to 250 Hz Sine, Pulse, and DC Modes Digital Data Input Mode Low On-Resistance Signal Switch Sync Input Power-Down Mode Analog Supply: 5 V or ±2.5 V Digital Supply: 1.8 V to 3.3 V Power: 38 mW Package: TSSOP-24 Operating Range: –50°C to +125°C 2 Applications Energy Exploration Seismic Monitoring Systems High-Accuracy Instrumentation 3 Description The DAC1282 is a fully-integrated digital-to-analog converter (DAC) providing low distortion, digital synthesized voltage output suitable for testing of seismic equipment. The DAC1282 achieves very high performance in a small package with low power. Together, with the high-performance ADS1281 and ADS1282 analog-to-digital converters (ADCs), these devices create a measurement system that meets the exacting demands of seismic data acquisition equipment. The DAC1282 integrates a digital signal generator, a DAC, and an output amplifier providing sine wave, dc, and pulse output voltages. The output frequency is programmable from 0.5 Hz to 250 Hz and the magnitude is scaled by both ...