AD7949BCPZ

AD7949 is an 8-channel, 14-bit, charge redistribution successive approximation register (SAR) analog to digital converter (ADC) that operates from a single power supply. The AD7949 contains all components for use in a multichannel, low power data acquisition system, including a true 14-bit SAR ADC with no missing codes; an 8-channel, low crosstalk multiplexer that is useful for configuring the inputs as single ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5V or 4.096V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order. It is suitable for use in multichannel system monitoring battery-powered equipment, medical instruments: ECG/EKG, mobile communications: GPS, power line monitoring, data acquisition, Seismic data acquisition systems, instrumentation, process control applications.

• 8ch multiplexer w/ choice of I/P: unipolar single-ended, differential (GND sense) and pseudobipolar
• INL/DNL: ±0.5/±0.25 LSB typical
• 85.5dB typ at fIN = 20KHz, VREF = 5V
• Total harmonic distortion is −100dB at fIN = 20KHz
• Internal temperature sensor (TEMP)
• Channel sequencer, selectable 1-pole filter, busy indicator
• No pipeline delay, SAR architecture
• Serial interface compatible with SPI, MICROWIRE, QSPI and DSP
• 20 lead LFCSP package
• Operating temperature range from -40 to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party