AD7982BRMZRL7

AD7982 is an 18bit, successive approximation ADC that operates from a single power supply, VDD. The AD7982 contains a low power, high speed, 18bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7982 samples the voltage difference between the IN+ and IN- pins. The voltages on these pins usually swing in opposite phases between 0V and V REF. The reference voltage, VREF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput. The serial peripheral interface (SPI) compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. Typical application includes battery-powered equipment, data acquisition systems, medical instruments and seismic data acquisition systems.

• 18bit resolution with no missing codes
• Low power dissipation (4mW at 1MSPS (VDD only) 7mW at 1MSPS (total) 70μW at 10KSPS)
• INL of ±1LSB typ, +2LSB max and dynamic range of 99dB typical, throughput of 1MSPS
• True differential analogue input range of ±VREF (0V to VREF with VREF between 2.5V to 5V)
• Allows use of any input range and no pipeline delay
• Single-supply 2.5V operation with 1.8V, 2.5V, 3V and 5V logic interface
• Proprietary serial interface SPI-/QSPI™/ MICROWIRE™-/DSP-compatible1
• Ability to daisy-chain multiple ADCs and busy indicator
• 10 lead MSOP package
• Operating temperature range from -40°C 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