AD7986BCPZ

AD7986 is a 18bit, 2 MSPS successive approximation analogue-to-digital converter (ADC). It contains a low power, high speed, 18bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, this samples the voltage difference between the IN+ and IN− pins. This pin voltage usually swing opposite phases between 0V and VREF. It features a very high sampling rate turbo mode (TURBO = high) and a reduced power normal mode (TURBO = low) for low power applications where the power is scaled with the throughput. Application includes battery-powered equipment, data acquisition systems, medical instruments, and seismic data acquisition systems.

• Maximum conversion rate is 2MSPS (AVDD=DVDD=2.5V, BVDD=5V, VIO=1.8V to 2.7V)
• Low power dissipation, minimum resolution is 18bits (AVDD=DVDD=2.5V, TA=-40 to +85°C)
• Typical power dissipation is 29mW (2 MSPS throughput, AVDD=DVDD=2.5V, TA=-40 to +85°C)
• Typical signal-to-noise ratio, SNR is 94.5dB (fIN =20KHz, VREF=4.096V, internal, TA =-40 to +85°C)
• Typical integral nonlinearity error is ±1LSB (AVDD=DVDD=2.5V, BVDD=5V, TA =-40 to +85°C)
• Ability to daisy-chain multiple ADCs with busy indicator
• Allows use of any input range, no pipeline delay
• Typical power supply sensitivity is ±4LSB (AVDD=2.5V ±5%, TA=−40°C to +85°C)
• Operating temperature rating range from -40 to +85°C
• 20-lead frame chip scale package [LFCSP]

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