ADI unveils low-power 18bit ADCs
Analog Devices Inc. (ADI) has uncloaked two 18bit ADCs that the company said deliver the industry's lowest power with excellent accuracy. The AD7989-1 and AD7989-5 PulSAR ADCs consume 400uW at 100kSPS. Power consumption is scaled depending on throughput speed to address thermal dissipation challenges in dense data acquisition system designs, noted the firm.
The ADCs feature ±1LSB and 98dB SNR at 1kHz for high dynamic range with exceptional accuracy and precision. Both devices are available in 100kSPS and 500kSPS throughput options, incorporate a low power, high precision, 18bit sampling ADC and a versatile serial interface port.
The AD7989-1 and AD7989-5 PulSAR ADCs are the latest additions to ADI's PulSAR portfolio that includes 18bit and 16bit A/D precision converters ranging from 100kSPS to 1MSPS. They provide a versatile pin-compatible upgrade/downgrade path for performance in a range of markets including battery-powered equipment, data acquisition systems and medical instrumentation.
The 18bit devices are available in 3 x 3mm 10-lead LFCSP or 10-lead MSOP packaging. The 100kSPS AD7989-1 can be had for $8.55 each per 1000 pieces, while the 500kSPS AD7989-5 can be purchased for $11.95 each per 1000 pieces. These ADCs can be designed into data acquisition circuits with ADI's high precision amplifiers and references such as the low-power, low-noise, low-distortion ADA4841-2 and ADR434.
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