AD4032-24BBCZ

AD4032-24BBCZ is a 500kSPS successive approximation register (SAR), analogue-to-digital converter (ADC) with Easy Drive™. A low drift, internal precision reference buffer eases voltage reference sharing with other system circuitry. It offers a typical dynamic range of 109dB when using a 5V reference. The low-noise floor enables signal chains requiring less gain and lower power. A block averaging filter with a programmable decimation ratio can increase dynamic range up to 155.5dB. The wide differential input and common mode ranges allow inputs to use the full ±VREF range without saturating, simplifying signal conditioning requirements and system calibration. The improved settling of the easy drive analogue inputs broadens the selection of analogue front-end components compatible with the device. Applications include automatic test equipment, digital control loops, medical instrumentation, seismology, semiconductor manufacturing, and scientific instrumentation.

• Flexible external reference voltage range from 4.096V to 5V
• Accurate integrated reference buffer with 2μF bypass capacitor
• Echo clock mode simplifies use of digital isolator, compatible with 1.2V to 1.8V logic
• Extended sample resolution to 30bits, over range and synchronization bits
• Conversion time is 282ns typical at (VDD-5V = 5.4V, VDD-1.8V = 1.8V, VIO = 1.8V, REFIN = 5V)
• Acquisition phase is 1760ns typical at (VDD-5V = 5.4V, VDD-1.8V = 1.8V, VIO = 1.8V, REFIN = 5V)
• Throughput Rate is 500kSPS maximum at (VDD-5V = 5.4V, VDD-1.8V = 1.8V, VIO = 1.8V, REFIN = 5V)
• Integral nonlinearity error is ±0.1LSB typ at (VDD-5V = 5.4V, VDD-1.8V = 1.8V, VIO = 1.8V)
• Noise spectral density is -169dBFS/Hz typ at (VDD-5V = 5.4V, VDD-1.8V = 1.8V, VIO = 1.8V)
• Operating temperature range from -40°C to +125°C, 64-lead BGA package

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