AD4632-24BBCZ

AD4632-24BBCZ is a two-channel, simultaneous sampling, Easy Drive™, 500kSPS successive approximation register (SAR) analogue-to-digital converter (ADC). A low drift, internal precision reference buffer eases voltage reference sharing with other system circuitry. The AD4632-24 offers a typical dynamic range of 106dB 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 153dB. The wide differential input and common-mode ranges allow inputs to use the full voltage reference (±VREF) range without saturating, simplifying signal conditioning requirements and system calibration. The versatile Flexi-SPI serial peripheral interface (SPI) eases host processor and ADC integration. Applications include automatic test equipment, digital control loops, medical instrumentation, seismology, semiconductor manufacturing, scientific instrumentation.

• Accurate integrated reference buffer with 2μF bypass capacitor
• Integral nonlinearity (INL) error is ±0.1LSB typical at (TA = 25°C)
• Differential nonlinearity (DNL) error is ±0.5LSB typical at (TA = 25°C)
• Signal to noise ratio (SNR) is 105.7dB typical at (fIN = 1KHz, -0.5dBFS, TA = 25°C)
• Total harmonic distortion (THD) is -127dB typical at (fIN = 1KHz, -0.5dBFS, TA = 25°C)
• Noise spectral density (NSD) is -166dBFS/H typical at (TA = 25°C)
• Common-mode rejection ratio (CMRR) is 132dB typical at (input frequency (fIN) = 10KHz)
• 74MHz typical -3dB input bandwidth at (TA = 25°C)
• Power dissipation is 10mW typical at (both channels active, 500kSPS)
• Operating temperature range from -40°C to +125°C, 64-lead BGA package

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