ADFS7124-4BBCPZ

ADFS7124-4BBCPZ is a 4-channel, low power, low noise, completely integrated analogue front end for high precision measurement applications. The device contains a low noise, 24bit Σ-Δ analogue-to-digital converter (ADC), and can be configured to have four differential inputs or seven single-ended or pseudo differential inputs. The on-chip low gain stage ensures that signals of small amplitude can be interfaced directly to the ADC. One of the major advantages of the ADFS7124-4 is that it gives the flexibility to employ one of three integrated power modes. The current consumption, range of output data rates, and RMS noise can be tailored with the power mode selected. The device also offers a multitude of filter options, ensuring the highest degree of flexibility. Application includes temperature measurement, pressure measurement, industrial process control, instrumentation, smart transmitters.

• Functional safety approved to SC3 by TÜV Rheinland, file number 968/FSP 2188.01/23
• Three power modes, RMS noise (low power: 24nVrms at 1.17SPS, gain = 128 (255µA typical))
• Output data rate : low power mode range from 1.17 to 2400SPS (AVDD = 2.9V to 3.6V)
• Up to 22 noise free bits in all power modes (gain = 1)
• Rail-to-rail analogue inputs for gains <gt/> 1
• Simultaneous 50Hz/60Hz rejection at 25 SPS (single cycle settling)
• Diagnostic functions (which aid safe integrity level (SIL) certification)
• Crosspoint multiplexed analogue inputs, 4 differential/7 pseudodifferential inputs
• Programmable gain (1 to 128), band gap reference with 15ppm/°C drift max (TA = -40°C to 125°C, 70µA)
• 32 lead LFCSP package, operating temperature range from -40°C to +125°C

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