AD7124-8BCPZ

he AD7124-8 is a low-power, low-noise, complete analog front-end for high-precision measurement applications. The device has a built-in low-noise 24-bit sigma-delta analog-to-digital converter (ADC) that can be configured to provide 8 differential inputs or 15 single-ended or pseudo-differential inputs.

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AD7124-8BCPZ Description

The AD7124-8 is a low-power, low-noise, complete analog front-end for high-precision measurement applications. The device has a built-in low-noise 24-bit sigma-delta analog-to-digital converter (ADC) that can be configured to provide 8 differential inputs or 15 single-ended or pseudo-differential inputs. The low on-chip noise level ensures that small signals can be fed directly into the ADC.One of the key advantages of the AD7124-8 is the flexibility of three integrated power modes available to the user. Power consumption, output data rate range, and root-mean-square noise can be customized with the selected power mode. The device also offers several filter options to ensure maximum flexibility for the user.

The AD7124-8 operates from a single 2.7 V to 3.6 V analog supply or a 1.8 V dual supply. The digital supply range is 1.65 V to 3.6 V. The device is rated from -40°C to +105°C. The AD7124-8 is available in a 32-pin LFCSP package.

AD7124-8BCPZ Features

♦ 3 power consumption modes.Root mean square (RMS) noise

Low power: 24 nV rms (1.17 SPS), gain=128 (255 µA typical)

Medium power: 20 nV rms (2.34 SPS), gain=128 (355 µA typical)

Full power: 23 nV rms (9.4 SPS), gain=128 (930 µA typical)

♦ Noise-free resolution up to 22 bits in all power modes (gain=1)

♦ Output Data Rate

Full power: 9.38 SPS to 19,200 SPS

Medium power: 2.34 SPS to 4,800 SPS

Low power: 1.17 SPS to 2400 SPS

♦ Rail-to-rail analog input (gain greater than 1)

♦ 50 Hz/60 Hz simultaneous rejection (25 SPS, single-cycle build-up)