The AD7124-4BCPZ is a 4-channel low noise low power 24-bit sigma-delta Analog-to-digital Converter (ADC) with PGA and reference. The AD7124-4 is completely integrated analog front end for high precision measurement applications. The device 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 AD7124-4 is that it gives the user 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. It establishes the highest degree of signal chain integration. The integrated channel sequencer allows several channels to be enabled simultaneously and the AD7124-4 sequentially converts on each enabled channel, simplifying communication with the device.
Rail-to-rail analog inputs for gains >1
Simultaneous 50/60Hz rejection at 2 5SPS
Diagnostic functions
Crosspoint multiplexed analog inputs
Programmable gain
Band gap reference with 15ppm/°C drift maximum
Matched programmable excitation currents
Internal clock oscillator
On-chip bias voltage generator
Low-side power switch
General-purpose outputs
Internal temperature sensor
Self and system calibration
Sensor burnout detection
Automatic channel sequencer per channel configuration
