From ADI highly integrated analog converter 24 with the distal end of the core

Analog Devices, Inc. has launched two analog front-end (AFE) devices, integrated 24-bit sigma-delta converter kernel, with industry best low-power, low noise, and signal chain mens. Comprehensive performance. AD7124-4 and AD7124-8 AFE can directly connect all standard industrial signal sources and sensor inputs, while power requirements are 40% lower than the homologous devices. Its first-class power consumption is suitable for new AFE, which can be used in a series of industrial and instrumentation applications, including low-power portable devices. AD7124-4 (4 differentials and seven pseudo-differential inputs) and AD7124-8 AFE (8 differentials and 15 pseudo-differential inputs) have easy and flexibly supporting multiple types of sensor inputs, including resistance temperature detection Thermocouple, voltage / current input and current bridges, thereby shortening the design cycle while simplifying the design architecture. The new AFE has the highest system channel density in the same type of products, allows designers to narrow the PCB size, or save space in the same board area to expand monitoring and connection. The AD7124-4 and the AD7124-8 integrated signal chains, the 24-bit σ-Δ-type ADC, programmable gain amplifier (PGA), precision reference voltage source, reference voltage buffer, current source, temperature sensor And excitation source. The integrated diagnostic feature supports SIL compatibility, which reduces the need for discrete diagnostic components, saves valuable PCB area. The AD7124-4 and AD7124-8 provide three user-selectable power modes, allowing system designers to optimize throughput rates for the required noise performance. In the minimum power mode (255 μA), the converter has 21.7 bits no noise resolution when the low sample rate is low. User-selectable power mode allows programmable logic controllers, process controllers, transmission systems, and other industrial and instrumental designers to develop a single platform by accurately matching the power / performance requirements of each usage. AD7124-4 / AD7124-8 characteristics Some root noise (gain = 128) O 255 μA typical value (24 NV RMS, 1.17 Hz), low power mode O 355 μA typical value (20 NV RMS, 2.34 Hz), medium power mode O 930 μA typical value (23 NV RMS, 9.4 Hz), full power mode Output data rate: O 9.38 SPS to 19,200 SPS (full power mode) O 2.34 SPS to 4,800 SPS (medium power mode) o 1.17 SPS to 2,400 SPS (low power mode) Rail-to-rail mode input for gain 10 ppm / ° C integrated 2.5 V buffer reference voltage source (AD7124-4) Flexible and independent programmable digital filter Enhanced filter for synchronization 50 Hz and 60 Hz suppression Interior diagnosis Working temperature range: -40 ° C to + 105 ° C Related Reading: ADI launches 2-50 GHz distributed power amplifier ADI launches new four-channel protector and multiplexer Dabin Daging Group launched an ADI-based heart rate sensing SOC solution ADI launches SPDT switch to provide fast establishment time for test measurement applications ADI launches the latest fast prototype production kit AD-FMCDAQ2-EBZ