Tool suite simplifies precision signal chain, says Analog Devices
Signal chains with customisable options and a suite of development tools have been curated by Analog Devices to help engineers optimise system performance for signal bandwidths of DC to approximately 10kHz in industrial and instrumentation applications.
The development tools range from simulation environments, such as LTspice, to design tools to examine filter performance or power management, to signal-chain-based evaluation systems.
The precision narrow bandwidth signal chains included with the platform feature precision and power management component selections that prioritise low frequency design requirements. According to Analog Devices, this delivers stability, and resolution. The robust, repeatable measurement and drive options are claimed to enable developers to design with confidence and tackle the most demanding precision instrumentation challenges in areas such as source measurement units (SMU), digital multimeters (DMM), and data acquisition systems.
Examples of precision narrow bandwidth signal chain options provided include those that prioritise low latency and stability for measurement and control or selections that optimise noise and stability for voltage drive. The stability and low latency signal chains lead to more reliable, faster end measurements ensuring closed loop system set ups can be reconfigured with minimal settling time and better test time efficiency. Tweaking for noise and stability creates voltage drive circuitry supporting highly accurate and extremely stable programmable voltage sources, added Analog Devices.
The portfolio available from Analog Devices is made up of the AD4630-24, a 24-bit, 2Msample per second, dual channel SAR ADC, the AD5791 20-bit, ±1 LSB INL, voltage output DAC, the LTC6373 36V, fully-differential, programmable-gain instrumentation amplifier with 25pA with input bias current and the LTC6655 low drift precision reference device in an eight-lead MSOP. All are immediately available.
The 24-bit, no-missing-codes ADC performance maximises resolution, delivering high accuracy for the complete signal chain, said Analog Devices with optimised gain setting and minimal settling time
Another key feature is the flexibility to optimise noise performance versus power at minimum latency. This allows the reuse of optimum layout and the circuitry can be used for multiple use cases with simple software updates
The measurement bandwidth from DC means stable and accurate closed loop measurements across a range of low frequencies, added Analog Devices.
Analog Devices offers a suite of analogue and mixed signal, power management, radio frequency (RF) and digital and sensor technologies. The company has a portfolio of more than 75,000 products for use in the industrial, communications, automotive and consumer markets. The company is headquartered in Wilmington, Massachusetts, USA.
