Analog Devices have recently introduced two 12-bit, 8-channel ADC/DAC/GPIO combination chips which are user-configurable in any functional combination. The AD5592R (SPI Interface) and AD5593R (I²C Interface) ADC/DAC/GPIO combination devices include a 400-Ksps ADC (analog-to-digital converter), 6-μsec settling time DAC (digital-to-analog converter), digital inputs/outputs, and a reference on a single chip.
The AD5592R and AD5593R devices can be user-configured in any combination of up to eight variations, allowing designers to use a single chip to complete multiple system monitoring and control functions. The combination of on-chip features allows system designers to reduce bill of materials costs and increase design portability and reuse with only minor software changes.
Both AD5592R and AD5593R devices have eight I/O pins (0 to 7) that can be independently configured as digital-to-analog converter (DAC) outputs, analog-to-digital converter (ADC) inputs, digital outputs, or digital inputs.
When an I/O pin is configured as an analog output, it is driven by a 12-bit DAC. The output range of the DAC is 0 V to VREF or 0 V to 2 × VREF. When an I/O pin is configured as an analog input, it is connected to a 12-bit ADC via an analog multiplexer. The input range of the ADC is 0 V to VREF or 0 V to 2 × VREF. The ADC has a total throughput rate of 400 kSPS. The I/O pins can also be configured as digital, general-purpose input or output (GPIO) pins. The state of the GPIO pins can be set or read back by accessing the GPIO write data register or the GPIO read configuration register, respectively, via SPI (AD5592R) or I²C interface (AD5593R) write or read operation.
The devices also include an integrated 2.5 V, 25 ppm/°C reference, which is turned off by default, and an integrated temperature indicator, which gives an indication of the die temperature. The temperature value is read back as part of an ADC read sequence.
AD5592R Functional Block Diagram
AD5593R Functional Block Diagram
The feature packed single-chip solution can save up to 85% of the space required by discrete implementations, 3 package options are available with the smallest Wafer Level Chip Scale Package (WLCSP) measuring just 2mm × 2mm. The level of integration and small package sizes make the devices suitable for high-density and space-constrained applications such as wired and wireless communications, building control or any general monitoring or control application where size and design flexibility are key requirements. The new devices not only simplify system architectures but enable greater system functionality because of the ability to add extra control and monitoring capabilities within a single device.
The AD5592R and AD5593R devices are supported by the EVAL-AD5592R-1SDZ and EVAL-AD5593RSDZ Evaluation boards which have been designed to help customers quickly prototype and reduce design time. The evaluation boards can be interfaced to the USB port of a PC via the EVAL-SDP-CB1Z SDP board and software is supplied with the evaluation board to allow the user to program the on-board devices.
Anglia are offering customers a FREE Evaluation board and samples for the AD5592R and AD5593R devices from Analog Devices, please fill in the form below to register your interest now.
Free samples are subject to availability.
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