Analog Devices Inc. AD5758 Digital-to-Analog Converter (DAC)
Analog Devices AD5758 Digital-to-Analog Converter (DAC) is a single-channel, voltage and current output digital-to-analog converter (DAC). This DAC operates with a power supply range from -33V (minimum) on AVSS to +33V (maximum) on AVDD1 with a maximum operating voltage between the two rails of 60V. On-chip dynamic power control (DPC) minimizes package power dissipation. This is achieved by regulating the supply voltage (VDPC+) to the VIOUT output driver circuitry from 5V to 27V using a buck DC-to-DC converter, optimized for minimum on-chip power dissipation. The CHART pin enables a HART® signal to be coupled onto the current output.
Analog Devices AD5758 uses a versatile 4-wire serial peripheral interface (SPI) that operates at clock rates of up to 50MHz and is compatible with standard SPI, QSPI™, MICROWIRE™, DSP, and microcontroller interface standards. The interface also features an optional SPI cyclic redundancy check (CRC) and a watchdog timer (WDT). The AD5758 offers improved diagnostic features from its predecessors, such as output current monitoring and an integrated 12-bit diagnostic analog-to-digital converter (ADC). Additional robustness is provided by the inclusion of a fault protection switch on the VIOUT, +VSENSE, and -VSENSE pins.
Features
- 16-bit resolution and monotonicity
- DPC for thermal management
- Current/voltage output available on a single terminal
- 0mA to 20mA, 4mA to 20mA, 0mA to 24mA, ±20mA, ±24mA, -1mA to +22mA current output ratings
- 0V to 5V, 0V to 10V, ±5V, and ±10V voltage output ranges
- User-programmable offset and gain
- Advanced on-chip diagnostics, including a 12-bit ADC
- On-chip reference
- Robust architecture, including output fault protection
- -40°C to +115°C temperature range
- 32-lead, 5mm×5mm LFCSP package
Applications
- Process control
- Actuator control
- Channel isolated analog outputs
- Programmable logic controller (PLC) and distributed control systems (DCS) applications
- HART network connectivity
Videos
Functional Block Diagram
Associated Development Tool
Analog Devices Inc. DEMO-AD5758-AO8Z Demonstration Board
Demonstrates a system-level concept where the AD5758 and the ADP1031 are used together.
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