AD3530R: 8-channel, 16-bit voltage output DACs, on-chip reference, SPI
The AD3530/AD3530R are low power, 8-channel, 16-bit, buffered voltage output, digital-to-analog converters (DACs) that include software-programmable gain controls that result in full-scale output spans of 2.5V or 5V for reference voltages of 2.5V.
The AD3530/AD3530R operate from single, 2.7V to 5.5V supply ranges and are guaranteed monotonic by design. The AD3530R also offers a 2.5V, 5ppm/°C internal reference that is disabled by default.
The devices include integrated multiplexers that allow monitoring of output voltages, currents, and internal die temperature. The AD3530/AD3530R are available in 2.1mm × 2.2mm, 25-ball WLCSP packages. The devices incorporate power-on reset (POR) circuits that ensure that the DACs output power up to and present at 32kΩ to ground until a valid write is executed. The DACs also contain power-down modes that reduce the current consumption down to 670μA, typical.
The serial peripheral interface (SPI) and MICROWIRE®-compatible, 4-wire serial interface operates on logic levels as low as 1.08V up to 1.98V and clock rates up to 50MHz.
Key Features and Benefits
16-bit resolution, ±3 LSB16 INL, ±1 LSB16 DNL
TUE: ±0.22% of FSR maximum
Offset error: ±1.6mV maximum
Gain error: ±0.26% of FSR maximum
Guaranteed sourcing current of 50mA
Ultra-low headroom: 25mV at 20mA load
2.5V internal voltage reference, 5ppm/°C, typical
62nV/√Hz noise spectral density (external reference)
115nV/√Hz noise spectral density (internal reference)
Output voltage, current, and die temperature monitors
50MHz SPI write and read
2.7V to 5.5V power supply range
1.2V or 1.8V compatible digital interface
Operating temperature range: −40°C to +125°C
Small package: 2.1mm × 2.2mm, 25-ball WLCSP
Applications
Optical transceivers
Test and measurement
Industrial automation
Data acquisition systems
Evaluation Board
The AD3530R can be evaluated with the EVAL-AD3530R.
Block Diagrams and Tables
Étiquettes d'article
