The AD5428 is CMOS 8-bit, dual-channel, current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suited to battery-powered and other applications.
As a result of being manufacture on a CMOS submicron process, they offer excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidths of up to 10MHz.
These DACs utilize data readback, allowing the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeros and the DAC outputs are at zero scale.
The applied external reference input voltage (VREF) determines the full scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full scale voltage output when combined with an external I-to-V Precision Amplifier. The converter is available in small 20 lead TSSOP package.
- 8-bit current output DACs
- +2.5 V to +5.5 V Supply Operation
- 50 MHz Serial Interface
- 10 MHz Multiplying Bandwidth
- 2.5 MSPS update rate
- ±10 V reference input
- Low glitch energy < 2 nV-s
- Extended temperature range -40°C to +125°C
- 10-lead MSOP package
- Guaranteed Monotonic
- Four Quadrant Multiplication
- Power On reset with brownout detection
- Daisy Chain Mode
- Readback Function
- 0.4 µA typical power consumption
- Applications
- Portable battery-powered applications
- Waveform generators
- Instrumentation
- Programmable amplifiers and attenuators
- Digitally controlled calibration
- Programmable filters and oscillators
- Composite video
- Ultrasound
- Gain, offset, and voltage trimming
