The AD5453 is CMOS 14-bit current output digital-to-analog converters, respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suited to several applications, including battery-powered applications.
As a result of manufacture on a CMOS submicron process, these DACs offer excellent 4-quadrant multiplication characteristics of up to 12 MHz.
These DACs utilize a double-buffered, 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP interface standards. Upon power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale.
The applied external reference input voltage (VREF) determines the full-scale output current. These parts can handle ±10 V inputs on the reference, despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
The AD5453 DACs is available in small 8-lead TSOT and the AD5453 is also available in MSOP packages. The AD5453 also comes in 8-lead LFSCP.
The EV-AD5443 is available for evaluating DAC performance.
- 12 MHz multiplying bandwidth
- INL of ±0.25 LSB @ 8-bit
- 8-lead TSOT and MSOP packages
- 2.5 V to 5.5 V supply operation
- Pin-compatible 8-/10-/12-/14-bit current output DACs
- ±10 V reference input
- 50 MHz serial interface
- 2.7 MSPS update rate
- Extended temperature range: –40°C to +125°C
- 4-quadrant multiplication
- Power-on reset with brownout detect
- <0.4 microA typical current consumption
- Guaranteed monotonic
- Qualified for automotive applications
- Applications:
- Portable battery-powered applications
- Waveform generators
- Analog processing
- Instrumentation applications
- Programmable amplifiers and attenuators
- Digitally controlled calibration
- Programmable filters and oscillators
- Composite video
- Ultrasound
- Gain, offset and voltage trimming
