Analog Devices AD5451 Product Info

The AD5450 / AD5451 / AD5452 / AD5453 are CMOS 8-/10-/12-/14-bit 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 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 use 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 (V_REF) 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 (R_FB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The AD5450 / AD5451 / AD5452 / AD5453 DACs are available in small 8-lead TSOT, and the AD5452 / AD5453 are also available in MSOP packages. The AD5453 also comes in 8-lead LFSCP.

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
• Qualified for automotive applications