8-Channel, 14-Bit, Serial Input, Voltage-Output DAC

The AD5362 / AD5363 contains 8, 16/14-bit DACs in a single, 56-lead, LFCSP or 52-lead LQFP package. It provides buffered voltage outputs with a span 4 times the reference voltage. The gain and offset of each DAC can be independently trimmed to remove errors. For even greater flexibility, the device is divided into two groups of 4 DACs, and the output range of each group can be independently adjusted by an offset DAC.

The AD5362 / AD5363 offers guaranteed operation over a wide supply range with VSS from −4.5 V to −16.5 V and VDD from +8 V to +16.5 V. The output amplifier headroom requirement is 1.4 V operating with a load current of 1 mA.

The AD5362 / AD5363 has a high-speed serial interface, which is compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards and can handle clock speeds of up to 50 MHz. All the outputs can be updated simultaneously by taking the LDAC input low. Each channel has a programmable gain and an offset adjust register.

Each DAC output is amplified and buffered on-chip with respect to an external SIGGND input. The DAC outputs can also be switched to SIGGND via the CLR pin.

APPLICATIONS

* Instrumentation

* Industrial Control System

* Level setting in automatic test equipment (ATE)

* Variable optical attenuators (VOA)

* Optical line cards

* 8-channel DAC in 52-lead LQFP and 56-lead LFCSP Packages

* Guaranteed monotonic to 16/14 bits

* Nominal output voltage range of −10 V to +10 V

* Multiple output spans available