AD5362:  8-Channel, 16-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 V_SS from -4.5 V to -16.5 V and V_DD 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