AD7303BRZ

AD7303 is a +2.7V to +5.5V, serial input, dual voltage output 8-bit DAC. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. This device uses a versatile 3-wire serial interface that operates at clock rates up to 30MHz and is compatible with QSPI, SPI, microwire, and digital signal processor interface standards. The on-chip control register is used to address the relevant DAC, to power down the complete device or an individual DAC, to select internal or external references, and to provide a synchronous loading facility for simultaneous update of the DAC outputs with a software LDAC function. The low power consumption of this part makes it ideally suited to portable battery-operated equipment. Typical applications are portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.

• Internal and external reference capability, individual DAC power-down function
• Three-wire serial interface, QSPI™, SPI™ and Microwire™ compatible
• On-chip output buffer, rail-to-rail operation, on-chip control register
• High speed serial interface with clock rates up to 30MHz
• Relative accuracy is ±1LSB max (VDD=+2.7V to +5.5V, internal reference; RL=10KV to VDD and GND)
• Differential nonlinearity is ±1LSB maximum (guaranteed monotonic)
• Full-scale error is -0.5LSB typical (all ones loaded to DAC register)
• Slew rate is 7.5V/µs typ (VDD=+2.7V to +5.5V, internal reference; RL=10KV to VDD and GND)
• 8-lead SOIC package
• Temperature rating range from -40°C to +105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party