MAX509ACWP+

The MAX509ACWP+ is a quad, serial 8bit digital to analogue (DAC) with rail to rail outputs in 20 pin WSOIC package. It has four separate reference inputs allowing DAC's full-scale range to be set independently. Device communicates with microprocessors through a synchronous, full-duplex, 3-wire interface. Data is sent MSB first and can be transmitted in one 4-bit and one 8bit packet or in one 12-bit word. If a 16-bit control word is used, the first four bits are ignored. A 4-wire interface adds a line for LDAC and allows asynchronous updating. The serial clock (SCLK) synchronizes the data transfer. Data is transmitted and received simultaneously. The interface is compatible with MICROWIRE and SPI/QSPI. All digital inputs and outputs are TTL/CMOS compatible. A buffered data output provides for readback or daisy-chaining of serial devices.

• Supply voltage range is 4.5V to 5.5V, -5.5V to 0V
• Operating temperature range from 0°C to +70°C
• Output buffer amplifier swing rail to rail
• Reference input range includes both supply rails
• Calibrated offset, gain and linearity (1LSB TUE)
• 10MHz serial interface, compatible with SPI, QSPI (CPOL = CPHA = 0) and MICROWIRE
• Double buffered registers for synchronous updating
• Serial data output for daisy-chaining
• Power-on reset clears serial interface and sets all registers to zero

Applications

Signal Processing

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