MAX5584

The MAX5580MAX5585 provide two multifunctional, user-programmable, digital I/O ports. The externally selectable power-up states of the DAC outputs are either zero scale, midscale, or full scale. Software-selectable FAST and SLOW settling modes decrease settling time in FAST mode, or reduce supply current in SLOW mode. The MAX5580/MAX5581 are 12-bit DACs, the MAX5582/MAX5583 are 10-bit DACs, and the MAX5584/MAX5585 are 8-bit DACs. The MAX5580/ MAX5582/MAX5584 provide unity-gain-configured output buffers, while the MAX5581/MAX5583/MAX5585 provide force-sense-configured output buffers. The MAX5580-MAX5585 operate over the extended -40°C to +85°C temperature range and are available in a space-saving, 6.5mm x 4.4mm, 20-pin, TSSOP package. The MAX5580-MAX5585 quad, 12-/10-/8-bit, voltageoutput, digital-to-analog converters (DACs)offer buffered outputs and a 3s maximum settling time at the 12-bit level. The DACs operate from a +2.7V to +5.25V analog supply and a separate +1.8V to +5.25V digital supply. The 20MHz, 3-wire, serial interface is compatible with SPI?, QSPI?, MICROWIRE?, and digital signal processor (DSP)protocol applications. Multiple devices can share a common serial interface in directaccess or daisy-chained configuration.

The features of MAX5584 can be summarized as (1)3s (max)12-bit settling time to 0.5 LSB; (2)quad, 12-/10-/8-Bit Serial DACs in TSSOP Package; (3)±1 LSB (max)INL and DNL at 12-Bit Resolution; (4)two user-programmable digital I/O Ports; (5)single +2.7V to +5.25V analog supply; (6)+1.8V to AVDD digital supply; (7)20MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-/DSPcompatible serial interface; (8)glitch-free outputs power up to zero scale, midscale, or full scale controlled by PU pin; (9)unity-gain or force-sense-configured output buffers.

The absolute maximum ratings of MAX5584 are (1)AVDD to DVDD:±6V; (2)AGND to DGND: ±0.3V; (3)AVDD to AGND, DGND: -0.3V to +6V; (4)DVDD to AGND, DGND: -0.3V to +6V; (5)FB_, OUT_, REF to AGND:-0.3V to the lower of (AVDD + 0.3V)or +6V; (6)SCLK, DIN, CS, PU, DSP to DGND: -0.3V to the lower of (DVDD + 0.3V)or +6V; (7)UPIO1, UPIO2 to DGND: -0.3V to the lower of (DVDD + 0.3V)or +6V; (8)maximum current into any pin: ±50mA; (9)continuous power dissipation (TA = +70°C)20-Pin TSSOP (derate 21.7mW/°C above +70°C):1739mW; (10)operating temperature range: -40°C to +85°C; (11)storage temperature range: -65°C to +150°C; (12)junction temperature:+150°C; (13)lead temperature (soldering, 10s): +300°C.