MAX5594

The MAX5594 belongs to MAX5590MAX5595 family, the octal, 12/10/8-bit, voltage-output digital-to-analog converters (DACs)offer buffered outputs and a 3s maximum settling time at the 12-bit level. Multiple devices can share a common serial interface in direct-access or daisy-chained configuration. Software-selectable FAST and SLOW settling modes decrease settling time in FAST mode, or reduce supply current in SLOW mode. The MAX5590/MAX5591 are 12-bit DACs, the MAX5592/ MAX5593 are 10-bit DACs, and the MAX5594/ MAX5595 are 8-bit DACs. The MAX5590/MAX5592/ MAX5594 provide unity-gain-configured output buffers, while the MAX5591/MAX5593/MAX5595 provide forcesense-configured output buffers. The MAX5590MAX5595 are specified over the extended -40°C to +85°C temperature range, and are available in spacesaving 24-pin and 28-pin TSSOP packages. The MAX5590-MAX5595 provide two multifunction, user-programmable, digital I/O ports. The externally selectable power-up states of the DAC outputs are either zero scale, midscale, or full scale. 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.

The features of MAX5594 can be summarized as (1)octal, 12/10/8-bit serial DACs in TSSOP packages; (2)3 s (max)12-bit settling time to 1/2 LSB; (3)integral nonlinearity: 1 LSB (max)MAX5590/MAX5591 A-Grade (12-Bit)/ 1 LSB (max)MAX5592/MAX5593 (10-Bit)/ 1/2 LSB (max)MAX5594/MAX5595 (8-Bit); (4)guaranteed monotonic, ±1 LSB (max)DNL; (5)two user-programmable digital I/O ports; (6)single +2.7V to +5.25V analog supply; (7)+1.8V to AVDD digital supply; (8)20MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-/DSPcompatible serial interface; (9)glitch-free outputs power up to zero scale, midscale, or full scale controlled by PU pin; (10)unity-gain or force-sense-configured output buffers.

The absolute maximum ratings of MAX5594 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)24-Pin TSSOP (derate 13.9mW/°C above +70°C): 1111mW; (10)28-Pin TSSOP (derate 14mW/°C above +70°C): 1117mW; (11)operating temperature range: -40°C to +85°C; (12)storage temperature range: -65°C to +150°C; (13)maximum junction temperature: +150°C; (14)lead temperature (soldering, 10s): +300°C; (15)soldering temperature (reflow): +260°C.