MAX5223 Datasheet | Maxim Integrated

Description The MAX5223 contains two 8-bit, buffered, voltage output digital-to-analog converters (DAC A and DAC B) in a small 8-pin SOT23 package. DAC outputs can source and sink 1m A to within 100m V of ground and VDD. The MAX5223 operates with a single +2.7V to +5.5V supply. The device uses a 3-wire serial interface, which operates at clock rates up to 25MHz and is patible with SPI™, QSPI™, and MICROWIRE™ interface standards. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown control. DAC registers can be loaded independently or in parallel at the positive edge of CS. The MAX5223’s ultra-low power consumption and tiny 8-pin SOT23 package make it ideal for portable and battery-powered applications. Supply current is a low 100µA and drops below 1µA in shutdown mode. In addition, the reference input is disconnected from the REF pin during shutdown, which reduces the system’s total power consumption. o Low Power Consumption 100µA Operating Current <1µA Shutdown Current o +2.7V to +5.5V Single-Supply Operation o Dual Buffered Voltage Output o Programmable Shutdown Mode o 25MHz, 3-Wire Serial Interface o SPI, QSPI, and MICROWIRE-patible Features o Tiny 8-Pin SOT23 Package (3mm ✕ 3mm) Ordering Information PART MAX5223EKA-T TEMP. RANGE -40°C to +85°C PIN-PACKAGE 8 SOT23 ________________________Applications Digital Gain and Offset Adjustment Programmable Current Source Programmable Voltage Source Power Amp Bias Control VCO Tuning 8 DIN SCLK 4 0.22µF Functional Diagram 0.1µF (OPTIONAL) 3 VDD 7 REF Pin Configuration TOP VIEW 16-BIT SHIFT REGISTER CONTROL (8) DATA (8) DAC LATCH A DAC A OUTA VOUTA 5 DAC LATCH B DAC B OUTB VOUTB 6 CS 1 GND 2 VDD 3 SCLK 4 DIN REF OUTB OUTA 7 6 5 CS 1 SOT23-8 2 GND SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________...