S9408 Datasheet | Summit Microelectronics

FEATURES - Four 8-Bit DACS - Differential Non-linearity - ±0.5LSB max - Integral Non-Linearity - ±1LSB max - Each DAC has Independent Reference Inputs - Output Buffer Amplifiers Swing Rail-to-Rail - Ground to VDD Reference Input Range - Each DAC’s Digital Input Data Maintained in Nonvolatile EEPROM - Power-On Reset Reloads Registers with Nonvolatile Data .. DAC values, OVERVIEW The S9408 DACPOT™ is a serial input, voltage output, quad 8-bit digital to analog converter. The S9408 operates from a single +2.7V to +5.5V supply. Internal precision buffers swing rail-to-rail and the reference input range includes both ground and the positive supply. The S9408 integrates four 8-bit DACs and their associated circuits which include an enhanced unity-gain operational amplifier output, an 8-bit data latch, an 8-bit nonvolatile register, and an industry-standard serial interface for reading and writing data to the DACs’ data latches and registers. The DACs are independently programmable and each has its own electrically isolated Vreference inputs. - Simple Serial Interface for Reading and Writing SPI™ and QSPI™ patible. - Fully operational from 2.7V to 5.5V - Low Power: <1m W @ 2.7V FUNCTIONAL BLOCK DIAGRAM Memory Control 8-Bit E2PROM DAC SECTION 0 2 VREFH0 Serial Data In 8-Bit Data Register 8-Bit DAC VOUT0 RDY/BSY# Programming Memory Controller 11 Serial Data Out 1 DAC SECTION 1 17 12 VREFL0 VREFH1 VOUT1 VREFL1 CS# DI CLK 6 7 5 Control Logic 20 00/REG# 9 DAC SECTION 2 GND 10 16 13 VREFH2 VOUT2 VREFL2 19 DAC SECTION 3 15 14 8 2015 T BD 2.0 VREFH3 VOUT3 VREFL3 DO © SUMMIT MICROELECTRONICS, Inc. 2000 - 300 Orchard City Drive, Suite 131 - Campbell, CA...