Rainbow-electronics MAX5812 Manual de usuario descargar pdf (Pagina 12)

MAX5812

the digital input serially into the DAC. Schmitt-trigger

buffered inputs allow slow transition interfaces such as

optocouplers to interface directly to the device. The

digital inputs are compatible with CMOS logic levels.

Power-Supply Bypassing and

Ground Management

Careful PC board layout is important for optimal system

performance. Keep analog and digital signals separate

to reduce noise injection and digital feedthrough. Use a

ground plane to ensure that the ground return from

GND to the power supply ground is short and low

impedance. Bypass V

with a 0.1µF capacitor to

ground as close to the device as possible.

Chip Information

TRANSISTOR COUNT: 7172

PROCESS: BiCMOS

12-Bit Low-Power, 2-Wire, Serial

Voltage-Output DAC

12 ______________________________________________________________________________________

12-BIT

DAC

INPUT

MUX AND DAC

RESISTOR

NETWORK

POWER-DOWN

CIRCUITRY

SERIAL

INTERFACE

SDA ADD SCL GND

OUT

MAX5812

Functional Diagram

PART ADDRESS

MAX5812LEUT 0010 00X

MAX5812MEUT 0010 01X

MAX5812NEUT 0110 10X

MAX5812PEUT 1010 10X

Selector Guide

1 2 ... 7 8 9 10 11 12 13

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Rainbow-electronics MAX5812 Manual de usuario Pagina 12