MAX5307EUE+【PDF 2/15 页】IC DAC 12BIT OCT LP SER 16-TSSOP

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MAX5306/MAX5307

nected to ground through a 1k

Ω or 100kΩ (default)

resistor for each DAC. The third shutdown (shutdown 1)

command leaves the DACs outputs high impedance.

Table 2 lists the three shutdown modes of operation as

well as the power-up command.

Serial-Data Output (DOUT)

The DOUT (MAX5306) follows DIN with a 16 clock

cycle delay. The DOUT is capable of driving 20pF load

with a 50ns (max) delay from the falling edge of SCLK.

DOUT is primarily used for daisy-chaining multiple

devices. Optionally, DOUT can be used to monitor the

serial interface for valid communications by connecting

DOUT to a microprocessor input.

Low-Power, Low-Glitch, Octal 12-Bit Voltage-

Output DACs with Serial Interface

______________________________________________________________________________________

CONTROL BITS

DATA BITS

DAC

D03 D02 D01 D00

DESC.

FUNCTION

1111

Power-

Power-Up individual DAC

buffers indicated by data in

DAC1 through DAC8. A one

indicates the DAC output is

active. A zero does not affect

the DACs present state.

1111

Shut-

down 1

Shutdown individual DAC

buffers indicated by data in

DAC1 through DAC8. A one

indicates the DAC output is

high-impedance. A zero does

not affect the DACs present

state.

1111

Shut-

down 2

Shutdown individual DAC

buffers indicated by data in

DAC1 through DAC8. A one

indicates the DAC is shutdown

and the output is connected to

GND through a 1k

Ω resistor. A

zero does not affect the DACs

present state.

1111

Shut-

down 3

Shutdown individual DAC

buffers indicated by data in

DAC1 through DAC8. A one

indicates the DAC is shutdown

and the output is connected to

GND through a 100k

Ω resistor.

A zero does not affect the

DACs present state.

Table 2. Serial Interface Power-up and Power-down Commands

X = Don’t Care

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