MAX550A データシートの表示（PDF） - Maxim Integrated

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MAX550A

+2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in µMAX Package

Maxim Integrated 

+2.5V to +5.5V, Low-Power, Single/Dual,

8-Bit Voltage-Output DACs in µMAX Package

_____________________________Typical Operating Characteristics (continued)

(VDD = VREF = 2.5V, RL = 1MΩ, CL = 15pF, TA = +25°C, unless otherwise noted.)

OUTPUT GLITCH FILTERING

CODE = 00 hex

SETTLING TIME (RISING)

DAC CODE 00 hex to FF hex

5µs/div

OUT, 50mV/div, CL = 0pF

OUT, 50mV/div, CL = 100pF

OUT, 50mV/div, CL = 220pF

OUT, 50mV/div, CL = 1000pF

CS, 5V/div

2µs/div

OUT, 1V/div

CS, 5V/div

______________________________________________________________Pin Description

MAX548A

1

2

—

PIN

MAX549A

1

2

—

MAX550A

1

—

2

3

3

3

4

4

4

5

5

5

6

—

6

7

6

—

—

7

7

8

8

8

NAME

GND

OUTA

OUT

CS

DIN

SCLK

LDAC

OUTB

REF

VDD

FUNCTION

Ground

DAC A Output Voltage

DAC Output Voltage

Chip-Select Input. A logic low on CS enables serial data to be

clocked into the input shift register. Programming commands are

executed at CS’s rising edge.

Serial-Data Input. Data is clocked into the 16-bit input shift register on

SCLK’s rising edge.

Serial-Clock Input. Data is clocked in on SCLK’s rising edge.

Load DAC Input. After CS goes high and if programmed by the

control word, a falling edge on LDAC updates the DAC latch(es).

Connect LDAC to VDD if unused.

DAC B Output Voltage

External Reference Voltage Input for DAC(s)

Positive Power Supply (+2.5V to +5.5V)

_______________________________________________________________________________________ 5

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