MAX548 Maxim, MAX548 Datasheet - Page 5

• Manufacturer Part Number: MAX548
• Description: +2.5V to +5.5V / Low-Power / Single/Dual / 8-Bit Voltage-Output DACs in MAX Package
• Manufacturer: Maxim

_____________________________Typical Operating Characteristics (continued)
(V
______________________________________________________________Pin Description
MAX548A
DD
CODE = 00 hex
= V
—
—
1
2
3
4
5
6
7
8
8-Bit Voltage-Output DACs in µMAX Package
REF
OUTPUT GLITCH FILTERING
= 2.5V, R
MAX549A
PIN
_______________________________________________________________________________________
—
—
5 s/div
1
2
3
4
5
6
7
8
+2.5V to +5.5V, Low-Power, Single/Dual,
L
= 1MΩ, C
MAX550A
L
= 15pF, T
—
—
1
2
3
4
5
6
7
8
OUT, 50mV/div, C
OUT, 50mV/div, C
OUT, 50mV/div, C
OUT, 50mV/div, C
CS, 5V/div
A
= +25°C, unless otherwise noted.)
NAME
OUTA
OUTB
LDAC
SCLK
GND
OUT
DIN
REF
V
CS
DD
L
L
L
L
= 0pF
= 100pF
= 220pF
= 1000pF
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 V
DAC B Output Voltage
External Reference Voltage Input for DAC(s)
Positive Power Supply (+2.5V to +5.5V)
DD
DAC CODE 00 hex to FF hex
if unused.
SETTLING TIME (RISING)
FUNCTION
2 s/div
OUT, 1V/div
CS, 5V/div
5