MAX548ACPA+ Maxim Integrated Products, MAX548ACPA+ Datasheet - Page 11

• Manufacturer Part Number: MAX548ACPA+
• Description: IC DAC DUAL V-OUT 8BIT LP 8-DIP
• Manufacturer: Maxim Integrated Products

Specifications of MAX548ACPA+

• Settling Time: 4µs
• Number Of Bits: 8
• Data Interface: Serial
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Number Of Dac Outputs: 2
• Resolution: 8 bit
• Interface Type: Serial (SPI)
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: 0 C
• Supply Current: 0.55 mA
• Voltage Reference: External
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power Dissipation (max): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 3. MAX549A Serial-Interface Programming Commands
X = Don’t care
UB1
UNASSIGNED COMMAND
COMMANDS LOADING INPUT REGISTER(S) ONLY
COMMANDS UPDATING DAC REGISTER(S)
COMMANDS POWERING DOWN AND LOADING INPUT REGISTER(S) ONLY
COMMANDS POWERING DOWN AND UPDATING DAC REGISTER(S)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8-Bit Voltage-Output DACs in µMAX Package
UB2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
UB3
CONTROL BYTE
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Loaded First
______________________________________________________________________________________
+2.5V to +5.5V, Low-Power, Single/Dual,
C2
X
0
0
0
X
0
0
0
1
1
1
1
1
1
C1
0
0
0
0
1
1
1
1
0
0
0
1
1
1
C0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
A1
0
0
1
1
0
0
1
1
0
1
1
0
1
1
A0
0
1
0
1
0
1
0
1
1
0
1
1
0
1
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
Loaded Last
DATA BYTE
XXXXXXXX
XXXXXXXX
D7........D0
Unassigned command
Load DAC A input register. DAC registers unchanged.
Load DAC B input register. DAC registers unchanged.
Load both DAC input registers. DAC registers
unchanged.
Update both DAC registers with current contents of their
input registers. Both input registers unchanged.
Load DAC A input register and update both DAC
registers. DAC B input register unchanged.
Load DAC B input register and update both DAC
registers. DAC A input register unchanged.
Load both DAC input registers and update both DAC
registers.
Load DAC A input register and power down DAC A.
DAC B input register and both DAC registers unchanged.
Load DAC B input register and power down DAC B.
DAC A input register and both DAC registers unchanged.
Load both DAC input registers and power down both
DACs. Both DAC registers unchanged.
Load DAC A input register, power down DAC A, and
update both DAC registers. DAC B input register
unchanged.
Load DAC B input register, power down DAC B, and
update both DAC registers. DAC A input register
unchanged.
Load both DAC input registers, power down both DACs,
and update both DAC registers.
(Commands executed on CS’s rising edge)
COMMAND
11