MAX522CSA+ Maxim Integrated Products, MAX522CSA+ Datasheet - Page 10
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MAX522CSA+
Manufacturer Part Number
MAX522CSA+
Description
IC DAC DUAL V-OUT SRL 8BIT 8SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX522CPA.pdf
(12 pages)
Specifications of MAX522CSA+
Settling Time
70µs
Number Of Bits
8
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Dac Outputs
2
Resolution
8 bit
Interface Type
Serial (SPI)
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Maximum Power Dissipation
471 mW
Minimum Operating Temperature
0 C
Supply Current
1.3 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
The digital inputs are compatible with CMOS logic.
Supply current increases slightly when toggling the
logic inputs through the transition zone between
(0.3)(V
The MAX522 serial interface is compatible with
Microwire, SPI, and QSPI. For SPI, clear the CPOL and
CPHA bits (CPOL = 0 and CPHA = 0). CPOL = 0 sets
the inactive clock state to zero and CPHA = 0 changes
data at the falling edge of SCLK. This setting allows SPI
to run at full clock speeds (0.5MHz). If a serial port is
not available on your µP, three bits of a parallel port can
be used to emulate a serial port by bit manipulation.
Minimize digital feedthrough at the voltage outputs by
operating the serial clock only when necessary.
Dual, 8-Bit, Voltage-Output
Serial DAC in 8-Pin SO Package
Figure 3. MAX522 Detailed Serial-Interface Timing Diagram
10
______________________________________________________________________________________
DD
SCLK
DIN
) and (0.7)(V
CS
DD
).
t
CSS
t
Microprocessor Interfacing
DS
t
DH
t
CH
Digital Inputs
t
CL
Table 4. Code Table
B7
1
1
1
0
0
0
Note:
1LSB
ANALOG OUTPUT
B6
1
0
0
1
0
0
DAC CONTENTS
B5
1
0
0
1
0
0
REF
B4
1
0
0
1
0
0
B3
t
CSH
1
0
0
1
0
0
2
B2
1
0
0
1
0
0
8
REF
B1
1
0
0
1
0
0
REF
t
B0
CSPWH
1
1
0
1
1
0
256
0V
D
REF
REF
REF
REF
REF
256
1
where D = Decimal
Value of Digital Input
ANALOG
OUTPUT
128
256
129
255
256
256
127
256
256
1
REF
2