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MAX5550
Dual, 10-Bit, Programmable, 30mA
High-Output-Current DAC
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD to GND .............................................................-0.3V to +6V
OUTA, OUTB to GND .................................-0.3V to (VDD + 0.3V)
REFIN, CS/AO, DOUT/AI, SPI/I2C, FSADJA,
FSADJB to GND ......................................-0.3V to (VDD + 0.3V)
SCLK/SCL, DIN/SDA ................................................-0.3V to +6V
Continuous Power Dissipation (TA = +85°C)
16-Pin Thin QFN (derate 17.5mW/°C above +70°C) ..1398.6mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +5.25V, GND = 0, VREFIN = +1.25V, internal reference, RFSADJ_ = 20k
; compliance voltage = (VDD - 0.6V),
VSCLK/SCL = 0, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +3.0V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE—ANALOG SECTION
Resolution
10
Bits
Integral Nonlinearity
INL
IOUT_ = 1mA to 30mA (Note 2)
±2
LSB
Differential Nonlinearity
DNL
Guaranteed monotonic
±1
LSB
Offset
IOS
-50
-16
LSB
Zero-Scale Error
IOUT_ = 1mA to 30mA, code = 0x000
1
A
Full-Scale Error
IOUT_ = 1mA to 30mA, code = 0x3FF,
includes offset
-16
LSB
REFERENCE
Internal Reference Range
1.21
1.25
1.29
V
Internal Reference Tempco
30
ppm/°C
External Reference Range
0.5
1.5
V
External Reference Input Current
108
225
A
DAC OUTPUTS
Full-Scale Current
(Note 3)
1
30
mA
Output Current Leakage in
Shutdown
±1
A
Output Capacitance
10
pF
IOUT_ = 30mA
1
TA = +25°C
0.55
Current Source Dropout Voltage
(VDD - VOUT_)
IOUT_ = 20mA
TA = -40°C to +85°C
0.6
V
Output Impedance at Full-Scale
Current
100
k
Capacitive Load to Ground
CLOAD
10
nF
Series Inductive Load
LLOAD
100
nH
Maximum FSADJ_ Capacitive
Load
CFSADJ_
75
pF
DYNAMIC PERFORMANCE
Settling Time
tS
CLOAD = 24pF, LLOAD = 27nH (Note 4)
30
s
Digital Feedthrough
2
nVs
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