MAX5820 查看數據表（PDF） - Maxim Integrated
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MAX5820 Datasheet PDF : 13 Pages
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Dual, 8-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
ABSOLUTE MAXIMUM RATINGS
VDD, SCL, SDA to GND ............................................-0.3V to +6V
OUT_, REF, ADD to GND..............................-0.3V to VDD + 0.3V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 4.5mW above +70°C) ...................362mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +5.5V, GND = 0, VREF = VDD, RL = 5kΩ, CL = 200pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are
at VDD = +5V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
STATIC ACCURACY (NOTE 2)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Zero-Code Error
Zero-Code Error Tempco
N
INL
DNL
ZCE
(Note 3)
Guaranteed monotonic (Note 2)
Code = 00 hex, VDD = 2.7V
8
Bits
±0.5
±1
LSB
±0.5 LSB
6
40
mV
2.3
ppm/oC
Gain Error
Gain-Error Tempco
GE Code = FF hex
-0.8
-3 %FSR
0.26
ppm/oC
Power-Supply Rejection Ratio
DC Crosstalk
PSRR Code = FF hex, VDD = 4.5V to 5.5V
58.8
dB
30
µV
REFERENCE INPUT
Reference Input Voltage Range
Reference Input Impedance
Reference Current
VREF
Power-down mode
0
VDD
V
65
90
kΩ
0.3
1
µA
DAC OUTPUT
Output Voltage Range
DC Output Impedance
Short-Circuit Current
Wake-Up Time
No load (Note 4)
Code = 80 hex
VDD = 5V, VOUT = full scale (short to GND)
VDD = 3V, VOUT = full scale (short to GND)
VDD = 5V
VDD = 3V
0
VDD
V
1.2
Ω
42.2
mA
15.1
8
µs
8
DAC Output Leakage Current
Power-down mode = high impedance,
VDD = 5.5V, VOUT_ = VDD to GND
±0.1
±1
µA
DIGITAL INPUTS (SCL, SDA)
Input High Voltage
VIH
0.7 x
V
VDD
Input Low Voltage
VIL
0.3 x
V
VDD
2 _______________________________________________________________________________________
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