MX7837 Ver la hoja de datos (PDF) - Maxim Integrated
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MX7837 Datasheet PDF : 12 Pages
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Complete, Dual, 12-Bit
Multiplying DACs
ABSOLUTE MAXIMUM RATINGS
VDD to DGND, AGNDA, AGNDB ............................-0.3V to +17V
VSS to DGND, AGNDA, AGNDB (Note 1) ..............+0.3V to -17V
VREFA, VREFB to AGNDA, AGNDB .. (VSS - 0.3V) to (VDD + 0.3V)
AGNDA, AGNDB to DGND.........................-0.3V to (VDD + 0.3V)
VOUTA, VOUTB to AGNDA, AGNDB .....(VSS - 0.3V) to (VDD + 0.3V)
RFBA, RFBB to AGNDA, AGNDB .......(VSS - 0.3V) to (VDD + 0.3V)
Digital Inputs to DGND ...............................-0.3V to (VDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
Narrow Plastic DIP (derate 13.33mW/°C above +70°C)....1067mW
SO (derate 11.76mW/°C above +70°C) .........................941mW
Narrow CERDIP (derate 12.50mW/°C above +70°C) ..1000mW
Operating Temperature Ranges:
MX78_7J_/K_ ........................................................0°C to +70°C
MX78_7A_/B_ .................................................. -40°C to +85°C
MX78_7SQ/TQ ............................................... -55°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: If VSS is open-circuited with VDD and either AGND applied, the VSS pin will float positive exceeding the Absolute Maximum Ratings.
If this possibility exists, a Schottky diode connected between VSS and GND ensures the maximum ratings will be observed.
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 = 11.4V to 16.5V, VSS = -11.4V to -16.5V, AGNDA = AGNDB = DGND = 0V, VREFA = VREFB = +10V, RL = 2kΩ, CL = 100pF,
VOUT connected to RFB (MX7837), TA = TMIN to TMAX, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
STATIC PERFORMANCE (Note 3)
Resolution
N
12
Bits
Relative Accuracy
MX78_7J/A/S
INL
MX78_7K/B/T
±1
LSB
±1/2
Differential Nonlinearity
DNL Guaranteed monotonic
±1
LSB
Zero-Code Offset Error
Loaded with all 0s,
tempco =
±5µV/°C typ
TA = +25°C
TA = TMIN to TMAX
MX78_7J/A
MX78_7K/B
MX78_7S/T
±2
±4
mV
±3
±5
Gain Error
Loaded with all 1s, TA = +25°C
tempco = ±2ppm
of FSR/°C typ TA = TMIN to TMAX
MX78_7J/A/S
MX78_7K/B/T
MX78_7J/A/S
MX78_7K/B/T
±5
±2
LSB
±7
±4
REFERENCE INPUTS
VREF Input Resistance
VREFA, VREFB Resistance
Matching
8
10
13
kΩ
±0.5
±3
%
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Current
Input Capacitance (Note 4)
VINH
VINL
Digital inputs at 0V and VDD
2.4
V
0.8
±1
µA
8
pF
ANALOG OUTPUTS
DC Output Impedance
0.2
Ω
Short-Circuit Current
VOUT connected to AGND
15
mA
2 _______________________________________________________________________________________
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