ADUC812(1999) View Datasheet(PDF) - Analog Devices
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ADUC812 Datasheet PDF : 31 Pages
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ADuC812–SPECIFICATIONS1, 2
(AVDD = DVDD = +3.0 V or +5.0 V ؎ 10%, VREF = 2.5 V Internal Reference,
MCLKIN = 16.0 MHz, DAC VOUT Load to AGND; RL = 10 k⍀, CL = 100 pF. All specifications TA = TMIN to TMAX, unless otherwise noted.)
Parameter
ADC CHANNEL SPECIFICATIONS
DC ACCURACY3, 4
Resolution
Integral Nonlinearity
Differential Nonlinearity
ADuC812BS
VDD = 5 V
VDD = 3 V
12
12
± 1/2
± 1/2
± 1.5
± 1.5
± 1.5
±1
±1
CALIBRATED ENDPOINT ERRORS5, 6
Offset Error
±5
±1
±2
Offset Error Match
1
1
Gain Error
±6
±1
±2
Gain Error Match
1.5
1.5
USER SYSTEM CALIBRATION7
Offset Calibration Range
±5
±5
Gain Calibration Range
± 2.5
± 2.5
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)8
70
70
Total Harmonic Distortion (THD)
–78
–78
Peak Harmonic or Spurious Noise
–78
–78
Units
Test Conditions/Comments
Bits
LSB typ
LSB max
LSB typ
LSB typ
fSAMPLE = 100 kHz
fSAMPLE = 100 kHz
fSAMPLE = 200 kHz
fSAMPLE = 100 kHz. Guaranteed No
Missing Codes at 5 V
LSB max
LSB typ
LSB typ
LSB max
LSB typ
LSB typ
% of VREF typ
% of VREF typ
dB typ
dB typ
dB typ
fIN = 10 kHz Sine Wave
fSAMPLE = 100 kHz
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
TEMPERATURE SENSOR9
Voltage Output at +25°C
Voltage TC
0 to VREF
± 10
±1
20
600
–3.0
0 to VREF
+1
20
600
–3.0
Volts
µA max
µA typ
pF max
mV typ
mV/°C typ
Measured On-Chip via a Typical
± 0.5 LSB (610 µV) Accurate ADC
DAC CHANNEL SPECIFICATIONS
DC ACCURACY10
Resolution
12
12
Relative Accuracy
±3
±3
Differential Nonlinearity
± 0.5
±1
Offset Error
± 50
± 25
± 25
Full-Scale Error
± 25
± 10
± 10
Full-Scale Mismatch
± 0.5
± 0.5
Bits
LSB typ
LSB typ
mV max
mV typ
mV max
mV typ
% typ
Guaranteed 12-Bit Monotonic
% of Full-Scale on DAC1
ANALOG OUTPUTS
Voltage Range_0
Voltage Range_1
Resistive Load
Capacitive Load
Output Impedance
ISINK
0 to VREF
0 to VDD
10
100
0.5
50
0 to VREF
0 to VDD
10
100
0.5
50
V typ
V typ
kΩ typ
pF typ
Ω typ
µA typ
–2–
REV. 0
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