ADUC814BRU Просмотр технического описания (PDF) - Analog Devices
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ADUC814BRU Datasheet PDF : 72 Pages
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ADuC814
SPECIFICATIONS
Table 1. AVDD = DVDD = 2.7 V to 3.3 V or 4.5 V to 5.5 V, VREF = 2.5 V internal reference, XTAL1/XTAL2 = 32.768 kHz crystal. All
specifications TMIN to TMAX, unless otherwise specified1
Parameter
VDD = 5 V
VDD = 3 V Unit
Test Conditions
ADC CHANNEL SPECIFICATIONS
A GRADE
DC ACCURACY2,3
Resolution
Integral Nonlinearity
Differential Nonlinearity
fSAMPLE = 147 kHz
12
12
Bits
2
2
LSB max
2.5 V internal reference
1
1
LSB typ
2.5
2.5
LSB typ
1.0 V external reference
4
4
LSB max
2.5 V internal reference
2
2
LSB typ
5
CALIBRATED ENDPOINT ERRORS4, 5
5
LSB typ
1.0 V external reference
Offset Error
Offset Error Match
Gain Error
Gain Error Match
DYNAMIC PERFORMANCE6
Signal to Noise Ratio (SNR)7
5
5
LSB max
1
1
LSB typ
5
5
LSB max
1
1
LSB typ
fIN = 10 kHz sine wave
fSAMPLE = 147 kHz
62.5
62.5
dB typ
Total Harmonic Distortion (THD)
–65
–65
dB typ
Peak Harmonic or Spurious Noise
–65
Channel-to-Channel Crosstalk8
–80
–65
dB typ
–80
dB typ
B GRADE
DC ACCURACY2, 3
Resolution
12
12
Bits
fSAMPLE = 147 kHz
Integral Nonlinearity
1
1
LSB max
2.5 V internal reference
Differential Nonlinearity
Code Distribution
CALIBRATED ENDPOINT ERRORS4, 5
Offset Error
Offset Error Match
0.3
1.5
0.9
0.25
+1.5/–0.9
1
2
1
0.3
1.5
0.9
0.25
1.5/–0.9
1
3
1
LSB typ
LSB max
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
1.0 V external reference11
2.5 V internal reference
1.0 V external reference11
ADC input is a dc voltage
Gain Error
2
3
LSB max
Gain Error Match
1
DYNAMIC PERFORMANCE6
Signal to Noise Ratio (SNR)7
71
Total Harmonic Distortion (THD)
–85
Peak Harmonic or Spurious Noise
–85
Channel-to-Channel Crosstalk8
–80
1
LSB typ
71
dB typ
–85
dB typ
–85
dB typ
–80
dB typ
fIN = 10 kHz sine wave
fSAMPLE = 147 kHz
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
0 to VREF
1
32
0 to VREF
1
32
V
µA max
pF typ
Rev. A | Page 4 of 72
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