EVAL-ADUC831QSZ Datasheet, PDF (3/76 Pages) Analog Devices – MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU

ADuC831
SPECIFICATIONS1 (AVDD = DVDD = 2.7 V to 3.3 V or 4.5 V to 5.5 V. VREF = 2.5 V Internal Reference, MCLKIN = 16 MHz,
all specifications T_A = T_MIN to T_MAX, unless otherwise noted.)
Parameter
ADC CHANNEL SPECIFICATIONS
DC ACCURACY^{2, 3}
V_DD = 5 V
Resolution
Integral Nonlinearity
Differential Nonlinearity
Integral Nonlinearity⁴
Differential Nonlinearity⁴
Code Distribution
CALIBRATED ENDPOINT ERRORS^{5, 6}
Offset Error
Offset Error Match
Gain Error
Gain Error Match
DYNAMIC PERFORMANCE
12
±1
± 0.3
± 0.9
± 0.25
± 1.5
+1.5/-0.9
1
±4
±1
±2
–85
Signal-to-Noise Ratio (SNR)⁷
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Channel-to-Channel Crosstalk⁸
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
TEMPERATURE SENSOR⁹
Voltage Output at 25°C
Voltage TC
Accuracy
DAC CHANNEL SPECIFICATIONS
Internal Buffer Enabled
DC ACCURACY¹⁰
Resolution
Relative Accuracy
Differential Nonlinearity¹¹
Offset Error
Gain Error
Gain Error Mismatch
71
–85
–85
–80
0 to V_REF
±1
32
650
–2.0
±3
± 1.5
12
±3
–1
± 1/2
± 50
±1
±1
0.5
V_DD = 3 V
12
±1
± 0.3
± 0.9
± 0.25
± 1.5
+1.5/–0.9
1
±4
±1
±3
–85
71
–85
–85
–80
0 to V_REF
±1
32
650
–2.0
±3
± 1.5
12
±3
–1
± 1/2
± 50
±1
±1
0.5
Unit
Bits
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB max
LSB typ
LSB max
LSB typ
LSB max
dB typ
dB typ
dB typ
dB typ
dB typ
V
µA max
pF typ
mV typ
mV/°C typ
°C typ
°C typ
Bits
LSB typ
LSB max
LSB typ
mV max
% max
% typ
% typ
Test Conditions/Comments
f_SAMPLE = 147 kHz, see Page 11 for
Typical Performance at other f_SAMPLE
2.5 V Internal Reference
2.5 V Internal Reference
1 V External Reference
1 V External Reference
ADC Input is a DC Voltage
f_IN = 10 kHz Sine Wave
f_SAMPLE = 147 kHz
Internal 2.5 V V_REF
External 2.5 V V_REF
DAC Load to AGND
R_L = 10 kΩ, C_L = 100 pF
Guaranteed 12-bit Monotonic
V_REF Range
AV_DD Range
V_REF Range
% of Full Scale on DAC1
ANALOG OUTPUTS
Voltage Range_0
Voltage Range_1
Output Impedance
DAC AC CHARACTERISTICS
Voltage Output Settling Time
Digital-to-Analog Glitch Energy
0 to V_REF
0 to V_DD
0.5
15
10
0 to V_REF
0 to V_DD
0.5
15
10
V typ
V typ
Ω typ
µs typ
nV sec typ
DAC V_REF = 2.5 V
DAC V_REF = V_DD
Full-Scale Settling Time to
within 1/2 LSB of Final Value
1 LSB Change at Major Carry
REV. 0
–3–