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OP283 bảng dữ liệu(PDF) 3 Page - Analog Devices

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Giải thích chi tiết về linh kiện  MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
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OP283 bảng dữ liệu(HTML) 3 Page - Analog Devices

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ADuC841/ADuC842/ADuC843
Rev. 0 | Page 3 of 88
SPECIFICATIONS1
Table 1. AVDD = DVDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V; VREF = 2.5 V internal reference, fCORE = 16.78 MHz @ 5 V 8.38 MHz @ 3 V;
all specifications TA = TMIN to TMAX, unless otherwise noted
Parameter
VDD = 5 V
VDD = 3 V
Unit
Test Conditions/Comments
ADC CHANNEL SPECIFICATIONS
DC ACCURACY2, 3
fSAMPLE = 120 kHz, see the Typical
Performance Characteristics for typical
performance at other values of fSAMPLE
Resolution
12
12
Bits
Integral Nonlinearity
±1
±1
LSB max
2.5 V internal reference
±0.3
±0.3
LSB typ
Differential Nonlinearity
+1/–0.9
+1/–0.9
LSB max
2.5 V internal reference
±0.3
±0.3
LSB typ
Integral Nonlinearity4
±2
±1.5
LSB max
1 V external reference
Differential Nonlinearity4
+1.5/–0.9
+1.5/–0.9
LSB max
1 V external reference
Code Distribution
1
1
LSB typ
ADC input is a dc voltage
CALIBRATED ENDPOINT ERRORS5, 6
Offset Error
±3
±2
LSB max
Offset Error Match
±1
±1
LSB typ
Gain Error
±3
±2
LSB max
Gain Error Match
±1
±1
LSB typ
DYNAMIC PERFORMANCE
fIN = 10 kHz sine wave
fSAMPLE = 120 kHz
Signal-to-Noise Ratio (SNR)7
71
71
dB typ
Total Harmonic Distortion (THD)
–85
–85
dB typ
Peak Harmonic or Spurious Noise
–85
–85
dB typ
Channel-to-Channel Crosstalk8
–80
–80
dB typ
ANALOG INPUT
Input Voltage Range
0 to VREF
0 to VREF
V
Leakage Current
±1
±1
µA max
Input Capacitance
32
32
pF typ
TEMPERATURE SENSOR9
Voltage Output at 25°C
700
700
mV typ
Voltage TC
–1.4
–1.4
mV/°C typ
Accuracy
±1.5
±1.5
°C typ
Internal/External 2.5 V VREF
DAC CHANNEL SPECIFICATIONS
DAC load to AGND
Internal Buffer Enabled
ADuC841/ADuC842 Only
RL = 10 kΩ, CL = 100 pF
DC ACCURACY10
Resolution
12
12
Bits
Relative Accuracy
±3
±3
LSB typ
Differential Nonlinearity11
–1
–1
LSB max
Guaranteed 12-bit monotonic
±1/2
±1/2
LSB typ
Offset Error
±50
±50
mV max
VREF range
Gain Error
±1
±1
% max
AVDD range
±1
±1
% typ
VREF range
Gain Error Mismatch
0.5
0.5
% typ
% of full-scale on DAC1
ANALOG OUTPUTS
Voltage Range_0
0 to VREF
0 to VREF
V typ
DAC VREF = 2.5 V
Voltage Range_1
0 to VDD
0 to VDD
V typ
DAC VREF = VDD
Output Impedance
0.5
0.5
Ω typ


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