參數(shù)資料
型號(hào): ADUC7022BCP
廠商: ANALOG DEVICES INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, FLASH, 45.5 MHz, RISC MICROCONTROLLER, QCC40
封裝: 6 X 6 MM, MO-220VJJD-2, LFCSP-40
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 199K
代理商: ADUC7022BCP
Preliminary Technical Data
ADuC7020/ADuC7021/ADuC7022
Rev. PrC | Page 3 of 16
ADUC7020/21/22—SPECIFICATIONS1
Table 1. (AVDD = IOVDD = 2.7 to 3.6V, VREF = 2.5 V Internal Reference, fCORE = 45MHz, All specifications TA = TMAX to TMIN, unless otherwise noted.)
Parameter
ADuC7020/21/22
Unit
Test Conditions/Comments
ADC CHANNEL SPECIFICATIONS
DC Accuracy 2, 3
fSAMPLE = 1MSPS
Resolution
12
Bits
Integral Nonlinearity
Integral Nonlinearity 4
±1.5
±0.5
±2.0
LSB max
LSB typ
LSB max
2.5V internal reference
1.0V external reference
Differential Nonlinearity
Differential Nonlinearity 4
DC Code Distribution
+1/-0.9
±0.5
+1/-0.9
1
LSB max
LSB typ
LSB max
LSB typ
2.5V internal reference
1.0V external reference
ADC input is a dc voltage
CALIBRATED ENDPOINT ERRORS 5
Offset Error
Offset Error Match
±5
±1
LSB max
LSB typ
Gain Error
Gain Error Match
±5
±1
LSB max
LSB typ
DYNAMIC PERFORMANCE
Fin = 10kHz Sine Wave, fSAMPLE = 1MSPS
Signal-to-Noise Ratio (SNR) 6
71
dB typ
Total Harmonic Distortion (THD)
-78
dB typ
Peak Harmonic or Spurious Noise
Channel-to-Channel Crosstalk 7
-78
-80
dB typ
ANALOG INPUT
Input Voltage Ranges
Differential mode
VCM8±VREF/2
Volts
Single-ended mode
0 to VREF
Volts
Leakage Current
±5
A max
Input Capacitance
20
pF typ
During ADC Acquisition
ON-CHIP VOLTAGE REFERENCE
Output Voltage
2.5
V
0.47F from VREF (pin 55) to AGND
Accuracy
±10
mV max
Measured at TA = 25°C
Reference Temperature Coefficient
Power Supply Rejection Ratio
±10
80
ppm/°C typ
dB typ
Output Impedance
Internal VREF Power-On Time
10
1
typ
ms typ
EXTERNAL REFERENCE INPUT9
Input Voltage Range
Input Impedance
0.625
AVDD
TBD
V min
V max
K typ
DAC CHANNEL SPECIFICATIONS
RL = 5k
, CL = 100pF
DC ACCURACY
Resolution
12
Bits
Relative Accuracy
±2
LSB typ
Differential Nonlinearity
±1
LSB max
Guaranteed Monotonic
Offset Error
±2
±5
mV max
DAC output unbuffered
DAC output buffered
Gain Error
Gain Error Mismatch
±0.5
TBD
% max
% typ
% of fullscale on DAC0
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