參數(shù)資料
型號(hào)： ADUuC7027BSTZ62-RL
廠商： Analog Devices, Inc.
英文描述： Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU
中文描述： 精密模擬微控制器的12位模擬I / O，ARM7TDMI的微控制器
文件頁(yè)數(shù)： 6/92頁(yè)
文件大小： 850K
代理商： ADUUC7027BSTZ62-RL
ADuC7019/20/21/22/24/25/26/27
SPECIFICATIONS
AVDD = IOV
DD
= 2.7 V to 3.6 V, V
REF
= 2.5 V internal reference, f
CORE
= 41.78 MHz, T
A
= 40°C to 125°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
ADC CHANNEL SPECIFICATIONS
ADC Power-Up Time
5
DC Accuracy
1, 2
Resolution
12
Integral Nonlinearity
±0.6
±1.0
Differential Nonlinearity
3, 4
+0.7/0.6
DC Code Distribution
1
ENDPOINT ERRORS
5
Offset Error
±1
Offset Error Match
±1
Gain Error
±2
Gain Error Match
±1
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
69
Total Harmonic Distortion (THD)
78
Peak Harmonic or Spurious Noise
75
Channel-to-Channel Crosstalk
80
ANALOG INPUT
Input Voltage Ranges
Differential Mode
Rev. A | Page 6 of 92
Max
±1.5
Unit
μs
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
dB
dB
dB
dB
V
Test Conditions/Comments
Eight acquisition clocks and fADC/2
2.5 V internal reference
1.0 V external reference
2.5 V internal reference
1.0 V external reference
ADC input is a dc voltage
f
IN
= 10 kHz sine wave, f
SAMPLE
= 1 MSPS
Includes distortion and noise components
Measured on adjacent channels
±0.5
+1/0.9
±2
±5
V
CM6
±V
REF
/2
0 to V
REF
±6
±5
AV
DD
±1
±15
±1
Single-Ended Mode
Leakage Current
Input Capacitance
ON-CHIP VOLTAGE REFERENCE
Output Voltage
Accuracy
Reference Temperature Coefficient
Power Supply Rejection Ratio
Output Impedance
Internal V
REF
Power-On Time
EXTERNAL REFERENCE INPUT
7
Input Voltage Range
Input Impedance
DAC CHANNEL SPECIFICATIONS
DC ACCURACY
8
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Gain Error
9
Gain Error Mismatch
0.625
±1
20
2.5
±40
75
70
1
V
μA
pF
V
mV
ppm/°C
dB
Ω
ms
V
kΩ
Bits
LSB
LSB
mV
%
%
During ADC acquisition
0.47 μF from V
REF
to AGND
T
A
= 25°C
T
A
= 25°C
R
L
= 5 k
Ω
, C
L
= 100 pF
Guaranteed monotonic
2.5 V internal reference
% of full scale on DAC0
65
12
±2
0.1
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