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ADUCM310 датащи(PDF) 6 Page - Analog Devices

номер детали ADUCM310
подробное описание детали  Precision Analog Microcontroller, Tunable Optical Control Microcontroller
PDF  28 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADUCM310 датащи(HTML) 6 Page - Analog Devices

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Data Sheet
ADuCM310
Rev. A Page 5 of 27
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
Total Harmonic Distortion (THD)
Input Buffer
Disabled
−86
dB
Enabled
−86
dB
Chop mode on and automatic zero
Peak Harmonic or Spurious Noise
−88
dB
Buffer on and off
Channel-to-Channel Crosstalk
−95
dB
Measured on adjacent channels; f
IN =
25 kHz sine wave; buffer on and off
ANALOG INPUT
Absolute Input Voltage Range
Unbuffered Mode
AGND
AV
DD
V
Voltage level on AINx pin
Buffered Mode
AGND + 0.15
2.5
V
Voltage level on AINx pin
Input Voltage Ranges
Differential Mode
−V
REF
+V
REF
V
Voltage difference between AIN+
(positive input) and AIN− (negative
input)
Common-Mode Voltage Range
0.9
1.6
V
Single-Ended Mode
AGND
V
REF
V
Voltage difference between AIN+
and AIN−
Input Current2
Buffered Mode
V
IN = 0.15 V to 2.5 V
AIN0, AIN1, AIN2, and AIN3
−101
±5
+12.51
nA
ADC sampling rate ≤ 100 kSPS
−40
±15
+60
nA
ADC sampling rate ≤ 500 kSPS
−601
±25
+901
nA
ADC sampling rate ≤ 800 kSPS
Input Current Drift
±10
pA/°C
Input buffer on, ADC sampling rate ≤
500 kSPS
±20
pA/°C
Input buffer on, ADC sampling rate ≤
800 kSPS
AIN4 to AIN9
−501
±20
+501
nA
AIN4 to AIN9 ≤ 100 kSPS
−2101
±50
+1101
nA
ADC sampling rate ≤ 500 kSPS
−3501
−90
+901
nA
ADC sampling rate ≤ 800 kSPS
Unbuffered Mode
−11001
+750
+17001
nA
V
IN = 0 V to 2.5 V, all channels, all
sampling rates
Input Current Drift
±140
pA/°C
V
IN = 1 V
Input Capacitance
20
pF
During ADC acquisition, buffer on
Input Leakage Current
−1.61
+1
+3.51
nA
ADC off, buffer off or buffer on,
AINx connected 2.5 V
ON-CHIP VOLTAGE REFERENCE
0.47 µF from VREF_1.2 to AGND
Output Voltage
2.505
V
Accuracy3
±5
mV
T
A = 25°C
Reference Temperature Coefficient1, 4
15
30
ppm/°C
Power Supply Rejection Ratio
70
dB
Output Impedance
3
Ω
For ADC_CAPP, T
A = 25°C
Internal V
REF Power-On Time
1
38
50
ms
Turned on by default
EXTERNAL REFERENCE INPUT1
Input Voltage Range1
1.8
2.5
V
ADC maximum reference voltage =
2.5 V
Switching Time
External to Internal Reference
2.5
ms
Internal to External Reference
1
ms



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