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AD7150 bảng dữ liệu(PDF) 4 Page - Analog Devices

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AD7150 bảng dữ liệu(HTML) 4 Page - Analog Devices

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AD7150
Rev. 0 | Page 3 of 28
SPECIFICATIONS
VDD = 2.7 V to 3.6 V; GND = 0 V; –40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit1
Test Conditions/Comments
CAPACITIVE INPUT
Conversion Input Range CIN to EXC2
3.2
4
pF
4 pF input range
1.6
2
pF
2 pF input range
0.8
1
pF
1 pF input range
0.4
0.5
pF
0.5 pF input range
Resolution3
2.0
fF
4 pF input range
1.6
fF
2 pF input range
1.4
fF
1 pF input range
1.0
fF
0.5 pF input range
Allowed Capacitance CIN to GND3
100
pF
Allowed Resistance CIN to GND3
10
Allowed Serial Resistance3
125
Gain Error
−20
+20
%
Gain Deviation over Temperature3
0.5
%
Gain Matching Between Ranges3
−2
+2
%
Offset Error3
50
fF
CIN and EXC pins disconnected
Offset Deviation over Temperature3
5
fF
CIN and EXC pins disconnected
Integral Nonlinearity (INL)3
0.1
%
Channel-to-Channel Isolation3
60
dB
Power Supply Rejection3
4
fF/V
CAPDAC2
Full Range
10
12.5
pF
Resolution (LSB)3
200
fF
Differential Nonlinearity (DNL)3
0.25
LSB
AutoDAC Increment/Decrement3
25
75
% of CIN Range
EXCITATION
Voltage
±VDD/2
V
Frequency
30.9
32
32.8
kHz
Allowed Capacitance EXC to GND3
300
pF
Allowed Resistance EXC to GND3
1
LOGIC OUTPUTS (OUT1, OUT2)
Output Low Voltage (VOL)
0.4
V
ISINK = −4 mA
Output High Voltage (VOH)
VDD – 0.6
V
ISOURCE = 4 mA
SERIAL INTERFACE INPUTS (SCL, SDA)
Input High Voltage (VIH)
1.5
V
Input Low Voltage (VIL)
0.8
V
Input Leakage Current
±0.1
±5
μA
Input Pin Capacitance
6
pF
OPEN-DRAIN OUTPUT (SDA)
Output Low Voltage (VOL)
0.4
V
ISINK =
6.0 mA
Output High Leakage Current (IOH)
0.1
5
μA
VOUT = VDD
POWER SUPPLY MONITOR
VDD Threshold Voltage
2.45
2.65
V


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