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AD7816AR

更新时间： 2024-02-27 07:06:08
品牌 Logo 应用领域
亚德诺 - ADI 传感器温度传感器
页数 文件大小 规格书
16页 189K
描述
Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor

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AD7816AR 数据手册

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AD7816/AD7817/AD7818  
AD7817–SPECIFICATIONS1  
(VDD = +2.7 V to +5.5 V, GND = 0 V, REFIN = +2.5 V unless otherwise noted)  
Parameter  
A Version *B Version *S Version Units  
Test Conditions/Comments  
DYNAMIC PERFORMANCE  
Sample Rate = 100 kSPS, Any  
Channel, fIN = 20 kHz  
Signal to (Noise + Distortion) Ratio2 58  
58  
–65  
–65  
58  
–65  
–65  
dB min  
dB max  
dB max  
Total Harmonic Distortion2  
Peak Harmonic or Spurious Noise2  
Intermodulation Distortion2  
Second Order Terms  
–65  
–65  
–75 dB typ  
–75 dB typ  
fa =19.9 kHz, fb = 20.1 kHz  
–67  
–67  
–80  
–67  
–67  
–80  
–67  
–67  
–80  
dB typ  
dB typ  
dB typ  
Third Order Terms  
Channel-to-Channel Isolation2  
fIN = 20 kHz  
Any Channel  
DC ACCURACY  
Resolution  
10  
10  
10  
Bits  
Minimum Resolution for Which  
No Missing Codes Are Guaranteed 10  
10  
±1  
±1  
±2  
±10  
±1/2  
±2  
10  
±1  
±1  
±2  
+20/–10  
±1/2  
±2  
Bits  
Relative Accuracy2  
Differential Nonlinearity2  
Gain Error2  
±1  
±1  
±2  
±10  
±1/2  
±2  
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
External Reference  
Internal Reference  
Gain Error Match2  
Offset Error2  
Offset Error Match  
±1/2  
±1/2  
±1/2  
TEMPERATURE SENSOR1  
Measurement Error  
Ambient Temperature +25°C  
TMIN to TMAX  
Measurement Error  
External Reference VREF = 2.5 V  
On-Chip Reference  
±2  
±3  
±1  
±2  
±2  
±3  
°C max  
°C max  
Ambient Temperature +25°C  
TMIN to TMAX  
Temperature Resolution  
±2.25  
±3  
1/4  
±2.25  
±3  
1/4  
±2.25  
±6  
1/4  
°C max  
°C max  
°C/LSB  
REFERENCE INPUT3, 4  
REFIN Input Voltage Range3  
2.625  
2.375  
40  
2.625  
2.375  
40  
2.625  
2.375  
40  
V max  
V min  
kΩ min  
pF max  
2.5 V + 5%  
2.5 V – 5%  
Input Impedance  
Input Capacitance  
10  
10  
10  
ON-CHIP REFERENCE5  
Nominal 2.5 V  
Temperature Coefficient3  
80  
80  
150  
400  
ppm/°C typ  
CONVERSION RATE  
Track/Hold Acquisition Time4  
Conversion Time  
400  
400  
ns max  
Source Impedance < 10 Ω  
Temperature Sensor  
Channels 1 to 4  
27  
9
27  
9
27  
9
µs max  
µs max  
POWER REQUIREMENTS  
VDD  
+5.5  
+2.7  
+5.5  
+2.7  
+5.5  
+2.7  
V max  
V min  
For Specified Performance  
IDD  
Logic Inputs = 0 V or VDD  
1.6 mA typ  
2.5 V External Reference Connected  
50 nA typ  
Normal Operation  
Using External Reference  
Power-Down  
2
1.75  
1
2
1.75  
1
2
1.75  
2
mA max  
mA max  
µA max  
Auto Power-Down Mode  
10 SPS Throughput Rate  
1 kSPS Throughput Rate  
10 kSPS Throughput Rate  
Power-Down  
VDD = 3 V  
6
6
6
µW typ  
µW typ  
µW typ  
µW max  
See Power vs. Throughput Section  
for Description of Power Dissipation  
in Auto Power-Down Mode  
Typically 0.15 µW  
60  
600  
3
60  
600  
3
60  
600  
6
–2–  
REV. A  
1234567...16

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