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參數(shù)資料
| 型號： | AD7816ARMZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| 封裝： | MICRO, SOIC-8 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大小： | 203K |
| 代理商： | AD7816ARMZ |
–2–
REV. B
AD7816/AD7817/AD7818
Parameter
A Version
*B Version
*S Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Sample Rate = 100 kSPS, Any
Channel, fIN = 20 kHz
Signal to (Noise + Distortion) Ratio
2
58
dB min
Total Harmonic Distortion
2
–65
dB max
–75 dB typ
Peak Harmonic or Spurious Noise
2
–65
dB max
–75 dB typ
Intermodulation Distortion
2
fa =19.9 kHz, fb = 20.1 kHz
Second Order Terms
–67
dB typ
Third Order Terms
–67
dB typ
Channel-to-Channel Isolation
2
–80
dB typ
fIN = 20 kHz
DC ACCURACY
Any Channel
Resolution
10
Bits
Minimum Resolution for Which
No Missing Codes are Guaranteed
10
Bits
Relative Accuracy
2
±1
±1LSB max
Differential Nonlinearity
2
±1
±1LSB max
Gain Error
2
±2
LSB max
External Reference
±10
+20/–10
LSB max
Internal Reference
Gain Error Match
2
±1/2
LSB max
Offset Error
2
±2
±2LSB max
Offset Error Match
±1/2
LSB max
TEMPERATURE SENSOR1
Measurement Error
External Reference VREF = 2.5 V
Ambient Temperature 25
°C
±2
±1
±2
°C max
TMIN to TMAX
±3
±2
±3
°C max
Measurement Error
On-Chip Reference
Ambient Temperature 25
°C
±2.25
°C max
TMIN to TMAX
±3
±6
°C max
Temperature Resolution
1/4
°C/LSB
REFERENCE INPUT
3, 4
REFIN Input Voltage Range
3
2.625
V max
2.5 V + 5%
2.375
V min
2.5 V – 5%
Input Impedance
40
k
min
Input Capacitance
10
pF max
ON-CHIP REFERENCE
5
Nominal 2.5 V
Temperature Coefficient
3
80
150
ppm/
°C typ
CONVERSION RATE
Track/Hold Acquisition Time
4
400
ns max
Source Impedance < 10
Conversion Time
Temperature Sensor
27
s max
Channels 1 to 4
9
s max
POWER REQUIREMENTS
VDD
5.5
V max
For Specified Performance
2.7
V min
IDD
Logic Inputs = 0 V or VDD
Normal Operation
2
mA max
1.6 mA typ
Using External Reference
1.75
mA max
2.5 V External Reference Connected
Power-Down (VDD = 5 V)
10
12.5
A max
5.5
A typ
Power-Down (VDD = 3 V)
4
4.5
A max
2
A typ
Auto Power-Down Mode
VDD = 3 V
10 SPS Throughput Rate
6.4
W typ
See Power vs. Throughput Section
1 kSPS Throughput Rate
48.8
W typ
for Description of Power Dissipa-
10 kSPS Throughput Rate
434
W typ
tion in Auto Power-Down Mode
Power-Down
12
13.5
W max
Typically 6
W
AD7817–SPECIFICATIONS1 (V
DD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V unless otherwise noted)
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