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參數資料
| 型號： | AD7818AR-REEL |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | ADC |
| 英文描述： | 3/5V, 1 MSPS, 8-Bit, Serial Interface Sampling ADC; Package: SOIC; No of Pins: 8; Temperature Range: Commercial |
| 中文描述： | 與單核和4通道，9我們，10位ADC片上溫度傳感器 |
| 文件頁數： | 3/20頁 |
| 文件大小： | 279K |
| 代理商： | AD7818AR-REEL |
REV. C
AD7816/AD7817/AD7818
–3–
Parameter
A Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE (AD7818 Only)
Sample Rate = 100 kSPS, Any Channel,
f
IN
= 20 kHz
Signal to (Noise + Distortion) Ratio
2
Total Harmonic Distortion
2
Peak Harmonic or Spurious Noise
2
Intermodulation Distortion
2
Second Order Terms
Third Order Terms
Channel-to-Channel Isolation
2
57
–65
–67
dB min
dB max
dB typ
–75 dB typ
–75 dB typ
fa = 19.9 kHz, fb = 20.1 kHz
–67
–67
–80
dB typ
dB typ
dB typ
f
IN
= 20 kHz
Any Channel
DC ACCURACY (AD7818 Only)
Resolution
Minimum Resolution for Which
No Missing Codes are Guaranteed
Relative Accuracy
2
Differential Nonlinearity
2
Gain Error
2
Offset Error
2
TEMPERATURE SENSOR
1
Measurement Error
Ambient Temperature 25
°
C
T
MIN
to T
MAX
Measurement Error
Ambient Temperature 25
°
C
T
MIN
to T
MAX
Temperature Resolution
REFERENCE INPUT
3, 4
(AD7816 Only)
REF
IN
Input Voltage Range
3
10
Bits
10
Bits
LSB max
LSB max
LSB max
LSB max
1
1
10
4
External Reference V
REF
= 2.5 V
2
3
°
C max
°
C max
On-Chip Reference
2
3
°
C max
°
C max
°
C/LSB
1/4
2.625
2.375
50
10
V max
V min
k
min
pF max
2.5 V + 5%
2.5 V – 5%
Input Impedance
Input Capacitance
ON-CHIP REFERENCE
5
Temperature Coefficient
3
Nominal 2.5 V
30
ppm/
°
C typ
CONVERSION RATE
Track/Hold Acquisition Time
4
Conversion Time
Temperature Sensor
Channel 1
400
ns max
Source Impedance < 10
27
9
μ
s max
μ
s max
(AD7818 Only)
POWER REQUIREMENTS
V
DD
5.5
2.7
V max
V min
For Specified Performance
I
DD
Logic Inputs = 0 V or V
DD
1.3 mA typ
2.5 V External Reference Connected
6
μ
A typ
2
μ
A typ
V
DD
= 3 V
See Power vs. Throughput Section for
Description of Power Dissipation in
Auto Power-Down Mode
Typically 6
μ
W
Normal Operation
Using External Reference
Power-Down (V
DD
= 5 V)
Power-Down (V
DD
= 3 V)
Auto Power-Down Mode
10 SPS Throughput Rate
1 kSPS Throughput Rate
10 kSPS Throughput Rate
Power-Down
2
1.75
10.75
4.5
mA max
mA max
μ
A max
μ
A max
6.4
48.8
434
13.5
μ
W typ
μ
W typ
μ
W typ
μ
W max
AD7816/AD7818
6
–SPECIFICATIONS
1
(V
DD
= 2.7 V to 5.5 V, GND = 0 V, REF
IN
= 2.5 V unless
otherwise noted)
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相關代理商/技術參數 |
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| AD7818AR-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 10-bit Serial 8-Pin SOIC N T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 100KSPS 10-BIT SERL 8SOIC N - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:1 CH. ADC W/0N-CHIP TEMP SENSOR I.C. - Tape and Reel |
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