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ADT7318ARQ-REEL 数据表(PDF) 4 Page - Analog Devices

部件名 ADT7318ARQ-REEL
功能描述  Accurate Digital Temperature Sensor
Download  44 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADT7318ARQ-REEL 数据表(HTML) 4 Page - Analog Devices

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ADT7316/ADT7317/ADT7318
Rev. B | Page 4 of 44
Parameter1
Min
Typ
Max
Unit
Conditions/Comments
CONVERSION TIMES
Single channel mode.
Slow ADC
VDD
11.4
ms
Averaging (16 samples) on.
712
μs
Averaging off.
Internal Temperature
11.4
ms
Averaging (16 samples) on.
712
μs
Averaging off.
External Temperature
24.22
ms
Averaging (16 samples) on
1.51
ms
Averaging off.
Fast ADC
VDD
712
μs
Averaging (16 samples) on.
44.5
μs
Averaging off.
Internal Temperature
2.14
ms
Averaging (16 samples) on.
134
μs
Averaging off.
External Temperature
14.25
ms
Averaging (16 samples) on.
890
μs
Averaging off.
ROUND ROBIN UPDATE RATE4
Time to complete one measurement cycle
through all channels.
Slow ADC at 25°C
59.95
ms
Averaging on
.
6.52
ms
Averaging off
.
Fast ADC at 25°C
19.59
ms
Averaging on
.
2.89
ms
Averaging off
.
DAC EXTERNAL REFERENCE INPUT5
VREF Input Range
1
VDD
V
Buffered reference mode.
VREF Input Range
0.25
VDD
V
Unbuffered reference mode.
VREF Input Impedance
37
45
Unbuffered reference mode.
0 V to 2 VREF output range.
74
90
Unbuffered reference mode.
0 V to VREF output range.
>10
Buffered reference mode and power-down
mode.
Reference Feedthrough
−90
dB
Frequency = 10 kHz.
Channel-to-Channel Isolation
−75
dB
Frequency = 10 kHz.
ON-CHIP REFERENCE
Reference Voltage5
2.2662
2.28
2.2938
V
Temperature Coefficient5
80
ppm/°C
OUTPUT CHARACTERISTICS5
Output Voltage6
0.001
VDD to 0.001
V
This is a measure of the minimum and maximum
drive capability of the output amplifier.
DC Output Impedance
0.5
Ω
Short-Circuit Current
25
mA
VDD = 5 V.
16
mA
VDD = 3 V.
Power-Up Time
2.5
μs
Coming out of power-down mode. VDD = 5 V.
5
μs
Coming out of power-down mode. VDD = 3.3 V.
DIGITAL INPUTS5
Input Current
±1
μA
VIN = 0 V to VDD.
Input Low Voltage, VIL
0.8
V
Input High Voltage, VIH
1.89
V
Pin Capacitance
3
10
pF
All digital inputs.
SCL, SDA Glitch Rejection
50
ns
Input filtering suppresses noise spikes of less than
50 ns.
LDAC Pulse Width
20
ns
Edge triggered input.


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