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參數資料
| 型號： | ADT7518ARQZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | SPI/I2C Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output DAC |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 5Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | LEAD FREE, MO-137-AB, QSOP-16 |
| 文件頁數： | 4/40頁 |
| 文件大小： | 1217K |
| 代理商： | ADT7518ARQZ |
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ADT7518
Parameter
1
Scale Factor
CONVERSION TIMES
Slow ADC
V
DD
/AIN
Internal Temperature
External Temperature
Fast ADC
V
DD
/AIN
Internal Temperature
External Temperature
ROUND ROBIN UPDATE RATE
5
Rev. A | Page 4 of 40
Min
Typ
8.97
17.58
11.4
712
11.4
712
24.22
1.51
712
44.5
2.14
134
14.25
890
Max
Unit
mV/°C
mV/°C
ms
μs
ms
μs
ms
ms
μs
μs
ms
μs
ms
μs
Conditions/Comments
0 V to V
REF
output. T
A
= –40°C to +120°C.
0 V to 2 V
REF
output. T
A
= –40°C to +120°C.
Single channel mode.
Averaging (16 samples) on.
Averaging off.
Averaging (16 samples) on.
Averaging off.
Averaging (16 samples) on.
Averaging off.
Averaging (16 samples) on.
Averaging off.
Averaging (16 samples) on.
Averaging off.
Averaging (16 samples) on.
Averaging off.
Time to complete one measurement cycle
through all channels.
AIN1 and AIN2 are selected on Pins 7 and 8.
AIN1 and AIN2 are selected on Pins 7 and 8.
D+ and D– are selected on Pins 7 and 8.
D+ and D– are selected on Pins 7 and 8.
AIN1 and AIN2 are selected on Pins 7 and 8.
AIN1 and AIN2 are selected on Pins 7 and 8.
D+ and D– are selected on Pins 7 and 8.
D+ and D– are selected on Pins 7 and 8.
Buffered reference.
Buffered reference and power-down mode.
Frequency = 10 kHz.
Frequency = 10 kHz.
This is a measure of the minimum and maximum
drive capability of the output amplifier.
V
DD
= 5 V.
V
DD
= 3 V.
Coming out of power-down mode. V
DD
= 5 V.
Coming out of power-down mode. V
DD
= 3.3 V.
V
IN
= 0 V to V
DD.
All digital inputs.
Input filtering suppresses noise spikes of less
than 50 ns.
Edge triggered input.
Slow ADC @ 25°C
Averaging On
Averaging Off
Averaging On
Averaging Off
Fast ADC @ 25°C
Averaging On
Averaging Off
Averaging On
Averaging Off
DAC EXTERNAL REFERENCE INPUT
4
V
REF
Input Range
V
REF
Input Impedance
Reference Feedthrough
Channel-to-Channel Isolation
ON-CHIP REFERENCE
Reference Voltage
4
Temperature Coefficient
4
OUTPUT CHARACTERISTICS
4
Output Voltage
7
1
0.001
79.8
4.99
94.76
9.26
6.41
400.84
21.77
3.07
>10
–90
–75
2.25
80
V
DD
V
DD
0.1
ms
ms
ms
ms
ms
μs
ms
ms
V
M
dB
dB
V
ppm/°C
V
DC Output Impedance
Short-Circuit Current
1.89
0.5
25
16
2.5
5
3
±1
0.8
10
50
mA
mA
μs
μs
μA
V
V
pF
ns
Power-Up Time
DIGITAL INPUTS
4
Input Current
V
IL
, Input Low Voltage
V
IH
, Input High Voltage
Pin Capacitance
SCL, SDA Glitch Rejection
LDAC Pulse Width
20
ns
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