參數(shù)資料
型號(hào): ADT7486ARMZ-REEL7
廠商: ANALOG DEVICES INC
元件分類(lèi): 溫度/濕度傳感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT
封裝: LEAD FREE, PLASTIC, MO-187-BA, MSOP-10
文件頁(yè)數(shù): 10/16頁(yè)
文件大?。?/td> 177K
代理商: ADT7486ARMZ-REEL7
Preliminary Technical Data
ADT7484/ADT7486
Rev. PrA | Page 3 of 16
SPECIFICATIONS
TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
POWER SUPPLY
Supply Voltage, VCC
3.0
3.3
3.6
V
Undervoltage Lockout Threshold
2.8
V
Average Operating Supply Current, IDD
1.4
mA
Continuous conversions
TEMPERATURE-TO-DIGITAL CONVERTER
Local Sensor Accuracy
±1
°C
40
≤ T
A
≤ 70°C, V
CC
= 3.3 V
±3
°C
40
≤ T
A
≤ +125°C
Remote Sensor Accuracy
±1
°C
40
≤ T
D
≤ +125°C; 40 ≤ T
A
≤ 70°C,
VCC = 3.3 V
±3
°C
40
≤ T
D
≤ +125°C; 40 ≤ T
A
≤ +125°C
Remote Sensor Source Current
6
μA
Low level
36
μA
Mid level
96
μA
High level
Resolution
0.016
°C
Conversion Time (Local Temperature)1
12
ms
Averaging enabled
Conversion Time (Remote Temperature)1
38
ms
Averaging enabled
Total Monitoring Cycle Time1
50
ms
Averaging enabled
DIGITAL INPUTS (ADD0, ADD1)
Input High Voltage, VIH
2.1
V
Input Low Voltage, VIL
0.8
V
Input High Current, IIH
1
μA
VIN = VCC
Input Low Current, IIL
1
μA
VIN = 0
Pin Capacitance
5
pF
DIGITAL I/O (SST Pin)
Input High Voltage , VIH
1.1
V
Input Low Voltage, VIL
0.4
V
Hysteresis1
150
mV
Between input switching levels
Output High Voltage, VOH
1.1
1.9
V
ISOURCE = 6 mA (maximum)
High Impedance State Leakage, ILEAK
±1
A
Device powered on SST bus;
VSST = 1.1 V, VCC = 3.3 V
High Impedance State Leakage, ILEAK
±10
A
Device unpowered on SST bus;
VSST = 1.1 V, VCC = 0 V
Signal Noise Immunity, VNOISE
300
mV p-p
Noise glitches from 10 MHz to 100 MHz;
width up to 50 ns
SST TIMING
Bitwise Period, tBIT
0.495
500
s
High Level Time for Logic 1, tH1 2
0.65 × tBIT
0.75 × tBIT
0.8 × tBIT
s
tBIT defined in speed negotiation
High Level Time for Logic 0, tH0 2
0.2 × tBIT
0.25 × tBIT
0.4 × tBIT
s
Time to Assert SST High for Logic 1, tSU,HIGH
0.2 × tBIT
s
Hold Time, tHOLD3
0.5 × tBIT-M
s
See SST Specification Rev 1.0
Stop Time, tSTOP
1.25 × tBIT
2 × tBIT
s
Device responding to a constant low
level driven by originator
Time to Respond After a Reset, tRESET
0.4
ms
Response Time to Speed Negotiation
After Power-Up
500
s
Time after power-up when device can
participate in speed negotiation
1 Guaranteed by design, not production tested.
2 Minimum and maximum bit times are relative to tBIT defined in the timing negotiation pulse.
3 Devices compatible with hold time specification as driven by SST originator.
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