SI7050-A20 Datasheet, PDF (4/26 Pages) Silicon Laboratories – IC TEMPERATURE SENSORS

Si7050/3/4/5-A20
1. Electrical Specifications
Unless otherwise specified, all min/max specifications apply over the recommended operating conditions.
Table 1. Recommended Operating Conditions
Parameter
Power Supply
Symbol Test Condition
Min
Typ
VDD
1.9
—
Operating Temperature
TA
–40
—
Max
Unit
3.6
V
+125
°C
Table 2. General Specifications
1.9 < VDD < 3.6 V; TA = –40 to 125 °C default conversion time unless otherwise noted.
Parameter
Input Voltage High
Input Voltage Low
Input Voltage Range
Input Leakage
Output Voltage Low
Symbol
V_IH
VIL
VIN
IIL
VOL
Current
IDD
Consumption
Conversion Time
t_CONV
Powerup Time
t_PU
Test Condition
SCL, SDA pins
SCL, SDA pins
SCL, SDA pins with respect to GND
SCL, SDA pins
SDA pin; IOL = 2.5 mA; VDD = 3.3 V
SDA pin; IOL = 1.2 mA;
VDD = 1.9 V
Temperature conversion in progress
Standby, –40 to +85 °C¹
Standby, –40 to +125 °C¹
Peak IDD during powerup²
Peak IDD during I²C operations³
14-bit temperature
13-bit temperature
12-bit temperature
11-bit temperature
From VDD ≥ 1.9 V to ready for a
conversion, 25 °C
From VDD ≥ 1.9 V to ready for a
conversion, full temperature range
After issuing a software reset
command
Min
0.7 x VDD
—
0.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
90
0.06
0.06
3.5
3.5
7
4
2.4
1.5
18
—
5
Max Unit
—
V
0.3 x VDD V
VDD
V
1
μA
0.6
V
0.4
V
120
μA
0.62 μA
3.8
μA
4.0
mA
4.0
mA
10.8 ms
6.2
ms
3.8
ms
2.4
ms
25
80
ms
15
Notes:
1. No conversion or I²C transaction in progress. Typical values measured at 25 °C.
2. Occurs once during powerup. Duration is <5 msec.
3. Occurs during I²C commands for Reset, Read/Write User Registers, Read EID, and Read Firmware Version. Duration is
<100 µs when I²C clock speed is >100 kHz (>200 kHz for 2-byte commands).
4
Rev. 1.0