Si7015-A10
4 Rev. 1.0
1. Electrical Specifications
Unless otherwise specified, all min/max specifications apply over the recommended operating conditions.
Table 1. Recommended Operating Conditions
Parameter Symbol Test Condition Min Typ Max Unit
Power Supply V
DD 1.9 — 3.6 V
Operating Temperature T
A F grade 0 — +70 °C
Operating Temperature T
A G grade –40 — +85 °C
Table 2. General Specifications
1.9 < VDD < 3.6 V; TA = –40 to 85 °C (G grade) or 0 to 70 °C (F grade); default conversion time unless otherwise noted.
Parameter Symbol
Test Condition
1
Min Typ Max Unit
Input Voltage High V
IH
AD0, SCL, SDA pins 0.7xVDD ——V
Input Voltage Low V
IL AD0, SCL, SDA pins — — 0.3xVDD V
Input Voltage Range V
IN SCL, SDA, RSTb pins with respect to
GND
0.0 — VDD V
Input Leakage I
IL SCL, SDA pins; V
IN
=GND — — 1 μA
CS
pin (200K nominal pull up);
Vin = GND
5xVDD μA
Output Voltage Low V
OL SDA pin; IOL = 2.5 mA; VDD = 3.3 V — — 0.6 V
SDA pin; I
OL =1.2mA;
V
DD =1.9V
——0.4V
Current
Consumption
I
DD
RH conversion in progress — 150 180 µA
Temperature conversion in progress — 90 120 µA
CS
< V
IL
; no conversion in progress;
V
DD
= 3.3 V;
SDA = SCL ≥ V
IH
; HEAT = 1
—24—
mA
Standby
2
, –40 to +85°C — 0.06 0.62 µA
Peak IDD during powerup
3
—3.54.0mA
Peak IDD during I
2
C operations
4
—3.54.0mA
Conversion Time t
CONV
RH Normal (Fast = 0) — 5.8 7.0 ms
RH Fast (Fast = 1) — 2.6 3.1 ms
Temperature Normal (Fast = 0) — 4.0 6.2 ms
Temperature Fast (Fast = 1) — 1.5 2.4 ms
Notes:
1. Initiating a RH measurement will also automatically initiate a temperature measurement. The total conversion time will
be t
CONV
(RH) + t
CONV
(T).
2. No conversion or I
2
C transaction in progress. Typical values measured at 25 °C.
3. Occurs once during powerup. Duration is <5 msec.
4. Occurs during I
2
C commands for Read Device ID and Read Firmware Version. Duration is < 100 µs when I
2
C clock
speed is >100 kHz.
