Datasheet

ST3222B - ST3222C Electrical characteristics
Doc ID 7512 Rev 7 5/13
3 Electrical characteristics
Note: Transmitter input hysteresis is typically 250 mV
Table 4. Electrical characteristics (C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 3.6 V, T
A
= -40 to 85 °C, unless
otherwise specified. Typical values are referred to T
A
= 25 °C)
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
SUPPLY
V
CC
power supply
current
No load V
CC
= 3.3 V T
A
= 25 °C
SHDN = V
CC
0.3 1 mA
I
SHDN
SHUTDOWN supply
current
No load V
CC
= 3.3V T
A
= 25 °C
SHDN = GND
110µA
Table 5. Logic input electrical characteristics (C
1
- C
4
= 0.1 µF, V
C
= 3 V to 3.6 V,
T
A
= - 40 to 85 °C, unless otherwise specified. Typical values are referred to T
A
= 25 °C)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IL
Input logic threshold low T-IN, EN, SHDN (Note:)0.8V
V
IH
Input logic threshold
high
V
CC
= 3.3 V 2 V
V
HYS
Transmitter input
hysteresis
0.5 V
I
IL
Input leakage current T-IN, EN, SHDN ± 0.01 ± 1µA
Table 6. Transmitter electrical characteristics (C
1
- C
4
= 0.1 µA V
CC
= 3 V to 3.6 V,
T
A
= -40 to 85 °C, unless otherwise specified. Typical values are referred to T
A
= 25 °C)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
TOUT
Output voltage swing
All transmitter outputs are loaded with
3 kΩ to GND
± 5 ± 5.4 V
R
TOUT
Transmitter output
resistance
V
CC
= V+ = V- = 0 V, V
OUT
= ± 2 V 300 10M Ω
I
TSC
Output short circuit
current
± 60 mA
I
TOL
Output leakage current
V
CC
= 0V or 3 V to 3.6 V, V
OUT
= ± 12 V
Transmitters disable
± 25 µA