Datasheet

ADM231L–ADM234L/ADM236L–ADM241L
Rev. C | Page 3 of 20
SPECIFICATIONS
V
CC
= 5 V ± 10% (ADM231L, ADM232L, ADM234L, ADM236L, ADM238L, ADM239L, ADM241L); V
CC
= 5 V ± 5% (ADM233L and
ADM237L); V+ = 7.5 V to 13.2 V (ADM231L and ADM239L); C1 to C4 = 1.0 µF ceramic. All specifications T
MIN
to T
MAX
, unless
otherwise noted.
Table 2.
Parameter Min Typ Max Unit Test Conditions/Comments
Output Voltage Swing ±5 ±9 V
All transmitter outputs loaded with 3 kΩ to ground
V
CC
Power Supply Current 2.5 6.0 mA No load, (ADM232L only)
3.5 13 mA No load
V+ Power Supply Current 1.5 4 mA No load, V+ = 12 V (ADM231L and ADM239L only)
Shutdown Supply Current 1 10 µA
Input Logic Threshold Low, V
INL
0.8 V
T
IN
, EN, SD, EN, SD
Input Logic Threshold High, V
INH
2.0 V
T
IN
, EN, SD, EN, SD
Logic Pull-Up Current 12 25 µA
RS-232 Input Voltage Range
1
–30 +30 V T
IN
= 0 V
RS-232 Input Threshold Low 0.8 1.2 V
RS-232 Input Threshold High 1.6 2.4 V
RS-232 Input Hysteresis 0.65 V
RS-232 Input Resistance 3 5 7 kΩ T
A
= 0°C to 85°C
TTL/CMOS Output Voltage Low, V
OL
0.4 V
TTL/CMOS Output Voltage High, V
OH
3.5 V I
OUT
= −1.0 mA
TTL/CMOS Output Leakage Current +0.05 ±10 µA
EN
= V
CC
, 0 V ≤ R
OUT
≤ V
CC
Output Enable Time (T
EN
) 250 ns ADM236L, ADM239L, ADM241L (Figure 31, C
L
= 150 pF)
Output Disable Time (T
DIS
) 50 ns ADM236L, ADM239L, ADM241L (Figure 31, R
L
= 1 kΩ)
Propagation Delay 0.3 µs RS-232 to TTL
Transition Region Slew Rate 8 V/µs R
L
= 3 kΩ, C
L
= 2500 pF, measured from +3 V to −3 V or −3 V to +3 V
Output Resistance 300 Ω V
CC
= V+ = V– = 0 V, V
OUT
= ±2 V
RS-232 Output Short-Circuit Current ±10 mA
1
Guaranteed by design.