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