Datasheet

MAX218
1.8V to 4.25V-Powered,
True RS-232 Dual Transceiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
CC
= 1.8V to 4.25V, C1 = 0.47µF, C2 = C3 = C4 = 1µF, L1 = 15µH, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at V
CC
= 3.0V, T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltages
V
CC
....................................................................-0.3V to +4.6V
V+.......................................................... (V
CC
- 0.3V) to +7.5V
V-.......................................................................+0.3V to -7.4V
V
CC
to V-..........................................................................+12V
LX ................................................................-0.3V to (1V + V+)
Input Voltages
T_IN, EN, S
—
H
—
D
—
N
–
................................................. -0.3V to +7V
R_IN.................................................................................±25V
Output Voltages
T_OUT.............................................................................±15V)
R_OUT....................................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration, R_OUT, T_OUT to GND ....... Continuous
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 11.11mW/°C above +70°C) ..........889mW
Wide SO (derate 10.00mW/°C above +70°C)..............800mW
SSOP (derate 8.00mW/°C above +70°C) ...................640mW
Operating Temperature Ranges
MAX218C_ P..................................................... 0°C to +70°C
MAX218E_ P................................................... -40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) ........................... +300°C
All transmitter outputs loaded with 3kΩ to ground
-15V < R_IN < +15V
No load, V
CC
= EN = S
—
H
—
D
—
N
–
= 3.0V, T
A
= +25°C
V
CC
= 1.8V to 3.6V
V
CC
= 1.8V to 4.25V
V
CC
= 1.8V to 4.25V
V
CC
= 2.0V to 4.25V
R_OUT, I
OUT
= 1.0mA
T_IN, EN, S
—
H
—
D
—
N
–
= 0V or V
CC
T_IN
T_IN, EN, S
—
H
—
D
—
N
–
S
—
H
—
D
—
N
–
= EN = 0V, all R_INs static
S
—
H
—
D
—
N
–
= 0V, EN = V
CC
, all R_INs static
R_OUT, 0V ≤ R_OUT ≤ V
CC
, EN = 0V
T_IN, EN, S
—
H
—
D
—
N
–
R_OUT, I
OUT
= -0.4mA
CONDITIONS
V±5 ±6Output Voltage Swing
kΩ357Input Resistance
V0.7Input Hysteresis
V
2.8
Input Threshold High
3.0
V
0.3
Input Threshold Low
0.4
V-25 +25Input Voltage Range
µA0.05 ±10Output Leakage Current
VV
CC
- 0.25 V
CC
- 0.08Output Voltage High
mA1.9 3.0Supply Current (Note 1)
V1.8 4.25Operating Voltage Range
V0.4Output Voltage Low
µA0.001 ±1Input Leakage Current
V0.1Input Hysteresis
V0.67 x V
CC
Input Logic Threshold High
0.04 10
µA
0.04 10
Shutdown Supply Current
V0.33 x V
CC
Input Logic Threshold Low
UNITSMIN TYP MAXPARAMETER
V
CC
= 0V, -2V < T_OUT < +2V
mA±24 ±100Output Short-Circuit Current
Ω300Output Resistance
DC CHARACTERISTICS
EIA/TIA-232E RECEIVER INPUTS
LOGIC
EIA/TIA-232E TRANSMITTER OUTPUTS
Note 1: Entire supply current for the circuit of Figure 1.