MAX3218CAP datasheet(2/12 Pages) MAXIM

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1µA Supply Current, 1.8V to 4.25V-Powered

RS-232 Transceiver with AutoShutdown™

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1, VCC = 1.8V to 4.25V, C1 = 0.47µF, C2 = C3 = C4 = 1µF, L1 = 15µH, TA = TMIN to TMAX, unless otherwise noted.

Typical values are at VCC = 3.0V, TA = +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

VCC ....................................................................-0.3V to +4.6V

V+ .......................................................... (VCC - 0.3V) to +7.5V

V- .......................................................................+0.3V to -7.4V

VCC to V- ..........................................................................+12V

LX ................................................................-0.3V to (1V + V+)

Input Voltages

T_IN, FORCEON, FORCEOFF ............................ -0.3V to +7V

R_IN .................................................................................±25V

Output Voltages

T_OUT.............................................................................±15V)

R_OUT ....................................................-0.3V to (VCC + 0.3V)

Short-Circuit Duration, R_OUT, T_OUT to GND ....... Continuous

Continuous Power Dissipation (TA = +70°C)

Plastic DIP (derate 11.11mW/°C above +70°C) ..........889mW

SSOP (derate 8.00mW/°C above +70°C) ..................640mW

Operating Temperature Ranges

MAX3218C_ P ................................................... 0°C to +70°C

MAX3218E_ P ................................................. -40°C to +85°C

Storage Temperature Range ........................... -65°C to +150°C

Lead Temperature (soldering, 10sec) ........................... +300°C

VCC = 3.0V, TA = +25°C, all R_IN open,

FORCEON = GND, FORCEOFF = VCC

IOUT = -0.4mA,

|R_IN| > 2.8V

IOUT = 1.0mA, -0.3V < R_IN < 0.3V

1µA supply current, Figure 4a

Figure 4a

R_OUT, IOUT = 1.0mA

T_IN, FORCEON = FORCEOFF = 0V or VCC

T_IN, FORCEON, FORCEOFF

FORCEOFF = GND, TA = +25°C, VCC = 3.0V

R_OUT, 0V

≤ R_OUT ≤ VCC,

FORCEON = FORCEOFF = 0V

T_IN, FORCEON, FORCEOFF

R_OUT, IOUT = -0.4mA

CONDITIONS

VCC - 0.25

INVALID Output Low Voltage

0.4

-0.3

0.3

Receiver Input Thresholds

Transmitters Disabled

2.8

Receiver Input Thresholds,

Transmitters Enabled

µA

0.05

±10

Output Leakage Current

VCC - 0.25

VCC - 0.08

Output Voltage High

µA

1.0

Supply Current, AutoShutdown™

1.8

4.25

Operating Voltage Range

0.4

Output Voltage Low

µA

0.001

±1

Input Leakage Current

0.67 x VCC

Input Logic Threshold High

1.0

0.33 x VCC

Input Logic Threshold Low

UNITS

MIN

TYP

MAX

PARAMETER

FORCEON = FORCEOFF = VCC = 3.0V, no load

2.0

3.0

Supply Current,

AutoShutdown™ Disabled

Supply Current, Shutdown

µA

INVALID Output High Voltage

DC CHARACTERISTICS

AUTOSHUTDOWN (FORCEON = GND, FORCEOFF = VCC)

LOGIC INPUTS AND RECEIVER OUTPUTS

Positive threshold

Negative threshold

-2.8

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