MAX3325 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX3325 Datasheet PDF : 12 Pages
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3V Dual RS-232 Transceiver with
LCD Supply and Contrast Controller
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +3.0V to +3.6V, VL = +3.3V, circuit and components of Figure 1, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at VDD = +3.3V, TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LCD Line Regulation
LCD Adjustment Range
3V < VDD < 3.6V, VLCD = -4.0V
Load = -3mA
10
mV
-5
+2
V
POSITIVE REFERENCE VOLTAGE
Output Voltage
RREF+ = 10kΩ
Load Regulation
Load = 12µA to 62µA (sourcing current)
1.16 1.21 1.26
V
4
mV
Short-Circuit Current
5
mA
NEGATIVE REFERENCE VOLTAGE
Output Voltage
No load
-1.14 -1.21 -1.28
V
Load Regulation
Load = 0 to 50µA (sinking current)
35
mV
Short-Circuit Current
LOGIC INPUTS (SD232, SDLCD, T1IN, T2IN, UP, DOWN)
0.125
mA
Logic Threshold High
2
V
Logic Threshold Low
0.8
V
Input Current
RECEIVER OUTPUTS
VIN = GND or VDD
-1
1
µA
Output Voltage Low
Output Voltage High
RECEIVER INPUTS
ISINK = 1.6mA
ISOURCE = 1.0mA
0.8 · VL
0.4
V
V
Input Voltage Range
-25
+25
V
Input Threshold Low
Input Threshold High
Input Hysteresis
Input Resistance
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Short-Circuit Current
TA = +25°C, VDD = 3.3V
TA = +25°C, VDD = 3.3V
-15V < VR_IN < +15V, TA = +25°C
All outputs loaded with 3kΩ to ground
VDD = VL = V+ = V- = 0, VOUT = ±2V
0.6
V
2.4
V
0.3
V
3
5
7
kΩ
±5
±5.4
V
300 10M
Ω
±35 ±60
mA
Output Leakage Current
VDD = 0 or 3V to 3.6V, VOUT = ±12V, transmitters
disabled
±25
µA
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