MAX3325CAI-T Maxim Integrated, MAX3325CAI-T Datasheet - Page 2

• Manufacturer Part Number: MAX3325CAI-T
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3325r

Specifications of MAX3325CAI-T

• Data Rate: 250 Kbps
• Operating Supply Voltage: 3 V to 3.6 V
• Supply Current: 2 mA
• Operating Temperature Range: - 40 C to + 85 C
• Number Of I/os: 2 / 2
• Propagation Delay Time Ns: 300 ns

ABSOLUTE MAXIMUM RATINGS
V
LCD, REF-, TEMP to GND .............................-6V to (V
V+ to GND (Note 1) ..................................................-0.3V to +7V
V- to GND (Note 1) ...................................................+0.3V to -7V
V+ to |V-| (Note 1) ................................................................+13V
REF+, FB, R_OUT to GND ............................-0.3V to (V
Input Voltages
Output Voltages
3V Dual RS-232 Transceiver with
LCD Supply and Contrast Controller
ELECTRICAL CHARACTERISTICS
(V
are at V
Note 1: V+ and V- can have maximum magnitudes of +7V, but their absolute difference cannot exceed 13V.
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.
2
DD
DC CHARACTERISTICS
DIGITAL-TO-ANALOG CONVERTER
TEMPERATURE SENSOR
POSITIVE LINEAR REGULATOR
NEGATIVE LINEAR REGULATOR—LCD BIAS
V
V
V
Resolution
Full-Scale Voltage
Zero-Scale Voltage
Output Impedance
TEMP Output
TEMP Voltage Temperature
Coefficient
REG Output Voltage
Line Regulation
Short-Circuit Current
Feedback Regulation Point
Input Leakage Current (Note 2)
LCD Load Regulation (Note 3)
DD
T_OUT, SDLCD, SD232, UP, DOWN to GND.......-0.3V to +6V
R_IN to GND ....................................................................±25V
T_OUT to GND.................................................................±13V
R_OUT to GND..........................................-0.3V to (V
REG to GND .........................................................-0.3V to +6V
DD
L
DD
, V
_______________________________________________________________________________________
Supply Current
= +3.0V to +3.6V, V
Supply Current
Shutdown Supply Current
L
DD
to GND ........................................................-0.3V to +6V
PARAMETER
= +3.3V, T
A
= +25°C.)
L
= +3.3V, circuit and components of Figure 1, T
No load, V
No load, V
SD232, SDLCD = GND; all input pins = GND or V
V
Guaranteed monotonic
No load
No load
0 < V
T
I
1 transmitter loaded with
5kΩ, T
3V < V
V
V
DD
TEMP
A
FB
LCD
= +25°C
= V
= 0, CMOS input
DAC
= -4.0V, load = 0 to -3mA
< 22µA
A
DD
L
= +25°C
= 3.3V; T
DD
DD
< V
< 3.6V
= V
= V
REF
DD
L
L
L
L
+, I
+ 0.3V)
+ 0.3V)
+ 0.3V)
= 3.3V, T
= 3.3V, T
A
CONDITIONS
= +25°C
DAC
≤ 10µA
A
A
V
11mA
V
7mA
= +25°C
= +25°C
CC
CC
Short-Circuit Duration (T_OUT, REF+, REF-) .............Continuous
Continuous Output Current
Continuous Power Dissipation
Operating Temperature Range
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
≥ 3.15V, I
≥ 3.0V, I
REG.................................................................................75mA
LCD .................................................................................40mA
28-Pin SSOP (derate 9.52mW/°C above +70°C) .........762mW
28-Pin NDIP (derate 14.3mW/°C above +70°C) ........1143mW
MAX3325C_I .......................................................0°C to +70°C
MAX3325E_I ....................................................-40°C to +85°C
A
= T
REG
REG
MIN
= 0 to
to T
DD
= 0 to
;
MAX
, unless otherwise noted. Typical values
1.13
MIN
-15
4.7
-20
-10
35
TYP
-3.2
0.5
0.5
1.2
-18
50
50
20
2
6
0
5
5
6
0
0
MAX
1.27
5.3
10
10
10
65
50
20
10
4
UNITS
mV/°C
Bits
mA
mV
mV
mA
mV
mV
µA
µA
kΩ
nA
V
V
V