ADM3222 AD [Analog Devices], ADM3222 Datasheet - Page 7

• Manufacturer Part Number: ADM3222
• Description: Low Power, +3.3 V, RS-232 Line Drivers/Receivers
• Manufacturer: AD [Analog Devices]

Transmitter (Driver) Section
The drivers convert 3.3 V logic input levels into RS-232 output
levels. With V
output voltage swing is typically ± 6 V.
0.210 (5.33)
0.160 (4.06)
0.115 (2.93)
DOUBLER
0.006 (0.15)
0.002 (0.05)
SEATING
VOLTAGE
MAX
PLANE
FROM
16-Lead Thin Shrink Small Outline (TSSOP)
0.022 (0.558)
0.014 (0.356)
OSCILLATOR
GND
V
INTERNAL
CC
OSCILLATOR
GND
16
INTERNAL
0.0256
1
(0.65)
CC
BSC
V
16
1
+
PIN 1
PIN 1
= +3.3 V and driving an RS-232 load, the
0.840 (21.34)
0.745 (18.92)
0.201 (5.10)
0.193 (4.90)
S2
0.100
(2.54)
0.0118 (0.30)
0.0075 (0.19)
S1
BSC
16-Lead Plastic DIP
S2
S1
C1
0.070 (1.77)
0.045 (1.15)
9
8
(RU-16)
(N-16)
C2
+
9
8
0.0433
(1.10)
MAX
0.060 (1.52)
0.015 (0.38)
0.280 (7.11)
0.240 (6.10)
+
0.0035 (0.090)
S4
S3
0.0079 (0.20)
SEATING
PLANE
0.130
(3.30)
MIN
S4
S3
C3
C4
+
8°
0°
0.325 (8.26)
0.300 (7.62)
+
0.028 (0.70)
0.020 (0.50)
V+ = 2V
V
CC
0.015 (0.381)
0.008 (0.204)
Dimensions shown in inches and (mm).
GND
V– = –(V+)
OUTLINE DIMENSIONS
CC
0.195 (4.95)
0.115 (2.93)
Receiver Section
The receivers are inverting level-shifters that accept RS-232
input levels and translate them into 3 V logic output levels.
The inputs have internal 5 kΩ pull-down resistors to ground and
are also protected against overvoltages of up to ± 30 V. Uncon-
nected inputs are pulled to 0 V by the internal 5 kΩ pull-down
resistor. This, therefore, results in a Logic 1 output level for
unconnected inputs or for inputs connected to GND.
The receivers have Schmitt trigger inputs with a hysteresis level
of 0.4 V. This ensures error-free reception for both noisy inputs
and for inputs with slow transition times.
HIGH BAUD RATE
The ADM3202E/ADM3222E feature high slew rates permitting
data transmission at rates well in excess of the EIA/RS-232E
specifications. RS-232 voltage levels are maintained at data rates
up to 460 kbps even under worst case loading conditions. This
allows for high speed data links between two terminals or indeed
it is suitable for the new generation I
requires data rates of 230 kbps. The slew rate is internally con-
trolled to less than 30 V/µs in order to minimize EMI interference.
0.0118 (0.30)
0.0040 (0.10)
0.0098 (0.25)
0.0040 (0.10)
0.1574 (4.00)
0.1497 (3.80)
SEATING
PLANE
0.0500
(1.27)
16
BSC
ADM3202/ADM3222/ADM1385
1
PIN 1
0.0500
0.4133 (10.50)
0.3977 (10.00)
(1.27)
16
BSC
1
PIN 1
16-Lead Narrow Body SOIC
16-Lead Wide Body SOIC
0.0192 (0.49)
0.0138 (0.35)
0.3937 (10.00)
0.3859 (9.80)
0.0192 (0.49)
0.0138 (0.35)
0.1043 (2.65)
0.0926 (2.35)
9
8
(R-16A)
(R-16)
SEATING
PLANE
0.0688 (1.75)
0.0532 (1.35)
8
9
0.2440 (6.20)
0.2284 (5.80)
0.0099 (0.25)
0.0075 (0.19)
SDN
0.0125 (0.32)
0.0091 (0.23)
modem standards which
8
0
0.0196 (0.50)
0.0099 (0.25)
0.0500 (1.27)
0.0160 (0.41)
8
0
0.0291 (0.74)
0.0098 (0.25)
0.0500 (1.27)
0.0157 (0.40)
x 45
x 45