ADM3311EARSZ Analog Devices Inc, ADM3311EARSZ Datasheet - Page 9

• Manufacturer Part Number: ADM3311EARSZ
• Description: IC TXRX RS-232 3:5 2.7V 28SSOP
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM3311EARSZ

• Number Of Drivers/receivers: 3/5
• Protocol: RS232
• Voltage - Supply: 2.7 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Device Type: Transceiver
• Ic Interface Type: RS232
• No. Of Drivers: 1
• Supply Voltage Range: 2.7V To 3.6V
• Driver Case Style: SSOP
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 4. Pin Function Descriptions
Mnemonic
V
V+
V−
GND
C1+, C1−
C2+, C2−
C3+, C3−
T
T
R
R
EN
SD
NC
Table 5. ADM3307E Truth Table
SD
0
0
1
1
Table 7. ADM3311 Truth Table
SD
0
0
1
1
IN
OUT
CC
IN
OUT
EN
0
1
0
1
EN
0
1
0
1
Normal Operation
Normal Operation
Shutdown
Shutdown
Normal Operation
Shutdown
Shutdown
Status
Status
Receivers
Disabled
Function
Ground Pin. Must be connected to 0 V.
No Connect.
Power Supply Input 2.7 V to 3.6 V.
Internally Generated Positive Supply, 7.25 V (6.5 V Nominal for ADM3310E, ADM3315E). Capacitor C4 is connected between
V
Internally Generated Positive Supply, −7.25 V (−6.5 V Nominal for ADM3310E, ADM3315E). Capacitor C5 is connected between
GND and V−.
External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors up to 1 μF
can be used.
External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors up to 1 μF
can be used.
External Capacitor 3 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors up to 1 μF
can be used.
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to V
each input.
Transmitter (Driver) Outputs. Typically ±5.5 V (±6.4 V for ADM3311E and ADM3312E).
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor (22 kΩ for ADM3315E) to GND is
connected on each of these inputs.
Receiver Outputs. These are TTL/CMOS levels.
Receiver Enable. A high level three-states all the receiver outputs.
Shutdown Control. A high level disables the charge pump and reduces the quiescent current to less than 1 μA. All
transmitters and most receivers are disabled. One receiver remains active in shutdown (two receivers are active in shutdown
for the ADM3310E).
For ADM3307E, R
For ADM3310E, R
For ADM3311E, R
For ADM3312E, R
For ADM3315E, R
CC
and V+.
OUT
OUT
OUT
OUT
OUT
T
Enabled
Enabled
Disabled
Disabled
T
Enabled
Enabled
Disabled
Disabled
3 is active in shutdown.
4 and R
5 is active in shutdown.
3 is active in shutdown.
3 is active in shutdown.
OUT
OUT
1–5
1–3
OUT
5 are active in shutdown.
R
Disabled
Disabled
Disabled
Enabled
R
Enabled
Disabled
Disabled
Disabled
OUT
OUT
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
1–2
1–4
R
Enabled
Disabled
Enabled
Disabled
R
Enabled
Disabled
Enabled
Disabled
OUT
OUT
3
5
Rev. H | Page 9 of 24
Table 6. ADM3310E Truth Table
SD
0
0
1
1
Table 8. ADM3312E/ADM3315E Truth Table
SD
0
0
1
1
EN
0
1
0
1
1
0
1
EN
0
Status
Normal Operation
Receivers
Disabled
Shutdown
Shutdown
Status
Normal Operation
Normal Operation
Shutdown
Shutdown
T
Enabled
Enabled
Disabled
Disabled
T
Enabled
Enabled
Disabled
Disabled
OUT
OUT
1–3
1–3
CC
R
Enabled
Disabled
Disabled
Disabled
R
Enabled
Disabled
Disabled
Disabled
is connected on
OUT
OUT
1–3
1–2
R
Enabled
Disabled
Enabled
Disabled
R
Enabled
Disabled
Enabled
Disabled
OUT
OUT
4–5
3