Datasheet

REV. B
–2–
AD7306–SPECIFICATIONS
(V
CC
= +5 V 6 5%, C1 = C2 = C3 = C4 = 0.1 mF. All specifications T
MIN
to
T
MAX
unless otherwise noted.)
Parameter Min Typ Max Units Test Conditions/Comments
RS-232 DRIVER
TTL Input Logic Low, V
INL
0.8 V
TTL Input Logic High, V
INH
2.0 V
Input Logic Current 0.1 ±10 µAV
IN
= 0 V to V
CC
RS-232 High Level Output Voltage 5.0 7.3 V R
L
= 3 kΩ
RS-232 Low Level Output Voltage –5.0 –6.5 V R
L
= 3 kΩ
Output Short Circuit Current ±5 ±12 mA V
OUT
= 0 V, T
A
= 0°C to +70°C
Slew Rate 8 20 30 V/µsC
L
= 50 pF, R
L
= 3 kΩ
4V/µsC
L
= 2500 pF, R
L
= 3 kΩ
Output Resistance (Powered Down) 300 10M Ω V
CC
= 0 V, V
OUT
= ±3 V
RS-232 RECEIVER
Input Voltage Range –15 +15 V
RS-232 Input Threshold Low 0.8 1.3 V
RS-232 Input Threshold High 1.7 2.4 V
RS-232 Input Hysteresis 0.1 0.4 1.0 V
RS-232 Input Resistance 3 5 7 kΩ
TTL Output Voltage Low, V
OL
0.2 0.4 V I
OUT
= +4 mA
TTL Output Voltage High, V
OH
3.5 4.8 V I
OUT
= –4 mA
RS-422 DRIVER
TTL Input Logic Low, V
INL
0.8 V
TTL Input Logic High, V
INH
2.0 V
Logic Input Current 0.1 ±10 µAV
IN
= 0 V to V
CC
Differential Output Voltage 5.0 V V
CC
= 5 V, R
L
Diff = ∞; Figure 3
2VR
L
Diff = 100 Ω; Figure 3
Common-Mode Output Voltage 3 V
∆|V
OUT
| for Complementary O/P States 0.2 V R
L
Diff = 100 Ω
Output Short Circuit Current 35 150 mA 0 V ≤ V
CMR
≤ +7 V
RS-422 RECEIVER
Common-Mode Voltage Range ±7 V Typical RS-422 Input Voltage <5 V
Differential Input Threshold Voltage –0.2 +0.2 V
Input Voltage Hysteresis 70 mV V
CM
= 0 V
Input Resistance 3 5 7 kΩ
TTL Output Voltage Low, V
OL
0.2 0.4 V I
OUT
= +4.0 mA
TTL Output Voltage High, V
OH
3.5 4.8 V I
OUT
= –4.0 mA
232/
422 SEL Input
Input Logic Low, V
INL
0.8 V
Input Logic High, V
INH
2.0 V
Logic Input Current 0.1 ±10 µAV
IN
= 0 V to V
CC
POWER SUPPLY CURRENT
I
CC
10 15 mA Outputs Unloaded
CHARGE PUMP VOLTAGE GENERATOR
V+ Output Voltage 9 V RS-232 Output Unloaded;
See Typical Performance Curves
V– Output Voltage –9 V RS-232 Outputs Unloaded;
See Typical Performance Curves
Generator Rise Time 200 µs
Specifications subject to change without notice.