ADM690–ADM695–SPECIFICATIONS
Parameter
BATTERY BACKUP SWITCHING
V
CC
Operating Voltage Range
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
V
BATT
Operating Voltage Range
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
V
OUT
Output Voltage
V
OUT
in Battery Backup Mode
Supply Current (Excludes I
OUT
)
Supply Current in Battery Backup Mode
Battery Standby Current
(+ = Discharge, – = Charge)
Battery Switchover Threshold
V
CC
– V
BATT
Battery Switchover Hysteresis
BATT ON Output Voltage
BATT ON Output Short Circuit Current
0.5
RESET AND WATCHDOG TIMER
Reset Voltage Threshold
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
Reset Threshold Hysteresis
Reset Timeout Delay
ADM690, ADM691, ADM692, ADM693
ADM694, ADM695
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET
Output Voltage @ V
CC
= +1 V
RESET, LOW LINE
Output Voltage
RESET, WDO
Output Voltage
Output Short Circuit Source Current
Output Short Circuit Sink Current
WDI Input Threshold
Logic Low
Logic High
WDI Input Current
POWER FAIL DETECTOR
PFI Input Threshold
PFI Input Current
PFO
Output Voltage
PFO
Short Circuit Source Current
PFO
Short Circuit Sink Current
CHIP ENABLE GATING
CE
IN
Threshold
3.0
CE
IN
Pull-Up Current
CE
OUT
Output Voltage
V
OUT
– 1.5
V
OUT
– 0.05
CE
Propagation Delay
5
3
3.5
1
3
25
Min
Typ
4.75
4.5
2.0
2.0
V
CC
– 0.05 V
CC
– 0.025
V
CC
– 0.5
V
CC
– 0.25
V
BATT
– 0.05 V
BATT
– 0.02
1
0.6
–0.1
–1.0
70
50
20
(V
CC
= Full Operating Range, V
BATT
= +2.8 V, T
A
= T
MIN
to
T
MAX
unless otherwise noted)
Max
Units
Test Conditions/Comments
5.5
5.5
4.25
4.0
V
V
V
V
V
V
V
mA
µA
µA
µA
mV
mV
mV
V
mA
µA
1.95
1
+0.02
+0.02
I
OUT
= 1 mA
I
OUT
≤
100 mA
I
OUT
= 250
µA,
V
CC
< V
BATT
– 0.2 V
I
OUT
= 100 mA
V
CC
= 0 V, V
BATT
= 2.8 V
5.5 V > V
CC
> V
BATT
+ 0.2 V
T
A
= +25°C
Power Up
Power Down
I
SINK
= 3.2 mA
BATT ON = V
OUT
= 4.5 V Sink Current
BATT ON = 0 V Source Current
0.3
35
1
25
4.5
4.25
4.65
4.4
40
50
200
1.6
100
4.73
4.48
V
V
mV
ms
ms
s
ms
Cycles
Cycles
ns
mV
V
V
V
V
µA
mA
V
V
µA
µA
V
nA
V
V
µA
mA
V
V
µA
V
V
V
ns
OSC SEL = HIGH, V
CC
= 5 V, T
A
= +25°C
OSC SEL = HIGH, V
CC
= 5 V, T
A
= +25°C
Long Period, V
CC
= 5 V, T
A
= +25°C
Short Period, V
CC
= 5 V, T
A
= +25°C
Long Period
Short Period
V
IL
= 0.4, V
IH
= 3.5 V
I
SINK
= 10
µA,
V
CC
= 1 V
I
SINK
= 1.6 mA, V
CC
= 4.25 V
I
SOURCE
= 1
µA,
V
CC
= 5 V
I
SINK
= 1.6 mA, V
CC
= 5 V
I
SOURCE
= 1
µA,
V
CC
= 4.25 V
35
140
1.0
70
3840
768
50
70
280
2.25
140
4097
1025
200
0.4
0.4
25
4
3.5
V
CC
= 5 V
1
0.8
3.5
–50
1.25
–25
3.5
1
20
–15
1.3
±
0.01
50
WDI = V
OUT
, T
A
= +25°C
WDI = 0 V, T
A
= +25°C
V
CC
= +5 V
I
SINK
= 3.2 mA
I
SOURCE
= 1
µA
PFI = Low,
PFO
= 0 V
PFI = High,
PFO
= V
OUT
V
IL
V
IH
I
SINK
= 3.2 mA
I
SOURCE
= 3.0 mA
I
SOURCE
= 1
µA,
V
CC
= 0 V
1.35
+25
0.4
25
3
25
0.8
0.4
9
–2–
REV. A
AD [ ANALOG DEVICES ]
