ADM696/ADM697–SPECIFICATIONS
P
arameter
V
CC
Operating Voltage Range
V
BATT
Operating Voltage Range
BATTERY BACKUP SWITCHING (ADM696)
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
Low Line Threshold (LL
IN
)
Reset Timeout Delay
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET
Output Voltage @ V
CC
= +1 V
RESET,
RESET
Output Voltage
1.25
35
1.0
70
4032
960
50
Min
3.0
2.0
V
CC
– 0.05
V
CC
– 0.5
V
BATT
– 0.05
Typ
(V
CC
= Full Operating Range, V
BATT
= +2.8 V, T
A
= T
MIN
to T
MAX
unless otherwise noted.)
Max
5.5
V
CC
– 0 3
Units
V
V
V
V
V
mA
µA
µA
µA
mV
mV
mV
V
mA
µA
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
= 1.6 mA
BATT ON = V
OUT
= 2.4 V Sink Current
BATT ON = V
OUT
, V
CC
= 0 V, Source Current
Test Conditions/Comments
V
CC
– 0.025
V
CC
– 0.25
V
BATT
– 0.02
1
1.95
0.6
1
+0.02
+0.02
70
50
20
0.4
7
1
1.3
50
1.6
100
25
1.35
70
2.25
140
4097
1025
200
0.4
0.4
0.4
–0.1
–1
4
3.5
LOW LINE, WDO
Output Voltage
Output Short Circuit Source Current
WDI Input Threshold
Logic Low
Logic High
WDI Input Current
POWER FAIL DETECTOR
PFI Input Threshold
PFI–LL
IN
Threshold Difference
PFI Input Current
LL
IN
Input Current
PFO
Output Voltage
PFO
Short Circuit Source Current
CHIP ENABLE GATING (ADM697)
CE
IN
Threshold
3.0
CE
IN
Pullup Current
CE
OUT
Output Voltage
V
CC
– 0.5
CE
Propagation Delay
OSCILLATOR
OSC IN Input Current
OSC SEL Input Pullup Current
OSC IN Frequency Range
OSC IN Frequency with Ext. Capacitor
5
±
2
5
0
4
250
25
3
0.4
3.5
1
3
25
0.8
3.5
–50
1.2
–50
–25
–50
3.5
1
20
–15
1.3
±
15
±
0.01
±
0.01
50
V
V
CC
= +5 V, +3 V
ms
OSC SEL = HIGH, V
CC
= 5 V, T
A
= +25°C
s
Long Period, V
CC
= 5 V, T
A
= +25°C
ms
Short Period, V
CC
= 5 V, T
A
= +25°C
Cycles Long Period
Cycles Short Period
ns
V
IL
= 0.4, V
IH
= 3.5 V, V
CC
= 5 V
mV
I
SINK
= 10
µA,
V
CC
= 1 V
V
I
SINK
= 400
µA,
V
CC
= 2 V, V
BATT
= 0 V
V
I
SINK
= 1.6 mA, 3 V < V
CC
< 5.5 V
V
I
SOURCE
= 1
µA,
V
CC
= 5 V
V
I
SINK
= 1.6 mA,
V
I
SOURCE
= 1
µA,
V
CC
= 5 V
µA
V
CC
= 5 V
1
V
V
µA
WD1 = V
OUT
, (V
CC
) T
A
= +25°C
µA
WD1 = 0 V, T
A
= +25°C
V
mV
nA
nA
V
V
µA
V
V
µA
V
V
ns
µA
µA
kHz
kHz
V
CC
= +3 V, +5 V
V
CC
= +3 V, +5 V
1.4
+50
+25
+50
0.4
25
0.8
3
I
SINK
= 1.6 mA
I
SOURCE
= 1
µA,
V
CC
= 5 V
PFI = Low,
PFO
= 0 V
V
IL
V
IH
, V
CC
= 5 V
I
SINK
= 1.6 mA
I
SOURCE
= 800
µA
OSC SEL = 0 V
OSC SEL = 0 V, C
OSC
= 47 pF
NOTE
1
WDI is a three-level input which is internally biased to 38% of V
CC
and has an input impedance of approximately 125 kΩ.
Specifications subject to change without notice.
–2–
REV. 0
AD [ ANALOG DEVICES ]
