Datasheet

ADM705/ADM706/ADM707/ADM708
Rev. G | Page 3 of 12
SPECIFICATIONS
V
CC
= 4.75 V to 5.5 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
POWER SUPPLY
V
CC
Operating Voltage Range 1.0 5.5 V
Supply Current 190 250 μA
LOGIC OUTPUT
Reset Threshold 4.5 4.65 4.75 V ADM705/ADM707
4.25 4.40 4.50 V ADM706/ADM708
Reset Threshold Hysteresis 40 mV
RESET PULSE WIDTH 160 200 280 ms
RESET OUTPUT VOLTAGE
V
CC
− 1.5 V I
SOURCE
= 800 μA
0.4 V I
SINK
= 3.2 mA
0.3 V V
CC
= 1 V, I
SINK
= 50 μA
0.3 V V
CC
= 1.2 V, I
SINK
= 100 μA
RESET OUTPUT VOLTAGE V
CC
− 1.5 V ADM707/ADM708, I
SOURCE
= 800 μA
0.4 V ADM707/ADM708, I
SINK
= 1.2 mA
WATCHDOG TIMEOUT PERIOD (t
WD
) 1.00 1.60 2.25 sec V
IL
= 0.4 V, V
IH
= V
CC
× 0.8, WDI = V
CC
WDI Pulse Width (t
WP
) 50 ns
WATCHDOG INPUT
WDI Input Threshold
Logic Low 0.8 V
Logic High 3.5 V
WDI Input Current 50 150 μA WDI = 0 V
−150 −50 μA WDI = 0 V
WDO OUTPUT VOLTAGE
V
CC
− 1.5 V I
SOURCE
= 800 μA
0.4 V I
SINK
= 1.2 mA
MANUAL RESET INPUT
MR Pull-Up Current
100 250 600 μA
MR
= 0 V
MR Pulse Width
150 ns
MR INPUT THRESHOLD
Logic Low
0.8 V
Logic High
2.0 V
MR TO RESET OUTPUT DELAY
250 ns
POWER-FAIL INPUT
PFI Input Threshold 1.2 1.25 1.3 V
PFI Input Current −25 +0.01 +25 nA
PFO OUTPUT VOLTAGE
V
CC
− 1.5 V I
SOURCE
= 800 μA
0.4 V I
SINK
= 3.2 mA