Datasheet

Data Sheet ADM811/ADM812
Rev. G | Page 3 of 12
SPECIFICATIONS
V
CC
= full operating range; T
A
= T
MIN
to T
MAX
; V
CC
typical = 5 V for L/M models, 3.3 V for T/S models, 3 V for R model, 2.5 V for Z
models, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
SUPPLY
Voltage 1.0 5.5 V T
A
= 0°C to 70°C
1.2 V T
A
= −40°C to +85°C
Current 8 15 µA V
CC
< 5.5 V, ADM81xL/M, I
OUT
= 0 mA
5 10 µA V
CC
< 3.6 V, ADM81xR/S/T/Z, I
OUT
= 0 mA
RESET VOLTAGE THRESHOLD
ADM81xL 4.54 4.63 4.72 V T
A
= 25°C
ADM81xL 4.50 4.75 V T
A
= −40°C to +85°C
ADM81xM 4.30 4.38 4.46 V T
A
= 25°C
ADM81xM 4.25 4.50 V T
A
= −40°C to +85°C
ADM81xT 3.03 3.08 3.14 V T
A
= 25°C
ADM81xT 3.00 3.15 V T
A
= −40°C to +85°C
ADM81xS 2.88 2.93 2.98 V T
A
= 25°C
ADM81xS 2.85 3.00 V T
A
= −40°C to +85°C
ADM81xR
2.58
2.63
2.68
V
T
A
= 25°C
ADM81xR 2.55 2.70 V T
A
= −40°C to +85°C
ADM81xZ 2.28 2.32 2.35 V T
A
= 25°C
ADM81xZ 2.25 2.38 V T
A
= −40°C to +85°C
RESET THRESHOLD TEMPERATURE COEFFICIENT 30 ppm/°C
V
CC
TO RESET/
RESET
DELAY 40 µs V
OD
= 125 mV, ADM81xL/M
20 µs V
OD
= 125 mV, ADM81xR/S/T/Z
RESET ACTIVE TIMEOUT PERIOD
140
560
ms
V
CC
= V
TH(MAX)
300
700
ms
ADM811-3T only
MANUAL RESET
Minimum Pulse Width 10 µs
Glitch Immunity 100 ns
RESET/
RESET
Propagation Delay 0.5 µs
Pull-Up Resistance 10 20 30 kΩ
The Manual Reset Circuit Acts On
An Input Rising Above 2.3 V V
CC
> V
TH(MAX)
, ADM81xL/M
An Input Falling Below 0.8 V V
CC
> V
TH(MAX)
, ADM81xL/M
An Input Rising Above 0.7 × V
CC
V V
CC
> V
TH(MAX)
, ADM81xR/S/T/Z
An Input Falling Below 0.25 × V
CC
V V
CC
> V
TH(MAX)
, ADM81xR/S/T/Z
RESET/
RESET
Output Voltage
Low (ADM812R/S/T/Z) 0.3 V V
CC
= V
TH(MAX)
, I
SINK
= 1.2 mA
Low (ADM812L/M) 0.4 V V
CC
= V
TH(MAX)
, I
SINK
= 3.2 mA
High (ADM812R/S/T/Z/L/M) 0.8 × V
CC
V 1.8 V < V
CC
< V
TH(MIN)
, I
SOURCE
= 150 µA
Low (ADM811R/S/T/Z) 0.3 V V
CC
= V
TH(MIN),
I
SINK
= 1.2 mA
Low (ADM811L/M)
0.4
V
V
CC
= V
TH(MIN)
, I
SINK
= 3.2 mA
Low (ADM811R/S/T/Z/L/M) 0.3 V V
CC
> 1.0 V, I
SINK
= 50 µA
High (ADM811R/S/T/Z) 0.8 × V
CC
V V
CC
> V
TH(MAX)
, I
SOURCE
= 500 µA
High (ADM811L/M) V
CC
× 1.5 V V
CC
> V
TH(MAX)
, I
SOURCE
= 800 µA