Analog Devices AD5100, Руководство пользователя, Страница: 6 / 37

AD5100
Rev. A | Page 5 of 36
Parameter Symbol Conditions Min Typ
1
Max Unit
LOW VOLTAGE MONITORING INPUTS
V
3MON
, V
4MON
V
3MON
Voltage Range V
3MON
2.0 5.5 V
Input Resistance R
IN_V3MON
85 130 180 kΩ
V
3MON
Threshold Tolerance
(See Figure 10 and Table 6)
ΔV
3MON
T
A
= 25°C −2.5 +2.5 %
T
A
= −40°C to +85°C −2.75 +2.75 %
T
A
= −40°C to +125°C −3 +3 %
V
3MON
Hysteresis V
3_HYSTERESIS
1.2 %
V
4MON
Voltage Range
4
V
4MON
0.9 30 V
Input Resistance R
IN_V4MON
500 675 860 kΩ
V
4MON
Threshold Tolerance
(See Figure 12 and Table 6)
ΔV
4MON
T
A
= 25°C −2.5 +2.5 %
T
A
= −40°C to +85°C −2.75 +2.75 %
T
A
= −40°C to +125°C −3 +3 %
V
4MON
Hysteresis V
4_HYSTERESIS
5 %
RESET
RESET Hold Time Tolerance
(See , , and ) Figure 10 Figure 12 Table 8
Δt
RS_HOLD
T
A
= 25°C; does not apply to
Code 0x6 and Code 0x7
−10 +10 %
T
A
= −40°C to +125°C; does not
apply to Code 0x6 and Code 0x7
−17 +17 %
V
3MON
/V
4MON
-to-RESET Delay t
RS_DELAY
60 μs
RESET Output Voltage High
V
OH
V
3MON
≥ 4.38 V, I
SOURCE
= 120 μA V
3MON
− 1.5 V
2.7 V < V
3MON
≤ 4.38 V,
I
SOURCE
= 30 μA
0.8 × V
3MON
V
2.3 V < V
3MON
≤ 2.7 V,
I
SOURCE
= 20 μA
0.8 × V
3MON
V
1.8 V ≤ V
3MON
≤ 2.3 V,
I
SOURCE
= 8 μA
0.8 × V
3MON
V
RESET Output Voltage Low V
OL
V
3MON
> 4.38 V, I
SINK
= 3.2 mA 0.4 V
V
3MON
< 4.38 V, I
SINK
= 1.2 mA 0.3 V
RESET Output Short-Circuit Current 5 I
SOURCE
RESET = 0, V
3MON
= 5.5 V
825 μA
RESET = 0, V
3MON
= 3.6 V
400 μA
Glitch Immune Time t
GLITCH
50 μs
V
4OUT
Maximum Output V
4OUT_MAX
Open drain 5.5 V
V
4OUT
Propagation Delay t
V4OUT_DELAY
70 μs
V
4OUT
Maximum Frequency f
V4OUT
Applies to RESET disabled only
10 kHz
WDI (WATCHDOG INPUT)
WDI Programmable Timeout Tolerance
(see Figure 13 and Table 8)
Δt
WD
T
A
= 25°C −10 +10 %
T
A
= −40°C to +125°C −17 +17 %
WDI Pulse Width t
WDI
50 ns
Watchdog Initiated RESET Pulse Width
t
WDR
When no WDI t
WD
/50 ms
Watchdog Initiated SHDN t
WD_SHDN
When no WDI activity > 4 t
WD
1 sec
WDI Input Voltage Low V
IL_WD
0.3 × V
3MON
V
WDI Input Voltage High V
IH_WD
0.7 × V
3MON
V
WDI Input Current WDI = V
3MON
160 μA
WDI = 0 −20 μA
MR (MANUAL RESET) INPUT
MR Input Voltage Low V
IL_MR
0.3 × V
3MON
V
MR Input Voltage High V
IH_MR
0.7 × V
3MON
V
Input Current 1 μA
MR Pulse Width t
MR
1 μs
MR Deglitching
t
MR_GLITCH
100 ns
MR-to-RESET Delay
t
MR_DELAY
1 μs