Data Sheet AD8214
Rev. A | Page 3 of 16
SPECIFICATIONS
V
S
= 13.5 V, unless otherwise noted.
Table 1.
VOLTAGE OFFSET
Offset Voltage (RTI)
T
A
= 25°C, voltage at –IN decreasing
±3 mV
Over Temperature (RTI)
±8 mV
Offset Drift ±10 µV/°C
HYSTERESIS T
A
= 25°C, voltage at –IN increasing 5 12 mV
INPUT
Input Impedance
Differential 2 MΩ
Common Mode V
S
= 5 V to 65 V 5 MΩ
Differential Maximum voltage between +IN and –IN 500 mV
Common Mode
V
S
– 0.9 V
S
+ 0.2 V
OUTPUT
Output Current R
OUT
= 3.3 kΩ, output high 0.8 1 1.2 mA
R
OUT
= 3.3 kΩ, output low ±5 µA
OUT
OD
20% to 80%, R
OUT
= 3.3 kΩ, V
OD
=
20 mV, 50 mV step 75 ns
Fall Time 20% to 80%, R
OUT
= 3.3 kΩ, V
OD
= 5 mV, 50 mV step 110 ns
20% to 80%, R
OUT
= 3.3 kΩ, V
OD
=
10 mV, 50 mV step 100 ns
REGULATOR
Nominal Value T
A
= 25
C, voltage from V
REG
to V
S
2.43 V
T
A
= –40
C to +125
C
±5 %
DYNAMIC RESPONSE 50 mV to 250 mV step
Propagation Delay
1
5 mV ≤ V
OD
≤ 15 mV, output low to high 90 ns
15 mV ≤ V
OD
≤ 30 mV, output low to high 80 ns
OD
≥ 30 mV, output low to high
INPUT-REFERRED DYNAMIC ERROR
2
15 mV
POWER SUPPLY
Operating Range
Maximum Voltage GND to V
S
65 V
S
Output Voltage Range
3
With respect to V
REG
2 62.5 V
Supply Current Output low 240 µA
Output high
1.2 mA
TEMPERATURE RANGE FOR SPECIFIED PERFORMANCE
1
V
OD
represents the overdrive voltage, or the amount of voltage by which the threshold point has been exceeded.
2
See the Input-Referred Dynamic Error section.
3
The voltage at OUT must not be allowed to exceed the V
REG
voltage, which is always 2.4 V less than the supply. For example, when the supply voltage is 5 V and the
output current is 1 mA, the load resistor must not be more than (5 V – 2.4 V)/{1 mA × (1 + 20%)}, or 2.17 kΩ, to ensure the signal does not exceed 2.6 V. As the supply
increases, the output signal also can be increased, by the same amount.
