Datasheet

AD8021
Rev. F | Page 6 of 28
AD8021AR/AD8021ARM
Parameter Conditions Min Typ Max Unit
DC PERFORMANCE
Input Offset Voltage 0.4 1.0 mV
Input Offset Voltage Drift T
MIN
to T
MAX
0.8 μV/°C
Input Bias Current +Input or −input 7.5 10.3 μA
Input Bias Current Drift 10 nA/°C
Input Offset Current 0.1 0.5 ±μA
Open-Loop Gain 72 76 dB
INPUT CHARACTERISTICS
Input Resistance 10 MΩ
Common-Mode Input Capacitance 1 pF
Input Common-Mode Voltage Range 0.9 to 4.6 V
Common-Mode Rejection Ratio 1.5 V to 3.5 V −84 −98 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing 1.25 to 3.38 1.10 to 3.60 V
Linear Output Current 30 mA
Short-Circuit Current 50 mA
Capacitive Load Drive for 30% Overshoot V
O
= 50 mV p-p/1 V p-p 10/120 pF
DISABLE CHARACTERISTICS
Off Isolation f = 10 MHz −40 dB
Turn-On Time V
O
= 0 V to 1 V, 50% logic to 50% output 45 ns
Turn-Off Time V
O
= 0 V to 1 V, 50% logic to 50% output 50 ns
DISABLE Voltage—Off/On
V
DISABLE
− V
LOGIC REFERENCE
1.55/1.70 V
Enabled Leakage Current LOGIC REFERENCE = 0.4 V 70 μA
DISABLE = 4.0 V
2 μA
Disabled Leakage Current LOGIC REFERENCE = 0.4 V 30 μA
DISABLE = 0.4 V
33 μA
POWER SUPPLY
Operating Range ±2.25 ±5 ±12.0 V
Quiescent Current Output enabled 6.7 7.5 mA
Output disabled 1.2 1.5 mA
+Power Supply Rejection Ratio V
CC
= 4.5 V to 5.5 V, V
EE
= 0 V −74 −82 dB
−Power Supply Rejection Ratio V
CC
= 5 V, V
EE
= −0.5 V to +0.5 V −76 −84 dB