Datasheet

AD623
Rev. D | Page 4 of 24
AD623A AD623ARM AD623B
Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
INPUT
Input Impedance
Differential 2||2 2||2 2||2 GΩ||pF
Common-Mode 2||2 2||2 2||2 GΩ||pF
Input Voltage Range
2
V
S
= 3 V to 12 V
(−V
S
) −
0.15
(+V
S
) −
1.5
(−V
S
) −
0.15
(+V
S
) −
1.5
(−V
S
) −
0.15
(+V
S
) −
1.5
V
Common-Mode Rejection
at 60 Hz with 1 kΩ Source
Imbalance
G = 1 V
CM
= 0 V to 3 V 70 80 70 80 77 86 dB
G = 10 V
CM
= 0 V to 3 V 90 100 90 100 94 100 dB
G = 100 V
CM
= 0 V to 3 V 105 110 105 110 105 110 dB
G = 1000 V
CM
= 0 V to 3 V 105 110 105 110 105 110 dB
OUTPUT
Output Swing R
L
= 10 kΩ 0.01
(+V
S
) −
0.5
0.01
(+V
S
) −
0.5
0.01
(+V
S
) −
0.5
V
R
L
= 100 kΩ 0.01
(+V
S
) −
0.15
0.01
(+V
S
) −
0.15
0.01
(+V
S
) −
0.15
V
DYNAMIC RESPONSE
Small Signal −3 dB Bandwidth
G = 1 800 800 800 kHz
G = 10 100 100 100 kHz
G = 100 10 10 10 kHz
G = 1000 2 2 2 kHz
Slew Rate 0.3 0.3 0.3 V/μs
Settling Time to 0.01% V
S
= 5 V
G = 1 Step size: 3.5 V 30 30 30 μs
G = 10
Step size: 4 V,
V
CM
= 1.8 V
20 20 20 μs
1
Does not include effects of external resistor, R
G
.
2
One input grounded. G = 1.
DUAL SUPPLIES
Typical @ 25°C dual supply, V
S
= ±5 V, and R
L
= 10 kΩ, unless otherwise noted.
Table 2.
AD623A AD623ARM AD623B
Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
GAIN
G =
1 + (100 k/R
G
)
Gain Range 1 1000 1 1000 1 1000
Gain Error
1
G1 V
OUT
=
−4.8 V to +3.5 V
G > 1 V
OUT
=
0.05 V to 4.5 V
G = 1 0.03 0.10 0.03 0.10 0.03 0.05 %
G = 10 0.10 0.35 0.10 0.35 0.10 0.35 %
G = 100 0.10 0.35 0.10 0.35 0.10 0.35 %
G = 1000 0.10 0.35 0.10 0.35 0.10 0.35 %