Datasheet

AD623 Data Sheet
Rev. G | Page 6 of 32
DUAL SUPPLIES
Typical at 25°C dual supply, V
S
= ±5 V, and R
L
= 10 kΩ, unless otherwise noted.
Table 3.
Test Conditions/
Comments
AD623ANZ,
AD623ARZ AD623ARM
AD623BNZ,
AD623BRZ
Parameter 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
=
−4.8 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 %
Nonlinearity
G1 V
OUT
=
−4.8 V to +3.5 V
G > 1 V
OUT
=
−4.8 V to +4.5 V
G = 1 to 1000 50 50 50 ppm
Gain vs. Temperature
G = 1 5 10 5 10 5 10 ppm/°C
G > 1
1
50 50 50 ppm/°C
VOLTAGE OFFSET
Total RTI error =
V
OSI
+ V
OSO
/G
Input Offset, V
OSI
25 200 200 500 25 100 µV
Over Temperature
350
650
160
µV
Average Tempco 0.1 2 0.1 2 0.1 1 µV/°C
Output Offset, V
OSO
200 1000 500 2000 200 500 µV
Over Temperature 1500 2600 1100 µV
Average Tempco 2.5 10 2.5 10 2.5 10 µV/°C
Offset Referred to the
Input vs. Supply (PSR)
G = 1 80 100 80 100 80 100 dB
G = 10 100 120 100 120 100 120 dB
G = 100 100 130 100 130 100 130 dB
G = 1000 100 130 100 130 100 130 dB
INPUT CURRENT
Input Bias Current 17 25 17 25 17 25 nA
Over Temperature 27.5 27.5 27.5 nA
Average Tempco
25
25
25
pA/°C
Input Offset Current 0.25 2 0.25 2 0.25 2 nA
Over Temperature 2.5 2.5 2.5 nA
Average Tempco 5 5 5 pA/°C
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
= +2.5 V to ±6 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