Datasheet

AD623
Rev. D | Page 3 of 24
SPECIFICATIONS
SINGLE SUPPLY
Typical @ 25°C single supply, V
S
= 5 V, and R
L
= 10 kΩ, unless otherwise noted.
Table 1.
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
=
0.05 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 %
Nonlinearity
G1 V
OUT
=
0.05 V to 3.5 V
G > 1 V
OUT
=
0.05 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 = 100 120 140 120 140 120 140 dB
G = 1000 120 140 120 140 120 140 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