AD8224 Datasheet, PDF (6/27 Pages) Analog Devices – Precision, Dual-Channel, JFET Input Rail-to-Rail Instrumentation Amplifier

AD8224
Preliminary Technical Data
VS + = 5 V, VS− = 0 V, VREF = 2.5 V, TA = +25°C, G = 1, RL = 2 kΩ, unless otherwise noted.
Table 5. Single-Ended and Differential¹ Output Configuration
Parameter
COMMON-MODE REJECTION RATIO (CMRR)
CMRR DC to 60 Hz with 1 kΩ Source Imbalance
G=1
G = 10
G = 100
G = 1000
CMRR at 5 kHz
G=1
G = 10
G = 100
G = 1000
NOISE
Voltage Noise, 1 kHz
Input Voltage Noise, eni
Output Voltage Noise, eno
RTI, 0.1 Hz to 10 Hz
G=1
G = 1000
Current Noise
VOLTAGE OFFSET
Input Offset, VOSI
Average TC
Output Offset, VOSO
Average TC
Offset RTI vs. Supply (PSR)
G=1
G = 10
G = 100
G = 1000
INPUT CURRENT (PER CHANNEL)
Input Bias Current
Over Temperature²
Input Offset Current
Over Temperature²
GAIN
Gain Range
Gain Error
G=1
G = 10
G = 100
G = 1000
Nonlinearity
G=1
G = 10
G = 100
Test Conditions
Min
VCM = 0 to 2.5 V
78
94
94
94
74
84
84
84
RTI noise = √(eni2 + (eno/G)²)
VIN+, VIN− = 0 V, VREF = 0 V
VIN+, VIN− = 0 V, VREF = 0 V
f = 1 kHz
RTI VOS = (VOSI) + (VOSO/G)
T = −40°C to +85°C
T = −40°C to +85°C
86
96
96
96
T = −40°C to +85°C
T = −40°C to +85°C
G = 1 + (49.4 kΩ/RG)
1
VOUT = 0.3 V to 2.9 V for G = 1
VOUT = 0.3 V to 3.8 V for G > 1
VOUT = 0.3 V to 2.9 V for G = 1
VOUT = 0.3 V to 3.8 V for G > 1
RL = 10 kΩ
RL = 10 kΩ
RL = 10 kΩ
Rev. PrB | Page 6 of 27
A Grade
Typ
Max Unit
dB
dB
dB
dB
dB
dB
dB
dB
14
nV√Hz
90
nV√Hz
5
μV p-p
0.8
μV p-p
1
fA/√Hz
300 μV
10
μV/°C
800 μV
10
μV/°C
dB
dB
dB
dB
25
pA
300
pA
2
pA
5
pA
1000 V/V
0.06 %
0.3
%
0.3
%
0.3
%
35
50
ppm
35
50
ppm
50
75
ppm