AD8224 Datasheet, PDF (4/27 Pages) Analog Devices – Precision, Dual-Channel, JFET Input Rail-to-Rail Instrumentation Amplifier

AD8224
Preliminary Technical Data
Parameter
G = 1000
G=1
G = 10
G = 100
Gain vs. Temperature
G=1
G > 10
INPUT
Impedance (Pin to Ground)³
Input Operating Voltage Range⁴
Over Temperature
OUTPUT
Output Swing
Over Temperature
Output Swing
Over Temperature
Short-Circuit Current
REFERENCE INPUT
RIN
IIN
Voltage Range
Gain to Output
POWER SUPPLY (PER AMPLIFIER)
Operating Range
Quiescent Current
Over Temperature
TEMPERATURE RANGE
For Specified Performance
Operational⁶
Test Conditions
RL = 10 kΩ
RL = 2 kΩ
RL = 2 kΩ
RL = 2 kΩ
VS = ±2.25 V to ±18 V for dual supplies
T = −40°C to +85°C
RL = 2 kΩ
T = −40°C to +85°C
RL = 10 kΩ
T = −40°C to +85°C
VIN+, VIN− = 0 V
T = −40°C to +85°C
A Grade
Min
Typ
Max
Unit
400
500
ppm
10
15
ppm
10
15
ppm
50
75
ppm
3
10
ppm/°C
−50
ppm/°C
−VS − 0.1
−VS − 0.1
10⁴||5
+VS − 2
+VS − 2.1
GΩ||pF
V
V
−14.3
−14.3
−14.7
−14.6
15
+14.3
V
+14.1
V
+14.7
V
+14.6
V
mA
40
kΩ
70
μA
−VS
+VS
V
1 ± 0.0001
V/V
±2.25⁵
±18
V
750
μA
850
μA
−40
+85
°C
−40
+125
°C
1 _{Refers to differential configuration shown in Figure 64.}
2 _{Please refer to Figure 16 and Figure 17 for the relationship between input current and temperature.}
3 _{Differential and common-mode input impedance can be calculated from the pin impedance: ZDIFF = 2(ZPIN); ZCM = ZPIN/2.}
4 _{The AD8224 can operate up to a diode drop below the negative supply but the bias current increases sharply. The input voltage range reflects the maximum}
allowable voltage where the input bias current is within the specification.
5 _{At this supply voltage, ensure that the input common-mode voltage is within the input voltage range specification.}
6 _{The AD8224 is characterized from −40°C to +125°C. See the Typical Performance Characteristics section for expected operation in this temperature range.}
Rev. PrB | Page 4 of 27