AD8224 Analog Devices, AD8224 Datasheet - Page 7

• Manufacturer Part Number: AD8224
• Description: Precision, Dual-Channel, JFET Input Rail-to-Rail Instrumentation Amplifier
• Manufacturer: Analog Devices

Parameter
GAIN
INPUT
OUTPUT
POWER SUPPLY (PER AMPLIFIER)
TEMPERATURE RANGE
1
2
3
4
5
6
When the output sinks more than 4 mA, use a 47 pF capacitor in parallel with the load to prevent ringing. Otherwise, use a larger load, such as 10 kΩ.
Refers to the differential configuration shown in Figure 59.
Refer to Figure 11 and Figure 12 for the relationship between input current and temperature.
Differential and common-mode impedance can be calculated from the pin impedance: Z
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.
The AD8224 is characterized from −40°C to +125°C. See the Typical Performance Characteristics section for expected operation in that temperature range.
Gain Range
Gain Error
Nonlinearity
Gain vs. Temperature
Output Swing
Output Swing
Short-Circuit Current
Operating Range
Quiescent Current
Over Temperature
For Specified Performance
Operational
G = 1
G = 10
G = 100
G = 1000
G = 1
G = 10
G = 100
G = 1000
G = 1
G = 10
G = 100
G = 1000
G = 1
G > 10
Impedance (Pin to Ground)
Input Voltage Range
Over Temperature
Over Temperature
Over Temperature
6
5
4
G = 1 + (49.4 kΩ/R
V
V
R
R
R
R
R
R
R
R
T = −40°C to +85°C
Test Conditions
V
V
T = −40°C to +85°C
R
R
T = −40°C to +85°C
T = −40°C to +85°C
OUT
OUT
OUT
OUT
L
L
L
L
L
L
L
L
L
L
Rev. 0 | Page 7 of 28
= 10 kΩ
= 10 kΩ
= 10 kΩ
= 10 kΩ
= 2 kΩ
= 2 kΩ
= 2 kΩ
= 2 kΩ
= 2 kΩ
= 10 kΩ
= 0.3 V to 3.8 V for G > 1
= 0.3 V to 2.9 V for G = 1
= 0.3 V to 3.8 V for G > 1
= 0.3 V to 2.9 V for G = 1
DIFF
G
= 2(Z
)
PIN
); Z
CM
= Z
PIN
/2.
Min
1
−0.1
−0.1
0.25
0.3
0.15
0.2
+4.5
−40
−40
Typ
35
35
50
90
35
35
50
175
3
10
15
A Grade
4
||6
+V
+V
Max
1000
0.06
0.3
0.3
0.3
50
50
75
115
50
50
75
200
10
−50
4.75
4.70
4.85
4.80
+36
750
850
+85
+125
S
S
− 2
− 2.1 V
AD8224
Unit
V/V
%
%
%
%
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm/°C
ppm/°C
GΩ||pF
V
V
V
V
V
mA
V
μA
μA
°C
°C