Datasheet

AD8224 Data Sheet
Rev. C | Page 4 of 28
A Grade B Grade
Parameter Test Conditions Min Typ Max Min Typ Max Unit
GAIN G = 1 + (49.4 kΩ/R
G
)
Gain Range 1 1000 1 1000 V/V
Gain Error V
OUT
= ±10 V
G = 1 0.06 0.04 %
G = 10 0.3 0.2 %
G = 100 0.3 0.2 %
G = 1000 0.3 0.2 %
Gain Nonlinearity V
OUT
= −10 V to +10 V
G = 1 R
L
= 10 kΩ 8 15 8 15 ppm
G = 10 R
L
= 10 kΩ 5 10 5 10 ppm
G = 100 R
L
= 10 kΩ 15 25 15 25 ppm
G = 1000 R
L
= 10 kΩ 100 150 100 150 ppm
G = 1 R
L
= 2 kΩ 15 20 15 20 ppm
G = 10 R
L
= 2 kΩ 12 20 12 20 ppm
G = 100 R
L
= 2 kΩ 35 50 35 50 ppm
G=1000 R
L
= 2 kΩ 180 250 180 250 ppm
Gain vs. Temperature
G = 1 3 10 2 5 ppm/°C
G > 10 −50 −50 ppm/°C
INPUT
Impedance (Pin to Ground)
4
10
4
||5 10
4
||5 GΩ||pF
Input Operating Voltage Range
5
V
S
= ±2.25 V to ±18 V
for dual supplies
−V
S
− 0.1 +V
S
− 2 −V
S
− 0.1 +V
S
− 2 V
Over Temperature T = −40°C to +85°C −V
S
− 0.1 +V
S
− 2.1 −V
S
− 0.1 +V
S
− 2.1 V
OUTPUT
Output Swing R
L
= 2 kΩ −14.25 +14.25 −14.25 +14.25 V
Over Temperature T = −40°C to +85°C −14.3 +14.1 −14.3 +14.1 V
Output Swing R
L
= 10 kΩ −14.7 +14.7 −14.7 +14.7 V
Over Temperature T = −40°C to +85°C −14.6 +14.6 −14.6 +14.6 V
Short-Circuit Current 15 15 mA
POWER SUPPLY
Operating Range ±2.25
6
±18 ±2.25
6
±18 V
Quiescent Current (Per Amplifier) 750 800 750 800 μA
Over Temperature T = −40°C to +85°C 850 900 850 900 μA
TEMPERATURE RANGE
For Specified Performance −40 +85 −40 +85 °C
Operational
7
−40 +125 −40 +125 °C
1
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.
2
Refers to the differential configuration shown in Figure 63.
3
Refer to Figure 14 and Figure 15 for the relationship between input current and temperature.
4
Differential and common-mode input impedance can be calculated from the pin impedance: Z
DIFF
= 2(Z
PIN
); Z
CM
= Z
PIN
/2.
5
The AD8224 can operate up to a diode drop below the negative supply; however, the bias current increases sharply. The input voltage range reflects the maximum
allowable voltage where the input bias current is within the specification.
6
At this supply voltage, ensure that the input common-mode voltage is within the input voltage range specification.
7
The AD8224 is characterized from −40°C to +125°C. See the Typical Performance Characteristics section for expected operation in this temperature range.