AD8224ACPZ-R7 datasheet(7/28 Pages) AD

7 / 28 page

AD8224

Rev. 0 | Page 7 of 28

A Grade

Parameter

Test Conditions

Min

Typ

Max

Unit

GAIN

G = 1 + (49.4 kΩ/RG)

Gain Range

1000

V/V

Gain Error

VOUT = 0.3 V to 2.9 V for G = 1

VOUT = 0.3 V to 3.8 V for G > 1

G = 1

0.06

G = 10

0.3

G = 100

0.3

G = 1000

0.3

Nonlinearity

VOUT = 0.3 V to 2.9 V for G = 1

VOUT = 0.3 V to 3.8 V for G > 1

G = 1

RL = 10 kΩ

ppm

G = 10

RL = 10 kΩ

ppm

G = 100

RL = 10 kΩ

ppm

G = 1000

RL = 10 kΩ

115

ppm

G = 1

RL = 2 kΩ

ppm

G = 10

RL = 2 kΩ

ppm

G = 100

RL = 2 kΩ

ppm

G = 1000

RL = 2 kΩ

175

200

ppm

Gain vs. Temperature

G = 1

ppm/°C

G > 10

−50

ppm/°C

INPUT

Impedance (Pin to Ground)4

104||6

GΩ||pF

Input Voltage Range5

−0.1

+VS − 2

Over Temperature

T = −40°C to +85°C

−0.1

+VS − 2.1 V

OUTPUT

Output Swing

RL = 2 kΩ

0.25

4.75

Over Temperature

T = −40°C to +85°C

0.3

4.70

Output Swing

RL = 10 kΩ

0.15

4.85

Over Temperature

T = −40°C to +85°C

0.2

4.80

Short-Circuit Current

POWER SUPPLY (PER AMPLIFIER)

Operating Range

+4.5

+36

Quiescent Current

750

μA

Over Temperature

T = −40°C to +85°C

850

μA

TEMPERATURE RANGE

For Specified Performance

−40

+85

°C

Operational6

−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 59.

3 Refer to Figure 11 and Figure 12 for the relationship between input current and temperature.

4 Differential and common-mode impedance can be calculated from the pin impedance: ZDIFF = 2(ZPIN); ZCM = ZPIN/2.

5 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.

6 The AD8224 is characterized from −40°C to +125°C. See the Typical Performance Characteristics section for expected operation in that temperature range.

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