AD8231ACPZ-R7 datasheet(9/20 Pages) AD

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AD8231

Rev. 0 | Page 9 of 20

TYPICAL PERFORMANCE CHARACTERISTICS

INSTRUMENTATION AMPLIFIER PERFORMANCE CURVES

0V, 4.96V

0V, 2.96V

0V, 0.04V

2.92V, 1.5V

4.92V, 2.5V

5V SINGLE SUPPLY

3V SINGLE SUPPLY

OUTPUT VOLTAGE (V)

Figure 3. Input Common-Mode Range vs. Output Voltage, VREF = 0 V

05.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

OUTPUT VOLTAGE (V)

5V SINGLE SUPPLY

3V SINGLE SUPPLY

0.02V, 2.22V

0.02V, 0.78V

1.5V, 4.96V

0.02V, 4.22V

4.98V, 3.22V

4.98V, 1.78V

1.5V, 2.96V

2.98V, 2.22V

2.98V, 0.78V

1.5V, 0.04V

Figure 4. Input Common-Mode Range vs. Output Voltage, VREF = 1.5 V

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

OUTPUT VOLTAGE (V)

5V SINGLE SUPPLY

3V SINGLE

SUPPLY

0.02V, 1.72V

2.5V, 4.96V

0.02V, 3.72V

4.98V, 3.72V

4.98V,1.28V

2.5V, 2.96V

2.98V, 2.72V

2.98V, 0.28V

2.5V, 0.04V

0.02V, 1.28V

Figure 5. Input Common-Mode Range vs. Output Voltage, VREF = 2.5 V

–10

–20

–30

–40

100

10M

100k

10k

FREQUENCY (Hz)

G = +128

G = +64

G = +32

G = +16

G = +8

G = +4

G = +2

G = +1

Figure 6. Gain vs. Frequency

140

120

100

10k

100k

FREQUENCY (Hz)

G = +1

G = +8

G = +128

Figure 7. CMRR vs. Frequency

G = +1, 1µV/DIV

G = +128, 0.4µV/DIV

1s/DIV

Figure 8. 0.1 Hz to 10 Hz Noise

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