AD8221 查看數據表（PDF） - Analog Devices

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AD8221

Precision Instrumentation Amplifier

Analog Devices 

AD8221

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

–IN 1

RG 2

RG 3

+IN 4

AD8221

8 +VS

7 VOUT

6 REF

5 –VS

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 5. Pin Function Descriptions

Pin No. Mnemonic Description

1

−IN

Negative Input Terminal.

2

RG

3

RG

4

+IN

Gain Setting Terminal. Place resistor across the RG pins to set the gain. G = 1 + (49.4 kΩ/RG).

Gain Setting Terminal. Place resistor across the RG pins to set the gain. G = 1 + (49.4 kΩ/RG).

Positive Input Terminal.

5

−VS

6

REF

Negative Power Supply Terminal.

Reference Voltage Terminal. Drive this terminal with a low impedance voltage source to level-shift the output.

7

VOUT

8

+VS

Output Terminal.

Positive Power Supply Terminal.

Rev. C | Page 9 of 24

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