AD8270

Rev. 0 | Page 6 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

PIN 1

INDICATOR

1

–IN1A

2

–IN2A

3

+IN2A

4

+IN1A

11 –IN2B

12 –IN1B

10 +IN2B

9+IN1B

AD8270

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

−IN1A

10 kΩ Resistor Connected to Negative Terminal of Op Amp A.

2

−IN2A

10 kΩ Resistor Connected to Negative Terminal of Op Amp A.

3

+IN2A

10 kΩ Resistor Connected to Positive Terminal of Op Amp A.

4

+IN1A

10 kΩ Resistor Connected to Positive Terminal of Op Amp A.

5

REF1A

20 kΩ Resistor Connected to Positive Terminal of Op Amp A. Most configurations use this pin as a reference

voltage input.

6

REF2A

20 kΩ Resistor Connected to Positive Terminal of Op Amp A. Most configurations use this pin as a reference

voltage input.

7

REF2B

20 kΩ Resistor Connected to Positive Terminal of Op Amp B. Most configurations use this pin as a reference

voltage input.

8

REF1B

20 kΩ Resistor Connected to Positive Terminal of Op Amp B. Most configurations use this pin as a reference

voltage input.

9

+IN1B

10 kΩ Resistor Connected to Positive Terminal of Op Amp B.

10

+IN2B

10 kΩ Resistor Connected to Positive Terminal of Op Amp B.

11

−IN2B

10 kΩ Resistor Connected to Negative Terminal of Op Amp B.

12

−IN1B

10 kΩ Resistor Connected to Negative Terminal of Op Amp B.

13

Negative Supply.

14

OUTB

Op Amp B Output.

15

OUTA

Op Amp A Output.

16

Positive Supply.