Data Sheet

AD8027/AD8028

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

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Rev. E | 8 of 27

Figure 4. 8-Lead SOIC, AD8027 Pin Configuration

Table 5. 8-Lead SOIC, AD8027 Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 5

DNC

Do Not Connect. Do not connect to these pins.

2

−IN

Negative Input.

3

+IN

Positive Input.

4

−VS

Negative Supply.

6

VOUT

Output Voltage.

7

+VS

Positive Supply

8

DISABLE/SELECT

Power-Down/Select. The power-down function places the device into low power consumption mode. The select

function of this pin shifts the crossover point (where the NPN/PNP input differential pairs transition from one to the

other) closer to either the positive supply rail or the negative supply rail.

Figure 5. 6-Lead SOT-23, AD8027 Pin Configuration

Table 6. 6-Lead SOT-23, AD8027 Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VOUT

Output Voltage.

2

−VS

Negative Supply.

3

+IN

Positive Input.

4

−IN

Negative Input.

5

DISABLE/SELECT

Power-Down/Select. The power-down function places the device into low power consumption mode. The select

function of this pin shifts the crossover point (where the NPN/PNP input differential pairs transition from one to the

other) closer to either the positive supply rail or the negative supply rail.

6

+VS

Positive Supply.

Figure 6. 8-Lead SOIC, AD8028 Pin Configuration

Table 7. 8-Lead SOIC, AD8028 Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VOUTA

Output Voltage, Channel A.

2

−IN A

Negative Input, Channel A.

3

+IN A

Positive Input, Channel A.

4

−VS

Negative Supply.

5

+IN B

Positive Input, Channel B.

6

−IN B

Negative Input, Channel B.

7

VOUTB

Output Voltage, Channel B.

8

+VS

Positive Supply.