Zero-Drift, Single-Supply, Rail-to-Rail

Input/Output Operational Amplifier

AD8628/AD8629/AD8630

Rev. E

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© 2005 Analog Devices, Inc. All rights reserved.

FEATURES

Lowest auto-zero amplifier noise

Low offset voltage: 1 μV

Input offset drift: 0.002 μV/°C

Rail-to-rail input and output swing

5 V single-supply operation

High gain, CMRR, and PSRR: 120 dB

Very low input bias current: 100 pA max

Low supply current: 1.0 mA

Overload recovery time: 10 μs

No external components required

APPLICATIONS

Automotive sensors

Pressure and position sensors

Strain gage amplifiers

Medical instrumentation

Thermocouple amplifiers

Precision current sensing

Photodiode amplifier

PIN CONFIGURATIONS

OUT

1

V–

2

+IN

3

V+

5

–IN

4

AD8628

TOP VIEW

(Not to Scale)

Figure 1. 5-Lead TSOT (UJ-5)

and 5-Lead SOT-23 (RT-5)

NC

1

–IN

2

+IN

3

V–

4

NC

8

V+

7

OUT

6

NC

5

NC = NO CONNECT

AD8628

TOP VIEW

(Not to Scale)

Figure 2. 8-Lead SOIC_N (R-8)

OUT A

1

–IN A

2

+IN A

3

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

AD8629

TOP VIEW

(Not to Scale)

Figure 3. 8-Lead SOIC_N (R-8)

OUT A

1

–IN A

2

+IN A

3

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

AD8629

TOP VIEW

(Not to Scale)

Figure 4. 8-Lead MSOP (RM-8)

1

2

3

4

5

6

7

AD8630

–IN A

+IN A

V+

OUT B

–IN B

+IN B

OUT A

14

13

12

11

10

9

8

–IN D

+IN D

V–

OUT C

–IN C

+IN C

OUT D

TOP VIEW

(Not to Scale)

Figure 5. 14-Lead SOIC_N (R-14)

OUT A

1

–IN A

2

+IN A

3

V+

4

OUT D

14

–IN D

13

+IN D

12

V–

11

+IN B

5

+IN C

10

–IN B

6

–IN C

9

OUT B

7

OUT C

8

AD8630

TOP VIEW

(Not to Scale)

Figure 6. 14-Lead TSSOP (RU-14)