Precision 20 MHz CMOS Rail-to-Rail

Input/Output Operational Amplifiers

AD8616/AD8618

Rev. A

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FEATURES

Low offset voltage: 65 µV max

Single-supply operation: 2.7 V to 5.5 V

Low noise: 8 nV/√Hz

Wide bandwidth: >20 MHz

Slew rate: 12 V/µs

High output current: 150 mA

No phase reversal

Low input bias current: 1 pA

Low supply current: 2 mA

Unity gain stable

APPLICATIONS

Barcode scanners

Battery-powered instrumentation

Multipole filters

Sensors

ASIC input or output amplifier

Audio

Photodiode amplification

PIN CONFIGURATIONS

OUT A

1

–IN A

2

+IN A

3

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

AD8616

TOP VIEW

(Not to Scale)

Figure 1. 8-Lead MSOP (RM-8)

OUT A

1

–IN A

2

+IN A

3

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

AD8616

TOP VIEW

(Not to Scale)

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

OUT A

–

IN A

+IN A

V+

+IN B

–

IN B

OUT B

–

IN D

+IN D

V–

OUT D

–

IN C

OUT C

+IN C

14

8

1

7

AD8618

Figure 3. 14-Lead TSSOP (RU-14)

–IN A

+IN A

V+

+IN B

–IN B

OUT B

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

OUT A

AD8618

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Figure 4. 14-Lead SOIC (R-14)

GENERAL DESCRIPTION

The AD8616/AD8618 are dual/quad, rail-to-rail, input and

output, single-supply amplifiers featuring very low offset

voltage, wide signal bandwidth, and low input voltage and

current noise. The parts use a patented trimming technique that

achieves superior precision without laser trimming. The

AD8616/AD8618 are fully specified to operate from 2.7 V to

5 V single supplies.

The combination of 20 MHz bandwidth, low offset, low noise,

and very low input bias current make these amplifiers useful in

a wide variety of applications. Filters, integrators, photodiode

amplifiers, and high impedance sensors all benefit from the

combination of performance features. AC applications benefit

from the wide bandwidth and low distortion. The AD8616/

AD8618 offer the highest output drive capability of the

other low impedance applications.

Applications for the parts include portable and low powered

instrumentation, audio amplification for portable devices,

portable phone headsets, bar code scanners, and multipole

filters. The ability to swing rail to rail at both the input and

output enables designers to buffer CMOS ADCs, DACs, ASICs,

and other wide output swing devices in single-supply systems.

The AD8616/AD8618 are specified over the extended industrial

(–40°C to +125°C) temperature range. The AD8616 is available

in 8-lead MSOP and narrow SOIC surface mount packages; the

MSOP version is available in tape and reel only. The AD8618 is

available in 14-lead SOIC and 14-lead TSSOP packages.