High Gain Bandwidth Product

AD8067

FEATURES

• FET input amplifier: 0.6 pA input bias current

• Stable for gains ≥8

• High speed

• 54 MHz, –3 dB bandwidth (G = +10)

• 640 V/µs slew rate

• Low noise

• 6.6 nV/√Hz

• 0.6 fA/√Hz

• Low offset voltage (1.0 mV max)

• Wide supply voltage range: 5 V to 24 V

• No phase reversal

• Low input capacitance

• Single-supply and rail-to-rail output

• Excellent distortion specs: SFDR 95 dBc @ 1 MHz

• High common-mode rejection ratio: –106 dB

• Low power: 6.5 mA typical supply current

• Low cost

• Small packaging: SOT-23-5

APPLICATIONS

• Photodiode preamplifier

• Precision high gain amplifier

• High gain, high bandwidth composite amplifier

GENERAL DESCRIPTION

The AD8067 Fast FET amp is a voltage feedback amplifier with

FET inputs offering wide bandwidth (54 MHz @ G = +10) and high

slew rate (640 V/µs). The AD8067 is fabricated in a proprietary,

dielectrically isolated eXtra Fast Complementary Bipolar process

(XFCB) that enables high speed, low power, and high performance

FET input amplifiers.

The AD8067 is designed to work in applications that require high

speed and low input bias current, such as fast photodiode

preamplifiers. As required by photodiode applications, the laser

trimmed AD8067 has excellent dc voltage offset (1.0 mV max)

and drift (15 µV/°C max).

CONNECTION DIAGRAM

5

4

1

2

3

–IN

+IN

SOT-23-5 (RT-5)

Figure 1. Connection Diagram (Top View)

The FET input bias current (5 pA max) and low voltage noise

(6.6 nV/√Hz) also contribute to making it appropriate for precision

applications. With a wide supply voltage range (5 V to 24 V) and

rail-to-rail output, the AD8067 is well suited to a variety of

applications that require wide dynamic range and low distortion.

The AD8067 amplifier consumes only 6.5 mA of supply current,

while capable of delivering 30 mA of load current and driving

capacitive loads of 100 pF. The AD8067 amplifier is available in a

SOT-23-5 package and is rated to operate over the industrial

temperature range, –40°C to +85°C.

FREQUENCY – MHz

28

8

10

12

14

16

18

20

22

24

26

0.1

1

10

100

G = +20

G = +10

G = +8

Figure 2. Small Signal Frequency Response

Rev. 0

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However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

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registered trademarks are the property of their respective companies.

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