ADA4891-1ARJZ Analog Devices, ADA4891-1ARJZ Datasheet

ADA4891-1ARJZ

Manufacturer Part Number

ADA4891-1ARJZ

Description

Manufacturer

Analog Devices

Datasheet

1.ADA4891-1ARJZ.pdf (20 pages)

Specifications of ADA4891-1ARJZ

Notes

NEW

Date_code

11+

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FEATURES

Low cost

High speed and fast settling

Video specifications (G = +2, R

Single-supply operation

Low distortion: 79 dBc SFDR @ 1 MHz

Linear output current: 150 mA @ −50 dBc

Low power of 4.4 mA per amplifier

APPLICATIONS

Imaging

Consumer video

Active filters

Coaxial cable drivers

Clock buffers

Photodiode preamp

Contact image sensor and buffers

GENERAL DESCRIPTION

The ADA4891-1 (single) and ADA4891-2 (dual) are CMOS, high

speed amplifiers that offer high performance at a low cost. The

amplifiers feature true single-supply capability, with an input

voltage range that extends 300 mV below the negative rail.

In spite of their low cost, the ADA4891 family provides high

performance and versatility. The rail-to-rail output stage enables

the output to swing within 50 mV of each rail, enabling maximum

dynamic range.

The ADA4891 family of amplifiers are ideal for imaging applications,

such as consumer video, CCD buffers, and contact image sensor

buffers. Low distortion and fast settling time also make them

ideal for active filter applications.

The ADA4891-1/ADA4891-2 are available in a wide variety of

packages. The ADA4891-1 is available in 8-lead SOIC and

5-lead SOT-23 packages. The ADA4891-2 is available in 8-lead

SOIC and 8-lead MSOP packages. The amplifiers are specified to

operate over the extended temperature range of −40°C to +125°C.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. 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 or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

−3 dB bandwidth: 240 MHz (G = +1)

Slew rate: 170 V/μs

Settling time to 0.1%: 28 ns

0.1 dB gain flatness: 25 MHz

Differential gain error: 0.05%

Differential phase error: 0.25°

Wide supply range: 2.7 V to 5.5 V

Output swings to within 50 mV of supply rails

= 150 Ω)

One Technology Way,

Tel: 781.329.4700

Fax: 781.461.3113

Low Cost CMOS, High Speed,

–10

–1

–2

–3

–4

–5

–6

–7

–8

–9

Figure 4. Large Signal Frequency Response vs. Gain, V

0.1

Figure 3. 8-Lead SOIC (R-8) and 8-Lead MSOP (RM-8)

OUT

= +5V

= 150Ω

= 2V p-p

CONNECTION DIAGRAMS

Rail-to-Rail Amplifiers

OUT1

–V

+IN1

–IN1

–IN

+IN

Figure 2. 5-Lead SOT-23 (RJ-5)

–V

ADA4891-1/ADA4891-2

P.O. Box 9106, Norwood, MA 020

OUT

–V

+IN

Figure 1. 8-Lead SOIC (R-8)

NC = NO CONNECT

ADA4891-2

FREQUENCY (MHz)

ADA4891-1

DA4891-1

G = +2

= 604Ω

G = +5

= 604Ω

OUT

–IN2

+IN2

OUT

–IN

100

G = +1

www.analog.com

= 0Ω

62-9106, U.S.A.

= 5 V

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