ADA4896-2 AD [Analog Devices], ADA4896-2 Datasheet

ADA4896-2

Manufacturer Part Number

ADA4896-2

Description

1 nV/?Hz, Low Power, Rail-to-Rail Output Amplifiers

Manufacturer

AD [Analog Devices]

Datasheet

1.ADA4896-2.pdf (28 pages)

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FEATURES

Low wideband noise

Low 1/f noise

Low distortion: −115 dBc @ 100 kHz, V

Low power: 3 mA/amp

Low input offset voltage: 0.5 mV maximum

High speed

Rail-to-rail output

Wide supply range: 3 V to 10 V

Disable feature (ADA4897-1)

APPLICATIONS

Low noise preamplifier

Ultrasound amplifiers

PLL loop filters

High performance ADC drivers

DAC buffers

GENERAL DESCRIPTION

The

rail-to-rail output, high speed voltage feedback amplifiers

that have a quiescent current of 3 mA. With the 1/f noise of

2.4 nV/√Hz at 10 Hz and a spurious-free dynamic range of

−80 dBc at 2 MHz, the

solution in a variety of applications, including ultrasound, low

noise preamplifiers, and drivers of high performance ADCs.

The Analog Devices, Inc., proprietary next generation SiGe

bipolar process and innovative architecture enable such high

performance amplifiers.

TheADA4896-2/ADA4897-1

120 V/μs slew rate, and settle to 0.1% in 45 ns. With a wide

supply voltage range (3 V to 10 V), the ADA4896-2/ADA4897-1

are ideal candidates for systems that require high dynamic

range, precision, and high speed.

The

packages. The

6-lead SOT-23 packages. Both the

work over the extended industrial temperature range of −40°C

to +125°C.

Rev. 0

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.

1 nV/√Hz

2.8 pA/√Hz

2.4 nV/√Hz @ 10 Hz

230 MHz, −3 dB bandwidth (G = +1)

120 V/μs slew rate

45 ns settling time to 0.1%

ADA4896-2/ADA4897-1

ADA4896-2

ADA4897-1

is available in 8-lead LFCSP and 8-lead MSOP

ADA4896-2/ADA4897-1

is available in 8-lead SOIC and

have 230 MHz bandwidth,

are unity gain stable, low noise,

ADA4896-2

OUT

= 2 V p-p

and

are an ideal

ADA4897-1

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

Table 1. Other Low Noise Amplifiers

Part Number

AD797

AD8021

AD8099

AD8045

ADA4899-1

ADA4898-1/

ADA4898-2

Table 2. Complementary ADCs

Part Number

AD7944

AD7985

AD7986

Rail-to-Rail Output Amplifiers

= ±5V

FUNCTIONAL BLOCK DIAGRAM

ADA4896-2/ADA4897-1

–V

@ 1 kHz

0.9

1.4

0.9

–IN

+IN

Bits

Figure 2. Voltage Noise vs. Frequency

Figure 1. 8-Lead SOIC (ADA4897-1)

(nV/√Hz)

1 nV/√Hz, Low Power,

100

FREQUENCY (Hz)

@ 100 kHz

0.9

2.1

0.95

0.9

Speed (MSPS)

2.5

(nV/√Hz)

10k

DISABLE

OUT

BW (MHz)

490

510

1000

600

100k

www.analog.com

Power (mW)

15.5

Supply

Voltage (V)

10 to 30

5 to 24

5 to 12

3.3 to 12

5 to 12

10 to 32

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