ada4897-2 Analog Devices, Inc., ada4897-2 Datasheet

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ada4897-2

Manufacturer Part Number
ada4897-2
Description
1 Nv/√hz, Low Power, Rail-to-rail Output Amplifiers
Manufacturer
Analog Devices, Inc.
Datasheet

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Preliminary Technical Data
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
Output disable feature
APPLICATIONS
Low noise preamplifier
Ultrasound amplifiers
PLL Loop filters
High performance ADC drivers
DAC buffers
GENERAL DESCRIPTION
The
output, high speed voltage feedback amplifier that has 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
including ultrasound, low noise preamplifiers, and drivers of
high performance ADCs. Analog Devices, Inc., proprietary next
generation SiGe bipolar process and innovative architecture
enables such a high performance amplifier.
TheADA4897-2
and settle to 0.1% in 45 ns. With a wide supply voltage range
(3 V to 10 V), the ADA4897-2/ADA4897-1 is an ideal
candidates for systems that require high dynamic range,
precision, and high speed.
The
operates over the extended industrial temperature range of
−40°C to +125°C.
Rev. PrA
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%
ADA4897-2
ADA4897-2
ADA4897-2
is an ideal solution in a variety of applications,
has 230 MHz bandwidth, 120 V/μs slew rate,
is available in an 10-lead MSOP package and
is a unity gain stable, low noise, rail-to-rail
OUT
= 2 V p-p
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
ADA4896-2/
ADA4897-1/
ADA4898-1/
ADA4898-2
Table 2. Complementary ADCs
Part Number
AD7944
AD7985
AD7986
Rail-to-Rail Output Amplifiers
8
7
6
5
4
3
2
1
0
1
V
S
= ±5V
FUNCTIONAL BLOCK DIAGRAM
10
V
@ 1 kHz
0.9
5
7
6
1.4
1
0.9
N
Figure 2.Voltage Noise vs. Frequency
Figure 1. 10-Lead ADA4897-2 MSOP
(nV/√Hz)
1 nV/√Hz, Low Power,
Bits
14
16
18
100
©2011 Analog Devices, Inc. All rights reserved.
FREQUENCY (Hz)
Speed (MSPS)
2.5
2.5
2
V
@ 100 kHz
0.9
2.1
0.95
3
1
1
0.9
1k
N
(nV/√Hz)
10k
ADA4897-2
BW (MHz)
8
490
510
1000
600
230
65
100k
www.analog.com
Power (mW)
15.5
15.5
15
1M
Supply
Voltage (V)
10 to 30
5 to 24
5 to 12
3.3 to 12
5 to 12
3 to 10
10 to 32
5M

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ada4897-2 Summary of contents

Page 1

... TheADA4897-2 has 230 MHz bandwidth, 120 V/μs slew rate, and settle to 0. ns. With a wide supply voltage range ( V), the ADA4897-2/ADA4897 ideal candidates for systems that require high dynamic range, precision, and high speed. The ...

Page 2

... ADA4897-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Preliminary Technical Data   ±5 V Supply ....................................................................................3   Supply ....................................................................................5   Supply ....................................................................................7   Outline Dimensions ..........................................................................9   Ordering Guide .............................................................................9   Rev. PrA | Page           ...

Page 3

... R = 100 Ω dBc SFDR Sinking/sourcing 30% overshoot DISABLE = − −V = − −V = − − Rev. PrA | Page ADA4897-2 Min Typ Max Unit 230 MHz 30 MHz 90 MHz 7 MHz 120 V/μ − ...

Page 4

... ADA4897-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +5 V DISABLE = −5 V Rev. PrA | Page Preliminary Technical Data Min Typ Max Unit >+V − 0 <+V – −2.5 μA −80 μA 0.25 μs 12 μ ...

Page 5

... 100 Ω dBc SFDR Sinking/sourcing 30% overshoot DISABLE = 4 5.5 V, − −V = −0 +0 Rev. PrA | Page ADA4897-2 Min Typ Max Unit 230 MHz 30 MHz 90 MHz 7 MHz 100 V/μ −115 dBc − ...

Page 6

... ADA4897-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +5 V DISABLE = 0 V Rev. PrA | Page Preliminary Technical Data Min Typ Max Unit >+V − 0 <+V − −2.5 μA −50 μA 0.25 μs 12 μ ...

Page 7

... 100 Ω dBc SFDR Sinking/sourcing 30% overshoot DISABLE = 2 3.7 V, − −V = −0 0 Rev. PrA | Page ADA4897-2 Min Typ Max Unit 230 MHz 45 MHz 90 MHz 7 MHz 85 V/μ −105 dBc − ...

Page 8

... ADA4897-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +3 V DISABLE = 0 V Rev. PrA | Page Preliminary Technical Data Min Typ Max Unit >+V −0 <− −2.5 μA −40 μA 0.25 μs 12 μ ...

Page 9

... MAX 0.75 0.15 0.27 SEATING 0.23 0.00 0.17 PLANE 0.08 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-BA Figure 3. 10-Lead Mini Small Outline Package [MSOP] (RM-10) Dimensions shown in millimeters Package Description 10-Lead MSOP 10-Lead MSOP 10-Lead MSOP Rev. PrA | Page 0.80 8° 0.60 0° 0.40 Package Option Ordering Quantity RM-10 1 RM-10 1,000 RM-10 3,000 ADA4897-2 Branding ...

Page 10

... ADA4897-2 NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR09447-0-9/11(PrA) Preliminary Technical Data Rev. PrA | Page ...

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