ada4895-2 Analog Devices, Inc., ada4895-2 Datasheet

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ada4895-2

Manufacturer Part Number
ada4895-2
Description
1 Nv/√hz, Low Power,g≥10 Stable Rail-to-rail Output Amplifier
Manufacturer
Analog Devices, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ada4895-2ARMZ-R7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Preliminary Data Sheet
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
APPLICATIONS
Low noise preamplifier
Ultrasound amplifiers
PLL loop filters
High performance ADC drivers
DAC buffers
GENERAL DESCRIPTION
The
high speed voltage feedback amplifier having 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 −63 dBc at 2 MHz, the
ADA4895-2
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.
The
500 V/μs slew rate, and settle to 0.1% in TBD ns. With a wide
supply voltage range (3 V to 10 V), the
candidates for systems that require high dynamic range, high
gain, precision, and high speed.
The
itoperates over the extended industrial temperature range of
−40°C to +125°C.
Rev. PrB
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 = +10)
500 V/μs slew rate
TBD ns settling time to 0.1%
ADA4895-2
ADA4895-2
ADA4895-2
is an ideal solution in a variety of applications,
is gain 10 stable, low noise, rail-to-rail output,
has 1500 MHz Gain bandwidth product,
is available in 10-lead MSOP package and
ADA4895-2
OUT
= 2 V p-p
is ideal
1 nV/√Hz, Low Power,G≥10 Stable
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
ADA4897-1
ADA4896-2
ADA4899-1
ADA4898-1/
ADA4898-2
Table 2. Complementary ADCs
Part Number
AD7944
AD7985
AD7986
Rail-to-Rail Output Amplifier
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
1
1.4
0.9
Bits
14
16
18
N
Figure 1. 10-Lead MSOP (ADA4895-2)
Figure 2. Voltage Noise vs. Frequency
(nV/√Hz)
100
©2011 Analog Devices, Inc. All rights reserved.
FREQUENCY (Hz)
V
@ 100 kHz
0.9
2.1
0.95
3
1
1
1
0.9
Speed (MSPS)
2.5
2.5
2
1k
N
(nV/√Hz)
10k
ADA4895-2
BW (MHz)
8
490
510
1000
230
230
600
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
3 to 10
3 to 10
5 to 12
10 to 32
5M

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ada4895-2 Summary of contents

Page 1

... ADA4897-1 ADA4896-2 ADA4899-1 ADA4898-1/ ADA4898-2 is ideal Table 2. Complementary ADCs Part Number AD7944 AD7985 AD7986 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ADA4895-2 FUNCTIONAL BLOCK DIAGRAM Figure 1. 10-Lead MSOP (ADA4895- ± 100 ...

Page 2

... ADA4895-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3   ±5 V Supply ....................................................................................3   Supply ....................................................................................5   Supply ....................................................................................7   Pin Configurations and Function Descriptions ............................9   Typical Performance Characteristics ........................................... 10   Outline Dimensions ....................................................................... 12 Rev. PrB | Page Preliminary Data Sheet   ...

Page 3

... L 45 dBc SFDR Sinking/sourcing 30% overshoot DISABLE = − −V = − −V = − − Rev. PrB | Page ADA4895-2 Min Typ Max Unit 233 MHz 140 MHz TBD MHz 10 MHz 500 V/μs TBD ns ...

Page 4

... ADA4895-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +5 V DISABLE = −5 V Rev. PrB | Page Preliminary Data Sheet 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. PrB | Page ADA4895-2 Min Typ Max Unit 203 MHz 127 MHz TBD MHz 9.8 MHz 451 V/μs TBD ns TBD ns − ...

Page 6

... ADA4895-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +5 V DISABLE = 0 V Rev. PrB | Page Preliminary Data Sheet 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. PrB | Page ADA4895-2 Min Typ Max Unit 192 MHz 124 MHz 9.2 MHz TBD MHz 450 V/μs TBD ns TBD ns − ...

Page 8

... ADA4895-2 Parameter DISABLE PIN DISABLE Voltage Input Current Enabled Disabled Switching Speed Enabled Disabled Conditions Enabled Disabled DISABLE = +3 V DISABLE = 0 V Rev. PrB | Page Preliminary Data Sheet Min Typ Max Unit >+V −0 <− −2.5 μA −40 μA 0.25 μs 12 μ ...

Page 9

... DISABLE1 6 DISABLE2 7 +IN2 8 −IN2 9 OUT2 EPAD Figure 3. 10-Lead ADA4895-2 MSOP (10) Description Output 1. Inverting Input 1. Noninverting Input 1. Negative Supply. Disable1. Disable2. Noninverting Input 2. Inverting Input 2. Output 2. Positive Supply. Exposed Pad. The exposed pad can be connected to GND or left floating. Rev. PrB | Page ...

Page 10

... ADA4895-2 TYPICAL PERFORMANCE CHARACTERISTICS kΩ,unless otherwise noted.When G = +10 Figure 4. Small Signal Frequency Response vs. Supply Voltage Figure 5. Harmonic Distortion vs. Frequency for various supplies ± 100 1k 10k FREQUENCY (Hz) Figure 6. Voltage Noise vs. Frequency = 249 Ω. ...

Page 11

... S – –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 1k Figure 13. Large Signal Transient Response for Various Gains Rev. PrB | Page ADA4895 +5V S Δ p –PSRR +PSRR 10k 100k 1M 10M FREQUENCY (Hz) Figure 12. PSRR vs. Frequency 100M ...

Page 12

... OUTLINE DIMENSIONS 3.10 3.00 2.90 IDENTIFIER 0.95 0.85 0.75 0.15 0.05 COPLANARITY ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.10 3.00 2.90 5. 4.90 4. PIN 1 0.50 BSC 15° MAX 1.10 MAX 0.23 6° 0.30 0.13 0° 0.15 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-BA Figure 14. 10-Lead Mini Small Outline Package [MSOP] ...

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