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ADA4897-1ARJZ-R2 其他数据使用手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
运算放大器
封装:
SOT-23-6
描述:
ANALOG DEVICES ADA4897-1ARJZ-R2 运算放大器, 单路, 230 MHz, 1个放大器, 120 V/µs, 3V 至 10V, SOT-23, 6 引脚
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ADA4897-1ARJZ-R2数据手册
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1 nV/√Hz, Low Power,
Rail-to-Rail Output Amplifiers
Data Sheet
ADA4896-2/ADA4897-1/ADA4897-2
Rev. B
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2012 Analog Devices, Inc. All rights reserved.
FEATURES
Low wideband noise
1 nV/√Hz
2.8 pA/√Hz
Low 1/f noise: 2.4 nV/√Hz at 10 Hz
Low distortion: −115 dBc at 100 kHz, V
OUT
= 2 V p-p
Low power: 3 mA per amplifier
Low input offset voltage: 0.5 mV maximum
High speed
−3 dB bandwidth: 230 MHz (G = +1)
Slew rate: 120 V/μs
Settling time to 0.1%: 45 ns
Rail-to-rail output
Wide supply range: 3 V to 10 V
Disable feature (ADA4897-1/ADA4897-2)
APPLICATIONS
Low noise preamplifier
Ultrasound amplifiers
PLL loop filters
High performance ADC drivers
DAC buffers
GENERAL DESCRIPTION
The ADA4896-2/ADA4897-1/ADA4897-2 are unity-gain stable,
low noise, rail-to-rail output, high speed voltage feedback amplifiers
that have a quiescent current of 3 mA. With a 1/f noise of
2.4 nV/√Hz at 10 Hz and a spurious-free dynamic range of −80 dBc
at 2 MHz, the ADA4896-2/ADA4897-1/ADA4897-2 are ideal
solutions 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.
The ADA4896-2/ADA4897-1/ADA4897-2 have 230 MHz
bandwidth, 120 V/μs slew rate, and settle to 0.1% in 45 ns.
With a wide supply voltage range of 3 V to 10 V, the ADA4896-2/
ADA4897-1/ADA4897-2 are ideal candidates for systems that
require high dynamic range, precision, low power, and high speed.
The ADA4896-2 is available in 8-lead LFCSP and 8-lead MSOP
packages. The ADA4897-1 is available in 8-lead SOIC and 6-lead
SOT-23 packages. The ADA4897-2 is available in a 10-lead MSOP
package. The ADA4896-2/ADA4897-1/ADA4897-2 operate over
the extended industrial temperature range of −40°C to +125°C.
FUNCTIONAL BLOCK DIAGRAM
NC
1
–IN
2
+IN
3
–
V
S
4
8
+V
S
7
OUT
6
NC
5
09447-101
DISABLE
Figure 1. 8-Lead SOIC (ADA4897-1)
0
1
2
3
4
5
6
7
8
FREQUENCY (Hz)
1 10 100 1k 10k 100k 1M 5M
VOLTAGE NOISE (nV/√Hz)
09447-102
V
S
= ±5V
Figure 2. Voltage Noise vs. Frequency
Table 1. Other Low Noise Amplifiers
V
N
(nV/√Hz) Supply
Part No. At 1 kHz At 100 kHz BW (MHz) Voltage (V)
AD797 0.9 0.9 8 10 to 30
AD8021 5 2.1 490 5 to 24
AD8099 3 0.95 510 5 to 12
AD8045 6 3 1000 3.3 to 12
ADA4899-1 1.4 1 600 5 to 12
ADA4898-1/
ADA4898-2
0.9 0.9 65 10 to 32
Table 2. Complementary ADCs
Part No. Bits Speed (MSPS) Power (mW)
AD7944 14 2.5 15.5
AD7985 16 2.5 15.5
AD7986 18 2 15
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