Analog Devices ADA4897-1 Evaluation Board ADA4897-1AR-EBZ ADA4897-1AR-EBZ Data Sheet
Product codes
ADA4897-1AR-EBZ
1 nV/√Hz, Low Power,
Rail-to-Rail Output Amplifiers
Data Sheet
/
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.
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
2.8 pA/√Hz
Low 1/f noise: 2.4 nV/√Hz at 10 Hz
Low distortion: −115 dBc at 100 kHz, V
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
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
Slew rate: 120 V/μs
Settling time to 0.1%: 45 ns
APPLICATIONS
Low noise preamplifier
Ultrasound amplifiers
PLL loop filters
High performance ADC drivers
DAC buffers
Ultrasound amplifiers
PLL loop filters
High performance ADC drivers
DAC buffers
GENERAL DESCRIPTION
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
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
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.
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.
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
With a wide supply voltage range of 3 V to 10 V, the
require high dynamic range, precision, low power, and high speed.
is available in 8-lead LFCSP and 8-lead MSOP
packages. The
is available in 8-lead SOIC and 6-lead
SOT-23 packages. The
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 (
)
0
1
2
3
4
5
6
7
8
FREQUENCY (Hz)
1
10
100
1k
10k
100k
1M
5M
VO
L
T
A
G
E N
O
IS
E (n
V/
√Hz
)
094
47-
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)
0.9
0.9
8
10 to 30
5
2.1
490
5 to 24
3
0.95
510
5 to 12
6
3
1000
3.3 to 12
1.4
1
600
5 to 12
0.9
0.9
65
10 to 32
Table 2. Complementary ADCs
Part No.
Bits
Speed (MSPS)
Power (mW)
14 2.5
15.5
16 2.5
15.5
18 2
15