|
|
PDF ADA4897-2 Data sheet ( Hoja de datos )
| Número de pieza | ADA4897-2 | |
| Descripción | Rail-to-Rail Output Amplifiers | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ADA4897-2 (archivo pdf) en la parte inferior de esta página. Total 29 Páginas | ||
|
No Preview Available !
Data Sheet
1 nV/√Hz, Low Power,
Rail-to-Rail Output Amplifiers
ADA4896-2/ADA4897-1/ADA4897-2
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, VOUT = 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
–VS 4
8 DISABLE
7 +VS
6 OUT
5 NC
Figure 1. 8-Lead SOIC (ADA4897-1)
8 VS = ±5V
7
6
5
4
3
2
1
0
1 10 100 1k 10k 100k 1M 5M
FREQUENCY (Hz)
Figure 2. Voltage Noise vs. Frequency
Table 1. Other Low Noise Amplifiers
VN (nV/√Hz)
Part No.
At 1 kHz At 100 kHz BW (MHz)
AD797
0.9
0.9
8
AD8021
5
2.1 490
AD8099
3
0.95 510
AD8045
6
3
1000
ADA4899-1 1.4
1
600
ADA4898-1/ 0.9
ADA4898-2
0.9
65
Supply
Voltage (V)
10 to 30
5 to 24
5 to 12
3.3 to 12
5 to 12
10 to 32
Table 2. Complementary ADCs
Part No.
Bits
Speed (MSPS)
AD7944
14
2.5
AD7985
16
2.5
AD7986
18
2
Power (mW)
15.5
15.5
15
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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.
1 page  
ADA4896-2/ADA4897-1/ADA4897-2
Parameter
POWER SUPPLY
Operating Range
Quiescent Current per Amplifier
Power Supply Rejection Ratio (PSRR)
Positive
Negative
DISABLE PIN (ADA4897-1/ADA4897-2)
DISABLE Voltage
Input Current
Enabled
Disabled
Switching Speed
Enabled
Disabled
Test Conditions/Comments
DISABLE = −5 V
+VS = 4 V to 6 V, −VS = −5 V
+VS = 5 V, −VS = −4 V to −6 V
Enabled
Disabled
DISABLE = +5 V
DISABLE = −5 V
Data Sheet
Min Typ Max Unit
3 to 10
V
2.8 3.0 3.2 mA
0.13 0.25 mA
−96 −125
−96 −121
dB
dB
>+VS − 0.5
<+VS − 2
−1.2
−40
V
V
μA
μA
0.25 μs
12 μs
+5 V SUPPLY
TA = 25°C, G = +1, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 4.
Parameter
DYNAMIC PERFORMANCE
−3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
Settling Time to 0.01%
NOISE/HARMONIC PERFORMANCE
Harmonic Distortion (SFDR)
Input Voltage Noise
Input Current Noise
0.1 Hz to 10 Hz Noise
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Bias Current Drift
Input Bias Offset Current
Open-Loop Gain
Test Conditions/Comments
G = +1, VOUT = 0.02 V p-p
G = +1, VOUT = 2 V p-p
G = +2, VOUT = 0.02 V p-p
G = +2, VOUT = 2 V p-p, RL = 100 Ω
G = +2, VOUT = 3 V step
G = +2, VOUT = 2 V step
G = +2, VOUT = 2 V step
VOUT = 2 V p-p
fC = 100 kHz
fC = 1 MHz
fC = 2 MHz
fC = 5 MHz
f = 10 Hz
f = 100 kHz
f = 10 Hz
f = 100 kHz
G = +101, RF = 1 kΩ, RG = 10 Ω
VOUT = 0.5 V to 4.5 V
Min
−500
−17
−0.6
97
Typ
230
30
90
7
100
45
95
−115
−93
−80
−61
2.4
1
11
2.8
99
−30
0.2
−11
3
−0.02
110
Max
+500
−4
+0.6
Unit
MHz
MHz
MHz
MHz
V/μs
ns
ns
dBc
dBc
dBc
dBc
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
nV p-p
μV
μV/°C
μA
nA/°C
μA
dB
Rev.B | Page 4 of 28
5 Page 
ADA4896-2/ADA4897-1/ADA4897-2
OUT1 1
–IN1 2
+IN1 3
–VS 4
DISABLE1 5
ADA4897-2
10 +VS
9 OUT2
8 –IN2
7 +IN2
6 DISABLE2
Figure 8. 10-Lead MSOP Pin Configuration
Table 10. ADA4897-2 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
OUT1
Output 1.
2
−IN1
Inverting Input 1.
3
+IN1
Noninverting Input 1.
4 −VS Negative Supply.
5
DISABLE1
Disable 1.
6
DISABLE2
Disable 2.
7
+IN2
Noninverting Input 2.
8
−IN2
Inverting Input 2.
9
OUT2
Output 2.
10 +VS Positive Supply.
Data Sheet
Rev.B | Page 10 of 28
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet ADA4897-2.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADA4897-1 | (ADA4896-2 / ADA4897-1) Rail-to-Rail Output Amplifiers | Analog Devices |
| ADA4897-2 | Rail-to-Rail Output Amplifiers | Analog Devices |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |