|
|
PDF ADA4858-3 Data sheet ( Hoja de datos )
| Número de pieza | ADA4858-3 | |
| Descripción | Triple Op Amp | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ADA4858-3 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
|
No Preview Available !
Data Sheet
Single-Supply, High Speed,
Triple Op Amp with Charge Pump
ADA4858-3
FEATURES
Integrated charge pump
Supply range: 3 V to 5.5 V
Output range: −3.3 V to −1.8 V
50 mA maximum output current for external use at −3 V
High speed amplifiers
−3 dB bandwidth: 600 MHz
Slew rate: 600 V/µs
0.1 dB flatness: 85 MHz
0.1% settling time: 18 ns
Low power
Total quiescent current: 42 mA
Power-down feature
High input common-mode voltage range
−1.8 V to +3.8 V at +5 V supply
Current feedback architecture
Differential gain error: 0.01%
Differential phase error: 0.02°
Available in 16-lead LFCSP
CONNECTION DIAGRAM
ADA4858-3
16 15 14 13
+VS 1
C1_a 2
C1_b 3
CPO 4
CHARGE
PUMP
12 +IN2
11 –IN2
10 OUT2
9 PD
5 67 8
NOTES
1. NC = NO CONNECT.
2. EXPOSED PAD, CONNECT TO GROUND.
Figure 1.
APPLICATIONS
Professional video
Consumer video
Imaging
Active filters
GENERAL DESCRIPTION
The ADA4858-3 (triple) is a single-supply, high speed current
feedback amplifier with an integrated charge pump that eliminates
the need for negative supplies to output negative voltages or output
a 0 V level for video applications. The 600 MHz, −3 dB bandwidth
and 600 V/µs slew rate make this amplifier well suited for many
high speed applications. In addition, its 0.1 dB flatness out to
85 MHz at G = 2, along with its differential gain and phase errors
of 0.01% and 0.02° into a 150 Ω load, make it well suited for
professional and consumer video applications.
This triple operational amplifier is designed to operate on
supply voltages of 3.3 V to 5 V, using only 42 mA of total
quiescent current, including the charge pump. To further
reduce the power consumption, it is equipped with a power-
down feature that lowers the total supply current to as low as
2.5 mA when the amplifier is not being used. Even in power-
down mode, the charge pump can be used to power external
components. The maximum output current for external use is
50 mA at −3 V. The amplifier also has a wide input common-
mode voltage range that extends from 1.8 V below ground to
1.2 V below the positive rail at a 5 V supply.
The ADA4858-3 is available in a 16-lead LFCSP, and it is designed
to work over the extended industrial temperature range of
−40°C to +105°C.
Rev. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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 ©2008–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ADA4858-3
Data Sheet
TA = 25°C, VS = 3.3 V, G = 2, RF = 301 Ω, RF = 402 Ω for G = 1, RL = 150 Ω, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
−3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion (HD2/HD3)
Crosstalk
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
DC PERFORMANCE
Input Offset Voltage
+ Input Bias Current
− Input Bias Current
Open-Loop Transimpedance
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage Swing
Output Overdrive Recovery Time
Maximum Linear Output Current @ VOUT = 1 VPEAK
POWER-DOWN
Input Voltage
Bias Current
Turn-On Time
Turn-Off Time
POWER SUPPLY
Operating Range
Total Quiescent Current
Amplifiers
Charge Pump
Total Quiescent Current When Powered Down
Amplifiers
Charge Pump
Positive Power Supply Rejection Ratio
Negative Power Supply Rejection Ratio
Charge Pump Output Voltage
Charge Pump Sink Current
Conditions
VOUT = 0.1 V p-p, G = 1
VOUT = 0.1 V p-p
VOUT = 2 V p-p, G = 1
VOUT = 2 V p-p
VOUT = 2 V p-p
VOUT = 2 V step
VOUT = 2 V step
fC = 1 MHz, VOUT = 2 V p-p
fC = 5 MHz, VOUT = 2 V p-p
f = 5 MHz
f = 1 MHz
f = 1 MHz (+IN/−IN)
+IN1/+IN2
−IN1/−IN2
+IN1/+IN2
Typical
Rise/fall, f = 5 MHz
fC = 1 MHz, HD2 ≤ −50 dBc
Enabled
Powered down
Min
−14
−2
−13
300
−0.9
−0.6 to +2.1
−0.1
3
14
0.15
−2.1
Typ
540
340
140
145
70
430
20
−88/−91
−75/−78
−60
4
2/9
0.02
0.03
+0.7
+0.6
+7
350
15
90
1.5
−60
−0.9 to +2.2
15
20
1.25
1.35
0.3
1.6
19
21
0.25
2
−63
−57
−2
Max
+14
+2
+13
+2.2
−54
+0.1
5.5
20
0.3
−60
−54
−1.8
45
Unit
MHz
MHz
MHz
MHz
MHz
V/µs
ns
dBc
dBc
dB
nV/√Hz
pA/√Hz
%
Degrees
mV
µA
µA
kΩ
MΩ
Ω
pF
V
dB
V
ns
mA
V
V
µA
µs
µs
V
mA
mA
mA
mA
dB
dB
V
mA
Rev. B | Page 4 of 20
5 Page 
ADA4858-3
0.15
CL = 10pF
0.10
CL = 6pF
0.05
CL = 4pF
0
–0.05
–0.10
VOUT = 200mV p-p
–0.15
TIME (5ns/DIV)
Figure 22. Small Signal Transient Response vs. Capacitive Load
2.0
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
–2.0
–5
0
0.5
OUTPUT
0.4
0.3
INPUT
0.2
0.1
0
ERROR
–0.1
–0.2
–0.3
–0.4
–0.5
5 10 15 20 25 30 35 40
TIME (ns)
Figure 23. Settling Time (Rise)
5
VIN
4
3 VOUT
2
1
0
–1
–2
–3
TIME (20ns/DIV)
Figure 24. Output Overdrive Recovery
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
Data Sheet
1.5
CL = 10pF
1.0
CL = 16pF
CL = 14pF
0.5
0
–0.5
–1.0
–1.5
TIME (5ns/DIV)
Figure 25. Large Signal Transient Response vs. Capacitive Load
2.0 0.5
1.6 0.4
1.2
0.8 ERROR
0.3
0.2
0.4 0.1
00
–0.4 –0.1
–0.8
INPUT
–0.2
–1.2 –0.3
OUTPUT
–1.6 –0.4
–2.0
–5
0
–0.5
5 10 15 20 25 30 35 40
TIME (ns)
Figure 26. Settling Time (Fall)
3.0
VIN
2.5
1.5
VS = 3.3V
2.0
VOUT
1.5
1.0
1.0 0.5
0.5
00
–0.5
–1.0 –0.5
–1.5
–2.0
TIME (20ns/DIV)
–1.0
Figure 27. Output Overdrive Recovery, VS = 3.3 V
Rev. B | Page 10 of 20
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet ADA4858-3.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADA4858-3 | Triple Op Amp | 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 |