Datenblatt-pdf.com


AD8139 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD8139
Beschreibung Differential ADC Driver
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 27 Seiten
AD8139 Datasheet, Funktion
Data Sheet
FEATURES
Fully differential
Low noise
2.25 nV/√Hz
2.1 pA/√Hz
Low harmonic distortion
98 dBc SFDR at 1 MHz
85 dBc SFDR at 5 MHz
72 dBc SFDR at 20 MHz
High speed
410 MHz, 3 dB BW (G = 1)
800 V/µs slew rate
45 ns settling time to 0.01%
69 dB output balance at 1 MHz
80 dB dc CMRR
Low offset: ±0.5 mV maximum
Low input offset current: 0.5 µA maximum
Differential input and output
Differential-to-differential or single-ended-to-differential
operation
Rail-to-rail output
Adjustable output common-mode voltage
Wide supply voltage range: 5 V to 12 V
Available in a small SOIC package and an 8-lead LFCSP
APPLICATIONS
ADC drivers to 18 bits
Single-ended-to-differential converters
Differential filters
Level shifters
Differential PCB drivers
Differential cable drivers
GENERAL DESCRIPTION
The AD8139 is an ultralow noise, high performance differential
amplifier with rail-to-rail output. With its low noise, high
SFDR, and wide bandwidth, it is an ideal choice for driving
analog-to-digital converters (ADCs) with resolutions to 18 bits.
The AD8139 is easy to apply, and its internal common-mode
feedback architecture allows its output common-mode voltage
to be controlled by the voltage applied to one pin. The internal
feedback loop also provides outstanding output balance as well
as suppression of even-order harmonic distortion products. Fully
differential and single-ended-to-differential gain configurations
are easily realized by the AD8139. Simple external feedback
networks consisting of four resistors determine the closed-loop
gain of the amplifier.
Rev. C
Document Feedback
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.
Low Noise, Rail-to-Rail,
Differential ADC Driver
AD8139
FUNCTIONAL BLOCK DIAGRAMS
AD8139
–IN 1
VOCM 2
V+ 3
+OUT 4
8 +IN
7 NIC
6 V–
5 –OUT
NIC = NO INTERNAL CONNECTION.
Figure 1. 8-Lead SOIC
AD8139
TOP VIEW
(Not to Scale)
–IN 1
VOCM 2
V+ 3
+OUT 4
8 +IN
7 NIC
6 V–
5 –OUT
NIC = NO INTERNAL CONNECTION.
Figure 2. 8-Lead LFCSP
The AD8139 is manufactured on the proprietary Analog Devices,
Inc., second-generation XFCB process, enabling it to achieve low
levels of distortion with input voltage noise of only 2.25 nV/√Hz.
The AD8139 is available in an 8-lead SOIC package with an
exposed paddle (EP) on the underside of its body and a 3 mm ×
3 mm LFCSP. It is rated to operate over the temperature range
of −40°C to +125°C.
100
10
1
10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
Figure 3. Input Voltage Noise vs. Frequency
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2004–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






AD8139 Datasheet, Funktion
Data Sheet
AD8139
VS = 5 V, VOCM = 2.5 V
TA = 25°C, differential gain = 1, RL, dm = 1 kΩ, RF = RG = 200 Ω, unless otherwise noted. TMIN to TMAX = −40°C to +125°C.
Table 2.
Parameter
DIFFERENTIAL INPUT PERFORMANCE
Dynamic Performance
−3 dB Small Signal Bandwidth
−3 dB Large Signal Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.01%
Overdrive Recovery Time
Noise/Harmonic Performance
SFDR
Third-Order IMD
Input Voltage Noise
Input Current Noise
DC Performance
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Open-Loop Gain
Input Characteristics
Input Common-Mode Voltage Range
Input Resistance
Input Capacitance
CMRR
Output Characteristics
Output Voltage Swing
Output Current
Output Balance Error
VOCM TO VO, cm PERFORMANCE
VOCM Dynamic Performance
−3 dB Bandwidth
Slew Rate
Gain
VOCM Input Characteristics
Input Voltage Range
Input Resistance
Input Offset Voltage
Input Voltage Noise
Input Bias Current
CMRR
Test Conditions/Comments
VO, dm = 0.1 V p-p
VO, dm = 2 V p-p
VO, dm = 0.1 V p-p
VO, dm = 2 V step
VO, dm = 2 V step
G = 2, VIN, dm = 7 V p-p triangle wave
VO, dm = 2 V p-p, fC = 1 MHz
VO, dm = 2 V p-p, fC = 5 MHz, RL = 800 Ω
VO, dm = 2 V p-p, fC = 20 MHz, RL = 800 Ω
VO, dm = 2 V p-p, fC = 10.05 MHz ± 0.05 MHz
f = 100 kHz
f = 100 kHz
VIP = VIN = VOCM = 2.5 V
TMIN to TMAX
TMIN to TMAX
Differential
Common mode
Common mode
ΔVICM = ±1 V dc, RF = RG = 10 kΩ
Each single-ended output, RF = RG = 10 kΩ
Each single-ended output,
RL, dm = open circuit, RF = RG = 10 kΩ
Each single-ended output
f = 1 MHz
VO, cm = 0.1 V p-p
VO, cm = 2 V p-p
VOS, cm = VO, cm − VOCM; VIP = VIN = VOCM = 2.5 V
f = 100 kHz
ΔVOCM/ΔVO, dm, ΔVOCM = ±1 V
Min Typ Max
330 385
135 165
34
540
55
35
99
87
75
−87
2.25
2.1
−500
±150
1.25
2.2
0.13
112
+500
7.5
0.5
14
600
1.5
1.2
75 79
−VS + 0.15
−VS + 0.10
80
−70
+VS − 0.15
+VS − 0.10
0.999
1.0
−1.0
67
440
150
1.000
1.001
3.5
±0.45
3.5
1.3
79
3.8
+1.0
4.2
Unit
MHz
MHz
MHz
V/µs
ns
ns
dBc
dBc
dBc
dBc
nV/√Hz
pA/√Hz
µV
µV/°C
µA
µA
dB
V
pF
dB
V
V
mA
dB
MHz
V/µs
V/V
V
mV
nV/√Hz
µA
dB
Rev. C | Page 5 of 26

6 Page









AD8139 pdf, datenblatt
Data Sheet
–30
VO, dm = 2.0V p-p
–40
–50
–60
VS = ±5V
–70
–80
VS = +5V
–90
–100
–110
–120
–130
0.1
1 10
FREQUENCY (MHz)
100
Figure 19. Second Harmonic Distortion vs. Frequency and Supply Voltage
–30
–40 VO, dm = 2.0V p-p
–50
–60
G=1
–70
–80
G=5
–90
–100
–110
G=2
–120
–130
–140
0.1
1 10
FREQUENCY (MHz)
100
Figure 20. Second Harmonic Distortion vs. Frequency and Gain
–30
VO, dm = 2.0V p-p
–40
–50
–60 RL = 100
–70
RL = 200
–80
–90
–100
–110
RL = 1k
RL = 500
–120
–130
0.1
1 10
FREQUENCY (MHz)
100
Figure 21. Second Harmonic Distortion vs. Frequency and Load
AD8139
–30
VO, dm = 2.0V p-p
–40
–50
VS = +5V
–60
–70
VS = ±5V
–80
–90
–100
–110
–120
–130
0.1
1 10
FREQUENCY (MHz)
100
Figure 22. Third Harmonic Distortion vs. Frequency and Supply Voltage
–30
–40 VO, dm = 2.0V p-p
–50
–60
–70
–80
–90
–100
–110
–120
G=1
G=2
–130
–140
0.1
G=5
1 10
FREQUENCY (MHz)
100
Figure 23. Third Harmonic Distortion vs. Frequency and Gain
–30
VO, dm = 2.0V p-p
–40
–50
RL = 100
–60
RL = 200
–70
–80
–90
–100
–110
RL = 500
–120
–130
0.1
RL = 1k
1 10
FREQUENCY (MHz)
100
Figure 24. Third Harmonic Distortion vs. Frequency and Load
Rev. C | Page 11 of 26

12 Page





SeitenGesamt 27 Seiten
PDF Download[ AD8139 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
AD813Low Power Triple Video AmplifierAnalog Devices
Analog Devices
AD8130(AD8129 / AD8130) Low Cost 270 MHz Differential Receiver AmplifiersAnalog Devices
Analog Devices
AD8131Low-Cost / High-Speed Differential DriverAnalog Devices
Analog Devices
AD8132Low-Cost/ High-Speed Differential AmplifierAnalog Devices
Analog Devices
AD8133Triple Differential DriverAnalog Devices
Analog Devices

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche