AD8131ARZ Analog Devices Inc, AD8131ARZ Datasheet

IC AMP DIFF LDIST 60MA 8SOIC

AD8131ARZ

Manufacturer Part Number
AD8131ARZ
Description
IC AMP DIFF LDIST 60MA 8SOIC
Manufacturer
Analog Devices Inc
Type
Diff Line Driverr
Datasheet

Specifications of AD8131ARZ

Amplifier Type
Differential
Number Of Circuits
1
Output Type
Differential
Slew Rate
2000 V/µs
-3db Bandwidth
400MHz
Current - Input Bias
500nA
Voltage - Input Offset
1500µV
Current - Supply
11.5mA
Current - Output / Channel
60mA
Voltage - Supply, Single/dual (±)
2.8 V ~ 11 V, ±1.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
1
Number Of Elements
1
Power Supply Requirement
Single/Dual
Common Mode Rejection Ratio
70dB
Voltage Gain Db
6.19dB
Input Resistance
0.0015@5VMohm
Input Offset Voltage
12@5VmV
Input Bias Current
0.5@5VnA
Single Supply Voltage (typ)
3/5/9V
Dual Supply Voltage (typ)
±3/±5V
Power Supply Rejection Ratio
70dB
Power Dissipation
250mW
Rail/rail I/o Type
No
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
11V
Dual Supply Voltage (min)
±1.4V
Dual Supply Voltage (max)
±5.5V
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
No. Of Amplifiers
1
Bandwidth
400MHz
Supply Voltage Range
2.7V To 11V, ± 1.4V To ± 5.5V
Supply Current
11.5mA
Amplifier Case Style
SOIC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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FEATURES
High speed
Fixed gain of 2 with no external components
Internal common-mode feedback to improve gain and phase
Separate input to set the common-mode output voltage
Low distortion: 68 dB SFDR @ 5 MHz 200 Ω load
Power supply range +2.7 V to ±5 V
APPLICATIONS
Video line driver
Digital line driver
Low power differential ADC driver
Differential in/out level shifting
Single-ended input to differential output driver
GENERAL DESCRIPTION
The AD8131 is a differential or single-ended input to
differential output driver requiring no external components for
a fixed gain of 2. The AD8131 is a major advancement over op
amps for driving signals over long lines or for driving
differential input ADCs. The AD8131 has a unique internal
feedback feature that provides output gain and phase matching
that are balanced to −60 dB at 10 MHz, reducing radiated EMI
and suppressing harmonics. Manufactured on the Analog
Devices, Inc. next generation XFCB bipolar process, the
AD8131 has a −3 dB bandwidth of 400 MHz and delivers a
differential signal with very low harmonic distortion.
The AD8131 is a differential driver for the transmission of
high-speed signals over low-cost twisted pair or coax cables.
The AD8131 can be used for either analog or digital video
signals or for other high-speed data transmission. The AD8131
driver is capable of driving either Cat3 or Cat5 twisted pair or
coax with minimal line attenuation. The AD8131 has
considerable cost and performance improvements over discrete
line driver solutions.
The AD8131 can replace transformers in a variety of applications,
preserving low frequency and dc information. The AD8131 does
not have the susceptibility to magnetic interference and hysteresis
of transformers. It is smaller, easier to work with, and has the high
reliability associated with ICs.
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.
400 MHz, −3 dB full power bandwidth
2000 V/μs slew rate
balance: −60 dB @ 10 MHz
The AD8131’s differential output also helps balance the input
for differential ADCs, optimizing the distortion performance of
the ADCs. The common-mode level of the differential output is
adjustable by a voltage on the V
input signals for driving single-supply ADCs with dual supply
signals. Fast overload recovery preserves sampling accuracy.
The AD8131 is available in both SOIC and MSOP packages for
operation over −40°C to +125°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
–20
–30
–40
–50
–60
–70
–80
1
V
V
FUNCTIONAL BLOCK DIAGRAM
ΔV
ΔV
S
S
Figure 2. Output Balance Error vs. Frequency
= +5V
= ±5V
OUT, dm
OUT, cm
+OUT
V
–D
OCM
V+
IN
/ΔV
= 2V p-p
Low Cost, High Speed
1
2
3
4
©2005 Analog Devices, Inc. All rights reserved.
OUT, dm
NC = NO CONNECT
750Ω
1.5kΩ
10
Differential Driver
FREQUENCY (MHz)
AD8131
Figure 1.
OCM
1.5kΩ
750Ω
pin, easily level-shifting the
100
8
7
6
5
+D
NC
V–
–OUT
IN
www.analog.com
AD8131
1000

Related parts for AD8131ARZ

AD8131ARZ Summary of contents

Page 1

FEATURES High speed 400 MHz, −3 dB full power bandwidth 2000 V/μs slew rate Fixed gain of 2 with no external components Internal common-mode feedback to improve gain and phase balance: − MHz Separate input to set ...

Page 2

AD8131 TABLE OF CONTENTS Specifications..................................................................................... 3 ±D to ±OUT Specifications...................................................... ±OUT Specifications ..................................................... 4 OCM ±D to ±OUT Specifications...................................................... ±OUT Specifications ..................................................... 6 OCM Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin ...

Page 3

SPECIFICATIONS ±D TO ±OUT SPECIFICATIONS IN 25° ± OCM L, dm descriptions. All specifications refer to single-ended input and differential outputs, unless otherwise noted. Table 1. Parameter DYNAMIC ...

Page 4

AD8131 V TO ±OUT SPECIFICATIONS OCM 25° ± OCM L, dm descriptions. All specifications refer to single-ended input and differential outputs, unless otherwise noted. Table 2. Parameter DYNAMIC ...

Page 5

TO ±OUT SPECIFICATIONS IN 25° 2 OCM L, dm descriptions. All specifications refer to single-ended input and differential outputs, unless otherwise noted. Table 3. Parameter DYNAMIC PERFORMANCE ...

Page 6

AD8131 V TO ±OUT SPECIFICATIONS OCM 25° 2 OCM L, dm descriptions. All specifications refer to single-ended input and differential outputs, unless otherwise noted. Table 4. Parameter DYNAMIC ...

Page 7

ABSOLUTE MAXIMUM RATINGS 1 Table 5. Parameter Supply Voltage V OCM Internal Power Dissipation Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering 10 sec) 1 Thermal resistance measured on SEMI standard 4-layer board. 8-lead SOIC: θ = 121°C/W. JA ...

Page 8

AD8131 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Description 1 −D Negative Input Common-Mode Output Voltage. Voltage applied to this pin sets the common-mode output voltage with a ratio of OCM ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS 1500Ω 750Ω 49.9Ω AD8131 750Ω 24.9Ω 1500Ω Figure 5. Basic Test Circuit 200mV p-p OUT = ± – FREQUENCY (MHz) Figure 6. Small Signal Frequency Response ...

Page 10

AD8131 – 800Ω p-p OUT, dm –60 HD3 (V = 3V) S –70 –80 HD2 (V = 3V) S –90 HD2 (V = 5V) S –100 –110 FREQUENCY ...

Page 11

p-p OUT, dm –60 HD2 (F = 20MHz) HD3 (F = 20MHz) –70 –80 –90 HD2 (F = 5MHz) –100 HD3 (F = 5MHz) –110 200 300 400 500 600 700 800 ...

Page 12

AD8131 ± 400mV Figure 23. Large Signal Transient Response 300mV Figure 24. Large Signal Transient Response 2mV/DIV V OUT, dm 1V/DIV V +DIN Figure 25. 0.1% Settling Time V ...

Page 13

AD8131 V OUT, dm 750Ω 24.9Ω 100Ω 1500Ω Figure 29. CMRR Test Circuit –20 = ± p-p IN, cm –30 –40 ΔV –50 /ΔV OUT, dm IN, cm –60 –70 ΔV /ΔV ...

Page 14

AD8131 110 0.1k 1k 10k 100k FREQUENCY (Hz) Figure 35. Voltage Noise vs. Frequency 6 ΔV OUT, cm ΔV OCM 3 ΔV 0 –3 Δ p-p OCM –6 – FREQUENCY (MHz) ...

Page 15

OPERATIONAL DESCRIPTION +IN –OUT + AD8131 OCM –D IN –IN +OUT Figure 39. Circuit Definitions Differential voltage refers to the difference between two node voltages. For example, the output differential ...

Page 16

AD8131 THEORY OF OPERATION The AD8131 differs from conventional op amps in that it has two outputs whose voltages move in opposite directions. Like an op amp, it relies on high open-loop gain and negative feedback to force these outputs ...

Page 17

INPUT COMMON-MODE VOLTAGE RANGE IN SINGLE-SUPPLY APPLICATIONS The AD8131 is optimized for level-shifting ground referenced input signals. For a single-ended input this would imply, for example, that the voltage at −D in Figure 39 would be zero IN volts when ...

Page 18

AD8131 APPLICATIONS TWISTED-PAIR LINE DRIVER The AD8131 has on-chip resistors that provide for a gain of 2 without any external parts. Several on-chip resistors are trimmed to ensure that the gain is accurate, the common-mode rejection is good, and the ...

Page 19

FREQUENCY (MHz) Figure 42. FFT Plot for AD8131/AD9203 UNITY-GAIN, SINGLE-ENDED-TO-DIFFERENTIAL DRIVER not necessary to offset the ...

Page 20

... AD8131AR-REEL −40°C to +125°C AD8131AR-REEL7 −40°C to +125°C AD8131ARZ 1 −40°C to +125°C 1 AD8131ARZ-REEL −40°C to +125°C AD8131ARZ-REEL7 1 −40°C to +125°C AD8131ARM −40°C to +125°C AD8131ARM-REEL −40°C to +125°C AD8131ARM-REEL7 −40°C to +125°C 1 AD8131ARMZ − ...

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