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PDF AD8133 Data sheet ( Hoja de datos )
| Número de pieza | AD8133 | |
| Descripción | Triple Differential Driver | |
| Fabricantes | Analog Devices | |
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Data Sheet
FEATURES
Triple high speed fully differential driver
225 MHz −3 dB large signal bandwidth
Easily drives 1.4 V p-p video signal into source-terminated
100 Ω UTP cable
1600 V/µs slew rate
Fixed internal gain of 2
Internal common-mode feedback network
Output balance error −60 dB @ 50 MHz
Differential input and output
Differential-to-differential or single-ended-to-differential
operation
Adjustable output common-mode voltage
Output pull-down feature for line isolation
Low distortion: 64 dB SFDR @ 10 MHz on 5 V supply,
RL, dm = 200 Ω
Low offset: 4 mV typical output referred on 5 V supply
Low power: 26 mA @ 5 V for three drivers
Wide supply voltage range: +5 V to ±5 V
Available in space-saving packaging: 4 mm × 4 mm LFCSP
APPLICATIONS
KVM (keyboard-video-mouse) networking
UTP (unshielded twisted pair) driving
Differential signal multiplexing
GENERAL DESCRIPTION
The AD8133 is a major advancement beyond using discrete
op amps for driving differential RGB signals over twisted pair
cable. The AD8133 is a triple, low cost differential or single-
ended input to differential output driver, and each amplifier has
a fixed gain of 2 to compensate for the attenuation of line
termination resistors. The AD8133 is specifically designed for RGB
signals but can be used for any type of analog signals or high speed
data transmission. The AD8133 is capable of driving either
Category 5 unshielded twisted pair (UTP) cable or differential
printed circuit board transmission lines with minimal signal
degradation.
The outputs of the AD8133 can be set to a low voltage state to
be used with series diodes for line isolation, allowing easy
differential multiplexing over the same twisted pair cable. The
AD8133 driver can be used in conjunction with the AD8129
and AD8130 differential receivers.
Triple Differential Driver
with Output Pull-Down
AD8133
FUNCTIONAL BLOCK DIAGRAM
OPD 1
VS– 2
–IN A 3
+IN A 4
VS– 5
–OUT A 6
24 23 22 21 20 19
AD8133 18 VOCMC
17 VS+
16 –IN C
15 +IN C
A B C 14 VS–
13 –OUT C
7 8 9 10 11 12
Figure 1.
0
∆VOUT, dm = 2V p-p
–10 ∆VOUT, cm/∆VOUT, dm
–20
–30
VS = ±5V
–40
–50
VS = +5V
–60
–70
–80
–90
–100
1
10 100
FREQUENCY (MHz)
Figure 2. Output Balance vs. Frequency
500
Manufactured on Analog Devices’ next generation XFCB
bipolar process, the AD8133 has a large signal bandwidth of
225 MHz and a slew rate of 1600 V/µs. The AD8133 has an
internal common-mode feedback feature that provides output
amplitude and phase matching that is balanced to −60 dB at
50 MHz, suppressing harmonics and minimizing radiated
electromagnetic interference (EMI).
The output common-mode level is easily adjustable by applying
a voltage to the VOCM input pin. The VOCM input can also be used
to transmit signals on the output common-mode voltages.
The AD8133 is available in a 24-lead LFCSP package and can
operate over the temperature range of −40°C to +85°C.
Rev. A
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 ©2004–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
AD8133
Data Sheet
VS = 5 V, VOCM = 2.5 V @ 25°C, RL, dm = 200 Ω, unless otherwise noted. TMIN to TMAX = −40°C to +85°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 0.1%
Isolation Between Amplifiers
DIFFERENTIAL INPUT CHARACTERISTICS
Input Common-Mode Voltage Range
Input Resistance
Input Capacitance
DC CMRR
DIFFERENTIAL OUTPUT CHARACTERISTICS
Differential Signal Gain
Output Voltage Swing
Output Offset Voltage
Output Offset Drift
Output Balance Error
Output Voltage Noise (RTO)
Output Short-Circuit Current
VOCM PERFORMANCE
VOCM DYNAMIC PERFORMANCE
−3 dB Bandwidth
Slew Rate
DC Gain
VOCM INPUT CHARACTERISTICS
Input Voltage Range
Input Resistance
Input Offset Voltage
Input Offset Voltage Drift
DC CMRR
POWER SUPPLY
Operating Range
Quiescent Current
PSRR
OUTPUT PULL-DOWN PERFORMANCE
OPD Input Low Voltage
OPD Input High Voltage
OPD Input Bias Current
OPD Assert Time
OPD De-Assert Time
Output Voltage When OPD Asserted
Conditions
VO = 0.2 V p-p
VO = 2 V p-p
VO = 0.2 V p-p
VO = 2 V p-p, 25% to 75%
VO = 2 V Step
f = 10 MHz, between Amplifiers A and B
Differential
Single-Ended Input
Differential
ΔVOUT, dm/ΔVIN, cm, ΔVIN, cm = ±1 V
ΔVOUT, dm/ΔVIN, dm; ΔVIN, dm = ±1 V
Each Single-Ended Output
TMIN to TMAX
ΔVOUT, cm/ΔVIN, dm, ΔVOUT, dm = 2 V p-p, f = 50 MHz
DC
f = 1 MHz
ΔVOCM = 100 mV p-p
VOCM = −1 V to +1 V, 25% to 75%
ΔVOCM = ±1 V, TMIN to TMAX
TMIN to TMAX
ΔVO, dm/ΔVOCM; ΔVOCM = ±1 V
ΔVOUT, dm/ΔVS; ΔVS = ±1 V
Each Output, OPD Input @ VS+
Min
1.925
VS− + 1.25
−24
0.980
−15
+4.5
Typ
400
200
50
1400
14
75
0 to 5
1.5
1.13
1
−50
1.960
+4
±30
−60
−70
25
90
290
700
0.995
1.25 to 3.85
70
+2
±50
−42
26
−84
VS− to VS+ − 3.85
VS+ − 2.85 to VS+
63
100
100
VS− + 0.79
Max
2.000
VS+ − 1.15
+24
−58
1.005
+15
±6
27
−76
80
VS− + 0.82
Unit
MHz
MHz
MHz
V/µs
ns
dB
V
kΩ
kΩ
pF
dB
V
mV
µV/°C
dB
dB
nV/√Hz
mA
MHz
V/µs
V/V
V
kΩ
mV
µV/°C
dB
V
mA
dB
V
V
µA
ns
ns
V
Rev. A | Page 4 of 17
5 Page 
AD8133
–40
AMPLIFIER A TO
AMPLIFIER B
VIN, dm = 200mV p-p
–50 ∆VOUT, dm B/∆VIN, dm A
–60
–70 VIN, dm = 2V p-p
–80
–90
–100
–110
1
10 100
FREQUENCY (MHz)
1000
Figure 23. Amplifier-to-Amplifier Isolation vs. Frequency
–20
∆VOCM = 200mV p-p
–30
–40
–50 ∆VOUT, dm/∆VOCM
–60
–70
–80
1
10 100
FREQUENCY (MHz)
1000
Figure 24 VOCM CMRR vs. Frequency
2
1 ∆VOUT, cm/∆VOCM
0
–1
–2
–3 VS = +5V
–4
–5
–6
–7
–8
–9
–10
1
VOUT, cm = 100mV p-p
VOUT, cm TAKEN SINGLE ENDED
10 100
FREQUENCY (MHz)
VS = ±5V
1000
Figure 25. VOCM Frequency Response for
Various Power Supply Voltages
Data Sheet
30
29
28
27
26
25
24
23
22
21
20
–40 –30
VS = ±5V
VS = +5V
–10 10 30 50
TEMPERATURE (°C)
70 85
Figure 26. Power Supply Current vs. Temperature
1.5
VS = +5V
VOUT, cm = 2V p-p
1.0
VS = ±5V
0.5
0
–0.5
–1.0
–1.5
5ns/DIV
Figure 27. VOCM Large Signal Transient Response
for Various Power Supply Voltages
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–5 –4 –3 –2 –1 0 1 2 3 4
VOCM INPUT VOLTAGE
5
Figure 28. VOCM Bias Current vs. VOCM Input Voltage
Rev. A | Page 10 of 17
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AD8133.PDF ] | |
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