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Analog Devices - High Output Current Line Driver

Numéro de référence ADA4312-1
Description High Output Current Line Driver
Fabricant Analog Devices 
Logo Analog Devices 





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ADA4312-1 fiche technique
Data Sheet
Wideband, Differential, High Output Current
Line Driver with Shutdown
ADA4312-1
FEATURES
High speed
−3 dB bandwidth: 195 MHz, GDIFF = +16 V/V, RL, DIFF = 40 Ω
Differential slew rate: 2100 V/µs
Wide output swing: 18.0 V p-p differential, 12 V supply
High output current: 225 mA peak
G.hn MTPR at 16 dBm line power
−64 dBc typical at 5 MHz, referred to −58 dBm/Hz
−64 dBc typical at 17 MHz, referred to −58 dBm/Hz
−64 dBc typical at 28 MHz, referred to −58 dBm/Hz
−63 dBc typical at 31 MHz, referred to −58 dBm/Hz
−61 dBc typical at 59 MHz, referred to −58 dBm/Hz
−62 dBc typical at 82 MHz, referred to −58 dBm/Hz
Shutdown
CMOS-compatible SD pin
Shutdown quiescent current: 3 mA
ZOUT in shutdown: 10 kΩ differential (open-loop)
Resistor adjustable quiescent current
APPLICATIONS
ITU G.hn (ITU G.9960/G.9961)
HomePlug AV
HomePlug AV2
IEEE 1901
GENERAL DESCRIPTION
The ADA4312-1 is a high speed, differential, current feedback line
driver designed for half-duplex G.hn power line communication
(PLC) modems. The high output current, high bandwidth, and
slew rate of 2100 V/µs make the ADA4312-1 an excellent choice
for G.hn broadband applications that require high linearity
while driving low impedance loads.
The CMOS-compatible shutdown control pin (SD) reduces
the quiescent current to 3 mA while maintaining an output
impedance of 10 kΩ differential. The ADA4312-1 also provides
resistor adjustable quiescent current for improved efficiency in
transmit mode.
The ADA4312-1 is available in a thermally enhanced, 16-lead
LFCSP with an exposed pad to facilitate robust thermal
management. The ADA4312-1 is rated to operate over the
extended industrial temperature range of −40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
NC 1
–IN A 2
+IN A 3
GND 4
ADA4312-1
12 NC
11 –IN B
10 +IN B
9 SD
NC = NO CONNECT. DO NOT CONNECT
TO THIS PIN.
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_WQ
TYPICAL APPLICATION CIRCUIT
VMID*
1/2
ADA4312-1
1/2
VMID
=
VCC
2
ADA4312-1
Figure 2. Typical PLC Driver Application
Rev. 0
Document Feedback
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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
©2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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