AD45048AR ,Rail-to-Rail, High Output Current, Upstream ADSL Line DriverSPECIFICATIONS °VS = ±6 V or 12 V (@ TA = 25 C, G = +10, RL = 100 Ω, unless otherwise noted). Table ..
AD45048ARZ ,Rail-to-Rail Upstream ADSL Line DriverSPECIFICATIONS °VS = ±6 V or +12 V (@ TA = 25 C, G = +10, RL = 100 Ω, unless otherwise noted). Tabl ..
AD45048ARZ-REEL ,Rail-to-Rail Upstream ADSL Line Driverapplications. Fabricated with ADI’s high speed XFCB-HV (eXtra Fast Complementary Bipolar-High Volt ..
AD45048ARZ-REEL7 ,Rail-to-Rail Upstream ADSL Line DriverFEATURES PIN CONFIGURATION Dual op amp OUT1 1 8 +VSVoltage feedback –IN1 2 7 OUT2Wide supply range: ..
AD484M1644VTA-6 , Ascend Semiconductor Corporation(64Mb SDRAM)
AD4-C211 , Dual 1 Form A Solid State Relay
AD8608AR ,Precision Low noise CMOS Rail-to-Rail Input/Output Operational AmplifiersAPPLICATIONS DACs, ASICs and other wide output swing devices Barcode Scanners Battery Powered Instr ..
AD8608AR ,Precision Low noise CMOS Rail-to-Rail Input/Output Operational AmplifiersCHARACTERISTICS Offset Voltage V V = 0V to 5V 80 300 μV CMOS -40°< T < +125°C 750 μV A Inp ..
AD8608ARUZ , Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers
AD8608ARUZ , Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers
AD8608ARZ , Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers
AD8609AR ,Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational AmplifiersSpecifications subject to change without notice. No license is granted by implication www.analog.c ..
AD45048AR
Rail-to-Rail, High Output Current, Upstream ADSL Line Driver
Rail-to-Rail Upstream ADSL Line DriverRev. 0
FEATURES
Dual op amp
Voltage feedback
Wide supply range: From 3.3 V to 24 V
Rail-to-rail output
Output swing to within 0.5 V of supply rails @ 230 mA
23 V p-p differential, RLOAD of 50 Ω from 12 V supply
High output current
Linear output current of 230 mA peak into 25 Ω
−68 dBc MTPR @ 15 dBm (100 Ω telephone line)
Low noise
4.5 nV/√Hz voltage noise density @ 100 kHz
1.5 pA/√Hz current noise density @ 100 kHz
High speed
65 MHz bandwidth (AV = 1, −3 dB)
55 V/µs slew rate (RLOAD = 25 Ω)
APPLICATIONS
Consumer xDSL modems
Twisted pair line drivers
ADSL CPE applications
(Drop in replacement for TS613ID and EL1519CS)
Audio applications
GENERAL DESCRIPTION The AD45048 ADSL CPE line driver is a dual operational
amplifier capable of driving high output current (230 mA) and
features a rail-to-rail output stage that swings to within 0.5 V of
the supply rails. The AD45048 rail-to-rail output stage surpasses
the output voltage capability of typical emitter-follower output
stages and can deliver up to 23 V p-p differentially from a single
12 V supply in ADSL CPE line driving applications. The low
distortion, high output current, and wide output dynamic range
make the AD45048 ideal for driving upstream signals in ADSL
CPE applications.
Fabricated with ADI’s high speed XFCB-HV (eXtra Fast
Complementary Bipolar-High Voltage) process, the high
bandwidth and fast slew rate of the AD45048 keep distortion to
a minimum while dissipating minimum power. The AD45048 is
available in a standard 8-lead SOIC package that can operate
from −40°C to +85°C.
PIN CONFIGURATION
OUT1
–IN1
+IN1
–VS
+VS
OUT2
–IN2
+IN204817-S
p0-001
Figure 1. 8-Lead SOIC
CENTER 86.31174378kHz1kHz/SPAN 10kHz04817-S
p0-002
dBmFigure 2. AD45048AR Upstream ADSL MTPR (13 dBm, CF = 5.3)
TABLE OF CONTENTS Specifications.....................................................................................3
Absolute Maximum Ratings............................................................4
ESD Caution..................................................................................4
Typical Performance Characteristics.............................................5
General Description.........................................................................7
Power Supply and Decoupling....................................................7
Layout Considerations..................................................................7
CPE ADSL Application.................................................................7
Transformer Selection..................................................................7
Receive Channel Considerations.................................................7
Outline Dimensions..........................................................................8
Ordering Guide.............................................................................8
REVISION HISTORY
7/04—Revision 0: Initial Version
SPECIFICATIONS VS = ±6 V or 12 V (@ TA = 25°C, G = +10, RL = 100 Ω, unless otherwise noted).
Table 1. ABSOLUTE MAXIMUM RATINGS
Table 2. Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
θJA = 112.7°C/W for SOIC package in still air based on 2S2P JEDEC PCB.
ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate
on the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy elec-
trostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation
or loss of functionality.
TYPICAL PERFORMANCE CHARACTERISTICS
10k100k1M10M1G100M04817-S
p0-017
GAIN (
FREQUENCY (Hz)Figure 3. Noninverting Small Signal Bandwidth
(VS = ±6 V, VO = 0.1 V p-p, RL = 25 Ω)
10k100k1M10M100M1G04817-S
p0-025
GAIN (
FREQUENCY (Hz)Figure 4. Inverting Small Signal Bandwidth
(VS = ±6 V, VO = 0.1 V p-p, RL = 25 Ω)
–50510152004817-S
p0-027
MTP
dBm (100Ω) Figure 5. MTPR vs. Line Power (See Schematic in Figure 8)
10k100k1M10M100M1G04817-S
p0-026
GAIN (
FREQUENCY (Hz)Figure 6. Noninverting Large Signal Bandwidth
(VS = ±6 V, VO = 1 V p-p, RL = 25 Ω)
10k100k1M10M100M1G04817-S
p0-018
GAIN (
FREQUENCY (Hz)Figure 7. Inverting Large Signal Bandwidth
(VS = ±6 V, VO = 1 V p-p, RL = 25 Ω)
04817-S
p0-014
+VIN3kΩ
–VIN
TX1
1:2100Ω+6VFigure 8. Differential Test Circuit for MTPR
1001001k10k100k1M10M100M
VOLTA
E N
ISE (
V/ H
FREQUENCY (Hz) Figure 9. Voltage Noise vs. Frequency, VS = ±6 V
1357924681004817-S
p0-028
DISTORTION (
Bc)
OUTPUT VOLTAGE (p-p)Figure 10. Single-Ended Harmonic Distortion, VS = ±6 V dc, G = +6,
RF = 499 Ω, RG = 100 Ω, RL = 25 Ω, Fundamental Frequency = 40 kHz
04817-S
p0-029
M 5.00µs Figure 11. Discrete Multitone Modulation Overdrive Recovery
(See Schematic in Figure 8)
1001001k10k100k1M10M04817-S
p0-020
CURRE
NT NOIS
(pA/ Hz)
FREQUENCY (Hz) Figure 12. Input Current Noise vs. Frequency, VS = ±6 V
10k100k1M10M100M04817-S
p0-030
OUTP
UT IMDE
DANCE
FREQUENCY (Hz) Figure 13. Output Impedance vs. Frequency
04817-S
p0-031
M 100ns Figure 14. Small Signal Pulse Response RLOAD = 1 kΩ, RFB = 500 Ω
