ISL1532
Data Sheet
December 4, 2006
FN6173.3
Dual Channel Differential DSL Line Driver
Features
The ISL1532 is a dual channel differential amplifier designed
for driving full rate ADSL2+ signals at very low power
dissipation. The high drive capability of 450mA makes this
driver ideal for DMT designs. It contains two pairs of
wideband, high-voltage, current mode feedback amplifiers
designed on Intersil’s HS30 Bipolar SOI process for low
power consumption in DSL systems.
• 450mA output drive capability
• 44.4V differential output drive into 100Ω
P-P
• ±5V to ±15V supply operation
• MTPR of -70dB
• Operates down to 2mA per amplifier supply current
• Current control pins
These drivers achieve an MTPR distortion measurement of
better than 70dB, while consuming typically 5mA per DSL
channel of total supply current. This supply current can be
• Channel separation
- 80dB @ 500kHz
set using a resistor on the I
pin. Two other pins (C and
ADJ
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• Direct pin-to-pin replacement for EL1528
C ) can also be used to adjust supply current to one of four
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pre-set modes (full-I , 3/4-I , 1/2-I , and full power-down).
• Pb-free plus anneal available (RoHS compliant)
S
S
S
C and C inputs are design to pull high initially. Floating
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Applications
these inputs will put the device in disable mode. This is
contrary to EL1528 where C and C inputs pull low initially
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• Dual port ADSL2+ line drivers
• HDSL line drivers
and is in the enable state when C and C pins are floated.
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The ISL1532 operates on ±5V to ±15V supplies and retains
its bandwidth and linearity over the complete supply range.
The device is supplied in a thermally-enhanced
20 Ld HTSSOP and the small footprint (4x5mm) 24 Ld QFN
packages. The ISL1532 is specified for operation over the
full -40°C to +85°C temperature range.
The ISL1532 provides larger output swing at heavy loads,
higher slew rate, and higher bandwidth while maintaining
pin-to-pin drop-in compatibility with the EL1528. The
ISL1532 integrates 50k pull-up resistors on C and C pins.
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Pinouts
ISL1532 (24 LD QFN)
ISL1532 (20 Ld HTSSOP)
TOP VIEW
TOP VIEW
C0AB
C1AB
VINA+
VINB+
GND
1
2
3
4
5
6
7
8
9
20 VS-
19
18
17
16
15
14
13
12
VOUTA
VINA-
VINA+
1
2
3
4
5
6
7
19 VINA-
18 VINB-
17 VOUTB
16 VOUTC
15 VINC-
14 VIND-
13 VOUTD
VINB+
GND
VINB-
VOUTB
VOUTC
VINC-
THERMAL
PAD*
THERMAL
PAD
IADJ
NC
IADJ
VINC+
VIND+
C1CD
VINC+
VIND+
VIND-
VOUTD
C0CD 10
11 VS+
*THERMAL PAD INTERNALLY CONNECTED TO GND
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2006. All Rights Reserved.
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All other trademarks mentioned are the property of their respective owners.