Overview: ISL1532 NORTECROEMMENMDEENDDISERLDE1P5F3LO3ARCNEEMWENDTEPSAIGRNTS Dual Channel Differential DSL Line Driver DATASHEET
FN6173 Rev 4.00 May 1, 2015 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.
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 set using a resistor on the IADJ pin. Two other pins (C0 and C1) can also be used to adjust supply current to one of four preset modes (full-IS, 3/4-IS, 1/2-IS and full power-down). C0 and C1 inputs are design to pull high initially. Floating these inputs will put the device in disable mode. This is contrary to EL1528 where C0 and C1 inputs pull low initially and is in the enable state when C0 and C1 pins are floated.
The ISL1532 operates on ±5V to ±15V supplies and retains its bandwidth and linearity over the plete 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 across 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 patibility with the EL1528. The ISL1532 integrates 50k pull-up resistors on C0 and C1 pins.
