DATASHEET ISL1557 FN7522 Rev.5.00 xDSL Differential Line Driver Nov 7, 2019 The ISL1557 is a dual operational amplifier designed for Features VDSL2 and ADSL line driving in DMT based solutions. This Full-range industrial temperature (FRZ only): -40C to +125C device features a high drive capability of 750mA while consuming only 6mA of supply current per amplifier and 21dBm output power capability operating from a single 4.5V to 12V supply. The driver achieves Drives up to 750mA from a +12V supply a typical distortion of -80dBc at 150kHz into a 25 load. 20V differential output drive into 21 P-P The ISL1557 is available in the thermally-enhanced 16 Ld QFN -80dBc typical driver output distortion at full output at and 10 Ld HMSOP package and is specified for operation 150kHz across -40C to +85C (IRZ, IUEZ) or -40C to +125C (FRZ) temperature ranges. The ISL1557 has control pins C0 and C1 -75dBc typical driver output distortion at 4MHz for controlling the bias and enable/disable of the outputs. -71dBc typical driver output distortion at 10MHz These controls allow for lowering the power to fit the -75dBc typical driver output distortion at 17MHz performance/power ratio for the application. Low quiescent current of 6mA per amplifier The ISL1557 is ideal for ADSL2+, SDSL, HDSL2, and VDSL line driving applications, including both 14.5dBm and 21dBm Supply range applications. - ISL1557IRZ, ISL1557FRZ 2.25V to 6V, 4.5V to 12V - ISL1557IUEZ 4.5V to 12V Related Literature 300MHz bandwidth For a full list of related documents, visit our website Thermal shutdown ISL1557 product page Pb-free (RoHS compliant) Applications VDSL2 line drivers Power line communications line drivers ADSL2+ CPE line driving G.SHDSL and HDSL2 line drivers +6V 14 VS+ 3 INA+ OUTA 16 A 750 12.5 1:2 INA- 2 8 C0 BIAS 250 100 AFE 9 C1 INB- 11 750 12.5 OUTB 13 B 10 INB+ GND VS- 4 7 -6V FIGURE 1. TYPICAL OPERATING CIRCUIT FN7522 Rev.5.00 Page 1 of 15 Nov 7, 2019ISL1557 Ordering Information PART NUMBER PART TEMP. TAPE AND REEL PACKAGE PKG. (Notes 2, 3) MARKING RANGE (C) (UNITS) (Note 1) (RoHS COMPLIANT) DWG. ISL1557FRZ 155 7FRZ -40 to +125 - 16 Ld 4x4 QFN L16.4x4H ISL1557FRZ-T7 155 7FRZ -40 to +125 1k 16 Ld 4x4 QFN L16.4x4H ISL1557IRZ 155 7IRZ -40 to +85 - 16 Ld 4x4 QFN L16.4x4H ISL1557IRZ-T7 155 7IRZ -40 to +85 1k 16 Ld 4x4 QFN L16.4x4H ISL1557IUEZ BBVAA -40 to +85 - 10 Ld HMSOP M10.118B ISL1557IUEZ-T7 BBVAA -40 to +85 1.5k 10 Ld HMSOP M10.118B ISL1557IRZ-EVAL Evaluation Board NOTES: 1. Refer to TB347 for details about reel specifications. 2. These Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), refer to the ISL1557 product information page. For more information about MSL, refer to TB363. Pin Configurations ISL1557 ISL1557 (16 LD QFN) (10 LD HMSOP) TOP VIEW TOP VIEW VS+ 1 10 OUTB NC 2 9 INB- 16 15 14 13 OUTA 3 V * 8 INB+ S- 1 12 NC NC INA- 4 7 C1 INA- 2 11 INB- V * INA+ 5 6 C0 S- INA+ 3 10 INB+ GND 4 9 C1 576 8 *THERMAL PAD MUST BE CONNECTED TO NEGATIVE SUPPLY: V . *THERMAL PAD MUST BE CONNECTED TO NEGATIVE SUPPLY: V . S- S- QFN PACKAGE CAN BE USED IN SINGLE AND DUAL SUPPLY HMSOP PACKAGE CAN BE USED IN SINGLE SUPPLY APPLICATIONS APPLICATIONS. ONLY. FN7522 Rev.5.00 Page 2 of 15 Nov 7, 2019 NC OUTA NC NC VS- VS+ OUTB C0