The ISL1535 is a very low power dual channel differentiated amplifier designed for central office line driving for DMT ADSL2+ solutions. This device features a high drive capability of 600mA while consuming 5.2mA of supply current per amplifier from ±12V supplies. This driver achieves a typical distortion of less than -75dBc, at 1MHz into a 50Ω load. The ISL1535 is available in 28 Ld HTSSOP package. This device is specified for operation over the full -40°C to +85°C temperature range. The ISL1535 has two control pins, C0 and C1, per channel. With the selection of C0 and C1, the device can be set into full-IS power, 3/4-IS power, 1/2-IS power, and power-down disable modes. The ISL1535 maintains excellent distortion and load driving capabilities even in the lowest power settings. The ISL1535 has extended bandwidth, low THD and high slew rate for ADSL2+ applications.
The ISL1535 is a very low‑power dual‑channel differentiated amplifier designed for central‑office line driving in DMT ADSL2+ solutions. It provides up to 400 mA drive at 16 Vpp from a +12 V supply and operates over a temperature range of –40 °C to +85 °C.
The device features two control pins per channel (Cg and C1) that allow selection of full‑lg, 3/4‑lg, 1/2‑lg, or power‑down modes. Electrical specifications include a typical bandwidth of 100 MHz, quiescent current of 5.2 mA per amplifier, and typical distortion of –75 dBc at 1 MHz into 50 Ω.
| Drive current | 400 mA at 16 Vpp |
|---|---|
| Differential output drive (100 Ω) | 21.4 Vpp |
| Quiescent current (1/2‑lg mode) | 5.2 mA per amplifier |
| Bandwidth | 100 MHz (Ay = 10) |
| Control pins per channel | 2 (Cg and C1) |
It operates from a +12 V supply.
Each channel has two control pins, Cg and C1.
The typical quiescent current is 5.2 mA per amplifier in 1/2‑lg mode.
The device provides a bandwidth of 100 MHz (Ay = 10).