STMicroelectronics TS613IDWT

Overview

TS613IDWT from STMicroelectronics is a dual high-output-current operational amplifier designed for ADSL upstream line driving, featuring 200mA min. output current per channel, 130MHz gain-bandwidth product, 40V/µs slew rate, and specified operation into 25Ω loads at ±6V supply. It delivers low intermodulation distortion (–77dBc IM3) and ultra-low noise (3nV/√Hz, 1.2pA/√Hz), enabling simultaneous multi-carrier amplification in broadband access systems.

For engineers reviewing the TS613IDWT datasheet, TS613IDWT pinout, TS613IDWT application, or TS613IDWT equivalent, key selection criteria include its ability to drive 25Ω loads with 160mA output at ±6V, differential line driver capability in single-supply +12V configurations, THD of –69dB at 100kHz, and thermal performance enabled by the exposed-pad SO8 package.

Technical Context

The TS613 operates as a dual wideband voltage-feedback op-amp with fully independent channels, each capable of delivering ±160mA into 25Ω while maintaining stability under capacitive loading (15pF). Its internal architecture supports high closed-loop gain (AVCL = +11) up to 130MHz and achieves 60° phase margin at AVCL = 14dB with 25Ω//15pF load.

It is optimized for symmetrical ±2.5V to ±6V operation but supports single +12V biasing via mid-rail virtual ground (e.g., 47kΩ resistive divider), enabling direct integration into PCI-based ADSL remote terminals. Input common-mode range extends to (VCC+) –1V and (VCC–) +2V, supporting rail-to-rail input swing relative to supply rails.

Key Specifications

Pinout & Package

TS613IDWT is housed in an SO8 Exposed-Pad plastic micropackage (package code DW), where the exposed thermal pad is electrically isolated and intended to be soldered to a PCB copper area connected to –Vcc for optimal thermal dissipation (R_thjc = 16°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-output-current op-amp applications.

Compared with LMH6629MA/NOPB and THS3091D, TS613IDWT uniquely combines ADSL-validated intermodulation performance (–77dBc IM3), 25Ω load capability with 160mA drive, and thermally optimized SO8-DW packaging - making it irreplaceable for cost-sensitive, high-volume ADSL RT implementations requiring long-term supply stability.

Availability

TS613IDWT is available at Aetrix Electronics and suitable for ADSL remote terminal designs, broadband line interface modules, and PCI-based modem reference platforms requiring stable component supply across extended production lifecycles.

Supply support for TS613IDWT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in analog, power, and automotive ICs with over 40 years of industrial-grade reliability validation.

The TS613 belongs to ST's high-speed precision op-amp product line, engineered specifically for broadband communications infrastructure where linearity, thermal robustness, and 25Ω drive capability are non-negotiable design requirements.

FAQ

Can TS613IDWT operate from a single +12V supply?

Yes - the TS613IDWT supports single-supply operation using a mid-rail bias network (e.g., two 47kΩ resistors) to generate +6V reference for both inputs. Its input common-mode range extends to (V_CC–) +2V, and output swing reaches within 1.5V of either rail, enabling full 0–12V dynamic range in non-inverting configurations with proper AC coupling.

What is the maximum safe continuous power dissipation for TS613IDWT?

At T_A = 25°C, the SO8 Exposed-Pad package supports P_max = 2000mW, with R_thja = 60°C/W. Derating begins above 25°C at 33.3mW/°C. With a 70°C ambient and 150°C max junction temperature, continuous dissipation is limited to 1333mW - sufficient for sustained 160mA into 25Ω at ±6V (1.54W total).

Is the exposed thermal pad electrically connected to any internal node?

No - the exposed pad is electrically isolated from all pins and internal circuitry. STMicroelectronics documentation explicitly states it may be soldered to a PCB copper area tied to –V_CC for thermal conduction, but no electrical connection is required or recommended to other potentials.

Does TS613IDWT require external compensation for stability with 25Ω loads?

No - the TS613 is internally compensated for unity-gain stability and maintains ≥40° phase margin even with 25Ω//15pF loads (per datasheet Figure 10). No external compensation components are needed for ADSL line driver applications, though proper PCB layout (short traces, local decoupling) remains essential to preserve measured stability margins.