TS616IDWT STMicroelectronics

TS616 Dual wide band operational amplifier with high output current Features Low noise: 2.5 nV/Hz High output current: 420 mA DW Very low harmonic and intermodulation SO-8 Exposed-pad distortion (Plastic micropackage) High slew rate: 420 V/s -3dB bandwidth: 40 MHz gain = 12 dB on 25 single-ended load 20.7 Vp-p differential output swing on 50 Pin connections (top view) load, 12 V power supply Current feedback structure OutpOutput1ut1 VCC +VCC + 11 88 5 V to 12 V power supply 22 77 InvertingInverting IInpunputt11 -- OOuuttpput2ut2 Specified for 20 and 50 differential load ++ NNon Inon Invevertrtiinngg IInpnput1ut1 33 66 IInnvertivertinngg IInnputput22 -- ++ NNoon In Innvveerrttiinngg IInpnpuutt22 VCCVCC - - 44 55 Applications didiccee PadPad Line driver for xDSL CCrross Sectiooss Section n ViewView ShShoowwinging EExxppoossed-Pad.ed-Pad. Multiple video line driver TThhis padis pad mumust best be coconnnneecctedted tto a (-Vcc) coppero a (-Vcc) copper areareaa on the on the PPCCBB Description The TS616 is a dual operational amplifier featuring a high output current of 410 mA. This driver can be configured differentially for driving signals in telecommunication systems using multiple carriers. The TS616 is ideally suited for xDSL (high speed asymmetrical digital subscriber line) applications. This circuit is capable of driving a 10 or 25 load on a range of power supplies: 2.5 V, 5 V, 6 V or +12 V. The TS616 is capable of reaching a -3 dB bandwidth of 40 MHz on 25 load with a 12 dB gain. This device is designed for high slew rates and demonstrates low harmonic distortion and intermodulation. September 2008 Rev 5 1/37 www.st.com 37Contents TS616 Contents 1 Typical application 3 2 Absolute maximum ratings and operating conditions . 4 3 Electrical characteristics . 5 4 Safe operating area . 16 5 Intermodulation distortion product 17 6 Printed circuit board layout considerations . 20 6.1 Thermal information . 20 7 Noise measurements . 23 7.1 Measurement of eN . 24 7.2 Measurement of iNn . 25 7.3 Measurement of iNp . 25 8 Power supply bypassing 26 8.1 Single power supply . 26 8.2 Channel separation and crosstalk 27 9 Choosing the feedback circuit 28 9.1 The bias of an inverting amplifier . 29 9.2 Active filtering 29 10 Increasing the line level using active impedance matching 31 11 Package information 34 12 Ordering information . 36 13 Revision history . 36 2/37