TS615IPWT

TS615 Dual Wide-Band Operational Amplifier with High Output Current ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Low noise: 2.5 nV/√Hz High output current: 420 mA Very low harmonic and intermodulation distortion High slew rate: 410 V/µs -3 dB bandwidth: 40 MHz @ gain = 12 dB on 25 Ω single-ended load 21.2 Vp-p differential output swing on 50 Ω load, 12 V power supply Current feedback structure 5 V to 12 V power supply Specified for 20 Ω and 50 Ω differential load Power down function with short-circuited output to keep matching with the line in sleep mode P TSSOP14 Exposed-Pad (Plastic Micropackage) Pin Connections (top view) Description The TS615 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 TS615 is ideally suited for xDSL (High Speed Asymmetrical Digital Subscriber Line) applications. This circuit is capable of driving a 10 Ω or 25 Ω load on a range of power supplies: ±2.5 V, 5 V, ±6 V or +12 V. The TS615 is capable of reaching a -3 dB bandwidth of 40 MHz on a 25 Ω load with a 12 dB gain. This device is designed for high slew rates and demonstrates low harmonic distortion and intermodulation. The TS615 offers a power-down function to order to decrease power consumption. During sleep mode, the device short circuits its output in order to keep the impedance matched to the line. The TS615 is housed in TSSOP14 exposed-pad plastic package for a very low thermal resistance. -VCC1 1 Output1 2 +VCC1 3 +-+ 14 -VCC2 13 Output2 12 +VCC2 11 Non Inverting Input2 10 Inverting Input2 9 NC 8 NC Top View Non Inverting Input1 4 Inverting Input1 5 PowerDown 6 NC 7 dice Pad Cross Section View Showing Exposed-Pad. This pad must be connected to a (-Vcc) copper area on the PCB. Applications ■ ■ Line driver for xDSL Multiple video line driver Order Codes Part Number TS615IPWT Temperature Range -40, +85°C Package TSSOP (Thin Shrink Outline Package) Packaging Tape & Reel Marking TS615 December 2004 Revision 2 1/36 TS615 Typical Application 1 Typical Application Figure 1 shows a schematic of a typical xDSL application using the TS615. Figure 1. Differential line driver for xDSL applications 11 10 12 + _ +Vcc 13 -Vcc 12.5Ω 1/2TS615 14 Vi R2 R1 GND R4 Vo 25Ω Vo 2 12.5Ω 1:2 100Ω Vi 5 4 _ R3 3 +Vcc -Vcc 1/2TS615 + 6 Pw-Dwn 1 2/36 Absolute Maximum Ratings TS615 2 Absolute Maximum Ratings Table 1. Key parameters and their absolute maximum ratings Symbol VCC Vid Vin Toper Tstd Tj Rthjc Rthja Pmax. ESD Supply voltage 1 2 Parameter Value ±7 ±2 ±6 -40 to + 85 -65 to +150 150 4 40 3.1 1.5 2 200 1 1 100 4 Unit V V V °C °C °C °C/W °C/W W kV kV V kV kV V Differential Input Voltage 3 Input Voltage Range Operating Free Air Temperature Range Storage Temperature Maximum Junction Temperature Thermal Resistance Junction to Case Thermal Resistance Junction to Ambient Area Maximum Power Dissipation (@25°C) CDM: Charged Device Model except HBM: Human Body Model pins 4, 5, MM: Machine Model 10, 11 ESD CDM: Charged Device Model only pins HBM: Human Body Model 4, 5, 10, MM: Machine Model 11 Output Short Circuit 1) All voltage values, except differential voltage are with respect to network terminal. 2) Differential voltage are non-inverting input terminal with respect to the inverting input terminal. 3) The magnitude of input and output voltage must never exceed VCC +0.3V. 4) An output current limitation protects the circuit from transient currents. Short-circuits can cause excessive heating. Destructive dissipation can result from short circuit on amplifiers. Table 2. Operating conditions Symbol VCC Vicm Parameter Power Supply Voltage Common Mode Input Voltage Value ±2.5 to ±6 -VCC+1.5V to +VCC-1.5V Unit V V 3/36 TS615 Electrical Characteristics 3 Electrical Characteristics Table 3. VCC = ±6V, Rfb=910Ω,Tamb = 25°C (unless otherwise specified) Symbol DC performance Vio Input Offset Voltage Differential Input Offset Voltage Positive Input Bias Current Negative Input Bias Current Input(+) Impedance Input(-) Impedance Input(+) Capacitance Common Mode Rejection Ratio 20 log (∆Vic/∆Vio) Supply Voltage Rejection Ratio 20 log (∆Vcc/∆Vio) Total Supply Current per Operator Tamb Tmin. < Tamb < Tmax. Tamb = 25°C Tamb Tmin. < Tamb < Tmax. Tamb Tmin. < Tamb < Tmax. 6 7.8 3 3.2 82 54 1 15 1.25 2.1 2.5 30 3.5 mV mV Parameter Test Condition Min. Typ. Max. Unit ∆Vio Iib+ IibZIN+ ZINCIN+ CMR SVR ICC µA µA kΩ Ω pF dB dB 17 mA ∆Vic = ±4.5V Tmin. < Tamb < Tmax. 58 72 63 61 79 78 14 ∆Vcc=±2.5V to ±6V Tmin. < Tamb < Tmax. No load Dynamic performance and output characteristics ROL Open Loop Transimpedance -3dB Bandwidth Full Power Bandwidth Gain Flatness @ 0.1dB Rise Time Fall Time Settling Time Slew Rate High Level Output Voltage Low Level Output Voltage Output Sink Current Iout Output Source Current Vout = 7Vp-p, RL = 25Ω Tmin. < Tamb. < Tmax. Small Signal Vout