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EC5602R-G Datasheet(PDF) 7 Page - E-CMOS Corporation |
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EC5602R-G Datasheet(HTML) 7 Page - E-CMOS Corporation |
7 / 12 page EC5602 High Slew Rate Rail-to-Rail Dual Operational Amplifiers E-CMOS Corp. (www.ecmos.com.tw) Page 7 of 12 6A27N Rev. F002 1 Applications Information Product Description The EC5602 rail-to-rail dual channels amplifier is built on an advanced high voltage CMOS process. It’s beyond rails input capability and full swing of output range makes itself an ideal amplifier for use in a wide range of general-purpose applications. The features of 20V/µS high slew rate, fast settling time, -3dB bandwidth of 12MHz as well as high output driving capability have proven the EC5602 a good voltage reference buffer in TFT-LCD for grayscale reference applications. High phase margin and extremely low power consumption (500µA per amplifier) make the EC5602 ideal for Connected in voltage follower mode for low power high drive applications Supply Voltage, Input Range and Output Swing The EC5602 can be operated with a single nominal wide supply voltage ranging from 4.5V to 18V with stable performance over operating temperatures of -40 °C to +85 °C. With 500mV greater than rail-to-rail input common mode voltage range and 70dB of Common Mode Rejection Ratio, the EC5602 allows a wide range sensing among many applications without having any concerns over exceeding the range and no compromise in accuracy. The output swings of the EC5602 typically extend to within 80mV of positive and negative supply rails with load currents of 5mA. The output voltage swing can be even closer to the supply rails by merely decreasing the load current. Figure 1 shows the input and output waveforms for the device in the unity-gain configuration. The amplifier is operated under ± -p sinusoid. An approximately 9.985 Vp-p of output voltage swing can be easily achieved. Figure 1. Operation with Rail-to-Rail Input and Output Output Short Circuit Current Limit A +/-120mA short circuit current will be limited by the EC5602 if the output is directly shorted to the positive or the negative supply. For an indefinitely output short circuit, the power dissipation could easily increase such that the device may be damaged. The internal metal interconnections are well designed to prevent the output continuous current from exceeding +/-30 mA such that the maximum reliability can be well maintained. |
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