EC5601 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP from 6V to 18V. It provides 0.5V beyond the supply rails of common mode input range and capability of rail-to-rail output swing as well. This enables the amplifier to offer maximum dynamic range at any supply voltage among many applications. A 20MHz gain bandwidth product allows EC5601 to perform more stable than other devices in Internet applications. With features of 40V/μs high slew rate and 200ns of fast settling time, as well as 100mA (sink and source) of high output driving capability, the EC5601 is ideal for the requirements of flat panel Thin Film Transistor Liquid Crystal Displays (TFT-LCD) panel grayscale reference buffers application. Due to insensitive to power supply variation, EC5601 offers flexibility of use in multitude of applications such as battery power, portable devices and anywhere low power consumption is concerned. With standard operational amplifier pin assignment, the EC5601 is offered in a space saving 6-Pin SOT-26 package and specified over the -40°C to +85°C temperature range. FEATURES • Wide supply voltage range 6V ~ 18V • Input range 500mV beyond the rails • Unity-gain stable • Rail-to-rail output swing • High slew rate 40V/μs • GBWP 20MHz • 30MHz -3dB Bandwidth • Ultra-small Package SOT-25、TSOT25、 SOT-26、TSOT-26 and TSSOP-8 APPLICATIONS • TFT-LCD Reference Driver • Touch-Screen Display • Wireless LANs • Personal Communication Devices • Direct Access Arrangement PIN ASSIGNMENT • Personal Digital Assistant (PDA) • Active Filter VS+ IN- VS+ NC IN- 5 4 6 5 4 • Sampling ADC Amplifier • ADC/DAC Buffer • Electronic Notebook • Office Automation • Portable Electronics 1 2 3 1 2 3 VOUT VS- IN+ VOUT VS- IN+ SOT25/TSOT25 GENERAL DESCRIPTION SOT26/TSOT26 The EC5601 is a rail-to-rail one channel operational amplifier with wide supply range TSSOP-8 Page 1 of 11 2010/11/29 EC5601 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP Functional Pin Description Pin Name VOUT VSIN+ INVS+ Pin Function Operational Amplifier Output IC GROUND or Negative power supply Operational Amplifier Non-Inverting Input Operational Amplifier Inverting Input Supply Voltage VCC can range from 6V to 18V ABSOLUTE MAXIMUM RATINGS (TA = 25 °C) Values beyond absolute maximum ratings may cause permanent damage to the device. These are stress ratings only; functional device operation is not implied. Exposure to AMR conditions for extended periods may affect device reliability. Supply Voltage between VS+ and VS+18V Input Voltage VS- -0.5V, VS+ +0.5V Maximum Continuous Output Current 100mA Storage Temperature Maximum Die Temperature Operating Temperature Lead Temperature -65°C to +150°C +125°C -40°C to +85°C 260°C Important Note: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA ELECTRICAL CHARACTERISTICS VS+= +5V, VS - = -5V, RL = 10kΩ and CL = 10pF to 0V, TA = 25°C unless otherwise specified. Parameter Description Input Characteristics VOS Input Offset Voltage TCVOS Average Offset Voltage Drift Bias Current IB Input RIN Input Impedance CIN Input Capacitance CMIR Common-Mode Input Range CMRR Common-Mode Rejection Ratio AVOL Open-Loop Gain Output Characteristics VOL Output Swing LowVOH ISC IOUT Ipeak Output Swing High Short Circuit Current Output Current Ipeak Current Condition Min VCM= 0V [1] VCM= 0V Typ 2 5 2 1 1.35 for VIN from -5.5V to 5.5V -5.0 50 70 0.5V ≦VOUT≦4.5V 75 90 -7.92 VS+=8V,VS-=-8V,IL=-5mA VS+=8V,VS-=-8V,IL=5mA (Note 1) 7.85 Source Current: I VS+=14V, VS-=0V load VOUT to GND (Note 2) Sink Current: I load VOUT to VDD 7.92 ±350 ±100 Max Units 12 mV µV/°C 50 nA GΩ pF +5.5 V dB dB 7.85 V V mA mA 450 mA 80 dB 3 mA Power Supply Performance PSRR IS Power Supply Rejection Ratio Supply Current VS is moved from ±2.25V to ±7.75V No Load Page 2 of 11 60 2010/11/29 EC5601 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP ELECTRICAL CHARACTERISTICS VS+= +5V, VS - = -5V, RL = 10kΩ and CL = 10pF to 0V, TA = 25°C unless otherwise specified. Parameter Description Dynamic Performance SR Slew Rate [2] Condition Min Typ VS+=8V,VS-=-8V, -4.0V≦VOUT≦4.0V, 20% to 80% 30 40 V/µs 500 30 20 50 75 Ns MHz MHz Degree s dB 150 ℃ tS Settling to +0.1% (AV = +1) (AV = +1), VO=2V Step BW -3dB Bandwidth RL = 10kΩ, CL=10pF GBWP Gain-Bandwidth Product RL = 10kΩ, CL=10pF PM Phase Margin RL = 10kΩ, CL = 10 pF CS Channel Separation f = 1 MHz Temperature Performance Temp Thermal Shutdown 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges Max Units Note 1: Short circuit current is tested with one output at a time. Note 2: Ipeak current is for a 1μs pulsed current only , not to exceed thermal characteristics of package. TYPICAL PERFORMANCE CURVES 2500 Quantity (Amplifiers) 2250 2000 1750 1500 1250 1000 750 500 250 0 -15 -13 -11 -9 -7 -5 -3 -1 1 3 5 7 9 11 13 15 Input Offset (mV) Figure (a) Input Offset Voltage Distribution Figure (b) Rail to Rail Capability Page 3 of 11 Figure (c) Input Beyond the Rails Signal 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 Figure (e) Large Signal Transient Response Figure (d) Large Signal Transient Response APPLICATIONS INFORMATION Product Description The EC5601 rail-to-rail one channel 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 40V/μs high slew rate, fast settling time, 30MHz of GBWP as well as high output driving capability have proven the EC5601 a good voltage reference buffer in TFT-LCD for grayscale reference applications. High phase margin and extremely low power consumption make the EC5601 ideal for connected in voltage follower mode for low power high drive applications. Supply Voltage, Input Range and Output Swing The EC5601 can be operated with a single nominal wide supply voltage ranging from 6V to 18V with stable performance over operating temperature 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 EC5601 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 EC5601 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 ±5V supply with a 10KΩ load connected to GND. The input is a 10Vp-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 +/-350mA short circuit current will be limited by the EC5601 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 +/-100mA such that the maximum reliability can be well maintained. Output Phase Reversal The EC5601 is designed to prevent its output from being phase reversal as long as the input voltage is limited from VS- -0.5V to VS+ +0.5V. Figure 2 shows a photo of the device output with its input voltage driven beyond the supply rails. Although the phase of the device's output will not be reversed, the input's over-voltage should be avoided. An improper input voltage exceeds supply range by more than 0.6V may result in an over stress damage. Page 4 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP Figure 2. Operation with Beyond-the Rails Input Power Dissipation The EC5601 is designed for maximum output current capability. Even though momentary output shorted to ground causes little damage to device. For the high drive amplifier EC5601, it is possible to exceed the 'absolute-maximum junction temperature' under certain load current conditions. Therefore, it is important to calculate the maximum junction temperature for the application to determine if load conditions need to be modified for the amplifier to remain in the safe operating area. The maximum power dissipation allowed in a package is determined according to: PDmax = EC5601 Driving Capacitive Loads The EC5601 is designed to drive a wide range of capacitive loads. In addition, the output current handling capability of the device allows for good slewing characteristics even with large capacitive loads. The combination of these features make the EC5601 ideally for applications such as TFT LCD panel grayscale reference voltage buffers, ADC input amplifiers, etc. As load capacitance increases, however, the -3dB bandwidth of the device will decrease and the peaking increase. Depending on the application, it must be necessary to reduce peaking and to improve device stability. To improve device stability, a small v al u e of series resistor (usually between 5Ωand 50Ω) must be placed in series with the output. The advantage is that it improves the settling and overshooting performance with very large capacitive loads. Figure 3. shows the typical application configuration. TJmax - TAmax Θ JA Where: T Jmax = Maximum Junction Temperature T Amax= Maximum Ambient Temperature ΘJA = Thermal Resistance of the Package PDmax = Maximum Power Dissipation in the Package. The maximum power dissipation actually produced by an IC is the total quiescent supply current times the total power supply voltage, plus the power in the IC due to the loads, or: PDmax =∑i[VS * ISmax + (VS+ – VO) * IL] When sourcing, and PDmax = ∑i[VS * ISmax + (VO – VS-) * IL] When sinking. Where: i = 1 to 1 VS = Total Supply Voltage ISmax = Maximum Supply Current Per Amplifier VO = Maximum Output Voltage of the Application IL= Load current RL= Load Resistance = (VS+ – VO)/IL = (VO – VS-)/ IL A calculation for RL to prevent device from overheat can be easily solved by setting the two PDmax equations equal to each other. Figure 3. Typical Application Configuration. Power Supply Bypassing and Printed Circuit Board Layout With high phase margin, the EC5601 performs stable gain at high frequency. Like any highfrequency device, good layout of the printed circuit board usually comes with optimum performance. Ground plane construction is highly recommended, lead lengths should be as short as possible and the power supply pins must be well bypassed to reduce the risk of oscillation. For normal single supply operation, where the VS- pin is connected to ground, a 0.1 µF ceramic capacitor should be placed from VS+ pin to VS- pin as a bypassing capacitor. A 4.7µF tantalum capacitor should then be connected in parallel, placed in the region of the amplifier. One 4.7µF capacitor may be used for multiple devices. This same capacitor combination should be placed at each supply pin to ground if split supplies are to be used. Page 5 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 ORDERING INFORMATION PART NO TOP MARK PACKAGE TYPE EC5601B2-G EC5601 XXXXX SOT-25 GREEN PACKAGE “XXXX” is lot code EC5601T2-G EC5601 XXXXX TSOT-25 GREEN PACKAGE “XXXX” is lot code EC5601B3-G EC5601 XXXXX SOT-26 GREEN PACKAGE “XXXX” is lot code EC5601 XXXXX EC5601 XXXXX YYWW TSOT-26 GREEN PACKAGE “XXXX” is lot code TSSOP-8 GREEN PACKAGE “XXXX” is lot code “YYWW” is date code EC5601T3-G EC5601I-G Page 6 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 OUTLINE DIMENSIONS (Dimensions shown in millimeters) SOT-26 Page 7 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 SOT-25 Page 8 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 TSSOP-8 Page 9 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 TSOT-26 Page 10 of 11 2010/11/29 High Slew Rate Rail-to-Rail Single Operational Amplifiers with OTP EC5601 TSOT-25 VARIATION (ALL DIMENSIONS SHOWN IN MM) SYMBOL A A1 A2 b c D E E1 e e1 L L1 L2 R R1 θ θ1 MIN. 0.750 0.000 0.700 0.350 0.100 2.800 2.600 1.500 0.370 0.100 0.100 0° 4° NOM. 0.750 2.900 2.800 1.600 0.950 BSC 1.900 BSC 0.450 0.600 REF 0.250 BSC 4° 10° MAX. 0.800 0.050 0.775 0.500 0.200 3.000 3.000 1.700 0.600 0.250 8° 12° NOTE： 1. JEDEC OUT LINE：N/A Page 11 of 11 2010/11/29