High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 With features of 40V/μs high slew rate and 500ns of fast settling time, as well as 100mA (sink and source) of high output driving capability, the EC5614 is ideal for the requirements of flat panel Thin Film Transistor Liquid Crystal Displays (TFT-LCD) panel reference buffers application. Due to insensitive to power supply variation, EC5614 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 EC5614 is offered in space saving 14-Pin TSSOP package and specified over the -40°C to +85°C temperature range. FEATURES • Wide Supply Voltage Range 4.5V to 20V • Input range 500mV beyond the rails • Rail-to-Rail Output Swing • Large DC Voltage Gain 90dB (Typical) • High slew rate 40V/μs • Protection Function • Over Temperature Protection (OTP) • Over Current Protection (OCP) • -3dB Bandwidth (unit gain) 30MHz • ±350mA Output Short Circuit Current PIN ASSIGNMENT • Unity-gain stable • Ultra-small Package TSSOP-14 • TFT-LCD Reference Driver VOUTA 1 VINA - 2 VINA + 3 Vs + 4 VINB+ 5 VINB - 6 VOUTB 7 A • Touch-Screen Display - - • Wireless LANs 14 VOUTD 13 VIND- 12 VIND+ 11 VS- 10 VINC+ 9 VINC- 8 VOUTC D APPLICATIONS + + • Personal Communication Devices • Direct Access Arrangement • Personal Digital Assistant (PDA) + • Sampling ADC Amplifier • ADC/DAC Buffer C B • Active Filter + - - • Electronic Notebook TSSOP-14 • Office Automation GENERAL DESCRIPTION The EC5614 is a 100mA output current rail-to-rail quad channels operational amplifier with wide supply range from 4.5V to 20V while consumes only 2.0mA per channel. 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 EC5614 to perform more stable than other devices in Internet applications. E-CMOS Corp. (www.ecmos.com.tw) Page 1 of 9 4J24N Rev.F001 ± E High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 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+20V Input Voltage VS- -0.5V, VS+＋0.5V Maximum Continuous Output Current 100mA Maximum Die Temperature +125°C Storage Temperature Operating Temperature Lead Temperature ESD Voltage -65°C to +150°C -40°C to +85°C 260°C 2kV 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 IB Input Bias Current 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 Low VOH Output Swing High ISC Short Circuit Current IOUT Output Current Condition Min Typ Max Units VCM= 0V [1] VCM= 0V 2 5 2 1 1.35 for VIN from -0.5V to 5.5V -4.5V≦VOUT≦ IL=-5mA IL=5mA 12 50 mV µV/°C nA -0.5 50 70 pF V dB 75 90 dB -4.92 -4.85 4.85 4.92 ±350 ±100 mV V mA mA 550 mA 80 2 dB mA 40 500 30 20 50 75 150 V/µs ns MHz MHz Degrees dB °C +5.5 Source Current: I load IPK Peak Output Current VS+=18V, VIN= VS+/2 VOUT to GND Sink Current: I load VS-=0V VOUT to VS+ Power Supply Performance PSRR Power Supply Rejection Ratio VS is moved from ±2.25V to ±7.75V IS Supply Current (Per Amplifier) No Load, Dynamic Performance SR Slew Rate [2] -4.0V≦VOUT≦4.0V, 20% to 80% 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 TSD Thermal Shutdown 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges E-CMOS Corp. (www.ecmos.com.tw) Page 3 of 9 60 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 Offset Voltage TYPICAL PERFORMANCE CURVES Quantity(Amplifiers) 1750 1500 1250 1000 數列1 750 500 250 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 Figure (d) Large Signal Transient Response E-CMOS Corp. (www.ecmos.com.tw) Figure (c) Input beyond the rails Figure (e) Large Signal Transient Response Page 3 of 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 APPLICATIONS INFORMATION Product Description The EC5614 rail-to-rail quad channels amplifier is built on an advanced high voltage CMOS process. It’s beyond rails input capability and full swing of output range made 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, 20MHz of GBWP as well as high output driving capability have proven the EC5614 a good voltage reference buffer for TFT-LCD for applications. High phase margin make the EC5614 ideal for Connected in voltage follower mode for high drive applications Supply Voltage, Input Range and Output Swing The EC5614 can be operated with a single nominal wide supply voltage ranging from 4.5V to 20V 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 80dB of Common Mode Rejection Ratio, the EC5614 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 EC5614 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 10Vp-p sinusoid. An approximately 9.985 Vp-p of output voltage swing can be easily achieved. well designed to prevent the output continuous current from exceeding +/-100mA such that the maximum reliability can be well maintained. Output Phase Reversal The EC5614 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. Figure 2. Operation with Beyond-the Rails Input Power Dissipation The EC5614 is designed for maximum output current capability. Even though momentary output shorted to ground causes little damage to the device. For the high drive amplifier EC5614, 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: T TA max PD max J max JA Where: TJmax = Maximum Junction Temperature TAmax= Maximum Ambient Temperature Figure 1. Operation with Rail-to-Rail Input and Output. ΘJA = Thermal Resistance of the Package Output Short Circuit Current Limit A +/-350mA short circuit current will be limited by the EC5614 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 The maximum power dissipation actually produced E-CMOS Corp. (www.ecmos.com.tw) PDmax = Maximum Power Dissipation in the Package. 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 Page 4 of 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 PDmax = ∑i[VS × ISmax + (VO – VS-) × IL] When sinking. Where: i = 1 to 4 E-CMOS VS = Total Supply Voltage EC5614 ISmax = Maximum Supply Current Per Amplifier VO = Maximum Output Voltage of the Application IL= Load current OTP / OCP Protection RL= Load Resistance = (VS+ – VO)/IL = (VO – VS-)/ IL Package TSSOP14 TSSOP14 1.98x2.23 TSSOP14 3x3 θja (℃/W) 165 75 59 Figure 3. Typical Application Configuration. Driving Capacitive Loads The EC5614 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 EC5614 ideally for applications such as TFT LCD panel buffers, ADC input amplifiers, etc. As load capacitance increases on the device output, resulting in additional pole in the op amp’s feedback loop. Depending on the application, a small value of series resistance must be placed in series with the output (usually between 5 Ω and 50 Ω ). However, the op amp remains stable because the load capacitance and the series resistance create a zero that cancels the effect of this pole. It improves the performance of the device to ensure stability and fast settling with very large capacitive loads. Figure3. shows the typical application configuration. E-CMOS Corp. (www.ecmos.com.tw) Power Supply Bypassing and Printed Circuit Board Layout With high phase margin, the EC5614 performs stable gain at high frequency. Like any high-frequency 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 0.1µF 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 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 OUTLINE DIMENSIONS (Dimensions shown in millimeters) TSSOP (Thin-Shrink Small Outline Package) E-CMOS Corp. (www.ecmos.com.tw) Page 6 of 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 TSSOP (Thin-Shrink Small Outline Package, Exposed Pad) VARIATIONS (ALL DIMENSIONS SHOWN IN MM) △ 2 △ 1 A1 SYMBOLS A STANDARD THERMALLY ENHANCED A2 b D D1 E2 E1 E □e L1 L S θ MIN. 0.05 0.00 0.80 0.19 4.90 1.92 1.67 4.30 NOM. MAX. 1.20 0.15 0.15 1.00 1.05 0.30 5.00 5.10 2.23 2.54 1.98 2.29 4.40 4.50 6.40 BSC 0.65 BSC 1.00 BSC 0.50 0.60 0.75 0.20 0° 8° NOTES: 1. JEDEC OUTUNE STANDARD: MO-153 AB-1 THERMALLY ENHANCED: MO-153 ABT-1 2. DIMENSION ‘D’DOES NGAOT INCLUDE MOLD FLASH. PROTRUSION OR GATE BURRS. MOLD FLASH. PROTRUSIONS OR GADE BURRS SHALL NOT EXCEED 0.15 PER SIDE. 3. DIMENSION ‘E1’ DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 PER SIDE. 4. DIMENSION ‘B’ DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08MM TOTAL IN EXCESS OF THE ‘B’ DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THELOWER RADIUS OF THE FOOT. MNMUM SPACE BETWEEN PROTRUSION AND ADJACENT LEAD IS 0.07 MM. 5. DIMENSIONS ‘D’ AND ‘E1’ TO BE BETERMNED AT DATUM PLANEE E-CMOS Corp. (www.ecmos.com.tw) Page 7 of 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 TSSOP (Thin-Shrink Small Outline Package, Exposed Pad) SYMBOL A A1 A2 A3 b b1 c c1 D D1 E2 E1 E e L L1 θ MILLIMETER MIN NOM MAX 1.20 0.05 0.15 0.90 1.00 1.05 0.39 0.44 0.49 0.20 0.30 0.19 0.22 0.25 0.13 0.19 0.12 0.13 0.14 4.86 4.96 5.06 2.90 3.00 3.10 2.90 3.00 3.10 4.30 4.40 4.50 6.25 6.40 6.55 0.65BSC 0.45 0.75 1.00BSC 0 8° E-CMOS Corp. (www.ecmos.com.tw) Page 8 of 9 4J24N Rev.F001 High Performance Rail-to-Rail Quad Operational Amplifiers EC5614 ORDERING INFORMATION PART NUMBER EC5614I-G EC5614I-HG EC5614I-H1G E-CMOS Corp. (www.ecmos.com.tw) TOP MARK EC5614-G EC5614HG EC5614H1 PACKAGE Green mode TSSOP-14 Green mode TSSOP-14(EP Size: 1.98mm x 2.23mm) Green mode TSSOP-14(EP Size: 3mm x 3mm) Page 9 of 9 4J24N Rev.F001