EL2045 ® Data Sheet February 11, 2005 Low-Power 100MHz Gain-of-2 Stable Operational Amplifier Features • 100MHz gain-bandwidth at gain-of-2 The EL2045 is a high speed, low power, low cost monolithic operational amplifier built on Elantec's proprietary complementary bipolar process. The EL2045 is gain-of-2 stable and features a 275V/µs slew rate and 100MHz gainbandwidth at gain-of-2 while requiring only 5.2mA of supply current. The power supply operating range of the EL2045 is from ±18V down to as little as ±2V. For single-supply operation, the EL2045 operates from 36V down to as little as 2.5V. The excellent power supply operating range of the EL2045 makes it an obvious choice for applications on a single +5V or +3V supply. The EL2045 also features an extremely wide output voltage swing of ±13.6V with VS = ±15V and RL = 1kΩ. At ±5V, output voltage swing is a wide ±3.8V with RL = 500Ω and ±3.2V with RL = 150Ω. Furthermore, for single-supply operation at +5V, output voltage swing is an excellent 0.3V to 3.8V with RL = 500Ω. • Gain-of-2 stable • Low supply current - 5.2mA at VS = ±15V • Wide supply range - ±2V to ±18V dual-supply and 2.5V to 36V single-supply • High slew rate - 275V/µs • Fast-settling - 80ns to 0.1% for a 10V step • Low differential gain - 0.02% at AV = +2, RL = 150Ω • Low differential phase - 0.07° at AV = +2, RL = 150Ω • Wide output voltage swing - ±13.6V with VS = ±15V, RL = 1kΩ and 3.8V/0.3V with VS = +5V, RL = 500Ω • Pb-Free available (RoHS compliant) Applications • Video amplifiers • Single-supply amplifiers At a gain of +2, the EL2045 has a -3dB bandwidth of 100MHz with a phase margin of 50°. Because of its conventional voltage-feedback topology, the EL2045 allows the use of reactive or non-linear elements in its feedback network. This versatility combined with low cost and 75mA of output-current drive makes the EL2045 an ideal choice for price-sensitive applications requiring low power and high speed. • Active filters/integrators Ordering Information • Log amplifiers PART NUMBER PACKAGE TAPE & REEL PKG. DWG. # EL2045CS 8-Pin SO - MDP0027 EL2045CS-T7 8-Pin SO 7” MDP0027 EL2045CS-T13 8-Pin SO 13” MDP0027 EL2045CSZ (See Note) 8-Pin SO (Pb-free) - MDP0027 EL2045CSZ-T7 (See Note) 8-Pin SO (Pb-free) 7” MDP0027 EL2045CSZ-T13 (See Note) 8-Pin SO (Pb-free) 13” MDP0027 8-Pin PDIP - MDP0031 EL2045CN • High speed sample-and-hold • High speed signal processing • ADC/DAC buffers • Pulse/RF amplifiers • Pin diode receivers • Photo multiplier amplifiers • Difference amplifiers Pinout EL2045 (8-PIN SO & 8-PIN PDIP) TOP VIEW NC 1 IN- 2 NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 1 FN7030.1 IN+ 3 V- 4 8 NC + 7 V+ 6 OUT 5 NC CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2002, 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. EL2045 Absolute Maximum Ratings (TA = 25°C) Supply Voltage (VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V or 36V Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS Differential Input Voltage (dVIN) . . . . . . . . . . . . . . . . . . . . . . . . .±10V Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA Power Dissipation (PD) . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Operating Temperature Range (TA) . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . +150°C Storage Temperature (TST) . . . . . . . . . . . . . . . . . . .-65°C to +150°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. 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 DC Electrical Specifications PARAMETER VOS VS = ±15V, RL = 1kΩ, unless otherwise specified. DESCRIPTION Input Offset Voltage CONDITION VS = ±15V TEMP MIN 25°C TYP MAX UNIT 0.5 7.0 mV 9.0 mV TMIN, TMAX TCVOS Average Offset Voltage Drift IB Input Bias Current VS = ±15V All 10.0 25°C 2.8 TMIN, TMAX IOS Input Offset Current VS = ±5V 25°C 2.8 VS = ±15V 25°C 50 TMIN, TMAX VOUT ISC Output Voltage Swing Output Short Circuit Current 2 300 nA 400 nA 0.3 nA/°C 3000 V/V VS = ±15V,VOUT = ±10V, RL = 1kΩ Common-mode Input Range µA All Open-loop Gain CMIR µA nA AVOL Common-mode Rejection Ratio 9.2 50 (Note 1) CMRR µA 25°C Average Offset Current Drift Power Supply Rejection Ratio 8.2 VS = ±5V TCIOS PSRR µV/°C 25°C 1500 TMIN, TMAX 1500 V/V VS = ±5V, VOUT = ±2.5V, RL = 500Ω 25°C 2500 V/V VS = ±5V, VOUT = ±2.5V, RL = 150Ω 25°C 1750 V/V VS = ±5V to ±15V 25°C 65 85 dB TMIN, TMAX 60 25°C 70 TMIN, TMAX 70 VCM = ±12V, VOUT = 0V dB 95 dB dB VS = ±15V 25°C ±14.0 V VS = ±5V 25°C ±4.2 V VS = +5V 25°C 4.2/0.1 V VS = ±15V, RL = 1kΩ 25°C ±13.4 ±13.6 V TMIN, TMAX ±13.1 VS = ±15V, RL = 500Ω 25°C ±12.0 ±13.4 V VS = ±5V, RL = 500Ω 25°C ±3.4 ±3.8 V VS = ±5V, RL = 150Ω 25°C ±3.2 V VS = +5V, RL = 500Ω 25°C 3.6/0.4 3.8/0.3 V TMIN, TMAX 3.5/0.5 25°C 40 TMIN, TMAX 35 V V 75 mA mA FN7030.1 February 11, 2005 EL2045 DC Electrical Specifications PARAMETER IS VS = ±15V, RL = 1kΩ, unless otherwise specified. (Continued) DESCRIPTION Supply Current CONDITION VS = ±15V, no load TEMP MIN 25°C TYP MAX UNIT 5.2 7 mA 7.6 mA TMIN, TMAX RIN Input Resistance VS = ±5V, no load 25°C 5.0 mA Differential 25°C 150 kΩ Common-mode 25°C 15 MΩ CIN Input Capacitance AV = +2 @10MHz 25°C 1.0 pF ROUT Output Resistance AV = +2 25°C 50 mΩ PSOR Power-Supply Operating Range Dual-supply 25°C ±2.0 ±18.0 V Single-supply 25°C 2.5 36.0 V NOTE: 1. Measured from TMIN To TMAX. Closed-Loop AC Electrical Specifications PARAMETER BW GBWP VS = ±15V, AV = +2, RF = RG = 1kΩ, CF = 3pF, RL = 1kΩ unless otherwise specified. DESCRIPTION -3dB Bandwidth (VOUT = 0.4VPP) Gain-bandwidth Product CONDITION TEMP MIN TYP MAX UNIT VS = ±15V, AV = +2 25°C 100 MHz VS = ±15V, AV = -1 25°C 75 MHz VS = ±15V, AV = +5 25°C 20 MHz VS = ±15V, AV = +10 25°C 10 MHz VS = ±15V, AV = +20 25°C 5 MHz VS = ±5V, AV = +2 25°C 75 MHz VS = ±15V 25°C 200 MHz VS = ±5V 25°C 150 MHz 50 ° 275 V/µs 200 V/µs 4.4 MHz PM Phase Margin RL = 1kΩ, CL = 10pF 25°C SR Slew Rate (Note 1) VS = ±15V, RL = 1kΩ 25°C VS = ±5V, RL = 500Ω 25°C VS = ±15V 25°C VS = ±5V 25°C 12.7 MHz FPBW Full-power Bandwidth (Note 2) 200 3.2 tR, tF Rise Time, Fall Time 0.1V output step 25°C 3.0 ns OS Overshoot 0.1V output step 25°C 20 % tPD Propagation Delay 25°C 2.5 ns tS Settling to +0.1% (AV = +2) VS = ±15V, 10V step 25°C 80 ns VS = ±5V, 5V step 25°C 60 ns dG Differential Gain (Note 3) NTSC/PAL 25°C 0.02 % dP Differential Phase (Note 3) NTSC/PAL 25°C 0.07 ° eN Input Noise Voltage 10kHz 25°C 15.0 nV/√Hz iN Input Noise Current 10kHz 25°C 1.50 pA/√Hz CI STAB Load Capacitance Stability AV = +2 25°C Infinite pF NOTES: 1. Slew rate is measured on rising edge. 2. For VS = ±15V, VOUT = 20VPP. For VS = ±5V, VOUT = 5 VPP. Full-power bandwidth is based on slew rate measurement using: FPBW = SR / (2π * Vpeak). 3. Video performance measured at VS = ±15V, AV = +2 with 2 times normal video level across RL = 150Ω. This corresponds to standard video levels across a backterminated 75Ω load. For other values of RL, see curves. 3 FN7030.1 February 11, 2005 EL2045 EL2045 Test Circuit Typical Performance Curves Non-Inverting Frequency Response Open-Loop Gain and Phase vs Frequency CMRR, PSRR and Closed-Loop Output Resistance vs Frequency Supply Current vs Supply Voltage 4 Inverting Frequency Response Frequency Response for Various Load Resistances Output Voltage Swing vs Frequency Equivalent Input Noise 2nd and 3rd Harmonic Distortion vs Frequency Settling Time vs Output Voltage Change Common-Mode Input Range vs Supply Voltage Output Voltage Range vs Supply Voltage FN7030.1 February 11, 2005 EL2045 Typical Performance Curves (Continued) Gain-Bandwidth Product vs Supply Voltage Bias and Offset Current vs Input Common-Mode Voltage Open-Loop Gain vs Supply Voltage Slew-Rate vs Supply Voltage Open-Loop Gain vs Load Resistance Voltage Swing vs Load Resistance Offset Voltage vs Temperature Bias and Offset Current vs Temperature Supply Current vs Temperature Gain-Bandwidth Product vs Temperature Open-Loop Gain PSRR and CMRR vs Temperature Slew Rate vs Temperature 5 FN7030.1 February 11, 2005 EL2045 Typical Performance Curves (Continued) Short-Circuit Current vs Temperature Gain-Bandwidth Product vs Load Capacitance Small-Signal Step Response Overshoot vs Load Capacitance Large-Signal Step Response Differential Gain and Phase vs DC Input Offset at 3.58MHz Differential Gain and Phase vs DC Input Offset at 4.43MHz Differential Gain and Phase vs Number of 150Ω Loads at 3.58MHz Package Power Dissipation vs Ambient Temperature JEDEC JESD51-3 Low Effective Thermal Conductivity8-Lead Test SO 8-Pin PDIP Board Maximum Power Maximum Power 1.4 Dissipation Dissipation Differential Gain and Phase vs Number of 150Ω Loads at 4.43MHz Power Dissipation (W) 1.2 1.25W PD IP 8 θ JA = 1 10 0° C/ W 0.8 781mW SO 8 θJ 0.6 A =1 60 °C /W 0.4 0.2 0 0 25 50 75 85 100 125 150 Ambient Temperature (°C) 6 FN7030.1 February 11, 2005 EL2045 Simplified Schematic Burn-In Circuit ability to use diodes in the feedback network, the EL2045 is an excellent choice for applications such as fast log amplifiers. Single-Supply Operation ALL PACKAGES USE THE SAME SCHEMATIC Applications Information Product Description The EL2045 is a low-power wideband, gain-of-2 stable monolithic operational amplifier built on Elantec's proprietary high-speed complementary bipolar process. The EL2045 uses a classical voltage-feedback topology which allows it to be used in a variety of applications where current-feedback amplifiers are not appropriate because of restrictions placed upon the feedback element used with the amplifier. The conventional topology of the EL2045 allows, for example, a capacitor to be placed in the feedback path, making it an excellent choice for applications such as active filters, sample-and-holds, or integrators. Similarly, because of the 7 The EL2045 has been designed to have a wide input and output voltage range. This design also makes the EL2045 an excellent choice for single-supply operation. Using a single positive supply, the lower input voltage range is within 100mV of ground (RL = 500Ω), and the lower output voltage range is within 300mV of ground. Upper input voltage range reaches 4.2V, and output voltage range reaches 3.8V with a 5V supply and RL = 500Ω. This results in a 3.5V output swing on a single 5V supply. This wide output voltage range also allows single-supply operation with a supply voltage as high as 36V or as low as 2.5V. On a single 2.5V supply, the EL2045 still has 1V of output swing. Gain-Bandwidth Product and the -3dB Bandwidth The EL2045 has a gain-bandwidth product of 100MHz while using only 5.2mA of supply current. For gains greater than 4, its closed-loop -3dB bandwidth is approximately equal to the gain-bandwidth product divided by the noise gain of the circuit. For gains less than 4, higher-order poles in the amplifier's transfer function contribute to even higher closed loop bandwidths. For example, the EL2045 has a -3dB bandwidth of 100MHz at a gain of +2, dropping to 20MHz at a gain of +5. It is important to note that the EL2045 has been FN7030.1 February 11, 2005 EL2045 designed so that this “extra” bandwidth in low-gain applications does not come at the expense of stability. As seen in the typical performance curves, the EL2045 in a gain of +2 only exhibits 1.0dB of peaking with a 1kΩ load. Video Performance An industry-standard method of measuring the video distortion of a component such as the EL2045 is to measure the amount of differential gain (dG) and differential phase (dP) that it introduces. To make these measurements, a 0.286VPP (40 IRE) signal is applied to the device with 0V DC offset (0 IRE) at either 3.58MHz for NTSC or 4.43MHz for PAL. A second measurement is then made at 0.714V DC offset (100 IRE). Differential gain is a measure of the change in amplitude of the sine wave, and is measured in percent. Differential phase is a measure of the change in phase, and is measured in degrees. For signal transmission and distribution, a back-terminated cable (75Ω in series at the drive end, and 75Ω to ground at the receiving end) is preferred since the impedance match at both ends will absorb any reflections. However, when double termination is used, the received signal is halved; therefore a gain of 2 configuration is typically used to compensate for the attenuation. The EL2045 has been designed as an economical solution for applications requiring low video distortion. It has been thoroughly characterized for video performance in the topology described above, and the results have been included as typical dG and dP specifications and as typical performance curves. In a gain of +2, driving 150Ω, with standard video test levels at the input, the EL2045 exhibits dG and dP of only 0.02% and 0.07° at NTSC and PAL. Because dG and dP can vary with different DC offsets, the video performance of the EL2045 has been characterized over the entire DC offset range from -0.714V to +0.714V. For more information, refer to the curves of dG and dP vs DC Input Offset. The output drive capability of the EL2045 allows it to drive up to 2 back-terminated loads with good video performance. For more demanding applications such as greater output drive or better video distortion, a number of alternatives such as the EL2120, EL400, or EL2074 should be considered. Printed-Circuit Layout The EL2045 is well behaved, and easy to apply in most applications. However, a few simple techniques will help assure rapid, high quality results. As with any high-frequency device, good PCB layout is necessary for optimum performance. Ground-plane construction is highly recommended, as is good power supply bypassing. A 0.1µF ceramic capacitor is recommended for bypassing both supplies. Pin lengths should be as short as possible, and bypass capacitors should be as close to the device pins as possible. For good AC performance, parasitic capacitances should be kept to a minimum at both inputs and at the output. Resistor values should be kept under 5kΩ because of the RC time constants associated with the parasitic capacitance. Metal-film and carbon resistors are both acceptable, use of wire-wound resistors is not recommended because of their parasitic inductance. Similarly, capacitors should be low-inductance for best performance. The EL2045 Macromodel This macromodel has been developed to assist the user in simulating the EL2045 with surrounding circuitry. It has been developed for the PSPICE simulator (copywritten by the Microsim Corporation), and may need to be rearranged for other simulators. It approximates DC, AC, and transient response for resistive loads, but does not accurately model capacitive loading. This model is slightly more complicated than the models used for low-frequency op-amps, but it is much more accurate for AC analysis. The model does not simulate these characteristics accurately: • Noise • Settling time • Non-linearities • Temperature effects • Manufacturing variations • CMRR • PSRR Output Drive Capability The EL2045 has been designed to drive low impedance loads. It can easily drive 6VPP into a 150Ω load. This high output drive capability makes the EL2045 an ideal choice for RF, IF and video applications. Furthermore, the current drive of the EL2045 remains a minimum of 35mA at low temperatures. 8 FN7030.1 February 11, 2005 EL2045 EL2045 Macromodel * Connections: +input * | | -input * | | +Vsupply * | | | -Vsupply * | | | | output * | | | | | .subckt M2045 3 2 7 4 6 * * Input stage * ie 7 37 0.9mA r6 36 37 400 r7 38 37 400 rc1 4 30 850 rc2 4 39 850 q1 30 3 36 qp q2 39 2 38 qpa ediff 33 0 39 30 1.0 rdiff 33 0 1Meg * * Compensation Section * ga 0 34 33 0 1m rh 34 0 2Meg ch 34 0 1.5pF rc 34 40 1K cc 40 0 1pF * * Poles * ep 41 0 40 0 1 rpa 41 42 200 cpa 42 0 2pF rpb 42 43 200 cpb 43 0 2pF * * Output Stage * ios1 7 50 1.0mA ios2 51 4 1.0mA q3 4 43 50 qp q4 7 43 51 qn q5 7 50 52 qn q6 4 51 53 qp ros1 52 6 25 ros2 6 53 25 * * Power Supply Current * ips 7 4 2.7mA * * Models * .model qn npn(is=800E-18 bf=200 tf=0.2nS) .model qpa pnp(is=864E-18 bf=100 tf=0.2nS) .model qp pnp(is=800E-18 bf=125 tf=0.2nS) .ends 9 FN7030.1 February 11, 2005 EL2045 EL2045 Macromodel (Continued) All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 10 FN7030.1 February 11, 2005