SGM8634XTS14/TR

SGM8634 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier PRODUCT DESCRIPTION FEATURES The quad SGM8634 is a low noise, low voltage, and low  Rail-to-Rail Input and Output power operational amplifier that can be designed into a wide range of applications. The SGM8634 has a high gain-bandwidth product of 6MHz, a slew rate of 3.7V/μs, and a quiescent current of 470μA/amplifier at 5V. The SGM8634 is designed to provide optimal performance in low voltage and low noise systems. It provides rail-to-rail output swing into heavy loads. The input common mode voltage range includes ground, and the maximum input offset voltage is 3.5mV. The operating range is from 2.5V to 5.5V. 0.8mV Typical VOS         High Gain-Bandwidth Product: 6MHz High Slew Rate: 3.7V/μs Settling Time to 0.1% with 2V Step: 2.1μs Overload Recovery Time: 0.9μs Low Noise: 12nV/ Hz Supply Voltage Range: 2.5V to 5.5V Input Voltage Range: -0.1V to +5.6V with VS = 5.5V Low Supply Current 470μA/Amplifier (TYP)  Available in Green TSSOP-14 and SOIC-14 Packages The quad SGM8634 is available in Green TSSOP-14 and SOIC-14 packages. It is specified over the extended industrial temperature range (-40℃ to +125℃). APPLICATIONS Sensors Audio Active Filters A/D Converters Communications Test Equipment Cellular and Cordless Phones Laptops and PDAs Photodiode Amplification Battery-Powered Instrumentation SG Micro Corp www.sg-micro.com REV. C. 2 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 PACKAGE/ORDERING INFORMATION MODEL PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE ORDERING NUMBER TSSOP-14 -40℃ to +125℃ SGM8634XTS14/TR SOIC-14 -40℃ to +125℃ SGM8634XS14/TR SGM8634 PACKAGE MARKING SGM8634 XTS14 XXXXX SGM8634XS14 XXXXX PACKING OPTION Tape and Reel, 3000 Tape and Reel, 2500 NOTE: XXXXX = Date Code and Vendor Code. Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly. ABSOLUTE MAXIMUM RATINGS OVERSTRESS CAUTION Supply Voltage, +VS to -VS ................................................ 6V Input Common Mode Voltage Range .................................................... (-VS) - 0.3V to (+VS) + 0.3V Storage Temperature Range ........................-65℃ to +150℃ Junction Temperature ...................................................160℃ Operating Temperature Range .....................-40℃ to +125℃ Lead Temperature (Soldering 10sec) ...........................260℃ ESD Susceptibility HBM............................................................................. 1500V MM................................................................................. 400V Stresses beyond those listed may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. PIN CONFIGURATION ESD SENSITIVITY CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DISCLAIMER (TOP VIEW) OUTA 1 14 OUTD -INA 2 13 -IND +INA 3 12 +IND +VS 4 11 -VS +INB 5 10 +INC -INB 6 9 -INC OUTB 7 8 OUTC SG Micro Corp reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. TSSOP-14/SOIC-14 SG Micro Corp www.sg-micro.com 2 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 ELECTRICAL CHARACTERISTICS (At TA = +25℃, VS = 5V, VCM = VS/2, RL = 600Ω, unless otherwise noted.) SGM8634 PARAMETER CONDITIONS TYP MIN/MAX OVER TEMPERATURE +25℃ +25℃ 0.8 3.5 0℃ to -40℃ to -40℃ to 70℃ 85℃ 125℃ 3.9 4.3 4.6 UNITS MIN / MAX INPUT CHARACTERISTICS Input Offset Voltage (VOS) mV MAX Input Bias Current (IB) 1 pA TYP Input Offset Current (IOS) 1 pA TYP -0.1 to V TYP dB MIN dB MIN dB MIN Input Common Mode Voltage Range VS = 5.5V (VCM) +5.6 Common Mode Rejection Ratio (CMRR) Open-Loop Voltage Gain (AOL) VS = 5.5V, VCM = -0.1V to 4V 90 VS = 5.5V, VCM = -0.1V to 5.6V 83 73 87 70 86 65 RL = 600Ω ,VO = 0.15V to 4.85V 97 RL = 10kΩ ,VO = 0.05V to 4.95V 108 dB MIN 2.4 μV/℃ TYP Input Offset Voltage Drift (ΔVOS/ΔT) 90 70 79 OUTPUT CHARACTERISTICS Output Voltage Swing from Rail RL = 600Ω 0.1 V TYP RL = 10kΩ 0.015 V TYP Output Current (IOUT) Closed-Loop Output Impedance 53 f = 200kHz, G = 1 49 45 40 35 3 mA MIN Ω TYP POWER SUPPLY Operating Voltage Range Power Supply Rejection Ratio (PSRR) Quiescent Current/Amplifier (IQ) 2.5 2.5 2.5 2.5 V MIN 5.5 5.5 5.5 5.5 V MAX VS = 2.5V to 5.5V VCM = (-VS) + 0.5V 91 74 72 72 68 dB MIN IOUT = 0 470 650 727 750 815 μA MAX DYNAMIC PERFORMANCE Gain-Bandwidth Product (GBP) RL = 10kΩ Phase Margin (φO) 6 MHz TYP 60 degrees TYP Full Power Bandwidth (BWP) ＜1% distortion, RL = 600Ω 250 kHz TYP Slew Rate (SR) G = +1, 2V Step, RL = 10kΩ 3.7 V/μs TYP Settling Time to 0.1% (tS) G = +1, 2V Step, RL = 600Ω 2.1 μs TYP Overload Recovery Time VIN ·Gain = VS, RL = 600Ω 0.9 μs TYP Voltage Noise Density (en) f = 1kHz 12 nV/ Hz TYP Current Noise Density (in) f = 1kHz 3 fA/ Hz TYP NOISE PERFORMANCE SG Micro Corp www.sg-micro.com 3 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, RL = 600Ω, unless otherwise noted. Closed-Loop Output Voltage Sw ing 6 V S = 5V V IN = 4.9V P-P TA = +25℃ RL = 10kΩ G=1 4 3 2 1 0 10 100 1000 VS = 5V 120 Output Impedance (Ω) 5 Output Voltage (V P-P) Output Impedance vs. Frequency 140 10000 100 80 60 40 G = 100 20 G=1 0 1 10 Frequency (kHz) Positive Overload Recovery 100 1000 Frequency (kHz) 10000 Negative Overload Recovery 200mV /div 0V VIN G = 10 VIN 200mV /div 0V VOUT 1V /div 0V VOUT VS = ±2.5V VIN = -200mVP-P (RET to GND) CL = 0pF 0V RL = 10kΩ G = 100 RL = 10kΩ G = 100 Time (0.3µs/div) Small-Signal Step Response VS = 5V G = +1 CL = 100pF RL = 10kΩ Voltage (50mV/div) Voltage (1V/div) VS = 5V G = +1 CL = 100pF RL = 10kΩ SG Micro Corp www.sg-micro.com VS = ±2.5V VIN = +200mVP-P (RET to GND) CL = 0pF Time (0.3µs/div) Large-Signal Step Response Time (1μs/div) 1V /div Time (1μs/div) 4 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, RL = 600Ω, unless otherwise noted. CMRR vs. Frequency PSRR vs. Frequency 120 120 VS = 5V VS = 5V 100 CMRR (dB) PSRR (dB) 100 80 60 40 80 60 40 20 20 0.01 0.1 1 10 Frequency (kHz) 100 0 0.01 1000 50 TA = +25℃ G=1 40 Channel Separation (dB) VS = 5V RL = 10kΩ 60 +OS -OS 30 20 10 1 10 100 Load Capacitance (pF) 130 VS = 5V RL = 620Ω 120 TA = +25℃ G=1 110 100 0.1 1000 1 10 Frequency (kHz) 100 1000 PSRR vs. Temperature CMRR vs. Temperature 120 130 VS = 5.5V VCM = -0.1V to 4V VS = 2.5V to 5.5V 120 100 PSRR (dB) CMRR (dB) 1000 90 0 90 80 70 100 140 70 110 1 10 Frequency (kHz) Channel Separation vs. Frequency Small-Signal Overshoot vs. Load Capacitance Small-Signal Overshoot (%) 0.1 VCM = -0.1V to 5.6V 110 100 90 80 60 70 -50 -30 -10 10 30 50 70 Temperature (℃) SG Micro Corp www.sg-micro.com 90 110 130 -50 -30 -10 10 30 50 70 90 110 130 Temperature (℃) 5 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, RL = 600Ω, unless otherwise noted. Output Voltage Swing vs. Output Current Supply Current vs. Temperature 650 5 Sourcing Current 550 Output Voltage (V) Supply Current (μA) 600 500 450 VS = 2.5V 400 VS = 3V 350 VS = 5V 300 4 +135℃ 3 -50 -30 -10 2 +135℃ +25℃ -50℃ 1 Sinking Current 10 30 50 70 0 90 110 130 10 20 30 40 50 60 70 80 Output Current (mA) Temperature (℃) Open-Loop Gain vs. Temperature Small-Signal Overshoot vs. Load Capacitance 120 70 RL = 10kΩ 110 Small-Signal Overshoot (%) Open–Loop Gain (dB) -50℃ 0 250 100 RL = 600Ω 90 80 70 -50 -30 -10 10 30 50 70 VS = 2.7V RL = 10kΩ 60 50 TA = +25℃ G=1 40 +OS 30 -OS 20 10 0 90 110 130 1 Temperature (℃) Output Voltage Swing vs. Output Current 10 100 Load Capacitance (pF) 1000 Channel Separation vs. Frequency 3 140 Channel Separation (dB) Sourcing Current Output Voltage (V) +25℃ VS = 5V VS = 3V 2 +135℃ +25℃ -50℃ 1 VS = 2.7V RL = 620Ω 130 TA = +25℃ G=1 120 110 100 Sinking Current 0 90 0 10 20 30 40 Output Current (mA) SG Micro Corp www.sg-micro.com 50 60 0.1 1 10 100 Frequency (kHz) 1000 6 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, RL = 600Ω, unless otherwise noted. Output Impedance vs. Frequency Closed-Loop Output Voltage Swing 140 3 Output Impedance (Ω) 100 80 60 40 G = 100 G = 10 G=1 20 Output Voltage (VP-P) VS = 2.7V 120 2.5 2 1.5 VS = 2.7V VIN = 2.6VP-P 1 TA = +25℃ RL = 10kΩ G=1 0.5 0 0 1 10 100 1000 Frequency (kHz) 10 10000 Large-Signal Step Response VS = 2.7V G = +1 CL = 100pF RL = 10kΩ Voltage (50mV/div) VS = 2.7V G = +1 CL = 100pF RL = 10kΩ Voltage (500mV/div) 10000 Small-Signal Step Response Time (1μs/div) Time (1μs/div) Offset Voltage Production Distribution 50 35 30 25 20 15 10 5 0 Input Voltage Noise Spectral Density vs. Frequency 1000 Voltage Noise (nV/√Hz) 45 40 VS = 5V 100 10 Offset Voltage (mV) SG Micro Corp www.sg-micro.com 3 2 2.5 1.5 1 0 0.5 -0.5 -1 -2 -1.5 -3 1 -2.5 Percentage of Amplifiers (%) 100 1000 Frequency (kHz) 10 100 1000 Frequency (Hz) 10000 7 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 APPLICATION NOTES Driving Capacitive Loads Power-Supply Bypassing and Layout The SGM8634 can directly drive 1000pF in unity-gain without oscillation. The unity-gain follower (buffer) is the most sensitive configuration to capacitive loading. Direct capacitive loading reduces the phase margin of the amplifier and this results in ringing or even oscillation. Applications that require greater capacitive driving capability should use an isolation resistor between the output and the capacitive load like the circuit in Figure 1. The isolation resistor RISO and the load capacitor CL form a zero to increase stability. The bigger the RISO resistor value, the more stable VOUT will be. Note that this method results in a loss of gain accuracy because RISO forms a voltage divider with the RLOAD. The SGM8634 operates from either a single +2.5V to +5.5V supply or dual ±1.25V to ±2.75V supplies. For single-supply operation, bypass the power supply +VS with a 0.1µF ceramic capacitor which should be placed close to the +VS pin. For dual-supply operation, both the +VS and the -VS supplies should be bypassed to ground with separate 0.1µF ceramic capacitors. 2.2µF tantalum capacitor can be added for better performance. RISO 14 SGM8634 For the operational amplifier, soldering the part to the board directly is strongly recommended. Try to keep the high frequency current loop area small to minimize the EMI (electromagnetic interfacing). VOUT VIN Good PC board layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and output. To decrease stray capacitance, minimize trace lengths and widths by placing external components as close to the device as possible. Use surface-mount components whenever possible. CL Figure 1. Indirectly Driving Heavy Capacitive Load An improved circuit is shown in Figure 2. It provides DC accuracy as well as AC stability. RF provides the DC accuracy by connecting the inverting signal with the output. CF and RIso serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifier’s inverting input, thereby preserving phase margin in the overall feedback loop. +VS +VS 10µF 10µF 0.1µF 0.1µF Vn Vn 14 SGM8634 VOUT 14 SGM8634 VOUT Vp 10µF Vp CF -VS (GND) RF 14 0.1µF RISO SGM8634 VIN VOUT CL Figure 2. Indirectly Driving Heavy Capacitive Load with DC Accuracy For non-buffer configuration, there are two other ways to increase the phase margin: (a) by increasing the amplifier’s closed-loop gain or (b) by placing a capacitor in parallel with the feedback resistor to counteract the parasitic capacitance associated with inverting node. SG Micro Corp www.sg-micro.com -VS RL Figure 3. Amplifier with Bypass Capacitors Grounding A ground plane layer is important for SGM8634 circuit design. The length of the current path in an inductive ground return will create an unwanted voltage noise. Broad ground plane areas will reduce the parasitic inductance. Input-to-Output Coupling To minimize capacitive coupling, the input and output signal traces should not be in parallel. This helps reduce unwanted positive feedback. 8 470μA, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier SGM8634 TYPICAL APPLICATION CIRCUITS Differential Amplifier Low-Pass Active Filter The circuit shown in Figure 4 performs the difference function. If the resistor ratios are equal (R4/R3 = R2/R1), then VOUT = (Vp - Vn) × R2/R1 + VREF. The low-pass filter shown in Figure 6 has a DC gain of (-R2/R1) and the -3dB corner frequency is 1/2R2C. Make sure the filter bandwidth is within the bandwidth of the amplifier. The large values of feedback resistors can couple with parasitic capacitance and cause undesired effects such as ringing or oscillation in high-speed amplifiers. Keep resistor values as low as possible and consistent with output loading consideration. R2 R1 Vn 14 SGM8634 VOUT Vp R3 C R4 R1 VREF VIN Figure 4. Differential Amplifier R2 14 SGM8634 VOUT Instrumentation Amplifier The circuit in Figure 5 performs the same function as that in Figure 4 but with a high input impedance. R2 14 R3 = R1 // R2 Figure 6. Low-Pass Active Filter R1 SGM8634 Vn 14 SGM8634 Vp 14 R3 VOUT R4 SGM8634 VREF Figure 5. Instrumentation Amplifier SG Micro Corp www.sg-micro.com 9 PACKAGE INFORMATION PACKAGE OUTLINE DIMENSIONS TSSOP-14 D E1 E 5.94 1.78 b e 0.42 0.65 RECOMMENDED LAND PATTERN (Unit: mm) L A A1 θ A2 Symbol Dimensions In Millimeters MIN MAX A c H Dimensions In Inches MIN MAX 1.200 0.047 A1 0.050 0.150 0.002 0.006 A2 0.800 1.050 0.031 0.041 b 0.190 0.300 0.007 0.012 c 0.090 0.200 0.004 0.008 D 4.860 5.100 0.191 0.201 E 4.300 4.500 0.169 0.177 E1 6.250 6.550 0.246 0.258 e L 0.650 BSC 0.500 H θ SG Micro Corp www.sg-micro.com 0.026 BSC 0.700 0.02 0.25 TYP 1° 0.028 0.01 TYP 7° 1° 7° TX00019.001 PACKAGE INFORMATION PACKAGE OUTLINE DIMENSIONS SOIC-14 D E 5.2 E1 2.2 e b 0.6 1.27 RECOMMENDED LAND PATTERN (Unit: mm) L1 R1 R A3 A A2 h L2 θ A1 Symbol h L Dimensions In Millimeters MIN MAX Dimensions In Inches MIN MAX A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.004 0.010 A2 1.25 1.65 0.049 0.065 A3 0.55 0.75 0.022 0.030 b 0.36 0.49 0.014 0.019 D 8.53 8.73 0.336 0.344 E 5.80 6.20 0.228 0.244 E1 3.80 4.00 0.150 0.157 e L 1.27 BSC 0.45 0.050 BSC 0.80 0.018 0.032 L1 1.04 REF 0.040 REF L2 0.25 BSC 0.01 BSC R 0.07 R1 0.07 h 0.30 0.50 0.012 0.020 θ 0° 8° 0° 8° SG Micro Corp www.sg-micro.com 0.003 0.003 TX00011.001 PACKAGE INFORMATION TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS P2 W P0 Q1 Q2 Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 Q3 Q4 B0 Reel Diameter P1 A0 K0 Reel Width (W1) DIRECTION OF FEED NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF TAPE AND REEL Reel Diameter Reel Width W1 (mm) A0 (mm) B0 (mm) K0 (mm) P0 (mm) P1 (mm) P2 (mm) W (mm) Pin1 Quadrant TSSOP-14 13″ 12.4 6.95 5.6 1.2 4.0 8.0 2.0 12.0 Q1 SOIC-14 13″ 16.4 6.6 9.3 2.1 4.0 8.0 2.0 16.0 Q1 SG Micro Corp www.sg-micro.com TX10000.000 DD0001 Package Type PACKAGE INFORMATION CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF CARTON BOX Length (mm) Width (mm) Height (mm) Pizza/Carton 13″ 386 280 370 5 SG Micro Corp www.sg-micro.com DD0002 Reel Type TX20000.000