19-1823, Rev 0; 10/00 Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps ________________________Applications ____________________________Features ♦ 7MHz Unity-Gain Stable Bandwidth ♦ Stable for Capacitive Loads up to 100pF ♦ +2.7V to +5.5V Single-Supply Voltage Range ♦ Ground-Sensing Inputs ♦ Outputs Swing Rail-to-Rail ♦ No Phase Reversal for Overdriven Inputs ♦ 85dB AVOL with 2kΩ Load ♦ 0.01% THD with 2kΩ Load ♦ Available in Space-Saving Packages 5-Pin SC70 (MAX4484) 8-Pin SOT23 (MAX4486) Single-Supply Zero-Crossing Detector Ordering Information Instruments and Terminals TEMP. RANGE PART Portable Communicators Electronic Ignition Modules PINPACKAGE TOP MARK MAX4484AXK-T -40°C to +125°C 5 SC70-5 ABQ Infrared Receivers for Remote Controls MAX4484AUK-T -40°C to +125°C 5 SOT23-5 ADPE Sensor Signal Detection MAX4486AKA-T -40°C to +125°C 8 SOT23-8 AAEP MAX4486ASA -40°C to +125°C 8 SO — MAX4486AUA -40°C to +125°C 8 µMAX — MAX4487AUD -40°C to +125°C 14 TSSOP — MAX4487ASD -40°C to +125°C 14 SO — Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Pin Configurations/Functional Diagrams IN+ 1 5 VDD VSS 2 4 OUT IN- 3 SC70-5/SOT23-5 MAX4487 MAX4486 MAX4484 OUTA 1 8 VDD OUTA 1 14 OUTD INA- 2 7 OUTB INA- 2 13 IND- INA+ 3 6 INB- INA+ 3 12 IND+ VSS 4 5 INB+ VDD 4 11 VSS INB+ 5 10 INC+ INB- 6 9 INC- OUTB 7 8 OUTC SOT23-8/SO-8/µMAX SO-14/TSSOP-14 ________________________________________________________________ Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX4484/MAX4486/MAX4487 General Description The MAX4484/MAX4486/MAX4487 single/dual/quad low-cost general-purpose op amps operate from a single +2.7V to +5.5V supply. The op amps are unity-gain stable with a 7MHz gain-bandwidth product, capable of driving an external 2kΩ load with Rail-to-Rail® output swing. The amplifiers are stable with capacitive loads of up to 100pF. The MAX4484/MAX4486/MAX4487 are specified from -40°C to +125°C, making them suitable for a variety of harsh environments, such as automotive. The single MAX4484 is available in the ultra-small 5-pin SC70, while the dual MAX4486 is packaged in the space-saving 8-pin SOT23 and µMAX packages. The quad MAX4487 is available in the 14-pin SO and TSSOP packages. MAX4484/MAX4486/MAX4487 Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps ABSOLUTE MAXIMUM RATINGS Power Supply Voltage (VDD to VSS) .........................-0.3V to +6V All Other Pins....................................(VSS - 0.3V) to (VDD + 0.3V) Output Short-Circuit Duration (OUT shorted to VDD or VSS)...........................................................Continuous Continuous Power Dissipation (TA = +70°C) 5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW 5-Pin SOT23 (derate 7.1mW/°C above +70°C) ...........571mW 8-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW 8-Pin µMAX (derate 4.5mW//°C above +70°C) ............362mW 14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW Operating Temperature Range .........................-55°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS—TA = +25°C (VDD = +5.0V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ to VDD/2, unless otherwise noted.) PARAMETER Supply Voltage Range VDD Supply Current per Amplifier IDD Input Offset Voltage VOS CONDITIONS MIN Inferred from PSRR test TYP 2.7 MAX UNITS 5.5 VDD = +2.7V 1.9 VDD = +5.0V 2.2 3.5 MAX4484 ±0.3 ±5.0 MAX4486 ±0.3 ±7.0 V mA mV MAX4487 ±0.3 ±9.0 IB (Note 1) ±0.1 100 Input Offset Current IOS (Note 1) ±0.1 100 Input Resistance RIN Differential or common mode 1000 Input Common-Mode Voltage Range VCM Inferred from CMRR test Common-Mode Rejection Ratio CMRR VSS ≤ VCM ≤ VDD - 1.3V 67 83 dB Power-Supply Rejection Ratio PSRR +2.7V ≤ VDD ≤ +5.5V 70 85 dB Large-Signal Voltage Gain AVOL VSS + 0.3V ≤ VOUT ≤ VDD 0.3V Output Voltage High VOH Specified as |VDD - VOH| Output Voltage Low VOL Specified as |VOL - VSS| Output Short-Circuit Current ISC Input Bias Current Gain-Bandwidth Product 2 SYMBOL VSS RL = 100kΩ RL = 2kΩ VDD 1.3 RL = 100kΩ 3 15 RL = 100kΩ 1 RL = 2kΩ 20 Sourcing 27 Sinking 33 V dB 85 RL = 2kΩ pA GΩ 98 76 pA 50 50 mV mV mA GBW 7 MHz Phase Margin φm 55 degrees Gain Margin Gm 12 dB Slew Rate SR 20 Input Voltage Noise Density en f = 10kHz 29 V/µs nV/√Hz Input Current Noise Density in f = 10kHz 1 fA/√Hz _______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps (VDD = +5.0V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ to VDD/2, unless otherwise noted.) PARAMETER Capacitive-Load Stability SYMBOL CLOAD CONDITIONS MIN AV = +1V/V (Note 1) TYP MAX UNITS 100 pF Power-On Time tON 1 µs Input Capacitance CIN 2 pF Total Harmonic Distortion THD Settling Time to 0.01% tS f = 10kHz, VOUT = 2Vp-p, AV = +1V/V RL = 100kΩ 0.006 RL = 2kΩ 0.01 VOUT = 4V step, AV = +1V/V % 450 ns ELECTRICAL CHARACTERISTICS—TA = -40°C to +125°C (VDD = +5.0V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = ∞ to VDD/2, unless otherwise noted.) (Note 2) PARAMETER SYMBOL Supply Voltage Range VDD Supply Current per Amplifier IDD Input Offset Voltage VOS CONDITIONS Inferred from PSRR test MIN TYP 2.7 UNITS 5.5 V 4.0 mA MAX4484 ±8.5 MAX4486 ±10.0 mV ±11.0 MAX4487 Input Offset Voltage Drift MAX ±6 TCVOS µV/°C IB (Note 1) ±100 pA Input Offset Current IOS (Note 1) ±100 pA Input Common-Mode Voltage Range VCM Inferred from CMRR test Input Bias Current VSS VDD - 1. 4 Common-Mode Rejection Ratio CMRR VSS ≤ VCM ≤ VDD 1.4V Power-Supply Rejection Ratio PSRR +2.7V ≤ VDD ≤ +5.5V Large-Signal Voltage Gain AVOL VSS + 0.3V ≤ VOUT ≤ VDD - 0.3V, RL = 2kΩ TA = -40°C to +85°C 66 TA = -40°C to +125°C 62 Output Voltage High VOH |VDD - VOUT|, RL = 2kΩ TA = -40°C to +85°C 100 TA = -40°C to +125°C 100 Output Voltage Low VOL |VOUT - VSS| RL = 2kΩ TA = -40°C to +85°C 100 TA = -40°C to +125°C 250 TA = -40°C to +85°C 65 TA = -40°C to +125°C 62 TA = -40°C to +85°C 67 TA = -40°C to +125°C 64 V dB dB dB mV mV Note 1: Guaranteed by design. Note 2: Specifications are 100% tested at TA = +25°C (exceptions marked). All temperature limits are guaranteed by design. _______________________________________________________________________________________ 3 MAX4484/MAX4486/MAX4487 ELECTRICAL CHARACTERISTICS—TA = +25°C (continued) Typical Operating Characteristics (VDD = +5V, VSS = 0, VCM = VDD/2, RL = ∞ to VDD/2, unless otherwise noted.) -80 -120 -160 -200 100 1k -40 100k 1M 10M -20 PHASE -80 100M -30 -40 -50 -120 -200 10k MAX4484 toc02 0 -160 AVCL = +1000 -10 GAIN PSRR (dB) PHASE 0 -60 -70 CL = 100pF AVCL = +1000 100 1k -80 10k 100k 1M 10M 1 100M 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) SUPPLY CURRENT vs. TEMPERATURE OUTPUT IMPEDANCE vs. FREQUENCY INPUT OFFSET VOLTAGE vs. TEMPERATURE 1k 2.0 1.5 1.0 0.8 0.7 0.6 100 VOS (mV) OUTPUT IMPEDANCE (Ω) 2.5 0.9 MAX4484 toc06 10k MAX4484 toc04 3.0 MAX4484 toc05 GAIN (dB) PHASE (DEGREES) 0 CURRENT (mA) 40 GAIN (dB) PHASE (DEGREES) GAIN -40 80 MAX4484 toc01 80 40 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY GAIN AND PHASE vs. FREQUENCY WITH CAPACITIVE LOAD MAX4484 toc03 GAIN AND PHASE vs. FREQUENCY (CL = 0) 10 0.5 0.4 0.3 1 0.2 0.5 0.1 0 0.1 0 0.01 -40 -20 0 20 40 60 80 100 120 100 1k 10k TEMPERATURE (°C) 1M 10M 12 35 10 |VOUT - VSS| (mV) 30 25 20 15 -20 0 20 40 IN 8 50mV/div RL = 2k 6 4 OUT 0 -40 -20 0 20 40 60 TEMPERATURE (°C) 80 100 120 80 100 120 MAX4484 toc09 2 10 60 NONINVERTING SMALLSIGNAL TRANSIENT RESPONSE MAX4484 toc08 RL = 2k -40 TEMPERATURE (°C) OUTPUT VOLTAGE LOW vs. TEMPERATURE MAX4484 toc07 40 4 100k FREQUENCY (Hz) OUTPUT VOLTAGE HIGH vs. TEMPERATURE |VDD - VOUT| (mV) MAX4484/MAX4486/MAX4487 Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) _______________________________________________________________________________________ 1µs/div Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps PERCENT OVERSHOOT vs. CAPACITIVE LOAD MAX4484 toc10 LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE LOW OUT 30 RL = 100k 100 90 NEGATIVE 25 GAIN (dB) PERCENT OVERSHOOT (%) 2V/div 110 MAX4484 toc11 35 IN MAX4484 toc12 NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE 20 80 70 RL = 2k 60 POSITIVE 15 50 10 40 LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE HIGH RL = 2k 70 120 0 90 85 -60 250 0.14 MAX4484 toc16 RL = 100k 10k 100k 1M 10M 100M 1.0 0.01 0.001 0.1 1 10 FREQUENCY (kHz) 100 1000 2.5 3.0 TOTAL HARMONIC DISTORTION PLUS NOISE vs. AMPLITUDE TOTAL HARMONIC DISTORTION PLUS NOISE vs. AMPLITUDE 0.14 f = 10kHz AVCL = +1 RL = 100k 0.12 0.10 0.08 0.06 0.08 0.06 0.04 0.04 0.02 0.02 0 0 0.01 2.0 SUPPLY VOLTAGE (V) THD + N (%) AVCL = +1 1.5 FREQUENCY (Hz) 0.10 THD + N (%) THD + N (%) 1k f = 10kHz AVCL = +1 RL = 2k 0.12 0.1 TA = +125°C 40 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 1 60 45 100 300 TA = -40°C 65 50 MAX4484 toc17 100 150 200 |VDD - VOUT| (mV) 300 70 55 -70 50 TA = +25°C 80 60 0 250 75 -50 -90 200 POWER-SUPPLY REJECTION RATIO vs. OPERATING VOLTAGE -40 40 150 CROSSTALK vs. FREQUENCY -30 -80 100 |VOUT - VSS| (mV) -20 50 50 CLOAD (pF) MAX4484 toc18 80 100 -10 CROSSTALK (dB) GAIN (dB) 90 80 PSRR (dB) 100 60 MAX4484 toc14 RL = 100k 40 0 MAX4484 toc13 110 20 MAX4484 toc15 0 400ns/div 0 0.5 1.0 1.5 2.0 VIN (Vp-p) 2.5 3.0 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VIN (Vp-p) _______________________________________________________________________________________ 5 MAX4484/MAX4486/MAX4487 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0, VCM = VDD/2, RL = ∞ to VDD/2, unless otherwise noted.) Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps MAX4484/MAX4486/MAX4487 Pin Description PIN NAME FUNCTION MAX4484 MAX4486 MAX4487 3 — — IN- Inverting Amplifier Input 1 — — IN+ Noninverting Amplifier Input 4 — — OUT Amplifier Output — 2 2 INA- Inverting Amplifier Input (Channel A) — 3 3 INA+ Noninverting Amplifier Input (Channel A) — 1 1 OUTA Amplifier Output (Channel A) — 6 6 INB- Inverting Amplifier Input (Channel B) — 5 5 INB+ Noninverting Amplifier Input (Channel B) — 7 7 OUTB Amplifier Output (Channel B) — — 9 INC- Inverting Amplifier Input (Channel C) — — 10 INC+ Noninverting Amplifier Input (Channel C) — — 8 OUTC Amplifier Output (Channel C) — — 13 IND- Inverting Amplifier Input (Channel D) — — 12 IND+ Noninverting Amplifier Input (Channel D) — — 14 OUTD Amplifier Output (Channel D) 2 4 11 VSS Negative Power-Supply Voltage 5 8 4 VDD Positive Power-Supply Voltage Detailed Description Applications Information Rail-to-Rail Output Stage Power Supplies and Layout The MAX4484/MAX4486/MAX4487 can drive a 2kΩ load and still swing within 50mV of the supply rails. Figure 1 shows the output swing of the MAX4484 configured with AV = +1V/V. The MAX4484/MAX4486/MAX4487 operates from a single +2.7V to +5.5V power supply. Bypass the power supply with 0.1µF capacitor to ground. Good layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins. Use surface-mount components for best results. Driving Capacitive Loads Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4484/MAX4486/MAX4487 are unity-gain stable for a range of capacitive loads up to 100pF. Figure 2 shows the response of the MAX4484 with an excessive capacitive load. Adding a series resistor between the output and the load capacitor (Figure 3) improves the circuit’s response by isolating the load capacitance from the op amp’s output. 6 _______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps CL MAX4484 MAX4486 MAX4487 400µs/div Figure 1. Rail-to-Rail Output Operation Figure 3. Capacitive-Load-Driving Circuit IN Chip Information 50mV/div TRANSISTOR COUNT: MAX4484: 101 MAX4486: 202 MAX4487: 404 OUT 1µs/div Figure 2. Small-Signal Transient Response with Excessive Capacitive Load (CL = 270pF) _______________________________________________________________________________________ 7 MAX4484/MAX4486/MAX4487 RISO 1V/div Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps SC70, 5L.EPS MAX4484/MAX4486/MAX4487 Package Information 8 _______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps SOT23, 8L.EPS _______________________________________________________________________________________ 9 MAX4484/MAX4486/MAX4487 Package Information (continued) Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps SOT5L.EPS MAX4484/MAX4486/MAX4487 Package Information (continued) 10 ______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps SOICN.EPS ______________________________________________________________________________________ 11 MAX4484/MAX4486/MAX4487 Package Information (continued) Single/Dual/Quad, Low-Cost, Single-Supply 7MHz, Rail-to-Rail Op Amps TSSOP,NO PADS.EPS MAX4484/MAX4486/MAX4487 Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.