19-1809; Rev 0; 10/00 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown The MAX4480 is a single amplifier offered in a tiny 5-pin SC70 package. The MAX4481 is a single amplifier with a low-power shutdown mode that reduces supply current to <1A and comes in a 6-pin SC70 package. The MAX4482 is a dual amplifier and comes in the spacesaving 8-pin SOT23 package. The MAX4483 is a quad amplifier and comes in a 14-pin TSSOP package. All devices are specified for operation across the -40C to +125C automotive temperature range. Features Single +2.5V to +5.5V Supply Voltage Range 50A Quiescent Current per Amplifier 1A max Shutdown Mode (MAX4481) Available in Space-Saving Packages 5-Pin SC70 (MAX4480) 6-Pin SC70 (MAX4481) 8-Pin SOT23 (MAX4482) 105dB AVOL with 5k Load 0.005% THD with 100k Load Rail-to-Rail Output Voltage Swing 3.0mA of Sink and Source Load Current Unity-Gain Stable up to CLOAD = 400pF Ordering Information PART Selector Guide PART NO. OF AMPLIFIERS PER PACKAGE SHUTDOWN MODE MAX4480 1 No MAX4481 1 Yes MAX4482 2 No MAX4483 4 No TOP MARK MAX4480AXK -40C to +125C 5 SC70 ABU MAX4480AUK -40C to +125C 5 SOT23 ADPJ MAX4481AXT* -40C to +125C 6 SC70 AAN MAX4481AUT* -40C to +125C 6 SOT23 AAOS MAX4482AKA -40C to +125C 8 SOT23 AAEJ MAX4482ASA -40C to +125C 8 SO -- MAX4482AUA -40C to +125C 8 MAX -- MAX4483ASD -40C to +125C 14 SO -- -40C to +125C 14 TSSOP -- MAX4483AUD Applications PINPACKAGE TEMP. RANGE *Future product--contact factory for availability. Single-Supply Zero-Crossing Detectors Pin Configurations Instruments and Terminals Portable Communications Electronic Ignition Modules MAX4480 MAX4481 Infrared Receivers Sensor Signal Detection IN+ 1 5 VDD VSS 2 4 OUT IN- 3 SC70-5/SOT23-5 Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. IN+ 1 6 VDD VSS 2 5 SHDN IN- 3 4 OUT SC70-6/SOT23-6 Pin Configurations continued at end of data sheet. ________________________________________________________________ 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. MAX4480-MAX4483 General Description The MAX4480-MAX4483 low-cost, general-purpose op amps offer Rail-to-Rail(R) outputs, draw only 50A of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4481 offers a low-power shutdown mode that reduces supply current to 1A (max) and puts the amplifier's output in a high-impedance state. These devices are unity-gain stable with capacitive loads up to 400pF. The MAX4480- MAX4483 are specified to +125C, making them suitable for use in a variety of harsh environments, such as automotive applications. MAX4480-MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown ABSOLUTE MAXIMUM RATINGS 8-Pin SOT23 (derate 9.1mW/C above +70C)............727mW 8-Pin MAX (derate 4.5mW/C above +70C) ............ 362mW 8-Pin SO (derate 5.88mW/C above +70C)............... 471mW 14-Pin TSSOP (derate 9.03mW/C above +70C) .......727mW 14-Pin SO (derate 8.33mW/C above +70C)............. 667mW Operating Temperature Range .........................-40C to +125C Junction Temperature ........................................................150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 VSS or VDD)................................. Continuous Continuous Power Dissipation (TA = +70C) 5-Pin SC70 (derate 3.1mW/C above +70C) ............. 247mW 6-Pin SC70 (derate 3.1mW/C above +70C) ..............245mW 5-Pin SOT23 (derate 7.1mW/C above +70C)............571mW 6-Pin SOT23 (derate 8.7mW/C above +70C)............696mW 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 (VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL 1M connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25C, unless otherwise noted.) PARAMETER SYMBOL Supply Voltage Range VDD Supply Current per Amplifier IDD Supply Current in Shutdown ISHDN Input Offset Voltage CONDITIONS MIN TYP 2.5 Inferred from PSRR test MAX UNITS 5.5 V VDD = 2.5V 45 VDD = 5.0V 50 SHDN = VSS (MAX4481 only) 0.1 1 A 1 5.5 mV pA VOS 100 A 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 VSS Common-Mode Rejection Ratio CMRR VSS VCM VDD - 1.3V 71 86 dB Power-Supply Rejection Ratio PSRR 2.5V VDD 5.5V 82 92 dB Input Bias Current Large-Signal Voltage Gain AVOL VSS + 0.02V VOUT VDD - 0.03V RL = 100k VSS + 0.10V VOUT VDD - 0.20V RL = 5k VDD - 1.3 dB 94 105 VOH Specified as VDD - VOUT RL = 100k 4 RL = 5k 80 Output Voltage Low VOL Specified as VOUT - VSS RL = 100k 1 RL = 5k 8 Output Short-Circuit Current ISC Sourcing 3 Sinking 17 Shutdown Mode Output Leakage IOUTSHDN Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC (MAX4481 only) SHDN Logic Low MAX4481 only SHDN Logic High VIH SHDN Input Current IIL, IIH Gain-Bandwidth Product GBW 2 V 110 Output Voltage High VIL pA M MAX4481 only SHDN = VDD or VSS (MAX4481 only) 150 30 mV mA 0.01 1.0 0.3 VDD 0.7 VDD 0.001 mV A V V 1 140 _______________________________________________________________________________________ 500 nA kHz Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown (VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL 1M connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN M Phase Margin TYP MAX 70 Gain Margin Slew Rate SR Input Voltage Noise Density en f = 10kHz in f = 10kHz UNITS degrees 30 dB 80 V/ms 100 nV/Hz 1 fA/Hz Capacitive-Load Stability CLOAD AV = +1V/V 400 pF Shutdown Delay Time tSHDN MAX4481 only 0.4 s Enable Delay Time tEN MAX4481 only 36 s Power-On Time tON 15 s Input Capacitance CIN 2.0 pF Total Harmonic Distortion THD 0.005 % 50 s Input Current Noise Density Settling Time to 0.1% tS f = 1kHz, VOUT = 2Vp-p, AV = +1V/V RL = 100k VOUT = 2V step ELECTRICAL CHARACTERISTICS (VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL 1M connected to VDD/2, SHDN = VDD (MAX4481 only), TA = -40C to +125C, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP UNITS Supply Voltage Range VDD 5.5 V Supply Current per Amplifier IDD 120 A Input Offset Voltage VOS 9 mV Input Offset Voltage Drift 2.5 MAX Inferred from PSRR test 3 TCVOS V/C IB (Note 1) 100 pA Input Offset Current IOS (Note 1) 100 pA Input Common-Mode Voltage Range VCM Inferred from CMRR test VSS Common-Mode Rejection Ratio CMRR VSS VCM VDD - 1.4V 67 dB Power-Supply Rejection Ratio PSRR 2.5V VCC 5.5V 77 dB Input Bias Current Shutdown Mode Output Leakage IOUTSHDN Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC (MAX4481 only) SHDN Logic Low VIL MAX4481 only SHDN Logic High VIH MAX4481 only VDD - 1.4 V 1.0 -40C to +85C A 5.0 +85C to +125C SHDN Input Current IIL, IIH SHDN = VDD or VSS (Note 1) (MAX4481 only) Large-Signal Voltage Gain AVOL VSS + 0.1V VOUT VDD - 0.20V, RL = 5k Output Voltage High VOH Output Voltage Low VOL 0.3 VDD 0.7 VDD V V 1 A Specified as VDD - VOUT, RL = 5k 200 mV Specified as VOUT - VSS, RL = 5k 50 mV 84 dB Note 1: Guaranteed by design. Note 2: Specifications are 100% tested at TA = +25C (exceptions noted). All temperature limits are guaranteed by design. _______________________________________________________________________________________ 3 MAX4480-MAX4483 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (VDD = +5V, VSS = 0, VCM = VDD/2, V SHDN = 5V, RL 1M connected to VDD/2, TA = +25C, unless otherwise noted.) GAIN AND PHASE vs. FREQUENCY (CL = 400pF) 1 10 100 1k 10k 100k PSRR (dB) -90 AVCL = +1000V/V -110 10 1 100k 1M 10 1k 10k 100k FREQUENCY (Hz) SUPPLY CURRENT vs. TEMPERATURE MAX4481 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 100k MAX4480 toc05 56 54 52 50 48 46 1M VSHDN = VSS 10k 44 0.1 100 FREQUENCY (Hz) SUPPLY CURRENT (pA) 10 10k 58 SUPPLY CURRENT (A) OUTPUT IMPEDANCE () 100 1k 100 60 MAX4480 toc4 1000 -50 -70 FREQUENCY (Hz) OUTPUT IMPEDANCE vs. FREQUENCY -10 -30 1 1M 10 MAX4480 toc06 AVCL = +1000V/V 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140 -160 -180 MAX4480 toc02 MAX4480 toc01 GAIN (dB)/PHASE (degrees) GAIN (dB)/PHASE (degrees) 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140 -160 -180 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY MAX4480 toc03 GAIN AND PHASE vs. FREQUENCY (NO LOAD) 1k 100 10 42 40 1 10 100 1k 10k 100k 1 -40 -20 1M 0 20 40 60 80 MAX4481 OUTPUT LEAKAGE CURRENT vs. TEMPERATURE 10k 1500 1000 VOS (V) 100 0 -500 10 -1000 1 40 60 80 TEMPERATURE (C) 4 100 120 80 100 120 RL = 5k to VDD/2 90 80 70 60 50 40 -1500 20 60 100 VDD - VOUT (mV) 500 1k 40 OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE MAX4480 toc08 VSHDN = VSS VOUT = VDD/2 20 TEMPERATURE (C) INPUT OFFSET VOLTAGE vs. TEMPERATURE MAX4480 toc07 100k 0 0 TEMPERATURE (C) FREQUENCY (Hz) -40 -20 -40 -20 100 120 MAX4480 toc09 0.01 ILEAK (pA) MAX4480-MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown -40 -20 0 20 40 60 80 TEMPERATURE (C) 100 120 -40 -20 0 20 40 60 80 TEMPERATURE (C) _______________________________________________________________________________________ 100 120 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown COMMON-MODE REJECTION RATIO vs. TEMPERATURE RL = 5k to VDD/2 10 130 MAX4480 toc11 -80 MAX4480 toc10 11 LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE -82 120 115 8 7 -84 GAIN (dB) CMRR (dB) -86 110 105 100 95 6 -88 90 5 85 -90 4 20 40 60 80 80 -40 -20 100 120 0 20 40 60 80 100 120 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 TEMPERATURE (C) TEMPERATURE (C) VOUT (V) LARGE-SIGNAL GAIN vs. TEMPERATURE MINIMUM OPERATING VOLTAGE vs. TEMPERATURE TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY RL = 5k to VDD/2 2.0 1.9 1.8 105 100 MAX4480 toc14 110 0 MAX4480 toc13 -40 -20 RL = 5k VOUT = 2Vp-p AV = +1 BW = 30kHz 10 100 THD + N (%) VDD (MIN) 1.7 1.6 1.5 1.4 4.5 MAX4480 toc15 VOUT - VSS (mV) RL = 5k to VDD/2 125 9 GAIN (dB) MAX4480 toc12 OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE 1 0.1 1.3 95 1.2 0.01 1.1 90 1.0 -40 -20 0 20 40 60 80 0 20 40 60 80 100 120 100 1k 10k 100k FREQUENCY (Hz) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE 0.1 1 0.1 0.001 1k FREQUENCY (Hz) 10k 100k MAX4480 toc18 0.1 0.001 0.001 100 1 0.01 0.01 0.01 RL = 100k f = 1kHz BW = 22kHz 10 THD + N (%) 1 RL = 5k f = 1kHz BW = 22kHz 10 100 MAX4480 toc17 100 MAX4480 toc16 RL = 100k VOUT = 2Vp-p AV = +1 BW = 30kHz 10 10 TEMPERATURE (C) THD + N (%) THD + N (%) 0.001 -40 -20 TEMPERATURE (C) 100 10 100 120 0 1 2 VIN (Vp-p) 3 0 0.5 1.0 1.5 2.0 2.5 3.0 VIN (Vp-p) _______________________________________________________________________________________ 5 MAX4480-MAX4483 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0, VCM = VDD/2, V SHDN = 5V, RL 1M connected to VDD/2, TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0, VCM = VDD/2, V SHDN = 5V, RL 1M connected to VDD/2, TA = +25C, unless otherwise noted.) NONINVERTING SMALL-SIGNAL TRANSIENT RESPONSE MAX4480 toc19 20 MAX4480 roc20 CAPACITIVE-LOAD STABILITY AV = +1V/V TA = +25C RL // CL IN CAPACITIVE LOAD (nF) 15 UNSTABLE REGION AV = 1V/V RL = 5k 10 50mV/div STABLE REGION 5 OUT 0 1k 10k 100k 20s/div RESISTIVE LOAD () PERCENT OVERSHOOT vs. CAPACITIVE LOAD NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE 15 10 NEGATIVE OVERSHOOT 5 OUT AV = 1V/V RL = 5k 0 0 100s/div 100 200 300 400 500 600 CLOAD (pF) CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY SUPPLY CURRENT vs. SUPPLY VOLTAGE 110 VOUT = VDD/2 50 SUPPLY CURRENT (A) 100 90 80 70 60 50 40 MAX4480 toc24 60 MAX4480 toc23 120 40 30 20 10 30 0 20 10 100 1k 10k FREQUENCY (kHz) 6 POSITIVE OVERSHOOT 20 OVERSHOOT (%) 1V/div MAX4480 toc22 MAX4480 roc21 25 IN CHANNEL-TO-CHANNEL ISOLATION (dB) MAX4480-MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown 100k 1M 0 1 2 3 4 5 SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 6 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown PIN NAME FUNCTION MAX4480 MAX4481 MAX4482 MAX4483 1 1 -- -- IN+ -- -- 3 3 INA+ Noninverting Amplifier Input A -- -- 5 5 INB+ Noninverting Amplifier Input B -- -- -- 10 INC+ Noninverting Amplifier Input C -- -- -- 12 IND+ Noninverting Amplifier Input D 2 2 4 11 VSS Negative Supply. Connect to ground for single-supply operation. Use a 0.01F bypass capacitor to GND. 3 3 -- -- IN- Inverting Amplifier Input -- -- 2 2 INA- Inverting Amplifier Input A -- -- 6 6 INB- Inverting Amplifier Input B -- -- -- 9 INC- Inverting Amplifier Input C -- -- -- 13 IND- Inverting Amplifier Input D 4 4 -- -- OUT Amplifier Output -- -- 1 1 OUTA Amplifier Output A -- -- 7 7 OUTB Amplifier Output B -- -- -- 8 OUTC Amplifier Output C -- -- -- 14 OUTD Amplifier Output D 5 6 8 4 VDD -- 5 -- -- SHDN Noninverting Amplifier Input Positive Supply. Use a 0.01F bypass capacitor to GND. Active-Low Shutdown Input. Connect to VDD for normal operation. Do not leave floating. Detailed Description Rail-to-Rail Output Stage The MAX4480-MAX4483 can drive a 5k load and still typically swing within 80mV of the supply rails. Figure 1 shows the MAX4480 output voltage swing configured with AV = +10V/V. 1V/div Driving Capacitive Loads Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4480-MAX4483 are unity-gain stable for a range of capacitive loads to above 400pF. Figure 2 shows the MAX4480 response with an excessive capacitive load. Adding a series resistor between the output and the load capacitor (Figure 3) improves the 100s/div Figure 1. Rail-to-Rail Output Operation _______________________________________________________________________________________ 7 MAX4480-MAX4483 Pin Description MAX4480-MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown IN RISO 50mV/div CL MAX4480 MAX4481 MAX4482 MAX4483 OUT CL = InF 2s/div Figure 2. Small-Signal Transient Response with Excessive Capacitive Load Figure 3. Capacitive-Load-Driving Circuit SHDN VDD 2V/div 2V/div OUT OUT 1V/div RL = 10M TO VSS CL = 25pF 400s/div 4s/div Figure 4. Shutdown Waveform Figure 5. Power-Up/Down Waveform circuit's response by isolating the load capacitance from the op amp's output. Applications Information Shutdown Mode The MAX4481 features a low-power shutdown mode. When SHDN goes low, the supply current drops to 0.1A (typ) and the output enters a high-impedance state. Pull SHDN high to enable the amplifier. Do not leave SHDN floating. Figure 4 shows the shutdown waveform. Power-Up The MAX4480-MAX4483 outputs typically settle within 50s after power-up. Figure 5 shows the output voltage on power-up and power-down. 8 Power Supplies and Layout The MAX4480-MAX4483 operate from a single +2.5V to +5.5V power supply. Bypass the power supply with a 0.1F 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. Chip Information MAX4480/MAX4481 TRANSISTOR COUNT: 111 MAX4482 TRANSISTOR COUNT: 209 MAX4483 TRANSISTOR COUNT: 407 _______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown MAX4483 OUTA 1 14 OUTD INA- 2 13 IND- INA+ 3 12 IND+ VDD 4 11 VSS INB+ 5 10 INC+ INB- 6 9 INC- OUTB 7 8 OUTC MAX4482 OUTA 1 8 VDD INA- 2 7 OUTB INA+ 3 6 INB- VSS 4 5 INB+ SOT23-8/SO/MAX TSSOP/SO SC70, 5L.EPS Package Information _______________________________________________________________________________________ 9 MAX4480-MAX4483 Pin Configurations (continued) Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown SOT23, 8L.EPS SC70, 6L.EPS MAX4480-MAX4483 Package Information (continued) 10 ______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown SOT5L.EPS 6LSOT.EPS ______________________________________________________________________________________ 11 MAX4480-MAX4483 Package Information (continued) MAX4480-MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown 8LUMAXD.EPS Package Information (continued) 12 ______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown TSSOP,NO PADS.EPS 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. 13 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX4480-MAX4483 Package Information (continued)