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19-1599; Rev 3; 8/01 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown General Description M Features The MAX4400–MAX4403 low-cost, general-purpose op A ® escent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4401 offers a low-power shutdown mode that reduces supply current to 1µA (max) and puts the amplifier’s output in a high-impedance state. These devices deliver ±1.4mA of output current and are unity-gain stable with a 1MHz gainbandwidth product driving capacitive loads up to 400pF. The MAX4400–MAX4403 are specified to +125°C, making them suitable for use in a variety of harsh environments, such as automotive applications. The MAX4400 single amplifier is available in ultra-small 5-pin SC70 and space-saving 5-pin SOT23 packages. The single MAX4401 includes the shutdown feature and is available in a 6-pin SC70. The MAX4402 is a dual amplifier av ailable in 8-p in S OT23 and SO packages . The MAX4403 quad amplifier is packaged in a 14-pin TSSOP or SO. X 4 4 0 0 o 320µA Quiescent Current per Amplifier o Available in Space-Saving Packages 5-Pin SC70 (MAX4400) 6-Pin SC70 (MAX4401) 8-Pin SOT23 (MAX4402) o 110dB A with 2kLoad M A X o 0.015% THD with 2kLoad 4 4 0 3 o 1.4mA of Sink and Source Load Current LOAD o Ground-Sensing Inputs Applications Ordering Information Single-Supply, Zero-Crossing Detectors PART Instruments and Terminals Portable Communications MAX4400AXK-T MAX4400AUK-T Electronic Ignition Modules Infrared Receivers Sensor Signal Detection TEMP RANGE -40°C to +125°C -40°C to +125°C PART TOP 5 SC70-5 5 SOT23-5 AAG ADNP MAX4401AXT-T -40°C to +125°C 6 SC70-6 MAX4402AKA-T -40°C to +125°C 8 SOT23-8 AAB AADI — MAX4402AUA -40°C to +125°C 8 µMAX MAX4402ASA MAX4403AUD -40°C to +125°C -40°C to +125°C 8 SO 14 TSSOP — — MAX4403ASD -40°C to +125°C 14 SO — Selector Guide NO. OF AMPLIFIERS PER PACKAGE PIN- Pin Configurations SHUTDOWN MODE MAX4400 1 No MAX4401 1 Yes MAX4402 2 No MAX4403 4 No MAX440 0 IN+ 1 5 V DD IN+ 1 6 VDD VSS 2 VSS 2 5 SHDN IN- 3 4 OUT IN- 3 SC70-5/SOT23-5 Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. MAX4401 – 4 OUT SC70-6 Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 Rail-to-Rail Op Amps with Shutdown ABSOLUTE MAXIMUM RATINGS 3 0 4 Output Short-Circuit Duration 8-Pin SO (derate 5.88mW/°C above +70°C) ............... 471mW 4 X 5-Pin SC70 (derate 2.5mW/°C above +70°C)............. 200mW Operating Temperature Range .........................-40°C to +125°C 5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW Storage Temperature Range .............................-65°C to +150°C A 6-Pin SC70 (derate 2.27mW/°C above +70°C) ............181mW Lead Temperature (soldering, 10s) .................................+300°C M Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional – Single/Dual/Quad, Low-Cost, Single-Supply, 0 absolute maximum rating conditions for extended periods may affect device reliability. 0 ELECTRICAL 4 Power-Supply CHARACTERISTICS (V = +5V, V = 0,(V V to= V 0, V) .........................-0.3V = V /2, R = to connected to V 8-Pin /2, SHDN V (MAX4401 T = +25°C, unless Voltage +6V SOT23=(derate 7.52mW/°C only), above +70°C) ..........602mW All Othernoted.) Pins ...................................(V 4 otherwise X OUT Shorted to V or V PARAMETER - 0.3V) to (V + 0.3V) ................................... SYMBOL Continuous A Continuous Power Dissipation (T = +70°C) DD M Supply Current per Amplifier V I Supply Current in Shutdown ISHDN Input Offset Voltage V Input Bias Current IB 8-Pin µMAX (derate 4.5mW/°C above +70°C) ............ 362mW 14-Pin TSSOP (derate 8.33mW/°C MIN above +70°C) ...... 667mW CONDITIONS TYP MAX 14-Pin SO (derate 8.33mW/°C above +70°C)............. 667mW = 2.5V 320 VDD = 5.0V 410 SHDN = VSS (Note 1) MAX4400/MAX4401 0.00002 ±0.8 MAX4402/MAX4403 ±1.0 (Note 2) ±0.1 Input Offset Current IOS (Note 2) ±0.1 Input Resistance Input Common-Mode Voltage RIN Differential or common mode V Inferred from CMRR test UNITS µA 700 1 µA ±4.5 mV ±5.5 ±100 pA ±100 pA 1000 G V V - 1.4 V Range Common-Mode Rejection Ratio CMRR VSS VCM VDD - 1.4V Power-Supply Rejection Ratio PSRR 2.5V VDD 5.5V VOL SS OUT Output Voltage High V Output Voltage Low |V V |V DD -V -V | 68 84 78 R = 100k120 dB 100 dB RL = 2k90 110 R = 100k3 mV RL = 2k55 R = 100k2 200 mV | L Sourcing Output Short-Circuit Current Shutdown Mode Output Sinking Device in shutdown mode, SHDN = V I Leakage 12 mA 30 , ±1.0 µA VSS < VOUT < VCC (Note 1) ✕ IL IH SHDN Input Current Gain-Bandwidth Product Phase Margin IIL, IIH GBW DD ✕ DD SHDN = VDD or VSS (Note 1) M Gain Margin Slew Rate 2 ±0.001 800 70 20 SR _______________________________________________________________________________________ 1 ±500 nA kHz degrees dB V/µs Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown M ELECTRICAL CHARACTERISTICS (continued) (V = +5V, V = 0, V = 0, V = V /2, R = connected to V /2, SHDN = V (MAX4401 only), T = +25°C, unless A otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage Noise Density en f = 10kHz 36 nV/ Hz Input Current Noise Density in f = 10kHz 1 fA/ Hz 400 pF 0.4 µs 6 µs 5 µs 2.5 pF Capacitive-Load Stability CLOAD Shutdown Delay Time tSHDN Enable Delay Time tEN Power-On Time tON Input Capacitance CIN Total Harmonic Distortion Total Harmonic Distortion Settling Time to 0.1% THD tS AV = +1V/V (Note 1) (Note 1) f = 10kHz, VOUT = 2Vp-p, AV = +1V/V RL = 100k 0.009 RL = 2k 0.015 M A X 4 4 0 3 % 7 VOUT = 2V step X 4 4 0 0 µs ELECTRICAL CHARACTERISTICS (VDD = +5V, VSS = 0, VCM = 0, VOUT = VDD/2, RL = connected to VDD/2, TA = -40°C to +125°C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL Supply Voltage Range VDD Supply Current per Amplifier IDD Input Offset Voltage VOS Input Offset Voltage Drift Input Bias Current CONDITIONS Inferred from PSRR test MIN TYP 2.5 MAX 5.5 V 800 µA MAX4400/MAX4401 ±6.5 MAX4402/MAX4403 ±8.0 ±1 TCVOS UNITS mV µV/°C IB (Note 2) ±100 pA Input Offset Current IOS (Note 2) ±100 pA Input Common-Mode Voltage Range VCM Inferred from CMRR test VSS VSS VCM VDD - 1.5V 65 VSS VCM VDD - 1.0V TA = -20°C to +125°C 50 2.5V VCC 5.5V 74 Common-Mode Rejection Ratio CMRR Power-Supply Rejection Ratio PSRR Shutdown Mode Output Leakage IOUTSHDN Device in shutdown mode, SHDN = VSS, VSS < VOUT < VDD (Note 1) SHDN Logic Low VIL (Note 1) SHDN Logic High VIH (Note 1) VDD - 1.5 V – dB dB TA = -40°C to +85°C ±1.0 TA = +85°C to +125°C ±5.0 µA 0.3 ✕ VDD V V 0.7 ✕ VDD SHDN Input Current IIL, IIH SHDN = VDD or VSS (Notes 1, 2) ±1000 Large-Signal Voltage Gain AVOL VSS + 0.3V VOUT VDD - 0.3V, RL = 2k Output Voltage High VOH Specified as |VDD - VOH|, RL = 2k 250 mV Output Voltage Low VOL Specified as |VSS - VOL|, RL = 2k 100 mV 85 nA dB Note 1: Shutdown mode is only available in the 6-pin SC70 single op amp (MAX4401). Note 2: Guaranteed by design. Note 3: Specifications are 100% tested at TA = +25°C (exceptions noted). All temperature limits are guaranteed by design. _______________________________________________________________________________________ 3 Rail-to-Rail Op Amps with Shutdown Typical Operating Characteristics 3 (V DD = +5V, V SS = 0, V CM = V DD /2, V SHDN = 5V, R L = connected to V DD /2, TA = +25°C, unless otherwise noted.) 0 4 GAIN AND PHASE GAIN AND PHASE POWER-SUPPLY REJECTION RATIO 4 X A Single/Dual/Quad, Low-Cost, Single-Supply, r M – 0 0 4 4 X S g d E 0 -20 -30 d )S -70 -120 -140 -160 -180 A M 0 E -20 gd sA eeH -40 P / B -80 N-100 G AV = +1000V/V CL 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) 10 0t403 oM 40 10M A M ) E 10 C N D P M 1 T P 4o 04 X 0.01 0.001 100 1k 10k 100k 5 ct 0 4 400 A T N P R RU C 35 Y0 P 30 -40 -20 0 1 M 0 FREQUENCY (Hz) 20 40 60 A (T100 N P R RU C Y 10 P 6 ct 0 4 1 -40 -20 0 A 40 60 80 100 120 OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE 70 M 1000 20 TEMPERATURE (C) INPUT OFFSET VOLTAGE vs. TEMPERATURE 1500 A 1k 80 100 120 60 RL = 2kto VDD/2 A 50 1k )A (K IE 7c t0 4 10 8 ct 0 4 A V -500 0.1 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) ) -1500 -40 S 0 40 V 9 ct 0 4 20 -100 0500 4 VSS 10k TEMPERATURE (C) MAX4401 OUTPUT LEAKAGE CURRENT vs. TEMPERATURE V VSHDN = VSS OUT = DD/2V SHDN= ) 1M V A ) 450 TO0.1 1M 100k 1k 10k 100k FREQUENCY (Hz) c 4X M MAX4401 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE SUPPLY CURRENT vs. 500 TEMPERATURE 100 10 100 N-100 G OUTPUT IMPEDANCE vs. FREQUENCY 1000 -120 vs. FREQUENCYL(C = 400pF) -90 -140 80 2 -160 = +1000V/V t0 AV 4 -110 CL -180 A -40 M (R-50 H 1 10 100 1k 10k 100k 1M 10M 10 /se-6020 B FREQUENCY (Hz) d 10 -20 0 20 40 60 80 100 12 0 TEMPERATURE (C) ) m 0 H V -40 D 30 -20 _______________________________________________________________________________________ 0 20 40 60 80 100 120 TEMPERATURE (C) Rail-to-Rail Op Amps with Shutdown M Typical Operating Characteristics (continued) A Single/Dual/Quad, Low-Cost, Single-Supply, (VDD = +5V, VSS = 0, VCM = VDD/2, VSHDN = 5V, RL = connected to VDD/2, TA = +25°C, unless otherwise noted.) OUTPUT VOLTAGE SWING LOW LARGE-SIGNAL GAIN 0 to 50 R = 2kto /2 V L COMMON-MODE REJECTION RATIO 1 04M X DD 40 ) 1 to 1 M -60 0 4 X m 30 E V L V 20 -80 L 120 100 0 4 4 0 B (N 20 A -100 -40 -20 –A X 40 B (R R 20 40 60 80 100 120 TEMPERATURE (°C) 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VO (V) 3 UT MINIMUM OPERATING VOLTAGE LARGE-SIGNAL GAIN vs. TEMPERATURE 140 135 TOTAL HARMONIC DISTORTION vs. FREQUENCY vs. TEMPERATURE 3.0 RL = 2k A 3c t 04 130 )B125 dIN120 G A 115 0.1 A 4 ct 0 4 2.5 ) I 2.0 (N V M A AV = +1 0.01 ) D % TH 5 ct 0 4 R = 2k V = 2Vp-p 0.001 110 1.5 105 0.000 1 10 100 -40 -20 0 20 40 60 80 100 120 1.0 -40 -20 TEMPERATURE (°C) RL = 100k VOUT = 2Vp-p AV = +1 20 40 60 80 100 120 10 A ) % D TH 1 TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE A RL = 2k f = 10kHz BW = 20kHz 1k 10 k FREQUENCY (Hz) 100k TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE 10 A RL = 100k f = 10kHz BW = 20kHz 1 % % T0.0 6c t0 4 0.01 1 7 ct 0 4 )0.001 0.000 1 10 100 TEMPERATURE (°C) TOTAL HARMONIC DISTORTION vs. FREQUENCY 0.01 0 8 ct 0 4 0.001 ) 0.0001 100 1k 10 k FREQUENCY (Hz) 100k ( 0.1 0 0.0001 N + D 0.5 1.0 1.5 VIN (Vp-p) 2.0 2.5 3. 0 ( 0.1 N + D H 0 0 M 80 -90 0 vs. OUTPUT VOLTAGE ) G60 C M 10 to 1 0 M 4 X R = 2k -70 ) 2 140 X 4 4 0 0.5 1.0 1.5 VIN (Vp-p) 2.0 2.5 3.0 _______________________________________________________________________________________ 5 Rail-to-Rail Op Amps with Shutdown Typical Operating Characteristics (continued) 3 (V DD = +5V, V SS = 0, V CM = V DD /2, V SHDN = 5V, R L = connected to VDD/2, TA = +25°C, unless otherwise noted.) 0 4 NONINVERTING SMALL-SIGNAL 4 X A A A Single/Dual/Quad, Low-Cost, Single-Supply, F M – 0 0 4 UNSTABLE REGION 1000 50mV/div STABLE REGION A A pC 500 D O E2000 V T 0 0 C A M 1500 4 X OUT CAPACITIVE-LOAD STABILITY RESPONSE 9 A = +1 1k A 10k RESISTIVE LOAD () TRANSIENT co 0 c 4 100 4 o k 0 4 RL = 2k 2s/div IN NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE 30 c RL = 2k A V= +1V/V PERCENT OVERSHOOT vs. CAPACITIVE LOAD c NEGATIVE OVERSHOOT M o 0 4 XIN 25 M 20 1 2V/div 15 O 10 OUT 2 5 POSITIVE OVERSHOOT 0 10s/di v )% T O H S E SUPPLY CURRENT vs. SUPPLY 450 VOLTAGE 400 130 0 A VOUT = VDD/2 350 ) 300 T N 250 R U C 200 Y P PS 150 4 ct 100 50 100 20 0 300 CLOAD (pF) 400 500 o 600 0 4 X MAX4402/MAX4403 CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY 0 A 5 ct B d 120 N O T A )S O L100 N 90 H C O 80 EC 60 N A 50 0 0 6 0 1 2 3 4 5 SUPPLY VOLTAGE (V) 6 0.01 4 0.1 1 10 100 FREQUENCY (kHz) _______________________________________________________________________________________ 1000 4 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown M Pin Description A PIN NAME X 4 4 0 0 FUNCTION MAX4400 MAX4401 MAX4402 MAX4403 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 singlesupply operation 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 M A X 4 4 –0 3 Positive Supply Active-Low Shutdown Input. Connect to VDD for normal operation. Do not leave floating. Detailed Description Rail-to-Rail Output Stage The MAX4400–MAX4403 can drive a 2kload and still typically swing within 55mV of the supply rails. Figure 1 shows the output voltage swing of the MAX4400 configured with AV = +10V/V. Driving Capacitive Loads Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4400–MAX4403 are unity-gain stable for a rang e of capacitive loads to above 400pF. Figure 2 shows the response of the MAX4400 with an excessive capacitive load. Adding a series resistor between the output and the load capacitor (Figure 3) improves the 1V/div 100µs/div Figure 1. Rail-to-Rail Output Operation _______________________________________________________________________________________ 7 Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown 3 0 4 4 X IN RISO 50mV/div A M – 0 0 4 4 CL MAX440 0 MAX440 1 MAX440 2 MAX440 3 OUT 2s/div Figure 2. Small-Signal Transient Response with Excessive Figure 3. Capacitive-Load-Driving Circuit X Capacitive Load A M SHDN VDD 2V/div 2V/div OUT CL = 25pF R = 10MTO 400s/div GND 10s/div Figure 4. Shutdown Waveform Figure 5. Power-Up/Power-Down Waveform circuit’s response by isolating the load capacitance from the op amp’s output. Applications Information Shutdown Mode The MAX4401 features a low-power shutdown mode. When SHDN goes low, the supply current drops to 20pA (typ) and the output enters a hig h-impedance state. Pull SHDN high to enable the amplifier. Do not leave SH DN floating. Figure 4 show s the shutdown waveform. Power-Up The MAX4400–MAX4403 outputs typically settle within 5µs after power-up. Figure 5 shows the output voltage on power-up and power-down. 8 OUT 1V/div Power Supplies and Layout The MAX4400–MAX4403 operate from a single +2.5V to +5.5V power supply. Bypass the power supply with a 0.1µF capacitor to ground. Good layout techniques optimize perform ance 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 MAX4400/MAX4401 TRANSISTOR COUNT: 101 MAX4402 TRANSISTOR COUNT: 202 MAX4403 TRANSISTOR COUNT: 404 _______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown M Pin Configurations (continued) A X 4 4 0 0 MAX4403 OUTA 1 14 OUTD MAX4402 OUTA 1 INA- 2 13 IND- INA+ 3 12 IND+ V 11 8 VDD M OUTB 2 4 DD INA+ 3 A X SS 6 INBINB+ 5 4 4 0 3 10 INC+ INB+ SS INB- 6 9 INC- SOT23-8/SO/MAX OUTB 7 8 OUTC TSSOP/SO Package Information S E L , 7 S – _______________________________________________________________________________________ 9 Rail-to-Rail Op Amps with Shutdown Package Information (continued) 3 0 4 4 X A M – 0 0 4 4 X S Single/Dual/Quad, Low-Cost, Single-Supply, S P . 6 0 C A M 10 ______________________________________________________________________________________ Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown M Package Information (continued) S E L T SO A X 4 4 0 0 M A X 4 4 0 –3 ______________________________________________________________________________________ 11 Rail-to-Rail Op Amps with Shutdown Package Information (continued) 3 0 4 4 X A M – 0 0 4 4 X SO Single/Dual/Quad, Low-Cost, Single-Supply, S P . 8 3 T A M Maxim cannot assume responsibility for use of any circuitry other than circuitry ent irely 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 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.