19-2021; Rev 4; 7/11 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Features o o o o o o o Ultra-Low 750nA Supply Current Per Amplifier Ultra-Low +1.8V Supply Voltage Operation Ground-Sensing Input Common-Mode Range Outputs Swing Rail-to-Rail Outputs Source and Sink 11mA of Load Current No Phase Reversal for Overdriven Inputs High 120dB Open-Loop Voltage Gain o Low 500µV Input Offset Voltage o 9kHz Gain-Bandwidth Product (MAX4470/MAX4471/MAX4472) o 40kHz Gain-Bandwidth Product (MAX4464/MAX4474) o 250pF (min) Capacitive Load Capability o Available in Tiny, 6-Bump WLP, 5-Pin SC70, and 8-Pin SOT23 Packages Ordering Information Applications Battery-Powered Systems Portable Instrumentation Pagers and Cellphones Micropower Thermostats Electrometer Amplifiers Solar-Powered Systems Remote Sensor Active Badges pH Meters Pin Configurations MAX4470 + IN+ VSS A1 A2 IN- VDD B1 B2 OUT N.C. C1 C2 WLP BUMP SIDE DOWN Pin Configurations continued at end of data sheet. µMAX is a registered trademark of Maxim Integrated Products, Inc. PART TEMP RANGE PINPACKAGE TOP MARK MAX4464EXK+T -40°C to +85°C 5 SC70 +ABT MAX4464EUK+T -40°C to +85°C 5 SOT23 +ADPI MAX4470EXK+T -40°C to +85°C 5 SC70 MAX4470EUK+T -40°C to +85°C 5 SOT23 MAX4470EWT+ -40°C to +85°C 6 WLP MAX4471EKA+T -40°C to +85°C 8 SOT23 MAX4471ESA+ -40°C to +85°C 8 SO — MAX4472EUD+ -40°C to +85°C 14 TSSOP — MAX4472ESD+ -40°C to +85°C 14 SO MAX4474EKA+T -40°C to +85°C 8 SOT23 +AAEL MAX4474EUA+ -40°C to +85°C 8 µMAX — +ABS +ADPH +BP +AAEK — -40°C to +85°C 8 SO MAX4474ESA+ +Denotes a lead(Pb)-free/RoHS-compliant package. — Selector Guide PART NO. OF AMPLIFIERS GAINBANDWIDTH MAX4464 1 40kHz 5V/V MAX4470 1 9kHz 1V/V MAX4471 2 9kHz 1V/V MAX4472 4 9kHz 1V/V MAX4474 2 40kHz 5V/V MINIMUM STABLE GAIN ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 General Description The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems. The rail-to-rail output stage of the MAX4464/MAX4470/ MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100kΩ load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages. MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps ABSOLUTE MAXIMUM RATINGS VDD to VSS ...............................................................-0.3V to +6V IN_+ or IN_-......................................(VSS - 0.3V) to (VDD + 0.3V) OUT_ Shorted to VSS or VDD ......................................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 6-Bump WLP (derate 10.5mW/°C above +70°C) .............840mW 8-Pin SOT23 (derate 8.9mW/°C above +70°C).................714mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) ..................362mW 8-Pin SO (derate 5.88mW/°C above +70°C)....................471mW 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 ......................... -40°C to +85°C Junction Temperature .....................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C Soldering Temperature (reflow) ......................................+260°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 (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = +25°C, unless otherwise noted.) PARAMETER Supply Voltage Range SYMBOL VDD CONDITIONS Guaranteed by PSRR tests MIN TYP 1.8 VDD = +1.8V 0.6 VDD = +5.0V 0.75 MAX UNITS 5.5 V Supply Current (Per Amplifier) IDD Input Offset Voltage VOS ±0.5 ±7.0 mV IB ±200 ±1500 pA IOS ±12.5 Input Bias Current Input Offset Current Input Common-Mode Voltage Range VCM Guaranteed by the CMRR test VSS 1.2 µA pA VDD 1.1 V Common-Mode Rejection Ratio CMRR Specified with VSS ≤ VCM ≤ (VDD - 1.1V) 70 95 dB Power-Supply Rejection Ratio PSRR +1.8V ≤ VDD ≤ +5.5V 70 90 dB RL = 1MΩ, VOUT = 50mV to VDD - 50mV 90 120 Large-Signal Voltage Gain AVOL RL = 100kΩ, VOUT = 200mV to VDD - 200mV 90 112 RL = 10kΩ, VOUT = 200mV to VDD - 200mV VOH Gain-Bandwidth Product Phase Margin 2 GBW φM 100 Swing high specified as VDD - VOH RL = 1MΩ 1 4 RL = 100kΩ 4 10 RL = 10kΩ 40 Swing low specified as VOL - VSS RL = 1MΩ 0.5 5 RL = 100kΩ 1 5 RL = 10kΩ 10 Output Voltage Swing VOL dB MAX4470/MAX4471/MAX4472 9 MAX4464/MAX4474 40 MAX4470/MAX4471/MAX4472 90 MAX4464/MAX4474 80 _______________________________________________________________________________________ mV kHz degrees Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL Slew Rate SR Input Voltage Noise en Output Short-Circuit Current Power-On Time Power-Off Time tON tOFF Capacitive Load CLOAD CONDITIONS VOUT = 4V step MIN TYP MAX4470/MAX4471/MAX4472 2 MAX4464/MAX4474 20 f = 1kHz 150 f = 10kHz 120 Shorted to VSS (sourcing) 11 Shorted to VDD (sinking) 36 MAX V/ms nV/√Hz mA 3 ms µs 2 No sustained oscillations UNITS 250 pF ELECTRICAL CHARACTERISTICS (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = TMIN to TMAX, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS Supply Voltage Range VDD Guaranteed by PSRR tests Supply Current (Per Amplifier) IDD VDD = +5.0V Input Offset Voltage VOS Input Offset Voltage Temperature Coefficient Input Bias Current MIN VCM Common-Mode Rejection Ratio CMRR Power-Supply Rejection Ratio PSRR Large-Signal Voltage Gain AVOL MAX UNITS 5.5 V 1.5 µA ±15 mV 8 TCVOS IB Input Common-Mode Voltage Range TYP 1.8 Guaranteed by the CMRR test VSS VSS ≤ VCM ≤ (VDD - 1.1V) 56 +1.8V ≤ VDD ≤ +5.5V, 0oC ≤ TA ≤ +85oC 65 +2V ≤ VDD ≤ +5.5V, -40oC ≤ TA ≤ +85oC 65 VOUT = 50mV to VDD - 50mV, RL = 1MΩ 75 VOUT = 200mV to VDD - 200mV, RL = 100kΩ 75 µV/°C 4.25 nA VDD 1.1 V dB dB dB VOH Swing high specified as VDD - VOH RL = 1MΩ 5 RL = 100kΩ 15 VOL Swing low specified as VOL - VSS RL = 1MΩ 5 RL = 100kΩ 5 Output Voltage Swing mV Note 1: All devices are production tested at TA = +25°C. All temperature limits are guaranteed by design. _______________________________________________________________________________________ 3 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) 0.6 0.5 0.4 0.3 0.6 0.5 0.4 0.3 0.40 0.35 0.30 0.25 0.20 0.15 0.2 0.10 0.1 0.1 0.05 0 0 0 -50 -25 0 25 50 75 -50 100 -25 0 25 50 75 SUPPLY VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) OFFSET VOLTAGE vs. COMMON-MODE VOLTAGE INPUT BIAS CURRENT vs. TEMPERATURE INPUT BIAS CURRENT vs. COMMON-MODE VOLTAGE 0.35 0.30 0.25 0.20 0.15 0.10 -100 -150 -200 -250 -300 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -30 -40 -50 -60 -80 -90 -400 0 -20 -70 -350 0.05 -50 -25 0 25 50 75 0 100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 COMMON-MODE VOLTAGE (V) TEMPERATURE (°C) COMMON-MODE VOLTAGE (V) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE 1.4 RL = 100kΩ 1.2 VOL - VSS (mV) -30 -40 -50 -60 1.0 0.8 0.6 -70 0.4 -80 RL = 1MΩ 10 100 1k FREQUENCY (Hz) 10k 3 2 RL = 1MΩ 0 0 -100 RL = 100kΩ 4 1 0.2 -90 5 VDD - VOH (mV) -20 6 4.0 MAX4470–74 toc09 1.6 MAX4470–74 toc07 0 -10 100 MAX4470–74 toc06 -50 0 -10 INPUT BIAS CURRENT (pA) 0.40 0 MAX4470–74 toc05 0.45 INPUT BIAS CURRENT (pA) MAX4470-74 toc04 0.50 4 0.45 0.2 0 MAX4470–74 toc03 0.7 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 OFFSET VOLTAGE (mV) MAX4470–74 toc02 0.7 0.8 0.50 MAX4470–74 toc08 SUPPLY CURRENT (µA) 0.8 0.9 SUPPLY CURRENT (µA) MAX4470–74 toc01 0.9 OFFSET VOLTAGE vs. TEMPERATURE SUPPLY CURRENT PER AMPLIFIER vs. TEMPERATURE OFFSET VOLTAGE (mV) SUPPLY CURRENT PER AMPLIFIER vs. SUPPLY VOLTAGE PSRR (dB) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps -50 -25 0 25 50 TEMPERATURE (°C) 75 100 -50 -25 0 25 50 TEMPERATURE (°C) _______________________________________________________________________________________ 75 100 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps -70 -80 -90 -100 0.8 0.6 0 25 50 75 70 60 -50 100 -25 0 CL = 12pF RL = 1MΩ AVCL = 1000V/V GAIN 180 135 0 GAIN (dB) 90 45 -45 PHASE -90 10 100 1k 50 75 2.5 100 10k -135 100k 5.0 0 -80 -100 -45 PHASE -120 RL = 1MΩ AVCL = 1000V/V CL = 250pF -90 100 1k 10k -140 -135 100k 10 100 1k 10k 100k FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) MAX4470/MAX4471/MAX4472 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY VOLTAGE NOISE DENSITY vs. FREQUENCY MAX4470/MAX4471/MAX4472 STABILITY vs. CAPACITIVE AND RESISTIVE LOADS 0.10 CAPACITIVE LOAD (pF) NOISE (nV/√Hz) 1.00 1k 100 10 0.01 100 1k FREQUENCY (Hz) 10k MAX4470–74 toc18 100k MAX4470–74 toc17 10k MAX4470–74 toc16 10.00 10 4.5 -60 90 45 10 4.0 -40 180 135 GAIN 1 3.5 CROSSTALK vs. FREQUENCY MAX4470–74 toc14 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 3.0 OUTPUT VOLTAGE (Vp-p) MAX4470/MAX4471/MAX4472 GAIN AND PHASE vs. FREQUENCY MAX4470–74 toc13 PHASE (deg) GAIN (dB) MAX4470/MAX4471/MAX4472 GAIN AND PHASE vs. FREQUENCY 1 25 TEMPERATURE (°C) TEMPERATURE (°C) 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 RL = 10kΩ 100 MAX4470 toc15 -25 110 80 CROSSTALK (dB) -50 RL = 100kΩ 90 0.4 0 -120 RL = 1MΩ 120 1.0 0.2 -110 THD + N (%) 130 AVOL (dB) -60 1.2 PHASE (deg) CMRR (dB) -50 140 MAX4470-74 toc11 -40 MINIMUM SUPPLY VOLTAGE (V) -30 AVOL vs. OUTPUT VOLTAGE SWING 1.4 MAX4470–74 toc10 -20 MINIMUM SUPPLY VOLTAGE vs. TEMPERATURE MAX4470-74 toc12 COMMON-MODE REJECTION RATIO vs. TEMPERATURE 10k UNSTABLE REGION 1k 100 10 100 1k FREQUENCY (Hz) 10k 100k 10k 100k 1M RESISTIVE LOAD (Ω) _______________________________________________________________________________________ 5 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE IOUT vs. VOUT MAX4470–74 toc19 36 ISINK 32 28 IOUT (mA) MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE MAX4470 toc20 40 MAX4470 toc21 VDD = +5V AV = +1V/V RL = 1MΩ CL = 12pF INPUT 500mV/div VDD = +5V AV = +1V/V RL = 1MΩ CL = 250pF INPUT 50mV/div 24 20 16 12 OUTPUT 500mV/div ISOURCE OUTPUT 50mV/div 8 4 0 0 1 2 3 4 500µs/div 500µs/div MAX4470/MAX4471/MAX4472 LARGE-SIGNAL STEP RESPONSE MAX4470/MAX4471/MAX4472 LARGE-SIGNAL STEP RESPONSE 5 VOUT (V) MAX4470/MAX4471/MAX4472 SMALL-SIGNAL STEP RESPONSE MAX4470 toc22 VDD = +5V AV = +1V/V RL = 1MΩ CL = 12pF INPUT 500mV/div OUTPUT 50mV/div VDD = +5V AV = +1V/V RL = 1MΩ CL = 1000pF INPUT 500mV/div OUTPUT 500mV/div OUTPUT 500mV/div 500µs/div 500µs/div 500µs/div MAX4470/MAX4471/MAX4472 PERCENT OVERSHOOT vs. CAPACITIVE LOAD MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY GAIN (dB) 20 RL = 100kΩ 15 10 -2 -3 -4 RL = 10kΩ 5 0 50 100 150 CLOAD (pF) 200 250 300 AV = 1 -1 -2 -3 -4 -5 -5 -6 -6 -7 0 1 0 AV = 1 -1 MAX4470–74 toc27 1 0 RL = 100kΩ VOUT = 100mVP-P CL = 12pF 2 GAIN (dB) RL = 1MΩ RL = 10kΩ VOUT = 100mVP-P CL = 12pF 2 3 MAX4470–74 toc26 25 3 MAX4470–74 toc25 30 6 MAX4470 toc24 MAX4470 toc23 VDD = +5V AV = +1V/V RL = 1MΩ CL = 1000pF INPUT 50mV/div PERCENT OVERSHOOT (%) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps -7 100 1k FREQUENCY (Hz) 10k 100 1k 10k FREQUENCY (Hz) _______________________________________________________________________________________ 100k Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps -3 -2 -3 -3 -4 -5 -5 -5 -6 -6 -6 -7 -7 10k 1k 100 10k 1k 10k FREQUENCY (Hz) MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY MAX4464/MAX4474 GAIN AND PHASE vs. FREQUENCY MAX4464/MAX4474 GAIN AND PHASE vs. FREQUENCY GAIN (dB) -1 -2 -3 -4 -5 -6 -7 100 1k RL =1MΩ CL = 8pF AVCL = 1000V/V 90 45 PHASE 0 -45 -90 10 100 1k 10k -135 100k 100,000 CAPACITIVE LOAD (pF) 0 PHASE -45 -90 10 100 1k 10k -135 100k MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE MAX4464 toc35 MAX4464 toc34 0.01 45 FREQUENCY (Hz) 1 0.1 90 GAIN 1 MAX4464/MAX4474 STABILITY vs. CAPACITIVE AND RESISTIVE LOADS MAX4464/MAX4474 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX4464 toc33 180 RL =1MΩ CL = 250pF 135 AVCL = 1000V/V 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 FREQUENCY (Hz) FREQUENCY (Hz) 10 135 GAIN 1 10k 180 GAIN (dB) 0 MAX4464 toc32 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 PHASE (degrees) AV = 1 MAX4470–74 toc31 1 -7 100 FREQUENCY (Hz) RL = 1MΩ VOUT = 1VP-P CL = 12pF 2 100k FREQUENCY (Hz) 3 THD + N (%) -1 -4 1k AV = 1 -2 -4 100 GAIN (dB) AV = 1 -1 GAIN (dB) -2 1 0 PHASE (degrees) AV = 1 -1 GAIN (dB) 1 0 10,000 VDD = +5V AV = +5V/V RL = 1MΩ CL = 8pF INPUT 10mV/div MAX4464 toc36 0 RL = 100kΩ VOUT = 1VP-P CL = 12pF 2 GAIN (dB) 1 RL = 10kΩ VOUT = 1VP-P CL = 12pF 2 3 MAX4470–74 toc29 RL = 1MΩ VOUT = 100mVP-P CL = 12pF 2 3 MAX4470–74toc28 3 MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY MAX4470/MAX4471/MAX4472 LARGE-SIGNAL GAIN vs. FREQUENCY MAX4470–74 toc30 MAX4470/MAX4471/MAX4472 SMALL-SIGNAL GAIN vs. FREQUENCY UNSTABLE REGION 1000 OUTPUT 50mV/div 100 0.001 10 100 1k FREQUENCY (Hz) 10k 10k 100k 1M 500µs/div RESISTIVE LOAD (Ω) _______________________________________________________________________________________ 7 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) INPUT 10mV/div INPUT 100mV/div OUTPUT 500mV/div OUTPUT 50mV/div OUTPUT 50mV/div VDD = +5V AV = +5V/V RL = 1MΩ CL = 8pF 500µs/div 500µs/div 500µs/div MAX4464/MAX4474 PERCENT OVERSHOOT vs. CAPACITIVE LOAD MAX4464/MAX4474 LARGE-SIGNAL STEP RESPONSE OUTPUT 500mV/div MAX4464 toc41 25 PERCENT OVERSHOOT (%) INPUT 100mV/div 30 MAX4464 toc40 VDD = +5V AV = +5V/V RL = 1MΩ CL = 1000pF RL = 1MΩ 20 RL = 100kΩ 15 RL = 10kΩ 10 5 0 500µs/div 0 50 100 150 200 250 300 CLOAD (pF) MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY 1 RL = 10kΩ VOUT = 100mVP-P CL = 12pF 0 1 GAIN (dB) -1 -2 -3 -2 -3 -4 -5 -5 -6 -6 -7 -7 10k FREQUENCY (Hz) 100k AV = +5 -1 -4 1k RL = 100kΩ VOUT = 100mVP-P CL = 12pF 0 AV = +5 100 8 2 MAX4464 toc43 2 3 MAX4464 toc42 3 MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY 100 1k 10k FREQUENCY (Hz) _______________________________________________________________________________________ 100k MAX4464 toc39 VDD = +5V AV = +5V/V RL = 1MΩ CL = 1000pF MAX4464 toc38 VDD = +5V AV = +5V/V RL = 1MΩ CL = 250pF INPUT 10mV/div MAX4464/MAX4474 LARGE-SIGNAL STEP RESPONSE MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE MAX4464 toc37 MAX4464/MAX4474 SMALL-SIGNAL STEP RESPONSE GAIN (dB) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps MAX4464/MAX4474 SMALL-SIGNAL NORMALIZED GAIN vs. FREQUENCY 1 1 -2 -3 -3 -4 -5 -6 -6 -7 100 1k 10k 100k 1k 10k MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY RL = 100kΩ VOUT = 1VP-P CL = 12pF 3 2 1 0 RL = 1MΩ VOUT = 1VP-P CL = 12pF 0 GAIN (dB) AV = +5 -1 -2 -3 AV = +5 -1 -2 -3 -4 -4 -5 -5 -6 -6 -7 100k MAX4464 toc47 FREQUENCY (Hz) MAX4464 toc46 1 100 FREQUENCY (Hz) 3 GAIN (dB) -2 -5 -7 AV = +5 -1 -4 2 RL = 10kΩ VOUT = 1VP-P CL = 12pF 0 AV = +5 -1 GAIN (dB) GAIN (dB) 0 2 MAX4464 toc45 RL = 1MΩ VOUT = 100mVP-P CL = 12pF 2 3 MAX4464 toc44 3 MAX4464/MAX4474 LARGE-SIGNAL NORMALIZED GAIN vs. FREQUENCY -7 100 1k 10k 100k 100 FREQUENCY (Hz) 1k 10k 100k FREQUENCY (Hz) Pin Description PIN NAME MAX4464/ MAX4470 MAX4470 (WLP) MAX4471/ MAX4474 MAX4472 1 A1 — — IN+ FUNCTION Noninverting Amplifier Input — — 3 3 INA+ 2 A2 4 11 VSS Negative Power-Supply Voltage 3 B1 — — IN- Inverting Amplifier Input 4 C1 — — OUT Amplifier Output — — 2 2 INA- Inverting Amplifier Input (Channel A) Noninverting Amplifier Input (Channel A) _______________________________________________________________________________________ 9 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Pin Description (continued) PIN NAME FUNCTION MAX4464/ MAX4470 MAX4470 (WLP) MAX4471/ MAX4474 MAX4472 — — 1 1 — — 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) OUTA Amplifier Output (Channel A) 5 B2 8 4 VDD Positive Power-Supply Voltage — C2 — — N.C. No Connection. Not internally connected. Applications Information Ground Sensing The common-mode input range of the MAX4470 family extends down to ground, and offers excellent commonmode rejection. These devices are guaranteed not to undergo phase reversal when the input is overdriven. Power Supplies and Layout The MAX4470 family operates from a single +1.8V to +5.5V power supply. Bypass power supplies with a 0.1µF ceramic capacitor placed close to the VDD pin. Ground layout improves performance by decreasing the amount of stray capacitance and noise at the op amp’s inputs and outputs. To decrease stray capacitance, minimize PC board lengths and resistor leads, and place external components close to the op amps’ pins. Stability The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 maintain stability in their minimum gain configuration while driving capacitive loads. Although this product family is primarily designed for low-frequency applications, good layout is extremely important because lowpower requirements demand high-impedance circuits. The layout should also minimize stray capacitance at the amplifier inputs. However some stray capacitance may be unavoidable, and it may be necessary to add a 2pF to 10pF capacitor across the feedback resistor as shown in Figure 1. Select the smallest capacitor value that ensures stability. VCC VIN Bandwidth The MAX4470/MAX4471/MAX4472 are internally compensated for unity-gain stability and have a typical gain-bandwidth of 9kHz. The MAX4464/MAX4474 have a 40kHz typical gain-bandwidth and are stable for a gain of +5V/V or greater. MAX44_ _ VSS R2 R1 2pF TO 10pF Figure 1. Compensation for Feedback Node Capacitance 10 ______________________________________________________________________________________ Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps TOP VIEW + + IN+ MAX4470 MAX4464 1 5 + MAX4471 MAX4474 VDD OUTA 1 8 VDD INA- 2 7 OUTB INA+ 6 INB- VSS 2 IN- 3 4 OUT 3 SC70/SOT23 INA- 2 13 IND- INA+ 3 12 IND+ VDD 4 VSS 4 14 OUTD OUTA 1 5 MAX4472 11 VSS INB+ INB+ 5 10 INC+ INB- 6 9 INC- OUTB 7 8 OUTC SOT23/µMAX/SO SO/TSSOP Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ 11 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Pin Configurations (continued) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Package Information For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. 12 PACKAGE TYPE PACKAGE CODE DOCUMENT NO. LAND PATTERN NO. 5 SC70 X5+1 21-0076 90-0188 5 SOT23 6 WLP 8 µMAX 8 SOT23 8 SOIC 14 SOIC 14 TSSOP U5+1 W61B1+1 U8+1 K8+5 S8+2 S14+1 U14+1 21-0057 90-0174 21-0217 Refer to Application Note 1891 21-0036 90-0092 21-0078 90-0176 21-0041 90-0096 21-0041 90-0096 21-0066 90-0117 ______________________________________________________________________________________ Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ______________________________________________________________________________________ 13 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Package Information (continued) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. 14 ______________________________________________________________________________________ Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. D D ______________________________________________________________________________________ 15 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Package Information (continued) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. MARKING 0 0 PACKAGE OUTLINE, SOT-23, 8L BODY 21-0078 16 ______________________________________________________________________________________ J 1 1 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ______________________________________________________________________________________ 17 MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Package Information (continued) MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. 18 ______________________________________________________________________________________ Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps REVISION NUMBER REVISION DATE 3 6/10 Added WLP package 4 7/11 Updated power-on time specification DESCRIPTION PAGES CHANGED 1, 2, 9, 10, 11 3 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc. MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 Revision History