MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps General Description The MAX4475–MAX4478/MAX4488/MAX4489 wideband, low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.7V. They draw 2.2mA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.5nV/√Hz) and low input current-noise density (0.5fA/√Hz).
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage (VDD to VSS) ......................-0.3V to +6.0V Analog Input Voltage (IN_+, IN_-)....(VSS - 0.3V) to (VDD + 0.3V) SHDN Input Voltage....................................(VSS - 0.3V) to +6.0V Output Short-Circuit Duration to Either Supply ..........Continuous Continuous Input Current (IN+, IN-) .................................
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps DC ELECTRICAL CHARACTERISTICS (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, SHDN = VDD, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.
AC ELECTRICAL CHARACTERISTICS (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, SHDN = VDD, TA = +25°C.) PARAMETER Total Harmonic Distortion Plus Noise (Note 6) SYMBOL THD + N Capacitive-Load Stability Gain Margin CONDITIONS VOUT = 2VP-P, AV = +5V/V (MAX4488/MAX4489), RL = 1kΩ to GND MIN TYP ΦM Settling Time Delay Time to Shutdown tSH Enable Delay Time from Shutdown tEN Power-Up Delay Time MAX f = 1kHz 0.0005 f = 20kHz 0.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, input noise floor of test equipment =10nV/√Hz for all distortion measurements, TA = +25°C, unless otherwise noted.) OUTPUT VOLTAGE vs. OUTPUT LOAD CURRENT 0.20 70 60 60 50 VDD - VOH 0.10 VOL VOL (mV) VDD - VOH (mV) 50 0.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, input noise floor of test equipment =10nV/√Hz for all distortion measurements, TA = +25°C, unless otherwise noted.) SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.5 1.0 2.0 VDD = 3V 1.5 1.0 0.5 0.5 0 3.0 3.5 4.0 4.5 5.0 5.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, input noise floor of test equipment =10nV/√Hz for all distortion measurements, TA = +25°C, unless otherwise noted.) MAX4475 toc21 25 AV = +1 RL = 100kΩ 1 THD + N (%) 20 10 VDD = 3V OR 5V VP-P NOISE = 260nVP-P 15 200nV/div 10 0.1 0.01 fO = 20kHz, FILTER BW = 80kHz 5 0.001 0 0.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL tied to VDD/2, input noise floor of test equipment =10nV/√Hz for all distortion measurements, TA = +25°C, unless otherwise noted.) MAX4488/MAX4489 SMALL-SIGNAL PULSE RESPONSE MAX4488/MAX4489 LARGE-SIGNAL PULSE RESPONSE MAX4477/MAX4478/MAX4489 CROSSTALK vs.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Detailed Description The MAX4475–MAX4478/MAX4488/MAX4489 singlesupply operational amplifiers feature ultra-low noise and distortion. Their low distortion and low noise make them ideal for use as preamplifiers in wide dynamicrange applications, such as 16-bit analog-to-digital converters (see Typical Operating Circuit).
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Low Noise The amplifier’s input-referred noise-voltage density is dominated by flicker noise at lower frequencies, and by thermal noise at higher frequencies.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Typical Application Circuit +5V +5V 7 VDD CS SERIAL INTERFACE +2.5V SCLK U2 MAX4475AUA REF U1 MAX5541ESA 3 OUT DIN 0 to +2.5V OUTPUT 6 AGND DGND 2 4 8 SHDN Typical Operating Circuit 5V 470pF 0.1µF 3.09kΩ 1% 7.87kΩ 1% 220pF 3 8 220pF 1 3.83kΩ 1% 13.7kΩ 1% 5 1/2 MAX4477 7 220pF 2 4 7.15kΩ 1% 1/2 MAX4477 220pF 6 10.0kΩ 1% 10.0kΩ 1% 10.0kΩ 1% capacitor placed close to the VDD pin.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps TOP VIEW TOP VIEW + + N.C. INA- 2 VSS 4 7 VDD 6 OUT 5 N.C. OUTA 1 INA- 2 INA+ 14 OUTD INA+ 3 12 IND+ VDD 4 MAX4478 6 INB- 5 INB+ OUT 1 VSS 2 MAX4475 MAX4488 6 VDD 5 SHDN 6 5 4 MAX4475 MAX4488 11 VSS 10 INC+ INB- 6 9 INC- OUTB 7 8 OUTC IN+ 3 4 INEP + SOT23-6 1 OUT INB+ 5 SO/TSSOP 3 1 VSS 2 MAX4476 6 VDD 5 N.C. N.C.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Ordering Information (continued) PART TEMP RANGE PINPACKAGE TOP MARK MAX4476AUT+T -40°C to +125°C 6 SOT23 AAZX MAX4476ATT+T -40°C to +125°C 6 TDFN-EP* +ADF MAX4477AUA+ -40°C to +125°C 8 µMAX — MAX4477AUA+ -40°C to +125°C 8 µMAX — MAX4477ASA+ -40°C to +125°C 8 SO — MAX4478AUD+ -40°C to +125°C 14 TSSOP — MAX4478AUD/V+ -40°C to +125°C 14 TSSOP — MAX4478ASD+ -40°C to +125°C 14 SO — MAX44
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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 PACKAGE TYPE PACKAGE CODE OUTLINE NO.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
MAX4475–MAX4478/MAX4488/MAX4489 SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 4 12/09 Added lead-free designations and an automotive part to the Ordering Information and added input current spec in Absolute Maximum Ratings section 1, 2, 13 5 7/10 Added /V designation to the MAX4475 product and soldering temperature 1, 2 6 6/12 Added /V designation for MAX4489.