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MAX4475–MAX4478/
MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
General Description
Features
● Low Input Voltage-Noise Density: 4.5nV/√Hz
● Low Input Current-Noise Density: 0.5fA/√Hz
● Low Distortion: 0.0002% THD+N (1kΩ load)
● Single-Supply Operation from +2.7V to +5.5V
The MAX4475–MAX4478/MAX4488/MAX4489 wide-
band, 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). These features make the devices an ideal
choice for applications that require low distortion and/or
low noise.
● Input Common-Mode Voltage Range Includes
Ground
● Rail-to-Rail Output Swings with a 1kΩ Load
● 10MHz GBW Product, Unity-Gain Stable
(MAX4475–MAX4478)
● 42MHz GBW Product, Stable with AV ≥ +5V/V
(MAX4488/MAX4489)
For power conservation, the MAX4475/MAX4488 offer
a low-power shutdown mode that reduces supply cur-
rent to 0.01µA and places the amplifiers’ outputs into a
high-impedance state. These amplifiers have outputs
which swing rail-to-rail and their input common-mode
voltage range includes ground. The MAX4475–MAX4478
are unity-gain stable with a gain-bandwidth product
of 10MHz. The MAX4488/4489 are internally compen-
sated for gains of +5V/V or greater with a gain-band-
width product of 42MHz. The single MAX4475/MAX4476/
MAX4488 are available in space-saving, 6-pin SOT23
and TDFN packages.
● Excellent DC Characteristics
V
= 70µV
= 1pA
OS
I
BIAS
Large-Signal Voltage Gain = 120dB
● Low-Power Shutdown Mode:
● Reduces Supply Current to 0.01µA
● Places Output in High-Impedance State
● Available in Space-Saving SOT23, TDFN, µMAX®,
and TSSOP Packages
● AEC-Q100 Qualified, Refer to Ordering Information
for the List of /V Parts
Applications
● ADC Buffers
Ordering Information at end of data sheet.
● DAC Output Amplifiers
● Low-Noise Microphone/Preamplifiers
● Digital Scales
● Strain Gauges/Sensor Amplifiers
● Medical Instrumentation
● Automotive
Typical Operating Characteristic
INPUT VOLTAGE-NOISE DENSITY
vs. FREQUENCY
25
µMAX is a registered trademark of Maxim Integrated Products, Inc.
20
15
10
5
0
10
100
1k
10k
100k
FREQUENCY (Hz)
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
19-2137; Rev 11; 4/19