MAX4478 Maxim, MAX4478 Datasheet

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MAX4478

Manufacturer Part Number
MAX4478
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
Manufacturer
Maxim
Datasheet

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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.
For power conservation, the MAX4475/MAX4488 offer a
low-power shutdown mode that reduces supply current
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 compensated
for gains of +5V/V or greater with a gain-bandwidth
product of 42MHz. The single MAX4475/MAX4476/
MAX4488 are available in space-saving, 6-pin SOT23
and TDFN packages.
19-2137; Rev 5; 7/10
µMAX is a registered trademark of Maxim Integrated Products, Inc.
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.
Typical Operating Characteristic
ADC Buffers
DAC Output Amplifiers
Low-Noise Microphone/Preamplifiers
Digital Scales
Strain Gauges/Sensor Amplifiers
Medical Instrumentation
25
20
15
10
5
0
10
INPUT VOLTAGE-NOISE DENSITY
________________________________________________________________ Maxim Integrated Products
100
vs. FREQUENCY
General Description
FREQUENCY (Hz)
1k
SOT23, Low-Noise, Low-Distortion,
10k
Applications
Wide-Band, Rail-to-Rail Op Amps
100k
o Low Input Voltage-Noise Density: 4.5nV/√Hz
o Low Input Current-Noise Density: 0.5fA/√Hz
o Low Distortion: 0.0002% THD+N (1kΩ load)
o Single-Supply Operation from +2.7V to +5.5V
o Input Common-Mode Voltage Range Includes
o Rail-to-Rail Output Swings with a 1kΩ Load
o 10MHz GBW Product, Unity-Gain Stable
o 42MHz GBW Product, Stable with A
o Excellent DC Characteristics
o Low-Power Shutdown Mode:
o Available in Space-Saving SOT23, TDFN, µMAX
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad (connect to V
/V denotes an automotive qualified part.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
MAX4475AUT+T
MAX4475AUA+
MAX4475ASA+
MAX4475ATT+T
MAX4475AUT/V+T -40°C to +125°C
MAX4475
MAX4476
MAX4477
MAX4478
MAX4488
MAX4489
Ground
(MAX4475–MAX4478)
(MAX4488/MAX4489)
and TSSOP Packages
PART
V
I
Large-Signal Voltage Gain = 120dB
Reduces Supply Current to 0.01µA
Places Output in High-Impedance State
BIAS
PART
OS
= 70µV
= 1pA
G A IN B W
( M H z)
10
10
10
10
42
42
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
STABLE
GAIN
(V/V)
1
1
1
1
5
5
SS
Selector Guide
).
PIN-
PACKAGE
6 SOT23
8 µMAX
8 SO
6 TDFN-EP*
6 SOT23
NO. OF
AMPS
1
1
2
4
1
2
V
Features
≥ +5V/V
+ACQQ
SHDN
MARK
+ADD
AAZV
Yes
Yes
TOP
®
,
1

Related parts for MAX4478

MAX4478 Summary of contents

Page 1

... 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 compensated for gains of +5V/V or greater with a gain-bandwidth product of 42MHz ...

Page 2

... SO (derate 5.88mW/°C above +70°C)...............471mW 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 ...

Page 3

... OUT P 1kHz A = +1V/V V (MAX4475–MAX4478 20kHz R = 10kΩ to GND OUT P 1kHz A = +1V/V V (MAX4475–MAX4478 20kHz R = 1kΩ to GND OUT P 1kHz A = +5V/V V (MAX4488/MAX4489 20kHz R = 10kΩ to GND -40°C to +125°C, unless otherwise noted. A MIN TYP MAX - V ...

Page 4

... Note 3: Guaranteed by the PSRR test. Note 4: Guaranteed by design. Note 5: Full-power bandwidth for unity-gain stable devices (MAX4475–MAX4478) is measured in a closed-loop gain of +2V/V to accommodate the input voltage range, V Note 6: Lowpass-filter bandwidth is 22kHz for f = 1kHz and 80kHz for f = 20kHz. Noise floor of test equipment = 10nV/√Hz. ...

Page 5

SOT23, Low-Noise, Low-Distortion + OUT measurements +25°C, unless otherwise noted.) A OUTPUT VOLTAGE vs. OUTPUT LOAD CURRENT 0. ±10mV ...

Page 6

... SUPPLY VOLTAGE (V) MAX4475–MAX4478 GAIN AND PHASE vs. FREQUENCY 60 50 GAIN -10 -20 PHASE -30 -40 100 1k 10k 100k INPUT FREQUENCY (Hz) MAX4475–MAX4478 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 0.001 0.1 10 FREQUENCY (kHz) 6 _______________________________________________________________________________________ ...

Page 7

... TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 0.01 FILTER BW = 80kHz OUT P 1kΩ 0.001 20k 0 5k 10k FREQUENCY (Hz) MAX4475–MAX4478 SMALL-SIGNAL PULSE RESPONSE 2.5V 0.5V 4µs/div 10kΩ 100pF 100mV PULSE P GND 15k ...

Page 8

... SO/TSSOP 10 — — — 5 — — — — MAX4477/MAX4478/MAX4489 CROSSTALK vs. FREQUENCY -20 -30 1.6V -40 V OUT 50mV/div -50 1.5V -60 -70 -80 -90 10 100 1000 10k 100k FREQUENCY (Hz) Pin Description NAME FUNCTION OUT, OUTA, ...

Page 9

... DD rail. The push-pull output stage maintains excellent DC characteristics, while delivering up to ±5mA of current. The MAX4475–MAX4478 are unity-gain stable, while the MAX4488/MAX4489 have a higher slew rate and are stable for gains ≥ 5V/V. The MAX4475/MAX4488 feature a low-power shutdown mode, which reduces the supply current to 0.01µ ...

Page 10

... Choose the value follows the unity-gain stable MAX4475–MAX4478, the use of a proper C is most important for -1V/V. In the decompensated MAX4488/ V MAX4489 most important for A Z ...

Page 11

... In addition, the MAX4475 has excellent open- loop gain and common-mode rejection, making this an excellent ouput buffer amplifier. The MAX4475–MAX4478/MAX4488/MAX4489 offer a unique combination of low noise, wide bandwidth, and high gain, making them an excellent choice for active filters up to 1MHz. The Typical Operating Circuit shows the dual MAX4477 configured as a 5th order Chebyschev filter with a cutoff frequency of 100kHz ...

Page 12

... Wide-Band, Rail-to-Rail Op Amps TOP VIEW N.C. 1 INA- 2 MAX4475 MAX4488 INA SO/µMAX TOP VIEW OUTA 1 14 OUTD INA IND- INA IND+ MAX4478 INB INC+ INB INC- OUTB 7 8 OUTC SO/TSSOP TOP VIEW OUT 1 MAX4476 ...

Page 13

... MAX4477AUA+ MAX4477AUA+ -40°C to +125°C MAX4477ASA+ -40°C to +125°C -40°C to +125°C MAX4478AUD+ MAX4478AUD/V+ -40°C to +125°C MAX4478ASD+ -40°C to +125°C -40°C to +125°C MAX4488AUT+T MAX4488AUA+ -40°C to +125°C MAX4488ASA+ -40°C to +125°C MAX4488ATT+T -40°C to +125°C -40° ...

Page 14

... Wide-Band, Rail-to-Rail Op Amps For the latest package outline information and land patterns 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 ...

Page 15

... SOT23, Low-Noise, Low-Distortion, For the latest package outline information and land patterns 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 ...

Page 16

... Wide-Band, Rail-to-Rail Op Amps For the latest package outline information and land patterns 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 ...

Page 17

... SOT23, Low-Noise, Low-Distortion, For the latest package outline information and land patterns 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 ...

Page 18

... Wide-Band, Rail-to-Rail Op Amps For the latest package outline information and land patterns 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 ...

Page 19

... SOT23, Low-Noise, Low-Distortion, For the latest package outline information and land patterns 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 ...

Page 20

... Wide-Band, Rail-to-Rail Op Amps For the latest package outline information and land patterns 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 ...

Page 21

... Added /V designation to the MAX4475 product and soldering temperature 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. ...

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