MAX4477 Maxim, MAX4477 Datasheet

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MAX4477

Manufacturer Part Number
MAX4477
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

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MAX4477 Summary of contents

Page 1

... EP = Exposed pad (connect denotes an automotive qualified part Tape and reel. Ordering Information continued at end of data sheet. Pin Configurations and Typical Operating Circuit appear at end of data sheet. PART MAX4475 MAX4476 MAX4477 MAX4478 100k MAX4488 MAX4489 Features ≥ +5V 70µV = 1pA ...

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

SOT23, Low-Noise, Low-Distortion, DC ELECTRICAL CHARACTERISTICS (continued + OUT Typical values are +25°C.) (Notes PARAMETER SYMBOL Output Voltage Swing Output Short-Circuit Current ...

Page 4

SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps AC ELECTRICAL CHARACTERISTICS (continued + OUT PARAMETER SYMBOL Total Harmonic Distortion Plus THD + N Noise (Note 6) Capacitive-Load Stability Gain ...

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

SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps (V = + OUT measurements +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. SUPPLY VOLTAGE 3.0 PER AMPLIFIER 2.5 2.0 1.5 ...

Page 7

SOT23, Low-Noise, Low-Distortion + OUT measurements +25°C, unless otherwise noted.) A INPUT VOLTAGE-NOISE DENSITY vs. FREQUENCY 100 1k 10k ...

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

SOT23, Low-Noise, Low-Distortion, Detailed Description The MAX4475–MAX4478/MAX4488/MAX4489 single- supply operational amplifiers feature ultra-low noise and distortion. Their low distortion and low noise make them ideal for use as preamplifiers in wide dynamic- range applications, such as 16-bit analog-to-digital converters (see ...

Page 10

SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps The amplifier’s input-referred noise-voltage density is dominated by flicker noise at lower frequencies, and by thermal noise at higher frequencies. Because the ther- mal noise contribution is affected by the parallel combi- nation ...

Page 11

... The Typical Operating Circuit shows the dual MAX4477 configured as a 5th order Chebyschev filter with a cutoff frequency of 100kHz. The circuit is implemented in the Sallen-Key topology, making this a DC-accurate filter ...

Page 12

... TOP VIEW OUT MAX4475 SHDN MAX4488 SS IN IN- SOT23-6 TOP VIEW N.C. 4 IN- + *EP = EXPOSED PADDLE. Pin Configurations OUTB 7 MAX4477 MAX4489 6 INB- 5 INB+ SO/µMAX MAX4475 MAX4488 * TDFN *EP = EXPOSED PADDLE MAX4476 * TDFN ...

Page 13

... Ordering Information (continued) PART TEMP RANGE -40°C to +125°C MAX4476AUT+T MAX4476ATT+T -40°C to +125°C -40°C to +125°C 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° ...

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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