MAX4256 Maxim, MAX4256 Datasheet

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MAX4256

Manufacturer Part Number
MAX4256
Description
The MAX4249–MAX4257 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 MAX4249–MAX4257 low-noise, low-distortion oper-
ational amplifiers offer rail-to-rail outputs and single-
supply operation down to 2.4V. They draw 400µA of
quiescent supply current per amplifier while featuring
ultra-low distortion (0.0002% THD), as well as low input
voltage-noise density (7.9nV/√Hz) and low input
current-noise density (0.5fA/√Hz). These features make
the devices an ideal choice for portable/battery-powered
applications that require low distortion and/or low noise.
For additional power conservation, the MAX4249/
MAX4251/MAX4253/MAX4256 offer a low-power shut-
down mode that reduces supply current to 0.5µA and
puts the amplifiers’ outputs into a high-impedance
state. The MAX4249-MAX4257’s outputs swing rail-to-
rail and their input common-mode voltage range
includes ground. The MAX4250–MAX4254 are unity-
gain stable with a gain-bandwidth product of 3MHz.
The MAX4249/MAX4255/MAX4256/MAX4257 are inter-
nally compensated for gains of 10V/V or greater with a
gain-bandwidth product of 22MHz. The single MAX4250/
MAX4255 are available in space-saving 5-pin SOT23
packages. The MAX4252 is available in an 8-bump chip-
scale package (UCSP™) and the MAX4253 is available in
a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin
SOT23 package and is specified for operation over the
automotive (-40°C to +125°C) temperature range.
19-1295; Rev 8; 10/11
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.
UCSP is a trademark and µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin/Bump Configurations continued at end of data sheet.
Wireless Communications Devices
PA Control
Portable/Battery-Powered Equipment
Medical Instrumentation
ADC Buffers
Digital Scales/Strain Gauges
TOP VIEW
(BUMPS ON BOTTOM)
________________________________________________________________ Maxim Integrated Products
General Description
Low-Distortion, Rail-to-Rail Op Amps
C
A
B
Applications
OUTA
INA-
INA+
1
UCSP, Single-Supply, Low-Noise,
MAX4252
UCSP
V
V
DD
SS
2
OUTB
INB-
INB+
3
o Available in Space-Saving UCSP, SOT23, and
o Low Distortion: 0.0002% THD (1kΩ load)
o 400µA Quiescent Supply Current per Amplifier
o Single-Supply Operation from 2.4V to 5.5V
o Input Common-Mode Voltage Range Includes
o Outputs Swing Within 8mV of Rails with a 10kΩ
o 3MHz GBW Product, Unity-Gain Stable
o Excellent DC Characteristics
o Low-Power Shutdown Mode
o 400pF Capacitive-Load Handling Capability
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
MAX4249ESD+
MAX4249EUB+
MAX4250EUK+T
M AX 4250AAU K+ T
µMAX
Ground
Load
(MAX4250–MAX4254)
22MHz GBW Product, Stable with A
(MAX4249/MAX4255/MAX4256/MAX4257)
OUTB
OUTA
V
Reduces Supply Current to 0.5µA
Places Outputs in a High-Impedance State
C1
A1
B1
DD
V
I
Large-Signal Voltage Gain = 116dB
BIAS
PART
OS
®
INB-
= 70µV
INA-
Packages
A2
C2
= 1pA
MAX4253
UCSP
Pin/Bump Configurations
INA+
INB+
C3
A3
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
- 40°C to + 125°C
Ordering Information
SHDNA
SHDNB
V
C4
A4
B4
SS
PIN-
PACKAGE
14 SO
10 µMAX
5 SOT23
5 SOT23
V
Features
≥ 10V/V
MARK
ACCI
AEYJ
TOP
1

Related parts for MAX4256

MAX4256 Summary of contents

Page 1

... For additional power conservation, the MAX4249/ MAX4251/MAX4253/MAX4256 offer a low-power shut- down mode that reduces supply current to 0.5µA and puts the amplifiers’ outputs into a high-impedance state. The MAX4249-MAX4257’s outputs swing rail-to- rail and their input common-mode voltage range includes ground. The MAX4250– ...

Page 2

... UCSP (derate 6.1mW/°C above +70°C) ......484mW 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 (Note (Note 2) IH SHDN = (Note MAX4250–MAX4254 GBW MAX4249/MAX4255/MAX4256/MAX4257 MAX4250–MAX4254 SR MAX4249/MAX4255/MAX4256/MAX4257 0.1Hz to 10Hz n P 10Hz 1kHz 30kHz 1kHz unless otherwise noted MIN MAX MIN TYP MAX ...

Page 4

... Phase Margin Settling Time Delay Time to Shutdown Delay Time to Enable Power-Up Delay Time Note 2: SHDN is available on the MAX4249/MAX4251/MAX4253/MAX4256 only. Note 3: All device specifications are 100% tested at T Note 4: Guaranteed by the PSRR test. Note 5: Offset voltage prior to reflow on the UCSP. Note 6: Guaranteed by design. ...

Page 5

... Low-Distortion, Rail-to-Rail Op Amps ( OUT T = +25°C, unless otherwise noted.) A MAX4251/MAX4256 INPUT OFFSET VOLTAGE DISTRIBUTION 40 400 UNITS +25° (µV) OS OUTPUT VOLTAGE vs. OUTPUT LOAD CURRENT 0 ±10mV V DIFF 0 ...

Page 6

... TO 4.75mV 100 -40 - TEMPERATURE (°C) SUPPLY CURRENT vs. OUTPUT VOLTAGE 2000 1000 400 100 0.001 0.01 0.1 1 OUTPUT VOLTAGE (V) MAX4249/MAX4255/MAX4256/MAX4257 GAIN AND PHASE vs. FREQUENCY MAX4249-57 TOC17 3V 50kΩ 20pF L 40 GAIN A = 1000 PHASE -10 -20 ...

Page 7

... O -40 f 10kΩ O 100kΩ 11kΩ -60 -80 HD2 -100 HD3 -120 -140 15k 10 5k 10k FREQUENCY (Hz) MAX4249/MAX4255/MAX4256/MAX4257 TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT VOLTAGE SWING 100kΩ 11kΩ 0 20kHz, FILTER BW = 80kHz O 0. 3kHz, FILTER BW = 30kHz O 0.001 ...

Page 8

... DD MAX4250–MAX4254 LARGE-SIGNAL PULSE RESPONSE 1.5V V OUT 200mV/div 0. 10kΩ 100pF PULSE IN 2µs/div MAX4249/MAX4255/MAX4256/MAX4257 SMALL-SIGNAL PULSE RESPONSE 1.6V V OUT 50mV/div 1. 10kΩ 100pF 10mV PULSE 2µ ...

Page 9

... The MAX4250–4254 are unity-gain stable, whereas, the MAX4249/MAX4255/MAX4256/MAX4257 have a higher slew rate and are stable for gains ≥ 10V/V. The MAX4249/MAX4251/MAX4253/MAX4256 feature a low- power shutdown mode, which reduces the supply cur- rent to 0.5µA and disables the outputs. The MAX4250AAUK is specified for operation over the automotive (-40° ...

Page 10

... Total Harmonic Distortion vs. Frequency graph in the Typical Operating Characteristics .) For gains ≥ 10V/V, the decompensated devices MAX4249/MAX4255/MAX4256/MAX4257 deliver the best distortion performance, since they have a higher slew rate and provide a higher amount of loop gain for a given closed-loop gain setting. Capacitive loads below 400pF, do not significantly affect distortion results ...

Page 11

... V expense of reduced phase and gain margin gen- OUT eral guideline, consider using greater than 20kΩ (MAX4250–MAX4254 greater than 5kΩ (MAX4249/MAX4255/MAX4256/ MAX4257 -200mV The MAX4249–MAX4257 combine good driving capa- ...

Page 12

... For the latest application details on UCSP construction, dimensions, tape carrier information, PC board tech- niques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, refer to the Application Note: UCSP—A Wafer-Level Chip-Scale Package on Maxim’s web site at www.maxim-ic.com/ucsp. 4.5 4.0 3.5 3 ...

Page 13

... WID MAX4249 22 MAX4250/A 3 MAX4251 3 MAX4252 3 MAX4253 3 MAX4254 3 MAX4255 22 MAX4256 22 MAX4257 22 ______________________________________________________________________________________ UCSP, Single-Supply, Low-Noise MAX195 7 (16-BIT ADC) 6 AIN MAX4256 SHDN -5V MINIMUM NO. OF STABLE AMPLIFIERS GAIN (V/V) PER PACKAGE ...

Page 14

... MAX4255EUK+T -40°C to +85°C MAX4256ESA+ MAX4256EUA+ -40°C to +85°C -40°C to +85°C MAX4257ESA+ MAX4257EUA+ -40°C to +85°C 14 ______________________________________________________________________________________ Pin/Bump Configurations (continued SHDN IN MAX4251 MAX4256 IN OUT N.C. SS μMAX/SO + OUTA INA OUTB INA ...

Page 15

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 16

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 17

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 18

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 19

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 20

... Low-Distortion, Rail-to-Rail Op Amps For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 21

... 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. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...

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