MAX4250 Maxim, MAX4250 Datasheet

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MAX4250

Manufacturer Part Number
MAX4250
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 MAX4250

MAX4250 Summary of contents

Page 1

... 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. ...

Page 2

... SO (derate 8.33mW/°C above +70°C)..............667mW SS - 0.3V) Operating Temperature Range ...........................-40°C to +85°C SS MAX4250AAUK .............................................-40°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C /2, SHDN = /2, R ...

Page 3

... V (Note 2) 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 ...

Page 4

... MAX4249/MAX4255 1kHz MAX4256/MAX4257 A = 1V/ OUT P 20kHz R = 1kΩ to GND (Note sustained oscillations MAX4250–MAX4254 1V MAX4249/MAX4255/MAX4256/MAX4257 10V/V V MAX4250–MAX4254 1V/V V ΦM MAX4249/MAX4255/MAX4256/MAX4257 10V/V V MAX4250–MAX4254 To 0.01%, V OUT MAX4249/MAX4255 step MAX4256/MAX4257 I MAX4251/MAX4253 = 5% of VDD t normal SH MAX4249/MAX4256 operation V = 2.5V, ...

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°C ...

Page 6

... SUPPLY VOLTAGE 180 V OUT 160 R REFERENCED TO GND L 140 120 R = 10kΩ L 100 100kΩ 1.8 2.3 2.8 3.3 3.8 4.3 5 SUPPLY VOLTAGE (V) MAX4250–MAX4254 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY 180 3V 144 -10 -20 108 -30 72 -40 36 -50 0 -60 PSRR+ -36 -70 -72 -80 PSRR- -108 -90 -144 -100 ...

Page 7

... Low-Distortion, Rail-to-Rail Op Amps ( OUT T = +25°C, unless otherwise noted.) A OUTPUT IMPEDANCE vs. FREQUENCY 1000 (MAX4249/MAX4255/ V MAX4256/MAX4257) 100 (MAX4250–MAX4254) V 0.1 1k 10k 100k 1M FREQUENCY (Hz) MAX4250–MAX4254 FFT OF DISTORTION AND NOISE 1kΩ OUT P 1kHz - ...

Page 8

... SMALL-SIGNAL PULSE RESPONSE 1.6V V OUT 50mV/div 1. 10kΩ 100pF 10mV PULSE 2µs/div MAX4250–MAX4254 SMALL-SIGNAL PULSE RESPONSE 0.6V V OUT 20mV/div 0. 10kΩ 100pF 100V PULSE IN 2µs/div CHANNEL SEPARATION vs. FREQUENCY 140 ...

Page 9

... 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°C to +125°C) temperature range. Pin/Bump Description ...

Page 10

UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps Many factors can affect the noise and distortion that the device contributes to the input signal. The following guidelines offer valuable information on the impact of design choices on Total Harmonic Distortion (THD). ...

Page 11

... OUT a feed-forward capacitor ( input and the output (Figure 1). This effectively cancels the pole from the inverting input of the amplifier. Choose the value the unity-gain stable MAX4250–MAX4254, the use of a proper -1V/V. In the decompensated MAX4249/ V MAX4255/MAX4256/MAX4257, C for A = 10V/V. Figures 2a and 2b show transient ...

Page 12

... Figure 8. MAX4250–MAX4254 Unity-Gain Bandwidth vs. Capacitive Load For example, if the capacitive load is 1000pF, the corre- sponding isolation resistor is 150Ω. Figure 7 shows that peaking occurs without the isolation resistor. Figure 8 = 10) V shows the unity-gain bandwidth vs ...

Page 13

... Low-Distortion, Rail-to-Rail Op Amps 5V 50kΩ 5kΩ PART 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 ...

Page 14

... UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps TOP VIEW + OUT MAX4250 V 2 MAX4250A SS MAX4255 IN IN- SOT23 + OUTA INA OUTB MAX4249 INA INB- MAX4253 INB+ SS SHDNA 5 6 SHDNB μMAX Ordering Information (continued) PART TEMP RANGE -40° ...

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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