MAX4257_12 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps

EVALUATION KIT AVAILABLE
MAX4249–MAX4257
UCSP, Single-Supply, Low-Noise,
Low-Distortion, Rail-to-Rail Op Amps
General Description
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.
Applications
Wireless Communications Devices
PA Control
Portable/Battery-Powered Equipment
Medical Instrumentation
ADC Buffers
Digital Scales/Strain Gauges
Features
o Available in Space-Saving UCSP, SOT23, and
µMAX^® Packages
o Low Distortion: 0.0002% THD (1k" 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
Ground
o Outputs Swing Within 8mV of Rails with a 10k"
Load
o 3MHz GBW Product, Unity-Gain Stable
(MAX4250–MAX4254)
22MHz GBW Product, Stable with A_V # 10V/V
(MAX4249/MAX4255/MAX4256/MAX4257)
o Excellent DC Characteristics
V_OS = 70µV
I_BIAS = 1pA
Large-Signal Voltage Gain = 116dB
o Low-Power Shutdown Mode
Reduces Supply Current to 0.5µA
Places Outputs in a High-Impedance State
o 400pF Capacitive-Load Handling Capability
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX4249ESD+
MAX4249EUB+
-40°C to +85°C 14 SO
-40°C to +85°C 10 µMAX
MAX4250EUK+T -40°C to +85°C 5 SOT23
MAX4250AAUK+T -40°C to +125°C 5 SOT23
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
TOP
MARK
—
—
ACCI
AEYJ
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
Pin/Bump Configurations
TOP VIEW
(BUMPS ON BOTTOM)
1
2
A OUTA
VDD
3
OUTB
B _{INA- MAX4252 INB-}
C
INA+
VSS
INB+
A1
OUTB
B1
VDD
C1
OUTA
A2
A3
INB-
INB+
MAX4253
C2
C3
INA-
INA+
A4
SHDNB
B4
VSS
C4
SHDNA
UCSP
Pin/Bump Configurations continued at end of data sheet.
UCSP
UCSP is a trademark and 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 Integrated’s website at www.maximintegrated.com.
19-1295; Rev 9; 12/12