MAX4232AKA Datasheet, PDF (1/28 Pages) Maxim Integrated Products – High Output-Drive, 10MHz, 10V/μs, Rail-to-Rail I/O Op Amps with Shutdown in SC70

MAX4230–MAX4234
High Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
General Description
The MAX4230–MAX4234 single/dual/quad, high-output-
drive CMOS op amps feature 200mA of peak output
current, rail-to-rail input, and output capability from a
single 2.7V to 5.5V supply. These amplifiers exhibit a
high slew rate of 10V/µs and a gain-bandwidth product
(GBWP) of 10MHz. The MAX4230–MAX4234 can drive
typical headset levels (32Ω), as well as bias an RF
power amplifier (PA) in wireless handset applications.
The MAX4230 comes in a tiny 5-pin SC70 package and
the MAX4231, single with shutdown, is offered in a
6-pin SC70 package and in 1.5mm x 1.0mm UCSP and
thin µDFN packages. The dual op-amp MAX4233 is
offered in the space-saving 10-bump chip-scale pack-
age (UCSP™), providing the smallest footprint area for
a dual op amp with shutdown.
These op amps are designed to be part of the PA con-
trol circuitry, biasing RF PAs in wireless headsets. The
MAX4231/MAX4233 offer a SHDN feature that drives
the output low. This ensures that the RF PA is fully dis-
abled when needed, preventing unconverted signals to
the RF antenna.
The MAX4230 family offers low offsets, wide bandwidth,
and high-output drive in a tiny 2.1mm x 2.0mm space-
saving SC70 package. These parts are offered over the
automotive temperature range (-40°C to +125°C).
Applications
RF PA Biasing Controls in Handset Applications
Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32Ω)
Audio Hands-Free Car Phones (Kits)
Laptop/Notebook Computers/TFT Panels
Sound Ports/Cards
Set-Top Boxes
Digital-to-Analog Converter Buffers
Transformer/Line Drivers
Motor Drivers
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
o 200mA Output Drive Capability
o Rail-to-Rail Input and Output
o 1.1mA Supply Current per Amplifier
o 2.7V to 5.5V Single-Supply Operation
o 10MHz Gain-Bandwidth Product
o High Slew Rate: 10V/µs
o 100dB Voltage Gain (R_L = 100kΩ)
o 85dB Power-Supply Rejection Ratio
o No Phase Reversal for Overdriven Inputs
o Unity-Gain Stable for Capacitive Loads to 780pF
o Low-Power Shutdown Mode Reduces Supply
Current to < 1µA
o Available in 5-Pin SC70 Package (MAX4230)
and 6-Bump, UCSP and 6-Pin Thin µDFN
Packages (MAX4231)
o Available in 10-Bump UCSP Package (MAX4233)
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4230AXK+T -40°C to +125°C 5 SC70
ACS
MAX4230AXK/V+T -40°C to +125°C 5 SC70
+AUU
MAX4230AUK+T -40°C to +125°C 5 SOT23
ABZZ
MAX4231AXT+T -40°C to +125°C 6 SC70
ABA
MAX4231AUT+T -40°C to +125°C 6 SOT23
ABNF
MAX4231ART+T -40°C to +125°C 6 UCSP
AAM
MAX4231AYT+T -40°C to +125°C 6 Thin µDFN +AH
+Denotes a lead-free(Pb)/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Typical Operating Circuit
ANTENNA
DAC
R
2.7V TO 5.5V
MAX4231
SHDN
C
RF
PA
IOUT = 30mA
RISO
CLOAD
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-2164; Rev 16; 6/12