MAX4234

High-Output-Drive, 10MHz, 10V/µs, Rail-to-Rail I/O Op Amps with Shutdown in SC70


Please check latest availability status for a specific part variant.

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 single 2.7V to 5.5V supply. These amplifiers exhibit 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 offered in the space-saving 10-bump chip-scale package (UCSP), providing the smallest footprint area for a dual op amp with shutdown.

These op amps are designed to be part of the PA control circuitry, biasing RF PAs in wireless headsets. The MAX4231/MAX4233 offer a active-low SHDN feature that drives the output low. This ensures that the RF PA is fully disabled when needed, preventing unconverted signals to the RF antenna.
MAX4230, MAX4231, MAX4232, MAX4233, MAX4234: Typical Operating Circuit MAX4230, MAX4231, MAX4232, MAX4233, MAX4234: Typical Operating Circuit Enlarge+

Key Features

  • Optimized for Headsets and High-Current Outputs
    • 200mA Output Drive Capability
    • 100dB Voltage Gain (RL = 100kΩ)
    • 85dB Power-Supply Rejection Ratio
    • No Phase Reversal for Overdriven Inputs
    • Unity-Gain Stable for Capacitive Loads to 780pF
  • Suitable for High-Bandwidth Applications
    • 10MHz Gain-Bandwidth Product
    • High Slew Rate: 10V/µs
  • Extends the Battery Life of Portable Applications
    • 1.1mA Supply Current per Amplifier
  • Low-Power Shutdown Mode Reduces Supply Current to < 1µA
  • Small Package Options
    • Tiny, 2.1mm x 2.0mm Space-Saving SC70 Package
  • AEC-Q100 Qualified, Refer to Ordering Information for the List of /V Parts

Applications/Uses

  • Audio Hands-Free Car Phones (Kits)
  • Digital-to-Analog Converter Buffers
  • Motor Drivers
  • Portable Headphone Speaker Drivers (32Ω)
  • Portable/Battery-Powered Audio Applications
  • RF PA Biasing Controls in Handset Applications
  • Tablet/Notebook Computers
  • Transformer/Line Drivers
Part NumberAmps.Rail to RailVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(µA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Low Input Bias CMOS InputsInput IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
Package/PinsBudgetary
Price
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX4230 1Input/Output2.75.5110060007085Yes0.05101012
SC70/5
SOT23/5
$0.59 @1k
MAX4231 1
SC70/6
SOT23/6
UCSP (R)/6
ULTRA THIN LGA/6
$0.59 @1k
MAX4232 2
SOT23/8
UMAX/8
$0.62 @1k
MAX4233 2
UCSP (B)/12
UMAX/10
$0.72 @1k
MAX4234 4
SOIC (N)/14
TSSOP/14
$1.17 @1k
See All Operational Amplifiers (172)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX4233EVKIT: Evaluation Kit for the MAX4338 and MAX4233
MAX4338EVKIT: Evaluation Kit for the MAX4338 and MAX4233
MAX4336EVKIT: Evaluation Kit for the MAX4231 and MAX4336
MAX4231EVKIT: Evaluation Kit for the MAX4231

Technical Documents

Tutorial 4699 Overview of Sensor Signal Paths
Reference Schematic 4320 Reference Design for a Class D, 2.1-Channel, Audio Amplifier for an MP3 Docking Station

Quality and Environmental Data

Product Reliability Reports: MAX4234.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX4234ASD+
  • MAX4234ASD+T
  • MAX4234ASD-T
  • MAX4234AUD+
  • MAX4234AUD+T
  • MAX4234AUD-T
  • MAX4234AUD/V+
  • MAX4234AUD/V+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
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    Temperature:

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