MAX44267

+15V Single-Supply, Dual Op Amp with ±10V Output Range

Beyond-the-Rails™ Amplifier Provides Bipolar Output from a Single Positive Supply


Please check latest availability status for a specific part variant.

Description

The MAX44267 precision, low-noise, low-drift dual operational amplifier offers true-zero output that allows the output to cross zero maximizing the dynamic range of an ADC and increasing resolution. In addition, the input common-mode range extends from +13.5V down to -12V. The MAX44267 integrates charge-pump circuitry that generates the negative voltage rail in conjunction with external capacitors. This allows the amplifier to operate from a single +4.5V to +15V power supply, but it is as effective as a normal dual-rail ±4.5V to ±15V amplifier. The architecture eliminates the need for a negative power-supply rail, saving system cost and size.

The MAX44267 is unity-gain stable with a gain-bandwidth product of 5MHz. The device features low offset voltage of 50µV (max), drift of 0.4µV/°C (max), and 200nVP-P noise from 0.1Hz to 10Hz. The low offset and noise specifications and wide input common-mode range make the device ideal for sensor transmitters and interfaces. Varying the external charge pump capacitors enables the charge-pump noise to be minimized.

The MAX44267 is part of a family of signal chain ICs including amplifiers, multiplexers and ADCs. These ICs eliminate the need for a negative supply to the multiplexer, amplifier and ADC, saving space and cost. See the Typical Application Circuit and Table 1 for more information.

The MAX44267 is available in a 14-pin TSSOP package and is specified over the -40°C to +125°C operating temperature range.

MAX44267: Block Diagram MAX44267: Block Diagram Enlarge+

Key Features

  • True Bipolar Output Greater than ±10V from a Single +15V Supply Eliminates Space and Cost of Negative Power Supply
    • True Zero Output from a Single Supply
  • High-Accuracy Sensing Over Temperature
    • Low Input VOS: 50µV (max)
    • Low 0.4µV/°C (max) of Offset Drift
  • 9nV/ Low Input Noise at 1kHz Provides Wide ADC Dynamic Range
  • 5MHz Gain-Bandwidth Product Provides Wide Frequency Input Range
  • Low 2.4mA (max) Quiescent Current Enables Lower Power Dissipation and Cooler Operation
  • Integrated EMI Filter Reduces Sensitivity to Motors and Other High-Frequency Noise Generators
  • 14-Pin TSSOP Package with External Charge-Pump Capacitors Enables Noise Optimization

Applications/Uses

  • Analog Level Shifting/Conditioning
  • Bridge Sensors
  • PLC Analog I/O Modules
  • Pressure Sensors
  • Sensor Interfaces
Part NumberAmps.Rail to RailVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(µA)
VOS
(µV)
CMRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
Package/PinsBudgetary
Price
minmaxtypmaxtypmaxtyptyp<See Notes
MAX44267 2Output Only4.5151200501501.5538
TSSOP/14
$1.81 @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.


MAX44267EVKIT: Evaluation Kit for the MAX44267

Technical Documents

App Note 6262 RTD Measurement System Design Essentials
App Note 6144 How to Linearize Wheatstone-Bridge Circuit for Better Performance

Quality and Environmental Data

Request Reliability Report for: MAX44267 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX44267 Orcad Library
  • CAD Symbols and Footprints

  • MAX44267AUD+
  • MAX44267AUD+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 >

     
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