MAX4075

Micropower, SOT23, Rail-to-Rail, Fixed-Gain GainAmp/Open-Loop Op Amps

Fixed-Gain Amplifiers Increase Accuracy and Save Space


Please check latest availability status for a specific part variant.

Description

The MAX4074–MAX4078 GainAmp™ op amp family combines low-cost rail-to-rail op amps with precision internal gain-setting resistors. Factory-trimmed on-chip resistors decrease design size, cost, and layout, and provide 0.1% gain accuracy. Fixed inverting gains from -0.25V/V to -100V/V or noninverting gains from +1.25V/V to +101V/V are available. These devices operate from a single +2.5V to +5.5V supply and consume just 34µA. GainAmp amplifiers are optimally compensated for each gain version, achieving gain bandwidth (GBW) products up to 4MHz (AV = +25V/V to +101V/V). High-voltage fault protection withstands ±17V at either input without damage or excessive current draw (MAX4074/MAX4075 only).

Two versions are available in this amplifier family. The MAX4076/MAX4077/MAX4078 are single/dual/quad open-loop, unity-gain-stable op amps, and the MAX4074/MAX4075 are single/dual fixed-gain op amps. The input common-mode voltage range of the open-loop amplifiers extends from 150mV below the negative supply to within 1.2V of the positive supply. The outputs can swing rail-to-rail and drive a 1kΩ load while maintaining excellent DC accuracy (MAX4074/MAX4075 only). The amplifiers are stable for capacitive loads up to 100pF.

For space-critical operations, the MAX4074/MAX4076 are available in space-saving SOT23-5 packages.
MAX4074, MAX4075, MAX4076, MAX4077, MAX4078: Typical Operating Circuit MAX4074, MAX4075, MAX4076, MAX4077, MAX4078: Typical Operating Circuit Enlarge+

Key Features

  • Internal Gain-Setting Resistors in SOT23 Packages (MAX4074/MAX4076)
  • 0.1% Gain Accuracy (RF/RG) (MAX4074/MAX4075)
  • 54 Standard Gains Available (MAX4074/MAX4075)
  • Open-Loop, Unity-Gain-Stable Op Amps (MAX4076/MAX4077/MAX4078)
  • Rail-to-Rail Outputs Drive 1kΩ Load
  • +2.5V to +5.5V Single Supply
  • 34µA Supply Current
  • Up to 4MHz GBW Product
  • Fault-Protected Inputs Withstand ±17V
  • 200pA (max) Input Bias Current
  • Stable with Capacitive Loads up to 100pF with No Isolation Resistor

Applications/Uses

  • Cellular Handsets
  • Cordless Phones
  • Digital Cameras (DIGICAMs)
  • Glucose Meters
  • GPS Solutions
  • Infrared Receivers for Remote Controls
  • Instruments, Terminals, and Bar-Code Readers
  • IP Camera
  • Keyless Entry
  • Low-Side Current-Sense Amplifiers
  • MP3 and Portable Media Players
  • Photodiode Preamps
  • Portable Battery-Powered Equipment
  • Smart-Card Readers

See parametric specs for Operational Amplifiers (175)


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
MAX4076 1Output Only2.55.54535009595Yes0.20.230.09110
SOT23/5
$1.52 @1k
MAX4077 2
SOIC (N)/8
UMAX/8
$1.75 @1k
MAX4078 4
SOIC (N)/14
TSSOP/14
$2.41 @1k

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.
Request Reliability Report for: MAX4075 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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.

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