MAX4470

Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps

Sub-µA (750nA) Op Amp Extends Battery Life


Please check latest availability status for a specific part variant.

Description

The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems.

The rail-to-rail output stage of the MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100kΩ load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages.
MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations MAX4464, MAX4470, MAX4471, MAX4472, MAX4474: Pin Configurations Enlarge+

Key Features

  • Ultra-Low 750nA Supply Current Per Amplifier
  • Ultra-Low +1.8V Supply Voltage Operation
  • Ground-Sensing Input Common-Mode Range
  • Outputs Swing Rail-to-Rail
  • Outputs Source and Sink 11mA of Load Current
  • No Phase Reversal for Overdriven Inputs
  • High 120dB Open-Loop Voltage Gain
  • Low 500µV Input Offset Voltage
  • 9kHz Gain-Bandwidth Product (MAX4470/MAX4471/MAX4472)
  • 40kHz Gain-Bandwidth Product (MAX4464/MAX4474)
  • 250pF (min) Capacitive Load Capability
  • Available in Tiny, 6-Bump WLP, 5-Pin SC70, and 8-Pin SOT23 Packages

Applications/Uses

  • Badges
  • Battery-Powered Systems
  • Cellular Handsets
  • Digital Cameras (DIGICAMs)
  • Electrometer Amplifiers
  • Glucose Meters
  • GPS Solutions
  • IP Camera
  • Micropower
  • MP3 and Portable Media Players
  • Pagers and Cellphones
  • pH Meters
  • Portable Instrumentation
  • Remote Sensor Active
  • Solar-Powered Systems
  • Thermostats

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)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
Package/PinsBudgetary
Price
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX4464 1Output Only1.85.50.75700095901.50.040.02120
SC70/5
SOT23/5
$0.79 @1k
MAX4470 10.0090.002
SC70/5
SOIC (N)/8
SOT23/5
WLP/6
$0.99 @1k
MAX4471 20.0090.002
SOIC (N)/8
SOT23/8
UMAX/8
$0.95 @1k
MAX4472 40.0090.002
SOIC (N)/14
TSSOP/14
$1.66 @1k
MAX4474 20.040.02
SOIC (N)/8
SOT23/8
UMAX/8
$1.28 @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.

MAX4470EVKIT: Evaluation Kit for the MAX4470
Product Reliability Reports: MAX4470.pdf 
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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