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MAX4460, MAX4461, MAX4462

SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers

Precision Instrumentation Amplifier Fits in SOT23 Package

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Status Explanations for product status codes

Part Number Status
MAX4460 Active: In Production. See Ordering Information for details.
MAX4461 Active: In Production.
MAX4462 Active: In Production.

Description

The MAX4460/MAX4461/MAX4462 are instrumentation amplifiers with precision specifications, low-power consumption, and excellent gain-bandwidth product. Proprietary design techniques allow ground-sensing capability combined with ultra-low input current and increased common-mode rejection performance. These rail-to-rail output instrumentation amplifiers are offered in fixed or adjustable gains and the option for either a shutdown mode or a pin to set the output voltage relative to an external reference (see Ordering Information and Selector Guide in the full data sheet).

The MAX4460 has an adjustable gain and uses ground as its reference voltage. The MAX4461 is offered in fixed gains of 1, 10, and 100, uses ground as its reference voltage, and has a logic-controlled shutdown input. The MAX4462 is offered in fixed gains of 1, 10, and 100 and has a reference input pin (REF). REF sets the output voltage for zero differential input to allow bipolar signals in single-supply applications.

The MAX4460/MAX4461/MAX4462 have high-impedance inputs optimized for small-signal differential voltages. The MAX4461/MAX4462 are factory trimmed to gains of 1, 10, or 100 (suffixed U, T, and H) with ±0.1% accuracy. The typical offset of the MAX4460/MAX4461/MAX4462 is 100µV. All devices have a gain-bandwidth product of 2.5MHz.

These amplifiers operate with a single-supply voltage from 2.85V to 5.25V and with a quiescent current of only 700µA (less than 1µA in shutdown for the MAX4461). The MAX4462 can also be operated with dual supplies. Smaller than most competitors, the MAX4460/MAX4461/MAX4462 are available in space-saving 6-pin SOT23 and TDFN packages.
 

Data Sheet

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Key Features

  • Tiny 6-Pin SOT23 and TDFN Package
  • Input Negative Rail Sensing
  • 1pA (typ) Input Bias Current
  • 100µV Input Offset Voltage
  • Rail-to-Rail Output
  • 2.85V to 5.25V Single Supply
  • 700µA Supply Current
  • ±0.1% Gain Error
  • 2.5MHz Gain-Bandwidth Product
  • 18nV/ Input-Referred Noise
 

Applications/Uses

  • Battery-Powered Medical Equipment
  • Differential Voltage Amplification
  • Industrial Process Controls
  • Low-Noise Microphone Preamplifier
  • Precision Low-Side Current Sense
  • Strain-Gauge Amplifiers
  • Transducer Interface
   

Key Specifications:

Instrumentation/Difference Amplifiers
Part Number Architecture Amps. VCMVR Rail to Rail AV
(V/V)
VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(mA)
ICC per Amp.
(mA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
VCMVR
(V)
en
(nV/√Hz)
Noise Spec'd @ Low Pwr. Shutdn Oper. Temp.
(°C)
Package/Pins Smallest Available Pckg.
(mm2)
Budgetary Price
to Neg. Rail min max typ max max typ typ max typ typ max w/pins See Notes
MAX4460  Indirect Current-Feedback 1 Yes Output Only Adj. 2.85 5.25 0.7 1.1 500 120 100 0.1 2.5 0.5 VSS-0.1 to VDD-1.7 18 10kHz No -40 to +85
SOIC(N)/8
SOT/6
TDFN-EP/6
9 $1.17 @1k
MAX4461 
1
10
100
Yes
SOIC(N)/8
SOT/6
TDFN-EP/6
$1.17 @1k
MAX4462 
1
10
100
No
SOIC(N)/8
SOT/6
TDFN-EP/6
$1.17 @1k
See All Instrumentation/Difference Amplifiers (15)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX4460, MAX4461, MAX4462: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX4460
Topmark Coding MAX4461
Topmark Coding MAX4462
New Product Press Release 2002-05-09 ]

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Document Ref.: 19-2279 Rev 4; 2006-03-28
This page last modified: 2009-05-18




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