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AD8594:  CMOS Single Supply RRIO Quad Op Amp with ±250 mA Output Current and Shutdown Mode

Product Details


Newer Alternatives:
  •  ADA4691-4 with lower power and noise available in a smaller package

The AD8591, AD8592, and AD8594 are single, dual, and quad rail-to-rail, input and output single-supply amplifiers featuring 250 mA output drive current and a power saving shutdown mode. The AD8592 includes an independent shutdown function for each amplifier. When both amplifiers are in shutdown mode, the total supply current is reduced to less than 1 μA. The AD8591 and AD8594 include a single master shutdown function that reduces the total supply current to less than 1 μA. All amplifier outputs are in a high impedance state when in shutdown mode.

These amplifiers have very low input bias currents, making them suitable for integrators and diode amplification. Outputs are stable with virtually any capacitive load. Supply current is less than 750 μA per amplifier in active mode.

Applications for these amplifiers include audio amplification for portable computers, portable phone headsets, sound ports, sound cards, and set-top boxes. The AD859x family is capable of driving heavy capacitive loads, such as LCD panel reference levels.

The ability to swing rail to rail at both the input and output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems.

The AD8591, AD8592, and AD8594 are specified over the industrial temperature range (−40°C to +85°C). The AD8591, single, is available in the tiny 6-lead SOT-23 package. The AD8592, dual, is available in the 10-lead surface-mount MSOP package. The AD8594, quad, is available in 16-lead narrow SOIC and 16-lead TSSOP packages.

FEATURES and BENEFITS

  • Single-supply operation: 2.5 V to 6 V
  • High output current: ±250 mA
  • Extremely low shutdown supply current: 100 nA
  • Low supply current: 750 μA/Amp
  • Wide bandwidth: 3 MHz
  • Slew rate: 5 V/μs
  • No phase reversal
  • Very low input bias current
  • High impedance outputs when in shutdown mode
  • Unity-gain stable

AD8594 Pin Configuration

Documentation

Title Content Type File Type
AD8591/AD8592/AD8594: CMOS Single Supply Rail-to-Rail Input/Output Operational Amplifiers with Shutdown Data Sheet (Rev B, 01/2009) (pdf, 227 kB) Data Sheets PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
AN-358: Noise and Operational Amplifier Circuits  (pdf, 593 kB) Application Notes PDF
Amplifier pricing where you want it,  (pdf, 1037 kB)
... performance where you need it.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8591/AD8592/AD8594 SPICE Macro-Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.


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