OBSOLETE PRODUCT — AD8631:  1.8 V, 5 MHz Rail-to-Rail Low Power Operational Amplifiers

The AD8631 brings precision and bandwidth to the SOT-23-5 package at single supply voltages as low as 1.8 V and low supply current. The small package makes it possible to place the AD8631 next to sensors, reducing external noise pickup.

The AD8631 and AD8632 are rail-to-rail input and output bipolar amplifiers with a gain bandwidth of 4 MHz and typical voltage offset of 0.8 mV from a 1.8 V ...More

AD8631:  1.8 V, 5 MHz Rail-to-Rail Low Power Operational Amplifiers

Product Description

The AD8631 brings precision and bandwidth to the SOT-23-5 package at single supply voltages as low as 1.8 V and low supply current. The small package makes it possible to place the AD8631 next to sensors, reducing external noise pickup.

The AD8631 and AD8632 are rail-to-rail input and output bipolar amplifiers with a gain bandwidth of 4 MHz and typical voltage offset of 0.8 mV from a 1.8 V supply. The low supply current and the low supply voltage makes these parts ideal for battery-powered applications. The 3 V/µs slew rate makes the AD8631/AD8632 a good match for driving ASIC inputs, such as voice codecs.

The AD8631/AD8632 is specified over the extended industrial (–40.C to +125.C) temperature range. The AD8631 single is available in 5-lead SOT-23 surface-mount packages. The dual AD8632 is available in 8-lead SOIC and µSOIC packages.

REPLACEMENT PARTS

Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.

Features

  • Single Supply Operation: 1.8 V to 6 V
  • Space-Saving SOT-23, µSOIC Packaging
  • Wide Bandwidth: 5 MHz @ 5 V, 4 MHz @ 1.8 V
  • Low Offset Voltage: 4 mV Max, 0.8 mV typ
  • Rail-to-Rail Input and Output Swing
  • 2 V/µs Slew Rate @ 1.8 V
  • Only 225 µA Supply Current @ 1.8 V

Diagrams

AD8631 Diagram
Pin Configuration Diagram for AD8631

Specifications

-3dB Bandwidth 5MHz
Slew Rate 3V/µs
Vos 800µV
Ib 250nA
# OpAmps per Pkg 1
Input Noise (nV/rtHz) 23nV/rtHz
Vcc-Vee 1.8V to 6V
Isy per Amplifier 450µA
Packages SOT
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