GENERAL DEscriptION

The SGM8531 (single), SGM8532 (dual) and SGM8534 (quad) are low cost, voltage feedback amplifiers. These devices can operate from 2.1V to 5.5V single supply, while consuming only 18μA current per amplifier. They provide rail-to-rail input with a wide input common mode voltage range and rail-to-rail output voltage swing. This feature makes SGM8531/2/4 appropriate for buffering ASIC.

The SGM8531/2/4 offer a gain-bandwidth product of 500kHz and an ultra-low input bias current of 0.5pA. They are well suited for piezoelectric sensors, integrators and photodiode amplifiers.

The SGM8531/2/4 are designed into a wide range of applications, such as battery-powered instrumentation, safety monitoring, portable systems, and transducer interface circuits in low power systems.

The SGM8531 is available in Green SOT-23-5 and SOIC-8 packages. The SGM8532 is available in Green SOIC-8 and MSOP-8 packages. The SGM8534 is available in Green SOIC-14 and TSSOP-14 packages. They are specified over the extended -40℃ to +125℃ temperature range.

FEATURES

• Low Cost

• Input Offset Voltage: 3.5mV (MAX)

• Ultra-Low Input Bias Current: 0.5pA

• Unity-Gain Stable

• Gain-Bandwidth Product: 500kHz

• Rail-to-Rail Input and Output

• Supply Voltage Range: 2.1V to 5.5V

• Input Voltage Range: -0.1V to 5.6V with VS = 5.5V

• Low Supply Current: 18μA/Amplifier

• -40℃ to +125℃ Operating Temperature Range

• Available in Green SOIC-8 and MSOP-8 Packages

APPLICATIONS

ASIC Input or Output Amplifiers

Piezoelectric Transducer Amplifiers

Battery-Powered Equipment

Portable Equipment

Sensor Interfaces

Medical Instrumentation

Mobile Communications

Audio Outputs

Smoke Detectors

Mobile Telephones

Notebook PCs

PCMCIA Cards