SD3121

Category
Bipolar ground-isolated operational amplifier
Keywords
Circuit board, SD3121
Description
SD3121 is a ground-isolated amplifier IC that effectively eliminates noise caused by ground resistance. Its small required external capacitors support compact designs without reducing reliability. It is widely used in in-vehicle audio systems.

Key parameters

Number of Channels
2
Turn off function
N
Minimum Operating Voltage (V)
4
Maximum Operating Voltage (V)
18
Gain (dB)
82
Quiescent current (mA)
9.0
Distortion (dB)
-0.04
Mode-control ratio
57
Conversion Rate (V/µs)
2.0
Output noise (mVrms)
3.5
Package
SOP8

Overview

SD3121 is a ground-isolated amplifier circuit. Its effective circuit design provides excellent common-mode rejection. The circuit has low input offset voltage and low noise, while also providing low power consumption. SD3121 is widely used in automotive electronic systems. The SD3121 series is available in DIP8, SOP8, and SIP8 packages.

Applications

  • Audio system

TECHNICAL DOCUMENTS

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