The SGM321 (single), SGM358 (dual) and SGM324 (quad) are low cost, rail-to-rail input and output voltage feedback amplifiers. They have a wide input common mode voltage range and output voltage swing, and take the minimum operating supply voltage down to 2.1V. The maximum recommended supply voltage is 5.5V. All are specified over the extended -40℃ to +85℃ temperature range.
The SGM321/358/324 provide 1MHz bandwidth at a low current consumption of 60μA/amplifier. Very low input bias currents of 10pA enable SGM321/358/324 to be used for integrators, photodiode amplifiers and piezoelectric sensors. Rail-to-rail input and output are useful to designers for buffering ASIC in single-supply systems.
Applications for this series of amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and interfacing for transducers in very low power systems.
The SGM321 is available in Green SOT-23-5 and SC70-5 packages. The SGM358 is available in Green SOIC-8, MSOP-8 and DIP-8 packages. The SGM324 is available in Green SOIC-14 and TSSOP-14 packages.
Low Cost
Rail-to-Rail Input and Output
Input Offset Voltage: 5mV (MAX)
Unity Gain Stable
Gain-Bandwidth Product: 1MHz
Very Low Input Bias Current: 10pA
Supply Voltage Range: 2.1V to 5.5V
Input Voltage Range: -0.1V to 5.6V with VS = 5.5V
Low Supply Current: 60μA
Available in SOT-23-5 and SC70-5 Packages
ASIC Input or Output Amplifier
Sensor Interface
Piezoelectric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable System
Smoke Detector
Notebook PC
PCMCIA Card
Battery-Powered Equipment
DSP Interface
| Part Number | Status | Package | Pins | Pb-Free | Temp Range |
| SGM321YC5/TR | Production | SC70-5 | 5 | Y | -40℃ to +85℃ |
| SGM321YN5/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +85℃ |
| SGM321BYN5/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +85℃ |
