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 per amplifier. Very low input bias current of 10pA enables 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 the Green SOT-23-5 and SC70-5 packages. The SGM358 comes in the Green SOIC-8, MSOP-8 and DIP-8 packages. The SGM324 is offered in the Green SOIC-14 and TSSOP-14 packages.
• Low Cost
• Rail-to-Rail Input and Output
0.8mV Typical VOS
• 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/Amplifier
• Small Packaging
SGM321 Available in SOT-23-5 and SC70-5
SGM358 Available in SOIC-8, MSOP-8 and DIP-8
SGM324 Available in SOIC-14 and TSSOP-14
ASIC Input or Output Amplifier
Sensor Interface
Piezoelectric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
Smoke Detectors
Notebook PC
PCMCIA Cards
Battery-Powered Equipment
DSP Interface
| Part Number | Status | Package | Pins | Pb-Free | Temp Range | |
| SGM321YC5/TR | Production | SC70-5 | 5 | Y | -40℃ to +85℃ | Samples |
| SGM321YN5/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +85℃ | Samples |
| SGM321BYN5/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +85℃ | Samples |
