The SGM8557-1 (single), SGM8557-3 (single with shutdown), SGM8557-2 (dual) and SGM8557-5 (dual with shutdown) are low noise, high precision CMOS operational amplifiers that provide a high output current of 240mA, rail-to-rail output operation from a range of 2.7V to 5.5V single supply. The SGM8557-3/5 are both available with shutdown pins that drive the output voltage low.
The SGM8557-1/2/3/5 offer low input offset voltage, low input offset voltage drift and high output current drive. These devices also can achieve a high 15MHz gain-bandwidth product and a high 7V/μs slew rate.
The SGM8557-1/2/3/5 are specifically designed to drive high current load, such as 32Ω headset, VBIAS of RF power amplifier, etc.
The SGM8557-1 is available in Green SOIC-8, MSOP-8 and SOT-23-5 packages. The SGM8557-2 is available in a Green SOIC-8 package. The SGM8557-3 is available in Green SOIC-8 and SOT-23-6 packages. The SGM8557-5 is available in a Green MSOP-10 package. They operate over an ambient temperature range of -40℃ to +125℃.
Output Drive Capability: 240mA
Low Input Offset Voltage: 5μV (MAX)
Low Input Offset Voltage Drift: 27nV/℃ (TYP)
Low Noise: 30nV/√Hz at 1kHz
Gain-Bandwidth Product: 15MHz
High Slew Rate: 7V/μs
High Open-Loop Gain (RL = 2kΩ): 144dB
Power Supply Rejection Ratio: 120dB
Over-Temperature Protection
No Phase Reversal for Overdriven Inputs
Rail-to-Rail Input and Output
Supply Voltage Range: 2.7V to 5.5V
Quiescent Supply Current: 1.2mA (TYP)
-40℃ to +125℃ Operating Temperature Range
Available in Green SOIC-8, MSOP-8, and SOT-23-5 Packages
Battery-Powered Equipment
Audio System
Optical Module
DAC Buffer
Industrial Equipment
| Part Number | Status | Package | Pins | Pb-Free | Temp Range | |
| SGM8557-1AXN5G/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +125℃ | Samples |
| SGM8557-1BXN5G/TR | Production | SOT-23-5 | 5 | Y | -40℃ to +125℃ | Samples |
| SGM8557-1XS8G/TR | Production | SOIC-8 | 8 | Y | -40℃ to +125℃ | Samples |
| SGM8557-1XMS8G/TR | Production | MSOP-8 | 8 | Y | -40℃ to +125℃ | Samples |
