SGM8557-1/SGM8557-2
SGM8557-3/SGM8557-5
15MHz, High Output Drive, High Precision,
Low Noise Operational Amplifiers
GENERAL DESCRIPTION
FEATURES
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.
• 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
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.
• No Phase Reversal for Overdriven Inputs
• Rail-to-Rail Input and Output
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Supply Current:
The SGM8557-1/2/3/5 are specifically designed to
drive high current load, such as 32Ω headset, VBIAS of
RF power amplifier, etc.
1.2mA/Amplifier (TYP)
0.3μA/Amplifier (TYP) Shutdown Current for
SGM8557-3/5
• -40℃ to +125℃ Operating Temperature Range
• Small Packaging:
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℃.
SGM8557-1 Available in Green SOIC-8, MSOP-8,
and SOT-23-5 Packages
SGM8557-2 Available in a Green SOIC-8 Package
SGM8557-3 Available in Green SOIC-8 and
SOT-23-6 Packages
SGM8557-5 Available in a Green MSOP-10 Package
TYPICAL OPERATING CIRCUIT
APPLICATIONS
Antenna
Battery-Powered Equipment
Audio System
2.7V to 5.5V
PA
Optical Module
IOUT = 30mA
DAC
+
RISO
DAC Buffer
SGM8557-1
CL
Industrial Equipment
_
CF1
RF
R
CF2
SG Micro Corp
SEPTEMBER2021–REV. B
www.sg-micro.com