The SGM8604-1 (single), SGM8604-3 (single with shutdown), SGM8604-2 (dual) and SGM8604-5 (dual with shutdown) high output drive CMOS operational amplifiers feature a peak output current of 232mA, rail-to-rail output capability from a single 2.7V to 5.5V supply. These amplifiers exhibit a high slew rate of 7V/μs and a gain-bandwidth product (GBP) of 15MHz. The SGM8604-1/2/3/5 can drive typical headset levels (32Ω), as well as bias an RF power amplifier in wireless handset applications.
These operational amplifiers are designed to be part of the power amplifier control circuitry, biasing RF power amplifiers in wireless headsets. The SGM8604-3/5 offer a shutdown feature that drives the output low. This ensures that the RF power amplifier is fully disabled when needed, preventing unconverted signals to the RF antenna.
The SGM8604-1/2/3/5 offer low input offset voltage, low input offset voltage drift, wide bandwidth and high output drive.
The SGM8604-1/3 are available in a Green UTDFN-1.45×1-6L package. The SGM8604-2 is available in a Green TDFN-2×3-8AL package. The SGM8604-5 is available in a Green TDFN-3×3-10L package. They operate over an ambient temperature range of -40℃ to +125℃.
232mA Output Drive Capability
Low Input Offset Voltage: 10μV (MAX)
Low Input Offset Voltage Drift: 17nV/℃ (TYP)
Low Noise: 22nV/√Hz at 1kHz
Supply Voltage Range: 2.7V to 5.5V
Quiescent Supply Current: 1.2mA (TYP)
Gain-Bandwidth Product: 15MHz
High Slew Rate: 7V/μs
Voltage Gain (RL = 2kΩ): 145dB
Power Supply Rejection Ratio: 127dB
No Phase Reversal for Overdriven Inputs
Available in a Green UTDFN-1.45×1-6L Package
RF Power Amplifier Biasing Controls
Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32Ω)
Audio Hands-Free Car Phones (Kits)
Laptop/Notebook Computers/TFT Panels
Digital-to-Analog Converter Buffers
|-40℃ to +125℃