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OPA656
SBOS196I – DECEMBER 2001 – REVISED FEBRUARY 2024
OPA656 550MHz, Unity-Gain Stable, FET-Input Operational Amplifier
1 Features
• Wide bandwidth:
– Gain-bandwidth product: 230MHz – Unity-gain bandwidth: 550MHz – Large-signal bandwidth (2VPP): 150MHz • High precision:
– Input offset voltage: 600μV (maximum) – Input offset voltage drift: 6μV/°C (maximum) • Input voltage noise: 6nV/√Hz • Input bias current: 2pA • Low distortion (RL = 200Ω, VO = 2VPP): – HD2, HD3 at 5MHz: –80dBc, –100dBc • Supply range: 8V to 12V
2 Applications
• High-speed data acquisition (DAQ) • Medical and chemical analyzers • Active probes • Oscilloscopes • Optical communication modules • Test and measurement front-ends • Optical time-domain reflectometry (OTDR)
VBIAS
VREF
CPD (20 pF)
5V
+ OPA656 VO
–
–5 V
100 k
OPA656 Datasheet
