High-speed voltage feedback amplifier for wideband signal chains
The Texas Instruments THS4021ID is a single-channel voltage feedback operational amplifier in an 8-SOIC package. Its 350 MHz -3dB bandwidth and 470 V/µs slew rate suit high-speed analog signal conditioning. The 9 V to 32 V supply span allows single or split supply use. Supply draw is 7.8 mA quiescent. Input offset voltage is 500 µV and input bias current is 3 µA.
350 MHz bandwidth and 470 V/µs slew rate — what they mean for the signal path
The -3dB bandwidth of 350 MHz indicates the small-signal gain rolls off by 3 dB at that frequency. The 470 V/µs slew rate sets the large-signal rise time.
Industrial temperature range and active lifecycle
Rated for -40°C to 85°C operation, the THS4021ID suits factory-floor instrumentation, outdoor telecom line cards, and automotive cabin electronics. The lifecycle record shows it as Active, so there is no last-time-buy pressure — it can be designed into new production runs with confidence that supply will continue. The part is ROHS3 compliant, which covers current EU and most global RoHS requirements without an exemption hunt.