1 GHz bandwidth, 1350 V/µs slew rate — high-speed signal chain
The AD8045ARDZ-REEL7 is a voltage-feedback amplifier from Analog Devices, delivering a -3dB bandwidth of 1 GHz and a slew rate of 1350 V/µs. These two numbers together define its usable small-signal and large-signal speed: the bandwidth sets the frequency where gain rolls off by 3 dB, while the slew rate determines how fast the output can swing under a large step input — a 1 V step at this slew rate settles in under 1 ns, making the part suited for high-speed ADC drivers, video distribution, or wideband transimpedance stages. Single-circuit configuration in an 8-SOIC with exposed pad (8-SOIC-EP) — the thermal pad on the underside pulls heat into the PCB copper plane, so the layout must include a thermal via array under the pad to keep junction temperature within the -40°C to +125°C operating range.
Supply and output drive envelope
Operates from a 3.3 V to 12 V supply span — single-supply or split-supply rails are possible as long as the total span stays within that window. Quiescent current is 16 mA typical, so the self-heating at 12 V supply is under 200 mW before any load current. Output can source or sink 70 mA per channel. That drive capability, combined with the 1 GHz bandwidth, means the amplifier can drive a 50-ohm back-terminated cable or a low-impedance ADC input without an external buffer, as long as the load capacitance does not push the phase margin below stability. Input offset voltage is 200 µV typical, input bias current is 2 µA — both are moderate for a high-speed amplifier; the bias current is dominated by the input stage tail current, so source impedance should be balanced to avoid offset drift.
Active production, ROHS3, Tape & Reel
ROHS3 compliant, no exemptions beyond the standard lead-free reflow profile. Supplied in Tape & Reel (TR) or Cut Tape (CT) — the reel format is the production standard for pick-and-place; Cut Tape suits prototype or low-volume builds. Surface-mount mounting, 8-SOIC exposed-pad footprint.