The AD8047/AD8048 are 250 MHz general purpose voltage feedback op amps whose low distortion and cap load drive make them ideal for buffering high speed ADCs. They are suitable for 12-bit/10 MSPS or 8-bit/60 MSPS ADCs. Additionally, the balanced high impedance inputs of the voltage feedback architecture allow maximum flexibility when designing active filters. The AD8047 and AD8048 are offered in industrial (–40°C to +85°C) temperature ranges and are available in 8-lead PDIP and SOIC packages.
The AD8047 and AD8048 are high‑speed, wide‑bandwidth voltage‑feedback operational amplifiers. AD8047 is unity‑gain stable, while AD8048 is stable at gains of two or greater. Both devices feature low distortion, high slew rates, and the ability to drive 50 pF capacitive loads, making them suitable for high‑speed ADC buffering, video, and RF applications.
These amplifiers are offered in industrial‑grade temperature ranges (‑40 °C to +85 °C) and are available in 8‑lead PDIP and SOIC packages. Detailed electrical characteristics, absolute maximum ratings, and ordering information are provided in the datasheet.
| Small‑Signal Bandwidth | 250 MHz (AD8047) / 260 MHz (AD8048) |
|---|---|
| Large‑Signal Bandwidth | 130 MHz (AD8047) / 160 MHz (AD8048) |
| Slew Rate | 750 V/µs (AD8047) / 1000 V/µs (AD8048) |
| Typical Supply Current | 5.8 mA (AD8047) / 6.6 mA (AD8048) |
| Input Voltage Noise (100 kHz) | 5.2 nV/√Hz (AD8047) / 3.8 nV/√Hz (AD8048) |
| Output Current Capability | 50 mA |
| Supply Voltage Range | +3 V to +6 V |
| Operating Temperature Range | -40 °C to +85 °C |
The AD8047 draws about 5.8 mA typical, while the AD8048 draws about 6.6 mA typical.
Both devices are offered in 8‑lead PDIP (N) and 8‑lead SOIC (R) packages.
They are rated for industrial temperature operation from –40 °C to +85 °C.
The AD8047 provides up to 250 MHz and the AD8048 up to 260 MHz small‑signal bandwidth.