The LT1221 is a very high-speed operational amplifier with superior DC performance. It features reduced input offset voltage, lower input bias currents, and higher DC gain than devices with comparable bandwidth and slew rate. The circuit is a single gain stage that includes proprietary DC gain enhancement circuitry to obtain precision with high speed. The high gain and fast settling time make the circuit an ideal choice for data acquisition systems. The circuit is also capable of driving capacitive loads, making it useful in buffer or cable driver applications.
The LT1221 is a very high‑speed operational amplifier featuring superior DC performance, low input offset voltage, low bias current, and high gain. It is stable in a noise‑gain of 4 or greater and can drive capacitive loads, making it suitable for data‑acquisition, buffer, cable‑driver, and active‑filter applications.
The device is offered in several 8‑lead packages (plastic DIP, plastic SOIC, ceramic DIP) and includes detailed absolute‑maximum ratings, electrical characteristics, and typical performance curves for both small‑signal and large‑signal operation.
| Gain‑Bandwidth Product | 150 MHz |
|---|---|
| Slew Rate | 250 V/µs |
| Input Bias Current (typical) | 300 nA |
| Supply Voltage Range (operating) | ±12 V |
| Maximum Supply Voltage | 36 V |
The LT1221 has a gain‑bandwidth product of 150 MHz.
The absolute maximum total supply voltage is 36 V.
Yes, the LT1221 is stable with capacitive loads and includes compensation for them.