400MHz, 2500V/μs, 9mA Single Operational Amplifiers

The LT1818/LT1819 are single/dual wide bandwidth, high slew rate, low noise and distortion operational amplifiers with excellent DC performance. The LT1818/LT1819 have been designed for wider bandwidth and slew rate, much lower input offset voltage and lower noise and distortion than devices with comparable supply current. The circuit topology is a voltage feedback amplifier with the excellent slewing characteristics of a current feedback amplifier.

The output drives a 100Ω load to ±3.8V with ±5V supplies. On a single 5V supply, the output swings from 1V to 4V with a 100Ω load connected to 2.5V. The amplifier is unity-gain stable with a 20pF capacitive load without the need for a series resistor. Harmonic distortion is –85dBc up to 5MHz for a 2VP-P output at a gain of 2.

The LT1818/LT1819 are manufactured on our advanced low voltage complementary bipolar process. The LT1818 (single op amp) is available in TSOT-23 and SO-8 packages; the LT1819 (dual op amp) is available in MSOP-8 and SO-8 packages.

Applications

* Wideband Amplifiers

* Buffers

* Active Filters

* Video and RF Amplification

* Communication Receivers

* Cable Drivers

* Data Acquisition Systems

* 400MHz Gain Bandwidth Product

* 2500V/μs Slew Rate

* –85dBc Distortion at 5MHz

* 9mA Supply Current Per Amplifier

* 6nV/√Hz Input Noise Voltage

* Unity-Gain Stable

* 1.5mV Maximum Input Offset Voltage

* 8μA Maximum Input Bias Current

* 800nA Maximum Input Offset Current

* 40mA Minimum Output Current, VOUT = ±3V

* ±3.5V Minimum Input CMR, VS = ±5V

* Specified at ±5V, Single 5V Supplies

* Operating Temperature Range: –40°C to 85°C

* Low Profile (1mm) TSOT-23 (ThinSOT™) Package