
Linear Technology
DESCRIPTION
The LT®1498/LT1499 are dual/quad, rail-to-rail input and output precision C-LoadTM op amps with a 10MHz gain-bandwidth product and a 6V/µs slew rate.
The LT1498/LT1499 are designed to maximize input dynamic range by delivering precision performance over the full supply voltage. Using a patented technique, both input stages of the LT1498/LT1499 are trimmed, one at the negative supply and the other at the positive supply. The resulting guaranteed common mode rejection is much better than other rail-to-rail input op amps. When used as a unity-gain buffer in front of single supply 12-bit A-to-D converters, the LT1498/LT1499 are guaranteed to add less than 1LSB of error even in single 3V supply systems.
FEATURES
■ Rail-to-Rail Input and Output
■ 475µV Max VOS from V + to V –
■ Gain-Bandwidth Product: 10MHz
■ Slew Rate: 6V/µs
■ Low Supply Current per Amplifier: 1.7mA
■ Input Offset Current: 50nA Max
■ Input Bias Current: 500nA Max
■ Open-Loop Gain: 1000V/mV Min
■ Low Input Noise Voltage: 12nV/√Hz Typ
■ Wide Supply Range: 2.2V to ±15V
■ Large Output Drive Current: 30mA
■ Stable for Capacitive Loads Up to 10,000pF
■ Dual in 8-Pin PDIP and SO Package
■ Quad in Narrow 14-Pin SO
APPLICATIONS
■ Driving A-to-D Converters
■ Active Filters
■ Rail-to-Rail Buffer Amplifiers
■ Low Voltage Signal Processing
■ Battery-Powered Systems