LT1218 Datasheet | Linear Technology

LT1218/LT1219 Precision Rail-to-Rail Input and Output Op Amps Features s s s s s s DESCRIPTION The LT ®1218/LT1219 are bipolar op amps which bine rail-to-rail input and output operation with precision specifications. Unlike other rail-to-rail amplifiers, the LT1218/ LT1219’s input offset voltage is a low 90µV across the entire rail-to-rail input range, not just a portion of it. Using a patented technique, both input stages of the LT1218/ LT1219 are trimmed: one at the negative supply and the other at the positive supply. The resulting mon mode rejection of 97d B minimum is much better than other railto-rail input op amps. A minimum open-loop gain of 500V/m V into a 10k load virtually eliminates all gain error. The LT1218 has conventional pensation which assures stability for capacitive loads of 1000p F or less. The LT1219 has pensation that requires the use of a 0.1µF output capacitor, which improves the amplifier’s supply rejection and reduces output impedance at high frequencies. The output capacitor’s filtering action also reduces high frequency noise, which is beneficial when driving A/D converters. High and low voltage versions of the devices are offered. Operation is specified for 3V, 5V and ± 5V supplies for the LT1218L/LT1219L and 3V, 5V and ±15V for the LT1218/ LT1219. s s s s s Rail-to-Rail Input and Output 90µV VOS(MAX) for VCM = V - to V + High mon Mode Rejection Ratio: 97d B Min C-Load TM Stable Version (LT1219) High AVOL: 500V/m V Minimum Driving 10kΩ Load Wide Supply Range: 2V to ±15V (LT1218/LT1219) 2V to ± 5V (LT1218L/LT1219L) Shutdown Mode: IS < 30µA Low Supply Current: 420µA Max Low Input Bias Current: 18n A Typical 300k Hz Gain-Bandwidth Product (LT1218) Slew Rate: 0.10V/µs (LT1218) U APPLICATIONS s s s Driving A/D Converters Test Equipment Amplifiers MUX Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. C-Load is a trademark of Linear Technology Corporation. TYPICAL APPLICATION MUX Amplifier 5V...