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LT1219CN8 Datasheet(PDF) 1 Page - Linear Technology |
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LT1219CN8 Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page 1 LT1218/LT1219 s Rail-to-Rail Input and Output s 90 µV VOS(MAX) for VCM = V– to V+ s High Common Mode Rejection Ratio: 97dB Min s C-Load TM Stable Version (LT1219) s High AVOL: 500V/mV Minimum Driving 10kΩ Load s Wide Supply Range: 2V to ±15V (LT1218/LT1219) 2V to ±5V (LT1218L/LT1219L) s Shutdown Mode: IS < 30µA s Low Supply Current: 420 µA Max s Low Input Bias Current: 18nA Typical s 300kHz Gain-Bandwidth Product (LT1218) s Slew Rate: 0.10V/ µs (LT1218) FEATURES DESCRIPTION The LT ®1218/LT1219 are bipolar op amps which combine rail-to-rail input and output operation with precision speci- fications. Unlike other rail-to-rail amplifiers, the LT1218/ LT1219’s input offset voltage is a low 90 µV 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 common mode rejection of 97dB minimum is much better than other rail- to-rail input op amps. A minimum open-loop gain of 500V/mV into a 10k load virtually eliminates all gain error. The LT1218 has conventional compensation which assures stability for capacitive loads of 1000pF or less. The LT1219 has compensation that requires the use of a 0.1 µF 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. APPLICATIONS s Driving A/D Converters s Test Equipment Amplifiers s MUX Amplifiers Precision Rail-to-Rail Input and Output Op Amps C-Load is a trademark of Linear Technology Corporation. , LTC and LT are registered trademarks of Linear Technology Corporation. Voltage Follower Input to Output Error MUX Amplifier TYPICAL APPLICATION – + – + LT1218L LT1218L VOUT VIN1 VIN2 INPUT SELECT 5V 5V 74HCO4 1218/19 • TA01 SHDN MAXIMUM IN TO OUT ERROR = 110 µV FOR 0.05V ≤ VIN ≤ 4.8V RL = 10k SHDN INPUT VOLTAGE (V) 0 123 4 LT1218/19 • TA02 5 VS = 5V AV = 1 NO LOAD 10 1.0 0.1 0.01 0.05 4.95 MAX ERROR = 110 µV 0.05V ≤ VIN ≤ 4.8V |
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