General Description These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These amplifiers feature low input bias and offset currents/low offset voltage and offset voltage drift, coupled with offset adjust which does not degrade drift or common-mode rejection. The devices are also designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current noise and a low 1/f noise corner.
Features Advantages n Replace expensive hybrid and module FET op amps n Rugged JFETs allow blow-out free handling compared with MOSFET input devices n Excellent for low noise applications using either high or low source impedance—very low 1/f corner n Offset adjust does not degrade drift or common-mode rejection as in most monolithic amplifiers n New output stage allows use of large capacitive loads (5,000 pF) without stability problems n Internal compensation and large differential input voltage capability
Applications n Precision high speed integrators n Fast D/A and A/D converters n High impedance buffers n Wideband, low noise, low drift amplifiers n Logarithmic amplifiers n Photocell amplifiers n Sample and Hold circuits
Common Features n Low input bias current: 30pA n Low Input Offset Current: 3pA n High input impedance: 1012W n Low input noise current: n High common-mode rejection ratio: 100 dB n Large dc voltage gain: 106 dB
