AD845JRZ-16

Product Summary

The AD845JRZ-16 is a fast, precise, N channel JFET input, monolithic operational amplifier. It is fabricated using Analog Devices complementary bipolar (CB) process. Advanced laser-wafer trimming technology enables the very low input offset voltage and offset voltage drift performance to be realized. This precision, when coupled with a slew rate of 100 V/ms, a stable unity gain bandwidth of 16 MHz, and a settling time of 350 ns to 0.01%—while driving a parallel load of 100 pF and 500 W—represents a combination of features unmatched by any FET input IC amplifier. The AD845JRZ-16 can easily be used to upgrade many existing designs that use BiFET or FET input hybrid amplifiers and, in some cases, those which use bipolar input op amps. The AD845JRZ-16 is ideal for use in applications such as active filters, high speed integrators, photodiode preamps, sample-and-hold amplifiers, and log amplifiers, and for buffering A/D and D/A converters. The 250 mV max input offset voltage makes offset nulling unnecessary in many applications. The common-mode rejection ratio of 110 dB over a ±10 V input voltage range represents exceptional performance for a JFET input high speed op amp. This, together with a minimum open-loop gain of 250 V/mV ensures that 12-bit performance is achieved, even in unity gain buffer circuits. The AD845JRZ-16 conforms to the standard op amp pinout except that offset nulling is to V+.

Parametrics

AD845JRZ-16 absolute maximum ratings: (1)Supply Voltage: ±18 V; (2)Internal Power Dissipation2: Plastic Mini-DIP: 1.6 W; (3)Input Voltage: +VS; (4)Output Short-Circuit Duration: Indefinite; (5)Differential Input Voltage: +VS and –VS; (6)Storage Temperature Range Q: -65°C to +150°C; (7)Lead Temperature Range (Soldering 60 sec): 300°C.

Features

AD845JRZ-16 features: (1)replaces hybrid amplifiers in many applications; (2)AC performance: settles to 0.01% in 350 ns; (3)DC performance:0.25 mV max input offset voltage; (4)available in plastic mini-dip, Hermetic CERDIP, and SOIC Packages. also available in tape and reel in accordance with EIA-481A standard.

Diagrams