AD841

Features:

AC PERFORMANCE
Unity-Gain Bandwidth: 40 MHz
Fast Settling: 110 ns to 0.01%
Slew Rate: 300 V/ms
Full Power Bandwidth: 4.7 MHz for 20 V p-p into a 500 Load
DC PERFORMANCE
Input Offset Voltage: 1 mV max
Input Voltage Noise: 13 nV/ typ
Open-Loop Gain: 45 V/mV into a 1 kV Load
Output Current: 50 mA min
Supply Current: 12 mA max


Application

·High Speed Signal Conditioning
·Video and Pulse Amplifiers
·Data Acquisition Systems
·Line Drivers
·Active Filters
·Available in 14-Pin Plastic DIP Hermetic Cerdip, 12-Pin
·TO-8 Metal Can and 20-Pin LCC Packages
·Chips and MIL-STD-883B Parts Available

Pinout




Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation²
TO-8 (H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 W
Plastic (N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 W
Cerdip (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 W
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±Vs
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±6 V
Storage Temperature Range
Q, H, E . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to +150
N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 to +125
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +175
Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300


Description

The AD841 is a member of the Analog Devices family of wide bandwidth operational amplifiers. This high speed/high precision family includes, among others, the AD840, which is stable at a gain of 10 or greater, and the AD842, which is stable at a gain of two or greater and has 100 mA minimum output current drive.

These devices AD841 are fabricated using Analog Devices' junction isolated complementary bipolar (CB) process. This process permits a combination of dc precision and wideband ac performance previously unobtainable in a monolithic op amp. In addition to its 40 MHz unity-gain bandwidth product, the AD841 offers extremely fast settling characteristics, typically settling to within 0.01% of final value in 110 ns for a 10 volt step.

Unlike many high frequency amplifiers, the AD841 requires no external compensation. It remains stable over its full operating temperature range. It also offers a low quiescent current of 12 mA maximum, a minimum output current drive capability of 50 mA, a low input voltage noise of 13 nV/ and low input offset voltage of 1 mV maximum.

The 300 V/ms slew rate of the AD841, along with its 40 MHz gain bandwidth, ensures excellent performance in video and pulse amplifier applications. This amplifier is well suited for use in high frequency signal conditioning circuits and wide bandwidth active filters. The extremely rapid settling time of the AD841 makes it the preferred choice for data acquisition applications which require 12-bit accuracy. The AD841 is also appropriate for other applications such as high speed DAC and ADC buffer amplifiers and other wide bandwidth circuitry.