AD841: Wideband, Unity-Gain Stable, Fast Settling Op Amp

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 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/√Hz and low input offset voltage of 1 mV maximum.

The 300 V/us 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.

AD841 特点

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

AD841 功能框图

AD841 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
5962-89641012A	量产	20 ld LCC	20	军用
5962-8964101CA	量产	14 ld CerDIP	14	军用
AD841JH	量产	12 ld Header	12	商业
AD841JN	量产	14 ld PDIP	14	商业
AD841JNZ	量产	14 ld PDIP	14	商业
AD841JQ	量产	14 ld CerDIP	14	商业
AD841KH	量产	12 ld Header	12	商业
AD841KN	量产	14 ld PDIP	14	商业
AD841KNZ	量产	14 ld PDIP	14	商业
AD841KQ	量产	14 ld CerDIP	14	商业
AD841SE	量产	20 ld LCC	20	军用
AD841SE/883B	量产	20 ld LCC	20	军用
AD841SH	量产	12 ld Header	12	军用
AD841SH/883B	量产	12 ld Header	12	军用
AD841SQ	量产	14 ld CerDIP	14	军用
AD841SQ/883B	量产	14 ld CerDIP	14	军用

AD841 应用技术支持与电子电路设计开发资源下载

1. AD841 数据手册DataSheet 下载 . PDF
2. ADI 模拟器件公司比较器产品选型指南 . PDF
3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF