AD840JQ

更新时间： 2024-11-20 22:38:35

品牌	Logo	应用领域
亚德诺 - ADI		运算放大器
页数	文件大小	规格书
8页	420K
描述
Wideband, Fast Settling Op Amp

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数据手册
替代型号

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AD840JQ 数据手册

Wideband,

Fast Settling Op Amp

AD840

FEATURES

CONNECTION DIAGRAMS

Wideband AC Performance

Plastic DIP (N) Package

LCC (E) Package

Gain Bandwidth Product: 400 MHz (Gain ≥ 10)

Fast Settling: 100 ns to 0.01% for a 10 V Step

Slew Rate: 400 V/␮s

and

Cerdip (Q) Package

Stable at Gains of 10 or Greater

Full Power Bandwidth: 6.4 MHz for 20 V p-p into a

500 ⍀ Load

Precision DC Performance

Input Offset Voltage: 0.3 mV max

Input Offset Drift: 3 ␮V/؇C typ

Input Voltage Noise: 4 nV/√Hz

Open-Loop Gain: 130 V/mV into a 1 k⍀ Load

Output Current: 50 mA min

Supply Current: 12 mA max

APPLICATIONS

Video and Pulse Amplifiers

DAC and ADC Buffers

Line Drivers

Available in 14-Pin Plastic DIP, Hermetic Cerdip

and 20-Pin LCC Packages and in Chip Form

MIL-STD-883B Processing Available

bandwidth active filters. The extremely rapid settling time of the

AD840 makes it the preferred choice for data acquisition appli-

cations which require 12-bit accuracy. The AD840 is also ap-

propriate for other applications such as high speed DAC and

ADC buffer amplifiers and other wide bandwidth circuitry.

APPLICATION HIGHLIGHTS

1. The high slew rate and fast settling time of the AD840 make

it ideal for DAC and ADC buffers, line drivers and all types

of video instrumentation circuitry.

PRODUCT DESCRIPTION

The AD840 is a member of the Analog Devices’ family of wide

bandwidth operational amplifiers. This high speed/high precision

family includes, among others, the AD841, which is unity-

gain stable, 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 400 MHz gain bandwidth product, the AD840 offers

extremely fast settling characteristics, typically settling to within

0.01% of final value in 100 ns for a 10 volt step.

2. The AD840 is truly a precision amplifier. It offers 12-bit

accuracy to 0.01% or better and wide bandwidth, perfor-

mance previously available only in hybrids.

3. The AD840’s thermally balanced layout and the high speed

of the CB process allow the AD840 to settle to 0.01% in

100 ns without the long “tails” that occur with other fast op

amps.

4. Laser wafer trimming reduces the input offset voltage to

0.3 mV max on the K grade, thus eliminating the need for

external offset nulling in many applications. Offset null pins

are provided for additional versatility.

The AD840 remains stable over its full operating temperature

range at closed-loop gains of 10 or greater. 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

4 nV/√Hz and a low input offset voltage of 0.3 mV maximum

(AD840K).

5. Full differential inputs provide outstanding performance

in all standard high frequency op amp applications where

circuit gain will be 10 or greater.

6. The AD840 is an enhanced replacement for the HA2540.

The 400 V/µs slew rate of the AD840, along with its 400 MHz

gain bandwidth, ensures excellent performance in video and

pulse amplifier applications. This amplifier is ideally suited for

use in high frequency signal conditioning circuits and wide

REV. C

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

12 3 4 5 6 7 8

中文翻译

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AD840JQ 替代型号

型号	品牌	替代类型	描述	数据表
AD841KNZ	ADI	完全替代	OP-AMP, 3300uV OFFSET-MAX, 40MHz BAND WIDTH, PDIP14, ROHS COMPLIANT, PLASTIC, DIP-14
AD842KNZ	ADI	功能相似	Wideband, High Output Current Fast Settling Op Amp
AD841JNZ	ADI	功能相似	Wideband, Unity-Gain Stable, Fast Settling Op Amp

与AD840JQ相关器件

型号	品牌	获取价格	描述	数据表
AD840KCHIPS	ADI	获取价格	暂无描述
AD840KN	ADI	获取价格	Wideband, Fast Settling Op Amp
AD840KQ	ADI	获取价格	Wideband, Fast Settling Op Amp
AD840S(E)/883B	ADI	获取价格	IC OP-AMP, 1000 uV OFFSET-MAX, 400 MHz BAND WIDTH, CQCC20, CERAMIC, LCC-20, Operational Am
AD840S(Q)/883B	ADI	获取价格	IC OP-AMP, 1000 uV OFFSET-MAX, 400 MHz BAND WIDTH, CDIP14, CERDIP-14, Operational Amplifie
AD840SE/883B	ADI	获取价格	IC OP-AMP, 1000 uV OFFSET-MAX, 400 MHz BAND WIDTH, CQCC20, CERAMIC, LCC-20, Operational Am
AD840SE-883B	ADI	获取价格	Wideband, Fast Settling Op Amp
AD840SQ	ADI	获取价格	Wideband, Fast Settling Op Amp
AD840SQ/883B	ADI	获取价格	IC OP-AMP, 1000 uV OFFSET-MAX, 400 MHz BAND WIDTH, CDIP14, CERDIP-14, Operational Amplifie
AD840SQ-883B	ADI	获取价格	Wideband, Fast Settling Op Amp

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