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| 型号： | EVAL-PRAOPAMP-1RZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | ADAPTOR BOARD SINGLE AMP 8SOIC |
| 标准包装： | 1 |
| 每 IC 通道数： | 1 - 单 |
| 放大器类型： | 通用 |
| 板类型： | 裸（未填充） |
| 已供物品： | 板 |
| 已用 IC / 零件： | 8-SOIC 封装 |
AN-732
APPLICATION NOTE
One Technology Way ? P.O. Box 9106 ? Norwood, MA 02062-9106 ? Tel: 781/329-4700 ? Fax: 781/326-8703 ? www.analog.com
Universal Precision Op Amp Evaluation Board in SOIC Package
by Giampaolo Marino, Sou?ane Bendaoud, and Steve Ranta
INTRODUCTION
The EVAL-PRAOPAMP-1R is an evaluation board which
accommodates single op amps in SOIC packages. It is
meant to provide the user with multiple choices and
extensive ?exibility for different applications circuits
and con?gurations. This board is not intended to be
used with high frequency components or high speed
ampli ?ers. However, it provides the user with many
LOW-PASS FILTER
Figure 1 is a typical representation of a ?rst-order low-
pass ?lter. This circuit has a 6 dB per octave roll-off
after a close-loop –3 dB point de?ned by f C . Gain below
this frequency is de?ned as the magnitude of R7 to R2.
The circuit might be considered as an ac integrator for
frequencies well above f C ; however, the time domain
response is that of a single RC, rather than an integral.
combinations for various circuit types including active
?lters, differential ampli?ers, and external frequency
compensation circuits. A few examples of application
f C = 1/(2
f L = 1/(2
R7
R2
C7); –3 dB frequency
C7); unity gain frequency
circuits are given in this application note.
C7
R7
Acl = –(R7/R2); close loop gain
R6 should be chosen equal to the parallel combination
between R7 and R2 in order to minimize errors due to
bias currents.
R7
V IN
R2
R6
V OUT
V IN 1
V IN 2
R2
R4
V OUT
R6
60
Figure 2. Difference Ampli?er
40
f C
DIFFERENCE AMPLIFIER AND PERFORMANCE
OPTIMIZATION
20
Figure 2 shows an op amp con?gured as a difference
ampli?er. The difference ampli?er is the complement
of the summing ampli?er, and allows the subtraction
0
–20
R7/R2 = 100
f L
of two voltages or the cancellation of a signal common
to both inputs. The circuit shown in Figure 2 is useful
as a computational ampli?er in making a differential
to single-ended conversion or in rejecting a common-
f
10f
100f 1000f
RELATIVE FREQUENCY
10000f
mode signal. The output voltage V OUT is comprised of
two separate components:
Figure 1. Simple Low-Pass Filter
1. A component V OUT 1 due to V IN 1 acting alone (V IN 2
short-circuited to ground.)
2. A component V OUT 2 due to V IN 2 acting alone (V IN 1
short-circuited to ground.)
REV. A
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| EVAL-PRAOPAMP-2RMZ | 功能描述:ADAPTOR BOARD DUAL AMP MSOP RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVAL-PRAOPAMP-2RZ | 功能描述:ADAPTOR BOARD DUAL AMP SOIC RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVAL-PRAOPAMP-4RUZ | 功能描述:ADAPTOR BOARD QUAD AMP 14TSSOP RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVAL-PRAOPAMP-4RZ | 功能描述:ADAPTOR BOARD QUAD AMP 14SOIC RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVALQRC-ICE2QR0665 | 制造商:Infineon Technologies AG 功能描述:40W20V EVALUATION BOARD - Bulk 制造商:Infineon Technologies 功能描述:Infineon EVALQRC-ICE2QR0665 Development Kits |
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