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参数资料
| 型号： | EVAL-PRAOPAMP-1RJZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | ADAPTOR BOARD SINGLE AMP SOT23-5 |
| 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： | SOT-23-5 封装 |
AN-735
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 SOT-23 PACKAGE
BY GIAMPAOLO MARINO, SOUfiANE BENDAOUD, AND STEVE RANTA
INTRODUCTION
THE EVAL-PRAOPAMP-1RJ IS AN EVALUATION BOARD WHICH
ACCOMMODATES SINGLE OP AMPS IN SOT-23 PACKAGES. IT
IS MEANT TO PROVIDE THE USER WITH MULTIPLE CHOICES AND
EXTENSIVE flEXIBILITY FOR DIFFERENT APPLICATIONS CIRCUITS
AND CONfiGURATIONS. THIS BOARD IS NOT INTENDED TO BE
USED WITH HIGH FREQUENCY COMPONENTS OR HIGH SPEED
AMPLIfiERS. HOWEVER, IT PROVIDES THE USER WITH MANY
COMBINATIONS FOR VARIOUS CIRCUIT TYPES INCLUDING ACTIVE
fiLTERS, DIFFERENTIAL AMPLIfiERS, AND EXTERNAL FREQUENCY
COMPENSATION CIRCUITS. A FEW EXAMPLES OF APPLICATION
CIRCUITS ARE GIVEN IN THIS APPLICATION NOTE.
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LOW-PASS FILTER
FIGURE 1 IS A TYPICAL REPRESENTATION OF A fiRST-ORDER LOW-
PASS fiLTER. THIS CIRCUIT HAS A 6 DB PER OCTAVE ROLL-OFF
AFTER A CLOSE-LOOP –3 DB POINT DEfiNED BY F C . GAIN BELOW
THIS FREQUENCY IS DEfiNED 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.
F C = 1/(2 R7 C7); –3 DB FREQUENCY
F L = 1/(2 R2 C7); UNITY GAIN FREQUENCY
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.
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FIGURE 2. DIFFERENCE AMPLIfiER
DIFFERENCE AMPLIFIER AND PERFORMANCE
OPTIMIZATION
FIGURE 2 SHOWS AN OP AMP CONfiGURED AS A DIFFERENCE
AMPLIfiER. THE DIFFERENCE AMPLIfiER IS THE COMPLEMENT
OF THE SUMMING AMPLIfiER, AND ALLOWS THE SUBTRACTION
OF TWO VOLTAGES OR THE CANCELLATION OF A SIGNAL COMMON
TO BOTH INPUTS. THE CIRCUIT SHOWN IN FIGURE 2 IS USEFUL
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AS A COMPUTATIONAL AMPLIfiER IN MAKING A DIFFERENTIAL
TO SINGLE-ENDED CONVERSION OR IN REJECTING A COMMON-
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
相关PDF资料 |
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| EVAL-PRAOPAMP-1RMZ | ADAPTOR BOARD SINGLE AMP 8MSOP |
| EVAL-PRAOPAMP-1RZ | ADAPTOR BOARD SINGLE AMP 8SOIC |
| EVAL-PRAOPAMP-2RMZ | ADAPTOR BOARD DUAL AMP MSOP |
| EVAL-PRAOPAMP-4RUZ | ADAPTOR BOARD QUAD AMP 14TSSOP |
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相关代理商/技术参数 |
参数描述 |
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| EVAL-PRAOPAMP-1RMZ | 功能描述:ADAPTOR BOARD SINGLE AMP 8MSOP 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-1RZ | 功能描述:ADAPTOR BOARD SINGLE AMP 8SOIC 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-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:- |
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