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参数资料
| 型号： | VRE302LS |
| 厂商： | Apex Microtechnology |
| 文件页数： | 4/4页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 2.5V 8-SMT |
| 标准包装： | 1 |
| 基准类型： | 串联，精度 |
| 输出电压： | 2.5V |
| 容差： | ±600µV |
| 温度系数： | 2.2ppm/°C |
| 输入电压： | 13.5 V ~ 22 V |
| 通道数： | 1 |
| 电流 - 静态： | 7mA |
| 电流 - 输出： | 10mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SMD，扁平引线 |
| 供应商设备封装： | 8-SMT |
| 包装： | 管件 |
VRE302
The proper connection of the VRE302 series voltage references with the optional trim resistor for initial error is
shown below. The VRE302 reference has the ground terminal brought out on two pins (pin 4 and pin 7) which
are connected together internally. This allows the user to achieve greater accuracy when using a socket. Voltage
references have a voltage drop across their power supply ground pin due to quiescent current flowing through the
contact resistance. If the contact resistance was constant with time and temperature, this voltage drop could be
trimmed out. When the reference is plugged into a socket, this source of error can be as high as 20 ppm. By con-
necting pin 4 to the power supply ground and pin 7 to a high impedance ground point in the measurement circuit,
the error due to the contact resistance can be eliminated. If the unit is soldered into place, the contact resistance is
sufficiently small that it does not effect performance. Pay careful attention to the circuit layout to avoid noise pickup
and voltage drops in the lines.
EXTERNAL CONNECTIONS
+ V IN V TEMP OUT
PIN CONFIGURATION
2
3
OPTIONAL
NOISE REDUCTION
CAPACITOR
C N
1μF
8
VRE302
7 4
6
5
+ V OUT
10k Ω
OPTIONAL
FINE TRIM
ADJUSTMENT
N.C.
+V IN
TEMP
GND
1
2
3
4
VRE302
TOP
VIEW
8
7
6
5
NOISE
REF. GND
V OUT
TRIM
REF. GND
CONTACTING CIRRUS LOGIC SUPPORT
For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America.
For inquiries via email, please contact apex.support@cirrus.com.
International customers can also request support by contacting their local Cirrus Logic Sales Representative.
To find the one nearest to you, go to www.cirrus.com
IMPORTANT NOTICE
Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject
to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant
information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus
for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third
parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,
copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives con-
sent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent
does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROP-
ERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED TO BE
SUITABLE FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PROD-
UCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUS-
TOMER’S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE
CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES,
BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL
LIABILITY, INCLUDING ATTORNEYS’ FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.
Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc.
All other brand and product names in this document may be trademarks or service marks of their respective owners.
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VRE302DS
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相关代理商/技术参数 |
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| VRE303A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
| VRE303AD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| VRE303AS | 制造商:Thaler Corp 功能描述:THREE TERM VOLTAGE REFERENCE, 8 Pin Plastic SOP |
| VRE303B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
| VRE303BD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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