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| 型号： | REF194ESZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 4.5V 8-SOIC |
| 标准包装： | 98 |
| 系列： | REF19 |
| 基准类型： | 串联，精度 |
| 输出电压： | 4.5V |
| 容差： | ±2mV |
| 温度系数： | 5ppm/°C |
| 输入电压： | 4.6 V ~ 15 V |
| 通道数： | 1 |
| 电流 - 静态： | 15µA |
| 电流 - 输出： | 30mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
| 产品目录页面： | 797 (CN2011-ZH PDF) |
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Precision Micropower,
Low Dropout Voltage References
Data Sheet
FEATURES
Temperature coefficient: 5 ppm/°C maximum
High output current: 30 mA
Low supply current: 45 μA maximum
Initial accuracy: ±2 mV maximum 1
Sleep mode: 15 μA maximum
Low dropout voltage
Load regulation: 4 ppm/mA
Line regulation: 4 ppm/V
TEST PINS
Test Pin 1 and Test Pin 5 are reserved for in-package Zener zap.
To achieve the highest level of accuracy at the output, the Zener
zapping technique is used to trim the output voltage. Because
each unit may require a different amount of adjustment, the
resistance value at the test pins varies widely from pin to pin
and from part to part. The user should leave Pin 1 and Pin 5
unconnected.
Short-circuit protection
TP 1
V S 2
SLEEP 3
REF19x
SERIES
TOP VIEW
8
7
6
NC
NC
OUTPUT
REF19x
SERIES
TOP VIEW
APPLICATIONS
Portable instruments
ADCs and DACs
Smart sensors
Solar powered applications
Loop-current-powered instruments
GENERAL DESCRIPTION
The REF19x series precision band gap voltage references use a
patented temperature drift curvature correction circuit and
laser trimming of highly stable, thin-film resistors to achieve a
very low temperature coefficient and high initial accuracy.
The REF19x series is made up of micropower, low dropout
voltage (LDV) devices, providing stable output voltage from
supplies as low as 100 mV above the output voltage and
consuming less than 45 μA of supply current. In sleep mode,
which is enabled by applying a low TTL or CMOS level to the
SLEEP pin, the output is turned off and supply current is
further reduced to less than 15 μA.
GND 4 (Not to Scale) 5 TP
NOTES
1. NC = NO CONNECT.
2. TP PINS ARE FACTORY TEST
POINTS, NO USER CONNECTION.
Figure 1. 8-Lead SOIC_N and TSSOP Pin Configuration
(S Suffix and RU Suffix)
TP 1 8 NC
V S 2 7 NC
SLEEP 3 6 OUTPUT
GND 4 (Not to Scale) 5 TP
NOTES
1. NC = NO CONNECT.
2. TP PINS ARE FACTORY TEST
POINTS, NO USER CONNECTION.
Figure 2. 8-Lead PDIP Pin Configuration
(P Suffix)
Table 1. Nominal Output Voltage
Part Number Nominal Output Voltage (V)
REF191 2.048
REF192 2.50
REF193 3.00
The REF19x series references are specified over the extended
industrial temperature range (?40°C to +85°C) with typical
performance specifications over ?40°C to +125°C for
applications, such as automotive.
All electrical grades are available in an 8-lead SOIC package; the
PDIP and TSSOP packages are available only in the lowest
electrical grade.
4.50
5.00
3.30
4.096
1
Initial accuracy does not include shift due to solder heat effect (see the
Applications Information section).
Rev. L
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?1996–2011 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| REF194ESZ | 制造商:Analog Devices 功能描述:VOLTAGE REFERENCE IC ((NW)) 制造商:Analog Devices 功能描述:IC, LDO SERIES V-REF, 4.5V, 2mV, 8-SOIC |
| REF194ESZ-REEL | 功能描述:IC VREF SERIES PREC 4.5V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:REF19 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR) |
| REF194FS | 制造商:Analog Devices 功能描述:V-Ref Precision 4.5V 30mA 8-Pin SOIC Tube 制造商:Rochester Electronics LLC 功能描述:MICROPOWER VOLTAGE REF - Bulk |
| REF194FS3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:REF19x Series: Precision Micropower. Low Dropout. Low Voltage References Data Sheet (Rev. E. 1/03) |
| REF194FS-REEL | 制造商:Rochester Electronics LLC 功能描述:MICROPOWER VOLTAGE REF TA - Tape and Reel |
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