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REF191GRU4 PDF预览

REF191GRU4

更新时间: 2024-01-23 14:03:01
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REF19x Series: Precision Micropower. Low Dropout. Low Voltage References Data Sheet (Rev. E. 1/03)

REF191GRU4 数据手册

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Precision Micropower, Low Dropout  
Voltage References  
REF19x Series  
PIN CONFIGURATIONS  
8-Lead Narrow-Body SOIC and TSSOP  
(S Suffix and RU Suffix)  
FEATURES  
Initial Accuracy: ؎2 mV Max  
Temperature Coefficient: 5 ppm/؇C Max  
Low Supply Current: 45 A Max  
Sleep Mode: 15 A Max  
Low Dropout Voltage  
Load Regulation: 4 ppm/mA  
Line Regulation: 4 ppm/V  
High Output Current: 30 mA  
Short Circuit Protection  
1
2
3
4
NC  
TP  
8
7
6
5
REF19x  
SERIES  
TOP VIEW  
(Not to Scale)  
NC  
V
S
OUTPUT  
SLEEP  
GND  
TP  
NC = NO CONNECT  
TP PINS ARE FACTORY TEST POINTS,  
NO USER CONNECTION  
APPLICATIONS  
Portable Instrumentation  
A-to-D and D-to-A Converters  
Smart Sensors  
8-Lead Epoxy DIP (P Suffix)  
Solar Powered Applications  
Loop Current Powered Instrumentations  
NC  
1
2
TP  
8
7
6
5
REF19x  
SERIES  
NC  
V
S
GENERAL DESCRIPTION  
TOP VIEW  
(Not to Scale)  
OUTPUT  
TP  
3
4
SLEEP  
REF19x series precision band gap voltage references use a pat-  
ented temperature drift curvature correction circuit and laser  
trimming of highly stable thin film resistors to achieve a very low  
temperature coefficient and a high initial accuracy.  
GND  
NC = NO CONNECT  
TP PINS ARE FACTORY TEST POINTS,  
NO USER CONNECTION  
The REF19x series is made up of micropower, Low Dropout  
Voltage (LDV) devices providing a stable output voltage from  
supplies as low as 100 mV above the output voltage and consum-  
ing 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.  
Table I.  
Part  
Number  
Nominal Output  
Voltage (V)  
REF191  
REF192  
REF193  
REF194  
REF195  
REF196  
REF198  
2.048  
2.50  
3.00  
4.50  
5.00  
3.30  
4.096  
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 8-lead SOIC; the PDIP and  
TSSOP are only available in the lowest electrical grade. Products  
are also available in die form.  
ORDERING GUIDE  
Test Pins (TP)  
Temperature  
Range  
Package  
Description  
Package  
Option1  
The test pins, Pin 1 and 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.  
Since each unit may require a different amount of adjustment, the  
resistance value at the test pins will vary widely from pin to pin as  
well as from part to part. The user should not make any physical  
nor electrical connections to Pin 1 and Pin 5.  
Model  
REF19xGP  
REF19xES3  
REF19xFS3  
REF19xGS  
40°C to +85°C 8-Lead Plastic DIP2 N-8  
40°C to +85°C 8-Lead SOIC  
40°C to +85°C 8-Lead SOIC  
40°C to +85°C 8-Lead SOIC  
SOIC-8  
SOIC-8  
SOIC-8  
RU-8  
REF19xGRU4 40°C to +85°C 8-Lead TSSOP  
REF19xGBC 25°C  
DICE  
NOTES  
1N = Plastic DIP, SOIC = Small Outline, RU = Thin Shrink Small Outline.  
28-lead plastic DIP is only available in Ggrade.  
REV. E  
3REF193 and REF196 are only available in Ggrade.  
4Available for REF192, REF195, and REF198 only.  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. 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 companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  

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