REF191 Analog Devices, REF191 Datasheet

no-image

REF191

Manufacturer Part Number
REF191
Description
Manufacturer
Analog Devices
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
REF191E
Manufacturer:
AD
Quantity:
43
Part Number:
REF191E
Manufacturer:
AD
Quantity:
1 000
Part Number:
REF191E
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
REF191ES-REEL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
REF191ESZ
Manufacturer:
TI
Quantity:
6 223
Part Number:
REF191ESZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
REF191FSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
REF191G
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
REF191GP
Manufacturer:
ADI
Quantity:
1 945
Part Number:
REF191GP
Manufacturer:
TI
Quantity:
14
Part Number:
REF191GSZ
0
Part Number:
REF191GSZ-REEL
Manufacturer:
Analog Devices Inc.
Quantity:
2 000
FEATURES
Initial accuracy: ±2 mV maximum
Temperature coefficient: 5 ppm/°C maximum
Low supply current: 45 μA maximum
Sleep mode: 15 μA maximum
Low dropout voltage
Load regulation: 4 ppm/mA
Line regulation: 4 ppm/V
High output current: 30 mA
Short-circuit protection
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.
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_N package;
the PDIP and TSSOP packages are available only in the lowest
electrical grade. Products are also available in die form.
Rev. I
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.
Precision Micropower, Low Dropout
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
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. Since 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.
Table 1. Nominal Output Voltage
Part Number
REF191
REF192
REF193
REF194
REF195
REF196
REF198
Figure 1. 8-Lead SOIC_N and TSSOP Pin Configuration
Figure 2. 8-Lead PDIP Pin Configuration
SLEEP
SLEEP
NOTES
1. NC = NO CONNECT.
2. TP PINS ARE FACTORY TEST
NOTES
1. NC = NO CONNECT.
2. TP PINS ARE FACTORY TEST
GND
GND
POINTS, NO USER CONNECTION.
POINTS, NO USER CONNECTION.
TP
TP
V
V
S
S
Voltage References
(S Suffix and RU Suffix)
Nominal Output Voltage (V)
2.048
2.50
3.00
4.50
5.00
3.30
4.096
1
2
3
4
1
2
3
4
©2006 Analog Devices, Inc. All rights reserved.
(Not to Scale)
(Not to Scale)
REF19x
SERIES
TOP VIEW
REF19x
SERIES
TOP VIEW
(P Suffix)
REF19x Series
8
7
6
5
8
7
6
5
NC
NC
OUTPUT
TP
NC
NC
OUTPUT
TP
www.analog.com

Related parts for REF191

REF191 Summary of contents

Page 1

... SLEEP 3 TOP VIEW GND 4 (Not to Scale) NOTES CONNECT PINS ARE FACTORY TEST POINTS, NO USER CONNECTION. Figure 2. 8-Lead PDIP Pin Configuration Table 1. Nominal Output Voltage Part Number Nominal Output Voltage (V) REF191 2.048 REF192 2.50 REF193 3.00 REF194 4.50 REF195 5.00 REF196 3.30 REF198 4.096 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...

Page 2

... REF19x Series TABLE OF CONTENTS Specifications..................................................................................... 3 Electrical Characteristics—REF191 @ T Electrical Characteristics—REF191 @ −40°C ≤ T Electrical Characteristics—REF191 @ −40°C ≤ T Electrical Characteristics—REF192 @ T Electrical Characteristics—REF192 @ −40°C ≤ T Electrical Characteristics—REF192 @ −40°C ≤ T Electrical Characteristics—REF193 @ T Electrical Characteristics—REF193 @ −40°C ≤ T Electrical Characteristics— ...

Page 3

... SPECIFICATIONS ELECTRICAL CHARACTERISTICS—REF191 @ 3 25°C, unless otherwise noted Table 2. Parameter Mnemonic 1 INITIAL ACCURACY E Grade Grade G Grade 2 LINE REGULATION E Grade ΔV /Δ and G Grades 2 LOAD REGULATION E Grade ΔV /Δ and G Grades DROPOUT VOLTAGE V − LONG-TERM STABILITY ...

Page 4

... REF19x Series ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 3. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION E Grade F and G Grades 4 LOAD REGULATION E Grade F and G Grades DROPOUT VOLTAGE SLEEP PIN ...

Page 5

... ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +125°C, unless otherwise noted Table 4. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION E Grade F and G Grades 4 LOAD REGULATION E Grade F and G Grades DROPOUT VOLTAGE 1 For proper operation μF capacitor is required between the output pin and the GND pin of the device. ...

Page 6

REF19x Series ELECTRICAL CHARACTERISTICS—REF192 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 6. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION ...

Page 7

ELECTRICAL CHARACTERISTICS—REF193 @ 3 25°C, unless otherwise noted Table 8. Parameter Mnemonic 1 INITIAL ACCURACY G Grade V 2 LINE REGULATION G Grade ΔV 2 LOAD REGULATION G Grade ΔV DROPOUT ...

Page 8

REF19x Series ELECTRICAL CHARACTERISTICS—REF193 @ 3.3 V, –40°C ≤ T ≤ +125°C, unless otherwise noted Table 10. Parameter 1 ,2 TEMPERATURE COEFFICIENT 3 G Grade 4 LINE REGULATION G Grade LOAD REGULATION 4 G ...

Page 9

ELECTRICAL CHARACTERISTICS—REF194 @ −40°C ≤ 5.0 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 12. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade G Grade 3 4 LINE REGULATION E Grade ...

Page 10

REF19x Series ELECTRICAL CHARACTERISTICS—REF195 @ 5. 25°C, unless otherwise noted Table 14. Parameter 1 INITIAL ACCURACY E Grade F Grade G Grade 2 LINE REGULATION E Grade F and G Grades ...

Page 11

ELECTRICAL CHARACTERISTICS—REF195 @ −40°C ≤ 5.20 V, −40°C ≤ T ≤ +125°C, unless otherwise noted Table 16. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION E Grade ...

Page 12

REF19x Series ELECTRICAL CHARACTERISTICS—REF196 @ −40°C ≤ 3.5 V, –40°C ≤ T ≤ +85°C, unless otherwise noted Table 18. Parameter 1, 2 TEMPERATURE COEFFICIENT 3 G Grade 4 LINE REGULATION G Grade LOAD REGULATION ...

Page 13

ELECTRICAL CHARACTERISTICS—REF198 @ 5 25°C, unless otherwise noted Table 20. Parameter Mnemonic INITIAL ACCURACY 1 E Grade Grade G Grade LINE REGULATION 2 E Grade ΔV /ΔV O ...

Page 14

... Table 23. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard product dice. Consult factory to negotiate specifications based on dice lot qualifications through sample lot assembly and testing mA 25°C, unless otherwise noted. LOAD A Table 23. Parameter Mnemonic INITIAL ACCURACY REF191 V O REF192 REF193 REF194 REF195 REF196 REF198 LINE REGULATION ΔV /Δ ...

Page 15

ABSOLUTE MAXIMUM RATINGS Table 24. 1 Parameter Supply Voltage Output to GND Output to GND Short-Circuit Duration Storage Temperature Range PDIP, SOIC_N Package Operating Temperature Range REF19x Junction Temperature Range PDIP, SOIC_N Package Lead Temperature Range (Soldering 60 sec) 1 ...

Page 16

REF19x Series TYPICAL PERFORMANCE CHARACTERISTICS 5.004 3 TYPICAL PARTS 5.15V < V < 15V IN 5.003 5.002 5.001 5.000 4.999 4.998 4.997 4.996 –50 – TEMPERATURE (°C) Figure 3. REF195 Output Voltage vs. Temperature 32 5.15V ≤ V ...

Page 17

FREQUENCY (Hz) Figure 9. Ripple Rejection vs. Frequency 10µF REF19x 1kΩ 15V 10µF 1µF REF Figure 10. Ripple Rejection vs. Frequency Measurement Circuit ...

Page 18

REF19x Series 5V 100% 90% 10% 0% 200mV Figure 18. Line Transient Response 200µ Rev Page 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 REF195 DROPOUT ...

Page 19

APPLICATIONS OUTPUT SHORT-CIRCUIT BEHAVIOR The REF19x family of devices is completely protected from damage due to accidental output shorts to GND event of an accidental short-circuit condition, the reference device shuts down and limits its supply current ...

Page 20

REF19x Series REF19x 1kΩ OUTPUT 10kΩ OFF CONNECT Figure 22. Membrane Switch-Controlled Power Supply CURRENT-BOOSTED REFERENCES WITH CURRENT LIMITING While the ...

Page 21

One caveat to this approach is that although rail-to-rail output amplifiers work best in the application, these operational amplifiers require a finite amount (mV) of headroom when required to provide any load current. The choice for the circuit’s negative supply ...

Page 22

REF19x Series REF19x 3 SLEEP V 6 REF 1µF GND ADJUST V ≥ I × R (MAX (MIN) IN OUT OUT (REF19x) ...

Page 23

In applications where these devices are configured as low dropout voltage regulators, these wiring voltage drops can become a large source of error. To circumvent this problem, force and sense connections can be made to the reference through the use ...

Page 24

REF19x Series For V levels lower than the lower threshold, U3 output is low; S thus, U2 and Q1 are off while U1 is on. For V than the upper threshold, the situation reverses, with U1 off and both U2 ...

Page 25

OUTLINE DIMENSIONS 0.400 (10.16) 0.365 (9.27) 0.355 (9.02 0.280 (7.11) 0.250 (6.35) 1 0.240 (6.10) 4 0.100 (2.54) BSC 0.060 (1.52) MAX 0.210 (5.33) MAX 0.015 0.150 (3.81) (0.38) 0.015 (0.38) MIN GAUGE 0.130 (3.30) PLANE 0.115 (2.92) ...

Page 26

... REF191ESZ −40°C to +85°C 1 REF191ESZ-REEL −40°C to +85°C REF191GP −40°C to +85°C 1 REF191GPZ −40°C to +85°C REF191GS −40°C to +85°C REF191GS-REEL −40°C to +85°C 1 REF191GSZ −40°C to +85°C REF191GSZ-REEL 1 −40°C to +85°C REF192ES − ...

Page 27

Model Temperature Range 1 REF194GSZ-REEL7 −40°C to +85°C REF195ES −40°C to +85°C REF195ES-REEL −40°C to +85°C 1 REF195ESZ −40°C to +85°C 1 REF195ESZ-REEL −40°C to +85°C REF195FS −40°C to +85°C REF195FS-REEL −40°C to +85°C 1 REF195FSZ −40°C to +85°C REF195FSZ-REEL ...

Page 28

... REF19x Series NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners C00371-0-10/06(I) Rev Page ...

Related keywords