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REF19x Series
TABLE OF CONTENTS
Specifications.....................................................................................3
Electrical Characteristics—REF191 @ T
A
= 25°C....................3
Electrical Characteristics—REF191 @ 40°C ≤ T
A
≤ +85°C..4
Electrical Characteristics—REF191 @ 40°C ≤ T
A
≤+125°C.5
Electrical Characteristics—REF192 @ T
A
= 25°C....................5
Electrical Characteristics—REF192 @ 40°C ≤ T
A
≤ +85°C..6
Electrical Characteristics—REF192 @ 40°C ≤ T
A
≤ +125°C 6
Electrical Characteristics—REF193 @ T
A
= 25°C....................7
Electrical Characteristics—REF193 @ 40°C ≤ T
A
≤ +85°C..7
Electrical Characteristics—REF193 @ T
A
≤ 40°C ≤ +125°C 8
Electrical Characteristics—REF194 @ T
a
= 25°C.....................8
Electrical Characteristics—REF194 @ 40°C ≤ T
A
≤ +85°C..9
Electrical Characteristics—REF194 @ 40°C ≤ T
≤ +125°C 9
Electrical Characteristics—REF195 @ T
A
= 25°C..................10
Electrical Characteristics—REF195 @ 40°C ≤ T
A
≤ +85°C 10
Electrical Characteristics—REF195 @ 40°C ≤ T
A
≤ +125°C
.......................................................................................................11
Electrical Characteristics—REF196 @ T
A
= 25°C..................11
Electrical Characteristics—REF196 @ 40°C ≤ T
A
≤ +85°C 12
Electrical Characteristics—REF196 @ 40°C ≤ T
A
≤ +125°C
.......................................................................................................12
Electrical Characteristics—REF198 @ T
A
= 25°C..................13
Electrical Characteristics—REF198 @ 40°C ≤ T
A
≤ +85°C 13
Electrical Characteristics—REF198 @ 40°C ≤ T
A
≤
+
125°C
.......................................................................................................14
Rev. I | Page 2 of 28
Wafer Test Limits........................................................................ 14
Absolute Maximum Ratings ......................................................... 15
Thermal Resistance.................................................................... 15
ESD Caution................................................................................ 15
Typical Performance Characteristics........................................... 16
Applications..................................................................................... 19
Output Short-Circuit Behavior ................................................ 19
Device Power Dissipation Considerations.............................. 19
Output Voltage Bypassing......................................................... 19
Sleep Mode Operation............................................................... 19
Basic Voltage Reference Connections ..................................... 19
Membrane Switch-Controlled Power Supply......................... 19
Current-Boosted References with Current Limiting............. 20
Negative Precision Reference without Precision Resistors... 20
Stacking Reference ICs for Arbitrary Outputs....................... 21
Precision Current Source.......................................................... 21
Switched Output 5 V/3.3 V Reference..................................... 22
Kelvin Connections.................................................................... 22
Fail-Safe 5 V Reference.............................................................. 23
Low Power, Strain Gage Circuit ............................................... 24
Outline Dimensions....................................................................... 25
Ordering Guide .......................................................................... 26
REVISION HISTORY
9/06—Rev. H to Rev. I
Updated Format..................................................................Universal
Changes to Table 25 .......................................................................15
Changes to Figure 6........................................................................16
Changes to Figure 10, Figure 12, Figure 14, and Figure 16.......17
Changes to Figure 18......................................................................18
Changes to Figure 20......................................................................19
Changes to Figure 23......................................................................20
Changes to Figure 25......................................................................21
Updated Outline Dimensions.......................................................25
Changes to Ordering Guide..........................................................26
6/05—Rev. G to Rev. H
Updated Format..................................................................Universal
Changes to Caption in Figure 7....................................................16
Updated Outline Dimensions.......................................................25
Changes to Ordering Guide..........................................................26
7/04—Rev. F to Rev. G
Changes to Ordering Guide.............................................................4
3/04—Rev. E to Rev. F
Updated Absolute Maximum Rating..............................................4
Changes to Ordering Guide.......................................................... 14
Updated Outline Dimensions....................................................... 24
1/03—Rev. D to Rev. E
Changes to Figure 3 and Figure 4................................................. 15
Changes to Output Short Circuit Behavior................................. 17
Changes to Figure 20...................................................................... 17
Changes to Figure 24...................................................................... 19
Updated Outline Dimensions....................................................... 23
1/96—Revision 0: Initial Version