Datasheet

REF19x Series Data Sheet
Rev. L | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Test Pins ............................................................................................. 1
Revision History ............................................................................... 3
Specifications..................................................................................... 4
Electrical Characteristics—REF191 @ T
A
= 25°C.................... 4
Electrical Characteristics—REF191 @ −40°C ≤ +85°C........... 5
Electrical Characteristics—REF191 @
−40°C ≤ T
A
≤ +125°C................................................................... 6
Electrical Characteristics—REF192 @ T
A
= 25°C.................... 6
Electrical Characteristics—REF192 @ −40°C ≤ T
A
≤ +85°C
......................................................................................................... 7
Electrical Characteristics—REF192 @ −40°C ≤ T
A
≤ +125°C
......................................................................................................... 7
Electrical Characteristics—REF193 @ T
A
= 25°C.................... 8
Electrical Characteristics—REF193 @ −40°C ≤ T
A
≤ +85°C
......................................................................................................... 8
Electrical Characteristics—REF193 @ T
A
≤ −40°C ≤ +125°C
......................................................................................................... 9
Electrical Characteristics—REF194 @ T
A
= 25°C.................... 9
Electrical Characteristics—REF194 @ −40°C ≤ T
A
≤ +85°C
....................................................................................................... 10
Electrical Characteristics—REF194 @ −40°C ≤ T
A
≤ +125°C
....................................................................................................... 10
Electrical Characteristics—REF195 @ T
A
= 25°C.................. 11
Electrical Characteristics—REF195 @ −40°C ≤ T
A
≤ +85°C
....................................................................................................... 11
Electrical Characteristics—REF195 @ −40°C ≤ T
A
≤ +125°C
....................................................................................................... 12
Electrical Characteristics—REF196 @ T
A
= 25°C.................. 12
Electrical Characteristics—REF196 @ −40°C ≤ T
A
≤ +85°C
....................................................................................................... 13
Electrical Characteristics—REF196 @ −40°C ≤ T
A
≤ +125°C
....................................................................................................... 13
Electrical Characteristics—REF198 @ T
A
= 25°C.................. 14
Electrical Characteristics—REF198 @ −40°C ≤ T
A
≤ +85°C
....................................................................................................... 14
Electrical Characteristics—REF198 @ −40°C ≤ T
A
≤ 125°C15
Absolute Maximum Ratings ......................................................... 16
Thermal Resistance.................................................................... 16
ESD Caution................................................................................ 16
Typical Performance Characteristics ........................................... 17
Applications Information.............................................................. 20
Output Short-Circuit Behavior ................................................ 20
Device Power Dissipation Considerations.............................. 20
Output Voltage Bypassing......................................................... 20
Sleep Mode Operation............................................................... 20
Basic Voltage Reference Connections ..................................... 20
Membrane Switch-Controlled Power Supply............................. 20
Solder Hear Effect ...................................................................... 21
Current-Boosted References with Current Limiting............. 21
Negative Precision Reference Without Precision Resistors.. 22
Stacking Reference ICs for Arbitrary Outputs ....................... 22
Precision Current Source .......................................................... 23
Switched Output 5 V/3.3 V Reference..................................... 23
Kelvin Connections.................................................................... 24
Fail-Safe 5 V Reference.............................................................. 24
Low Power, Strain Gage Circuit ............................................... 25
Outline Dimensions ....................................................................... 26
Ordering Guide .......................................................................... 27