REF191ESZ Analog Devices Inc, REF191ESZ Datasheet - Page 2

• Manufacturer Part Number: REF191ESZ
• Description: IC VOLT REF LDO 2.048V 8SOIC
• Manufacturer: Analog Devices Inc
• Series: REF19r
• Type: Voltage Referencer

Specifications of REF191ESZ

• Temperature Coefficient: 5ppm/°C
• Reference Type: Series
• Voltage - Output: 2.048V
• Tolerance: ±2mV
• Voltage - Input: 3 ~ 15 V
• Number Of Channels: 1
• Current - Quiescent: 45µA
• Current - Output: 30mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Topology: Series
• Input Voltage: 3V To 15V
• Reference Voltage: 2.048V
• Reference Voltage Tolerance: 2mV
• Voltage Reference Case Style: SOIC
• No. Of Pins: 8
• Current, Output: 30 mA
• Current, Supply: 45 μA
• Package Type: SOIC-8
• Regulation, Line: 5 ppm/V
• Regulation, Load: 5 ppm/mA
• Regulator Type: Low Dropout
• Resistance, Thermal, Junction To Case: 43 °C/W
• Temperature, Operating, Range: -40 to +85 °C
• Voltage, Dropout: 1.25 V
• Voltage, Noise: 20 μVp-p
• Voltage, Output: 2.048 V
• Voltage, Supply: 3.3 V
• Fixed / Adjust / Prog: Precision
• Output Voltage (max): 2.048V
• Reference Voltage Accuracy (max): 2
• Line Regulation: 4ppm/V
• Load Regulation: 10ppm/mA
• Input Voltage (max): 18V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

REF19x Series
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Test Pins ............................................................................................. 1
Revision History ............................................................................... 3
Specifications ..................................................................................... 4
Electrical Characteristics—REF191 @ T
Electrical Characteristics—REF191 @ −40°C ≤ +85°C ........... 5
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—REF193 @ T
Electrical Characteristics—REF194 @ T
Electrical Characteristics—REF194 @ −40°C ≤ T
Electrical Characteristics—REF194 @ −40°C ≤ T
Electrical Characteristics—REF195 @ T
Electrical Characteristics—REF195 @ −40°C ≤ T
Electrical Characteristics—REF195 @ −40°C ≤ T
Electrical Characteristics—REF196 @ T
Electrical Characteristics—REF196 @ −40°C ≤ T
......................................................................................................... 7
......................................................................................................... 7
......................................................................................................... 8
......................................................................................................... 9
....................................................................................................... 10
....................................................................................................... 10
....................................................................................................... 11
....................................................................................................... 12
....................................................................................................... 13
A
≤ +125°C ................................................................... 6
A
A
A
A
A
A
A
= 25°C .................... 4
= 25°C .................... 6
= 25°C .................... 8
≤ −40°C ≤ +125°C
= 25°C .................... 9
= 25°C .................. 11
= 25°C .................. 12
A
A
A
A
A
A
A
A
≤ +85°C
≤ +125°C
≤ +85°C
≤ +85°C
≤ +125°C
≤ +85°C
≤ +125°C
≤ +85°C
Rev. K | Page 2 of 28
Absolute Maximum Ratings ......................................................... 16
Typical Performance Characteristics ........................................... 17
Applications Information .............................................................. 20
Outline Dimensions ....................................................................... 26
Electrical Characteristics—REF196 @ −40°C ≤ T
....................................................................................................... 13
Electrical Characteristics—REF198 @ T
Electrical Characteristics—REF198 @ −40°C ≤ T
....................................................................................................... 14
Electrical Characteristics—REF198 @ −40°C ≤ T
....................................................................................................... 15
Thermal Resistance .................................................................... 16
ESD Caution................................................................................ 16
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
Ordering Guide .......................................................................... 27
A
= 25°C .................. 14
A
A
A
≤ +125°C
≤ +85°C
≤ +125°C