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REF191

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 protectionApplication·Portable instruments·A/D and D/A conv...

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SeekIC No. : 004475946 Detail

REF191: 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`...

REF191 Data Sheet

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Part Number:
REF191
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/27

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Product Details

Description



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




Application

·Portable instruments
·A/D and D/A converters
·Smart sensors
·Solar-powered applications
·Loop-current-powered instruments




Pinout

Connection Diagram

REF191 Diagram




Specifications

Parameter1
Rating
Supply Voltage
Output to GND
Output to GND
Short-Circuit Duration Storage Temperature Range PDIP, SOIC Package
Operating Temperature Range REF19x
Junction Temperature Range PDIP, SOIC Package
Lead Temperature Range (Soldering 60 sec)
−0.3 V, +18 V
−0.3 V, VS + 0.3 V
Indefinite
−65°C to +150°C
−40°C to +85°C
−65°C to +150°C
300°C
1 Absolute maximum ratings apply to both DICE and packaged parts, unless otherwise noted.

Vout 2.048
Initial Accuracy (%) 0.1
Ref Out TC (ppm/C) 2ppm/C
Supply Voltage Range (V) +2.3 to +15
Supply Current 45A
Ref Output Current (mA) 30mA
0.1-10 Hz Noise (V p-p) 20V p-p
Temp Range(s) -40 to +85
Package DIP,SOIC
Reference Type Series-Low Dropout





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 A of supply current. In sleep mode, which is enabled by applying a low TTL or CMOS level to the SLEEP pin, the output of REF191 is turned off and supply current is further reduced to less than 15 A.

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 package; the PDIP and TSSOP packages are available only in the lowest electrical grade. Products are also available in die form.



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




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