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REF1933AIDDCR The Texas Instruments REF1933AIDDCR is a 3.3V dual-output voltage reference offering excellent temperature stability and high accuracy. It features two outputs, VREF and VREF/2, for versatile use in single-supply systems.
Mfr Part #:

REF1933AIDDCR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments REF1933AIDDCR is a 3.3V dual-output voltage reference offering excellent temperature stability and high accuracy. It features two outputs, VREF and VREF/2, for versatile use in single-supply systems.
✓ Total Stock: 21,960 pcs
$ Price Range: $1.20

REF1933AIDDCR Available from 4 distributors

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Romaks Technologies ✓
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16,436 pcs
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16436 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
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2,734 pcs
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2734 pcs On Request 1 On Request On Request 24+ On Request On Request
Xingangxin ✓
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1,407 pcs
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1407 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
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1,383 pcs
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1383 pcs On Request 1 On Request On Request 19+20+ On Request On Request
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REF1933AIDDCR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Operating Temperature
Output Current
Package Quantity
Quiescent Current
Tape & Reel
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REF1933AIDDCR Description

Short technical summary and product information.

The Texas Instruments REF1933AIDDCR is a low-drift, low-power, dual-output voltage reference designed for applications requiring stable voltage references. It provides a primary reference voltage (VREF) and a secondary VREF/2 output, making it convenient for single-supply systems, particularly for biasing analog-to-digital converter (ADC) input ranges.

 

Key electrical specifications include a 3.3V output voltage, excellent temperature drift performance of 25 ppm/°C maximum over the -40°C to 125°C operating range, and high initial accuracy of ±0.1% maximum. The device also boasts tight tracking accuracy between VREF and VBIAS over temperature, low dropout voltage of 10 mV, and a high output current capability of ±20 mA. Its low quiescent current of 360 µA contributes to power efficiency.

 

Packaged in a microsize SOT-23-5 (DDC) package, the REF1933AIDDCR is suitable for space-constrained designs. It operates across a wide temperature range of -40°C to 125°C. The device is supplied on tape and reel, with a standard package quantity of 3,000 units.

REF1933AIDDCR Quick Information

Product Type: Voltage Reference
Series: REF1933
Canonical Name: Texas Instruments REF1933AIDDCR Voltage Reference
Subcategory: Series Voltage References

REF1933AIDDCR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

REF1933AIDDCR Estimated Pricing

Qty Low High
1+ $1.20 $1.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

REF1933AIDDCR Features

  • Dual output VREF and VREF/2.
  • Excellent temperature drift performance.
  • High initial accuracy of ±0.1%.
  • Low dropout voltage of 10 mV.
  • Microsize SOT-23-5 package.

REF1933AIDDCR Applications

  • Ideal for single-supply systems.
  • Biasing analog-to-digital converters.
  • Provides stable reference voltage.
  • Suitable for space-constrained designs.

REF1933AIDDCR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the REF1933AIDDCR?

The REF1933AIDDCR provides a nominal 3.3V output at VREF and 1.65V at VREF/2.

What is the initial accuracy of the REF1933AIDDCR?

The initial accuracy is ±0.1% max.

What is the temperature drift of the REF1933AIDDCR?

The temperature drift is 25 ppm/°C max from -40°C to 125°C.

What is the maximum output current of the REF1933AIDDCR?

The maximum output current is ±20 mA.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What package is the REF1933AIDDCR available in?

The REF1933AIDDCR is available in a SOT-23-THN package.

What is the tracking accuracy between VREF and VBIAS?

The tracking accuracy is 6 ppm/°C max from -40°C to 85°C and 7 ppm/°C max from -40°C to 125°C.

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