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Precise Electronically Adjustable Voltage Reference Enables Automated Factory Trimming of Devices Needing Voltage Adjustment Can be Adjusted to Within ±1mV Wide Adjustable Output Voltage Range Within 300mV of the Supply Rails Low Temperature Coefficient ±1mA of Output-Current Drive NV Memory Stores the Voltage Indefinitely Output Short-Circuit Protection Low Cost Low Power Consumption 2.4V to 3.6V Single-Supply Operation Small 5-Lead SOT23 Package
Precise Electronically Adjustable Voltage Reference Enables Automated Factory Trimming of Devices Needing Voltage Adjustment Can be Adjusted to Within ±1mV Wide Adjustable Output Voltage Range Within 300mV of the Supply Rails Low Temperature Coefficient ±1mA of Output-Current Drive NV Memory Stores the Voltage Indefinitely Output Short-Circuit Protection Low Cost Low Power Consumption 2.4V to 3.6V Single-Supply Operation Small 5-Lead SOT23 Package
DS4303, DS4303K
Electronically Programmable Voltage Reference
Nonvolatile Sample and Infinite-Hold Adjustable Voltage Reference for Automated Factory Calibration
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The DS4303 is a nonvolatile (NV) electronically programmable voltage reference. The reference voltage is programmed in-circuit during factory calibration/programming. Programming the reference voltage, VOUT, is as simple as applying the desired voltage on VIN and toggling the adjust pin (ADJ-bar) to lock the VOUT voltage level indefinitely, even if the device is power cycled. The DS4303 replaces current cumbersome factory adjustment arrangements with a low-cost solution that can be adjusted using automated techniques. In addition, the DS4303 has the ability to be readjusted after the unit has been fully assembled and tested. This results in a much more flexible manufacturing arrangement, lower inventory costs, and a quicker time-to-market.
Key Features
Applications/Uses
- Bias Adjusting
- Factory-Calibrated Equipment
- Offset Nulling
- Power Amplifiers
- Power-Supply Calibration
- Pressure Bridges
- Threshold Setting
Parametric specs for Voltage References
| VOUT (V) | Programmable (within 300mV of Rails) |
| Temp. Coeff. (ppm/°C) (max) | 30 |
| ISUPPLY (µA) (max) | 1600 |
| Initial Accuracy (% max) (@ +25°C) | 0.03 |
| Calibration Method | E2CRef. |
| VSUPPLY (V) (min) | 2.4 |
| VSUPPLY (V) (max) | 3.6 |
| Noise 0.1Hz to 10Hz (µVpp) (typ) | 200 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | SOT23/5 |
| Budgetary Price (See Notes) | $1.96 @1k |
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Parameters
Parametric specs for Voltage References
| VOUT (V) | Programmable (within 300mV of Rails) |
| Temp. Coeff. (ppm/°C) (max) | 30 |
| ISUPPLY (µA) (max) | 1600 |
| Initial Accuracy (% max) (@ +25°C) | 0.03 |
| Calibration Method | E2CRef. |
| VSUPPLY (V) (min) | 2.4 |
| VSUPPLY (V) (max) | 3.6 |
| Noise 0.1Hz to 10Hz (µVpp) (typ) | 200 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | SOT23/5 |
| Budgetary Price (See Notes) | $1.96 @1k |
Key Features
Applications/Uses
- Bias Adjusting
- Factory-Calibrated Equipment
- Offset Nulling
- Power Amplifiers
- Power-Supply Calibration
- Pressure Bridges
- Threshold Setting
Description
The DS4303 is a nonvolatile (NV) electronically programmable voltage reference. The reference voltage is programmed in-circuit during factory calibration/programming. Programming the reference voltage, VOUT, is as simple as applying the desired voltage on VIN and toggling the adjust pin (ADJ-bar) to lock the VOUT voltage level indefinitely, even if the device is power cycled. The DS4303 replaces current cumbersome factory adjustment arrangements with a low-cost solution that can be adjusted using automated techniques. In addition, the DS4303 has the ability to be readjusted after the unit has been fully assembled and tested. This results in a much more flexible manufacturing arrangement, lower inventory costs, and a quicker time-to-market.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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