The DS4305R/T&R 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 (active-low ADJ) to lock the VOUT voltage level indefinitely, even if the device is power cycled. The DS4305R/T&R replaces current cumbersome factory adjustment arrangements with a low-cost solution that can be adjusted using automated techniques. In addition, the DS4305R/T&R 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.
Feature
- Precise Electronically Adjustable Voltage Reference
- Enables Automated Factory Trimming of Devices Needing Voltage Adjustment
- Can be Adjusted to Within ±1.5mV
- 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
- 4.0V to 5.5V Single-Supply Operation
- Small 5-Lead SOT23 Package
- -40°C to +125°C Temperature Operation
- DS4305K Evaluation Kit is Available
Applications
- Bias Adjusting
- Factory-Calibrated Equipment
- Offset Nulling
- Power Amps
- Power Supply Calibration
- Pressure Bridges
- Threshold Setting
