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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 308kB) Download   E-Mail

Description

The DS4305 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 DS4305 replaces current cumbersome factory adjustment arrangements with a low-cost solution that can be adjusted using automated techniques. In addition, the DS4305 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. DS4305K EVALUATION BOARD To facilitate evaluation of the DS4305 in its tiny SOT23 package, it is available mounted on a small (16mm x 10mm) evaluation board. The board includes a 0.1µF decoupling capacitor on the supply input. The part number for the evaluation board is DS4305K and it available as a free sample. Free sample of DS4305K evaluation board (with DS4305 and capacitor mounted). Free sample of DS4305 (unmounted IC).

Key Features		Applications/Uses
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		Bias Adjusting Factory-Calibrated Equipment Offset Nulling Power Amps Power Supply Calibration Pressure Bridges Threshold Setting

Diagram

Typical Operating Circuit

Application Notes

Application Note 3617: Using the DS4303 to Bias LDMOS RF Power Amps - DS4305 Application Note 3748: How to Create a Precision Current Source Using a DS4303 or DS4305 - DS4305 Application Note 4624: Nonvolatile STANDBY/ON Switch - DS4305

Design Guides

Digital Potentiometers (PDF)

Reliability Reports

Reliability Report: DS4305.pdf Request Reliability Report for: DS4305K

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-2 of 2

DS4305	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS4305R+T&R			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS4305R/T&R			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

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Technical Documents

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits