Maxim > Products > Voltage References > MAX6129

MAX6129

Ultra-Low-Power Series Voltage Reference

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX6129 micropower, low-dropout bandgap voltage reference combines ultra-low supply current and low drift in a miniature 5-pin SOT23 surface-mount package that uses 70% less board space than comparable devices in an SO package. This series-mode voltage reference sources up to 4mA and sinks up to 1mA of load current. A wide 2.5V to 12.6V supply range, ultra-low 5.25µA (max) supply current, and a low 200mV dropout voltage make these devices ideal for battery-operated systems.

An initial accuracy of 0.4% and a 40ppm/°C (max) temperature coefficient make the MAX6129 suitable for precision applications. Additionally, an internal compensation capacitor eliminates the need for an external compensation capacitor and ensures stability with load capacitances up to 10µF.

The MAX6129 provides six output voltages of 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6129 is available in a 5-pin SOT23 package and in die form.

Data Sheet

Download	Rev 2	(PDF, 980kB)
E-Mail

Key Features

Ultra-Low 5.25µA (max) Supply Current
4mA Output Source Current
1mA Output Sink Current
±0.4% (max) Initial Accuracy
40ppm/°C (max) Temperature Coefficient
2.5V to 12.6V Supply Range
Low 200mV Dropout
Stable with Capacitive Loads Up to 10µF
No External Capacitors Required
Miniature 5-Pin SOT23 Package

Applications/Uses

A/D and D/A Converters
Battery-Powered Systems
Handheld Instruments
Precision Power Supplies

Key Specifications:

Voltage References

Part Number

V_OUT
(V)

Temp. Coeff.
(ppm/°C)

Initial Accuracy
(% max)

I_SUPPLY
(µA)

V_SUPPLY
(V)

Noise 0.1Hz to 10Hz
(µVpp)

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

max

@ +25°C

max

min

max

typ

max w/pins

See Notes

MAX6129A

2.048

2.5

3.3

4.096

0.4

2.7

12.6

-40 to +85

SOT/5

$1.35 @1k

MAX6129B

100

SOT/5

$0.55 @1k

See All Voltage References (168)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

MAX6129: Pin Configuration

Pin Configuration

Application Notes

Application Note 4563		Dynamic Siphon Steals Current from USB Port
Tutorial 4685		How Continuous Positive Airway Pressure (CPAP) Respiratory Ventilation Systems Function

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:	MAX6129.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6129AEUK21+			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
MAX6129AEUK21+T			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
MAX6129AEUK21-T			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
MAX6129AEUK25+			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
MAX6129AEUK25+T			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
MAX6129AEUK25-T			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
MAX6129AEUK30			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
MAX6129AEUK30+			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
MAX6129AEUK30+T			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
MAX6129AEUK30-T			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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6129AEUK33+			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
MAX6129AEUK33+T			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
MAX6129AEUK33-T			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
MAX6129AEUK41+T			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
MAX6129AEUK41-T			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
MAX6129AEUK50+T			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
MAX6129AEUK50-T			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
MAX6129BEUK21			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
MAX6129BEUK21+			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
MAX6129BEUK21+T			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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6129BEUK21-T			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
MAX6129BEUK25+			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
MAX6129BEUK25+T			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
MAX6129BEUK25-T			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
MAX6129BEUK30+			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
MAX6129BEUK30+T			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
MAX6129BEUK30-T			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
MAX6129BEUK33+			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
MAX6129BEUK33+T			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
MAX6129BEUK33-T			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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6129BEUK41			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
MAX6129BEUK41+			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
MAX6129BEUK41+T			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
MAX6129BEUK41-T			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
MAX6129BEUK50			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
MAX6129BEUK50+			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
MAX6129BEUK50+T			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
MAX6129BEUK50-T			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

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

Similar Products by Function

MAX6018	Precision, Micropower, 1.8V Supply, Low-Dropout, SOT23 Voltage Reference
See All Voltage References (168 Products)

Similar Products by Application

Continuous Positive Airway Pressure (CPAP) > Voltage Reference (VREF)

Digital Stethoscopes > Voltage Reference (VREF)

More Information

Topmark Coding	MAX6129
New Product Press Release	[ 2002-09-10 ]

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-2507 Rev 2; 2005-03-14
This page last modified: 2007-07-16