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MAX6325

MAX6325

1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References

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Overview

Description

The MAX6325/MAX6341/MAX6350 are low-noise, precision voltage references with extremely low, 0.5ppm/°C typical temperature coefficients and excellent, ±0.02% initial accuracy. These devices feature buried-zener technology for lowest noise performance. Load-regulation specifications are guaranteed for source and sink currents up to 15mA. Excellent line and load regulation and low output impedance at high frequencies make them ideal for high-resolution data-conversion systems up to 16 bits.

The MAX6325 is set for a 2.500V output, the MAX6341 is set for a 4.096V output, and the MAX6350 is set for a 5.000V output. All three provide for the option of external trimming and noise reduction.
MAX6325, MAX6341, MAX6350: Typical Operating Circuit MAX6325, MAX6341, MAX6350: Typical Operating Circuit Enlarge+

Key Features

  • Ultra-Low, 1ppm/°C Max Tempco
  • Very Low, 1.5µVp-p Noise (0.1Hz to 10Hz) (MAX6325)
  • ±0.02% Initial Accuracy (MAX6350)
  • ±15mA Output Source and Sink Current
  • Low, 18mW Power Consumption (MAX6325)
  • Industry-Standard Pinout
  • Optional Noise Reduction and Voltage Trim
  • Excellent Transient Response
  • 8-Pin SO Package Available
  • Low, 30ppm/1000h Long-Term Stability
  • Stable for All Capacitive Loads

Applications/Uses

  • Automated Test Equipment (ATE)
  • Digital Voltmeters
  • High-Accuracy Industrial and Process Control
  • High-Accuracy Reference Standard
  • High-Resolution A/D and D/A Converters
  • Precision Current Sources

Parametric Specs

Part NumberVOUT
(V)		Temp. Coeff.
(ppm/°C)		Initial Accuracy
(% max)		Calibration MethodISUPPLY
(µA)		VSUPPLY
(V)		VSUPPLY
(V)		Noise 0.1Hz to 10Hz
(µVpp)		Oper. Temp.
(°C)		Package/PinsBudgetary
Price
max@ +25°CmaxminmaxtypSee Notes
MAX6325 2.510.04Trim30008361.5
-55 to +125
-40 to +85
0 to +70
CDIP/8
PDIP/8
SOIC (N)/8
$10.02 @1k
MAX6341 4.0960.0232002.4
PDIP/8
SOIC (N)/8
$8.87 @1k
MAX6350 50.0233003
CDIP/8
PDIP/8
SOIC (N)/8
$8.87 @1k
See All Voltage References (171)
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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

Technical Documents

Tutorial 5066 When Is Calibration Important?
Tutorial 4993 Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
Tutorial 4300 Calculating the Error Budget in Precision Digital-to-Analog Converter (DAC) Applications
App Note 2879 Selecting the Optimum Voltage Reference
Tutorial 722 3V/5V DACs Support Intelligent Current Loop
Tutorial 719 Understanding Voltage-Reference Topologies and Specifications

Quality and Environmental Data

Product Reliability Reports: MAX6325.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

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Related Resources

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MAX6078A
Low-Power, Low-Drift, Low-Noise Voltage Reference

  • ±0.04% Initial Accuracy
  • 10ppm/°C (Max) Temperature Drift
  • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V

MAX6078B
Low-Power, Low-Drift, Low-Noise Voltage Reference

  • ±0.04% Initial Accuracy
  • 10ppm/°C (Max) Temperature Drift
  • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V

Technical Docs