MAX6043

Precision High-Voltage Reference in SOT23


Please check latest availability status for a specific part variant.

Description

The MAX6043 precision voltage reference provides accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V reference voltages from up to +40V input voltages. The MAX6043 features a proprietary temperature coefficient curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low temperature coefficient of 15ppm/°C (max) and excellent initial accuracy of 0.05% (max). Low temperature drift and low noise make the MAX6043 ideal for use with high-resolution A/D or D/A converters.

The MAX6043 draws 320µA of supply current and sources 10mA or sinks 0.6mA of load current. The MAX6043 uses bandgap technology for low-noise performance and excellent accuracy. The MAX6043 does not require an output bypass capacitor for stability, and is stable with capacitive loads up to 100µF. Eliminating the output bypass capacitor saves valuable board area in space-critical applications. The supply-independent, low supply current makes the MAX6043 ideal for battery-operated, high-performance systems.

The MAX6043 is available in a 6-pin SOT23 package and operates over the automotive (-40°C to +125°C) temperature range.
MAX6043: Typical Operating Circuit MAX6043: Typical Operating Circuit Enlarge+

Key Features

  • +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output Voltages
  • Excellent Temperature Stability: 15ppm/°C (max)
  • Tight Initial Accuracy: 0.05% (max)
  • Tiny SOT23 Package
  • Wide +4.5V to +40V Supply Voltage Range
  • Low Noise: 4µVP-P (typ at 2.5V Output)
  • Short-Circuit Protected
  • Wide Operating Temperature Range -40°C to +125°C
  • Stable with Capacitive Loads from 0 to 100µF
  • No External Capacitors Required for Stability

Applications/Uses

  • Analog-to-Digital Converters
  • Digital Voltmeters
  • Digital-to-Analog Converters
  • Threshold Detectors
  • Voltage Regulators
Part NumberVOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
ISUPPLY
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Noise 0.1Hz to 10Hz
(µVpp)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
max@ +25°CmaxminmaxtypSee Notes
MAX6043A 
2.5
3.3
4.096
5
10
150.066504.5404-40 to +125
SOIC(N)/8
-
MAX6043B 200.1
SOIC(N)/8
$1.24 @1k
MAX6043C 650.5
SOIC(N)/8
$0.54 @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.

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.

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Related Resources


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