Precision High-Voltage Reference in SOT23

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.

Applications

* Analog-to-Digital Converters * Digital Voltmeters * Digital-to-Analog Converters * Threshold Detectors * Voltage Regulators

* +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