Precision Current Sources

PCS5038 Octal Precision Current Source w/Comparators

The PCS5038 combines eight precision current sources with voltage-monitoring comparators for resistive-sensor measurement.
Type
Precision Current Sources
Part
5038-201-2S
Capability
Microelectronics
Specifications

Specifications

Product specifications
Part Number 5038-201-2S
Supply Voltage Single +5V supply voltage
Reference Voltage Output 2V
Source Current Range From 100 uA to 2mA
Accuracy < ± 1.50%
Total Dose ≥ 100 krad (Si)
Package 40 leads, Ceramic quad flat pack Solder Dipped leads 0.600"Sq x 0.120"Ht

Technical specifications

Specification Value Notes
Current-source channels 8 Common family architecture only; exact ordering suffix requires confirmation.
Source-current range 100 µA to 2 mA per channel Common family architecture only; exact ordering suffix requires confirmation.
Comparator channels 8 Common family architecture only; exact ordering suffix requires confirmation.
Internal reference 2.0 V Common family architecture only; exact ordering suffix requires confirmation.

Values are subject to the conditions and ordering options in the referenced product documentation.

Product overview

The PCS5038 combines eight precision current sources with voltage-monitoring comparators for resistive-sensor measurement. A single external resistor sets the current for all source channels, and individual outputs can be paralleled where additional current is needed. Each source has a monitoring comparator, arranged in two banks with separate enable and reference inputs. An internal precision reference can support comparator-threshold generation. Turning off the current sources allows the device to function as an octal comparator. The architecture supports temperature monitoring with thermistors and resistance temperature detectors, with discrete controls for source and comparator operation.

Documentation

Documentation

Technical documents and resources

For product questions or additional technical information, contact Frontgrade https://www.frontgrade.com/contact-us-form.

More about this product

Product features

  • One external resistor sets all source currents
  • Two comparator banks with separate enables and references
  • Internal reference for comparator thresholds
  • Current-source enable supports comparator-only operation

Set sensor excitation and thresholds

Choose the external setting resistor for the required excitation current and use the internal or external voltage reference for comparator thresholds. Keep sensor voltages within the compliance limits in the datasheet.

Applications

  • Thermistor temperature monitoring
  • RTD temperature monitoring
  • Resistive-sensor interfaces
Product support

Discuss your application

Contact Frontgrade to discuss PCS5038 Octal Precision Current Source w/Comparators and the requirements of your application.