Overview
The REF200AU/2K5 from Texas Instruments is a dual, 100-µA current source and sink device, encapsulated in an 8-pin SOIC package. This component is designed for operation in a wide temperature range from -25°C to 85°C, making it ideal for precise current regulation and matching. The device features an input voltage range from 2.5 V to 40 V, enhancing its flexibility in various power supply conditions. The REF200AU/2K5 combines three circuit building-blocks on a single monolithic chip: two 100-µA current sources and a current mirror, all of which are dielectrically isolated to ensure complete independence.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current (Iout/Iz Max) | 0.1 | mA |
| Operating Temperature Range | -25 to 85 | °C |
| Package Type | SOIC-8 | |
| Input Voltage Range (Vin) | 2.5 to 40 | V |
| Current Accuracy | ±0.25% | |
| Compliance Voltage Range | Up to 40 V | V |
| Package Dimensions | 3.91 mm x 4.90 mm x 1.58 mm | mm |
| RoHS Compliance | Yes |
Key Features
- Dual 100-µA current sources and a current mirror on a single monolithic chip.
- Dielectrically isolated sections for complete independence.
- Current sources can be used as current sinks.
- High accuracy at low cost due to individual measurement and laser-trimming.
- Pin-strappable for currents of 50 µA, 100 µA, 200 µA, 300 µA, or 400 µA.
- Wide operating temperature range from -25°C to 85°C.
- Input voltage range from 2.5 V to 40 V.
- Compact SOIC-8 package suitable for surface-mounted technology.
- RoHS, REACH compliant, and identified with an EAR99 ECCN code.
Applications
- Education and Research: Laboratory setups requiring precise current control for analyzing semiconductor devices or studying material properties.
- Environmental Monitoring: Stable current sources for sensors detecting environmental parameters such as humidity, temperature, or air quality.
- Industrial Automation: Precision control systems or robotic arms in automated manufacturing lines.
- Renewable Energy: Control circuits in solar panel trackers or wind turbine systems to optimize energy production efficiency.
- Sensor Excitation and Biasing: Providing stable current for sensors and biasing circuitry in various applications.
- Hybrid Microcircuits and Charge-Pump Circuitry: Used in complex electronic systems requiring precise current regulation.
Q & A
- What is the REF200AU/2K5 used for?
The REF200AU/2K5 is used as a dual 100-µA current source and sink, providing precise current regulation and matching in various electronic applications.
- What is the operating temperature range of the REF200AU/2K5?
The operating temperature range is from -25°C to 85°C.
- What is the input voltage range of the REF200AU/2K5?
The input voltage range is from 2.5 V to 40 V.
- How accurate is the current output of the REF200AU/2K5?
The current output accuracy is ±0.25%.
- What package type does the REF200AU/2K5 come in?
The REF200AU/2K5 comes in an 8-pin SOIC package.
- Is the REF200AU/2K5 RoHS compliant?
Yes, the REF200AU/2K5 is RoHS compliant.
- Can the current sources be used as current sinks?
Yes, the current sources can be used equally well as current sinks.
- How are the current sources configured?
The current sources can be pin-strapped for currents of 50 µA, 100 µA, 200 µA, 300 µA, or 400 µA.
- What are some typical applications of the REF200AU/2K5?
Typical applications include education and research, environmental monitoring, industrial automation, and renewable energy systems.
- How is the device protected against reverse voltage?
The device can be protected using parallel or series diodes to limit reverse voltage and current.
