Shenzhen Mingjiada Electronics Co., Ltd. has TI REF200 in stock. These are genuine, original products with ample inventory available for quick shipment. We accept bulk inquiries and sample requests. This dual-channel constant-current source chip is the preferred choice for industrial measurement and control, sensor excitation, and analog bias circuits. The REF200 is a dual-channel, independent 100μA current source/sink device introduced by Texas Instruments. It features two built-in constant-current sources and a current mirror module, with a dielectric isolation design that ensures channel independence. The device is laser-trimmed for stable current accuracy and is widely used in precision analog circuit design, signal conditioning, sensor excitation, and other applications.
REF200 Product Overview
The TI REF200 is a dual-channel 100 μA constant-current source chip. As a two-terminal current device, it can function as either a current source or a current sink; the device is fully floating, requiring no fixed power supply or ground connection, offering flexible usage. The chip integrates two independent constant-current sources and a current mirror circuit. The channels are electrically isolated from one another, ensuring no mutual interference. Factory laser calibration guarantees initial current accuracy and maintains stable output across a wide operating voltage range, making it suitable for low-power, high-precision analog bias and low-current reference applications. The mainstream package is SOIC-8 (REF200AU), suitable for surface-mount mass production. Shenzhen Mingjiada Electronics specializes in the distribution of genuine TI products in stock. We offer the REF200 in stock and support BOM fulfillment and obsolete inventory buyback.
REF200 Key Features
1. Dual-channel independent 100 μA constant-current output, suitable for use as both a current source and a current sink
2. Fully floating architecture; no power or ground pins required, allowing for flexible layout
3. High precision: Output current of 100 μA ±0.5%
4. Low temperature drift: Temperature coefficient of ±25 ppm/°C
5. Wide operating voltage range: 2.5 V to 40 V
6. Built-in current mirror circuit for easy current replication and loop design
7. Optically isolated; two independent channels minimize crosstalk
8. Laser-trimmed for excellent consistency, suitable for mass production
9. SOIC-8 package with industrial-grade reliability, compatible with SMT assembly
Specifications
- Brand: TI (Texas Instruments)
- Number of channels: 2 channels
- Nominal Output Current: 100 μA
- Initial Accuracy: ±0.5%
- Temperature Coefficient: ±25 ppm/°C
- Operating Voltage Range: 2.5 V to 40 V
- Package: SOIC-8
- Functions: Dual constant-current source / sink with built-in current mirror
- Device Type: Precision current reference chip
REF200 Main Applications
- Sensor excitation circuits (constant-current power supply for pressure, temperature, and photoelectric sensors)
- Analog signal bias circuits, DC offset current loops
- Low-voltage reference circuit construction, charge pump circuits
- Mixed-signal integrated circuits, instrumentation amplifier bias
- Industrial measurement instruments, data acquisition boards
- Precision op-amp and ADC front-end conditioning circuits
- Portable testing equipment and process control modules
Purchasing Information
Shenzhen Mingjiada Electronics Co., Ltd. maintains a long-term stock of genuine TI REF200 chips. We also purchase surplus factory stock and surplus electronic components, offer one-stop BOM fulfillment, and provide samples and bulk pricing. With a stable supply chain, we can coordinate shipments to meet customer delivery schedules.
Contact Mingjiada Electronics:
Website: www.integrated-ic.com
Phone: +86 13410018555
Email: sales@hkmjd.com
Address: 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen
Người liên hệ: Mr. Sales Manager
Tel: 86-13410018555
Fax: 86-0755-83957753
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