Summary of Goal Semiconductor Introduces a High Voltage, Quad, 9-bit Voltage/Current DAC
Goal Semiconductor launched the HVDAC 200, a high-voltage, 4-channel D/A converter capable of driving outputs over 200V. This 9-bit serially configurable device supports industrial, telecom, and medical applications by replacing discrete components like transistors and op-amps with a single IC. It features SPI control, daisy-chaining capabilities, internal temperature monitoring, and adjustable current/voltage ranges via internal or external resistors.
Parts used in the HVDAC 200 Project:
- HVDAC 200 integrated circuit
- Low voltage reference input
- Internal 600K Ohm resistor
- External resistor (optional)
- SPI interface
- Hardware reset mechanism
- Temperature sensor
- Over-current protection circuitry
Montreal, (PRWEB) May 14, 2005
Goal Semiconductor today launched the HVDAC 200 a high voltage, 4-channel, 9-bit, serially configurable voltage/current D/A converter. Using an advanced high voltage silicon process, the HVDAC is capable of driving outputs in excess of 200V.
The HVDAC targets a range of applications in the industrial, telecom, automotive, medical/scientific and consumer market segments that require high voltage control. These include drivers or level translation for optical switching and control, projection systems, printers, transducers, RF bias generation and other applications in which a programmable high voltage or current source is needed.
Technical description
The HVDAC is based on a 9-bit current DAC and can operate in either current or voltage mode. The output range of the DAC outputs is controlled by a low voltage reference input and each channel includes a 5-bit output offset adjustment. The maximum output range of the HVDAC can be adjusted from 20V to 200V.
The HVDAC can be run in one of two maximum output current ranges: 500µA and 5mA. An internal 600K Ohm resistor at the output of each channel can be used to set the output voltage range. The user can bypass this internal resistor and set the range via an external resistor as well. Each channel also includes over-current protection and the HVDAC incorporates a temperature sensor that can monitor device temperature and be used as a shutdown trigger in the case of overheating.
The HVDAC is controlled serially via an SPI interface that includes a signal retransmission feature so that users can daisy chain multiple devices. The device also includes a hardware reset that clears the internal registers.
Benefits of using the HVDAC 200
The HVDAC 200s high level of integration makes it easy to replace circuitry that has traditionally required a plethora of discrete components made up of high voltage transistors, op amps, D/A converters and digital logic with a single IC. It, therefore, responds to the ever-increasing market pressure to lower costs, reduce component count and simplify design and production of electronic systems.
About Goal Semiconductor
Goal Semiconductor is a privately held, fabless semiconductor company that supplies mixed-signal integrated circuits for the embedded data acquisition market. Goal’s products are sold worldwide by our highly technical network of manufacturers’ representatives and distributors. Founded in 1992, the company is headquartered in Montreal, Canada.
The HVDAC 200 is currently sampling. Volume pricing is US $ 3.00.
Sales Contact:
- What is the maximum output voltage of the HVDAC 200?
The maximum output range can be adjusted from 20V to 200V. - How many channels does the HVDAC 200 have?
The device features four channels. - Can the HVDAC 200 operate in both current and voltage modes?
Yes, it can operate in either current or voltage mode. - How is the HVDAC 200 controlled?
It is controlled serially via an SPI interface that includes a signal retransmission feature. - Does the HVDAC 200 include over-current protection?
Yes, each channel includes over-current protection. - What is the purpose of the internal temperature sensor?
The sensor monitors device temperature and can be used as a shutdown trigger in case of overheating. - How can the output voltage range be set using resistors?
Users can use the internal 600K Ohm resistor or bypass it to set the range via an external resistor. - What types of applications target the HVDAC 200?
Applications include optical switching drivers, projection systems, printers, transducers, and RF bias generation.
