Products Mentioned

MAX125 Production
The MAX125/MAX126 are high-speed, multichannel, 14-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 14...
Datasheet
MAX125 on Analog.com

MAX16006 Production
The MAX16000–MAX16007 are low-voltage, quad-/hex-/octal-voltage µP supervisors in small TQFN and TSSOP packages. These devices provide supervisory functions...
Datasheet
MAX16006 on Analog.com

MAX6725 Production
The MAX6715-MAX6729 are ultra-low-voltage microprocessor (µP) supervisory circuits designed to monitor two or three system power-supply voltages. These...
Datasheet
MAX6725 on Analog.com

MAX13487E Production
The MAX13487E/MAX13488E +5V, half-duplex, ±15kV ESD-protected RS-485/RS-422-compatible transceivers feature one driver and one receiver. The MAX13487E...
Datasheet
MAX13487E on Analog.com

MAX14841E Production
The MAX14840E/MAX14841E are +3.3V ESD-protected transceivers intended for half-duplex RS-485 communication up to 40Mbps. These transceivers are optimized...
Datasheet
MAX14841E on Analog.com

DS1338Z Production
The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred...
Datasheet
DS1338Z on Analog.com

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How Signal-Chain ICs Form Foundation for Smart-Grid Equipment

How Signal-Chain ICs Form Foundation for Smart-Grid Equipment

ADIApproved
1 minute read time.

One of the top smart-grid equipment suppliers in China, Beijing Sifang Automation develops solutions for power system automation, relay protection, power system security and stability control, HVDC transmission control, dispatching automation, distribution automation, power simulation, and rail transportation for electric power system and related industries, including petrochemical, coal, and metallurgy.

The company's power-grid protection products have circuits with low, medium, and high voltages. Since the equipment is expected to operate continuously for up to 15 years (with some technology upgrades), the equipment requires high-quality semiconductors with long lifecycles. Performance and cost of the semiconductors are also important.

Sifang has been working with Maxim for more than 15 years. Inside its power-grid protection solutions is an array of Maxim signal-chain products:

  • MAX125 high-speed, multichannel, 14-bit data acquisition system with simultaneous track/holds. The system features a simultaneous-sampling analog-to-digital converter (ADC) and a high-speed parallel digital signal processing (DSP) interface.
  • MAX16006 low-voltage, quad-/hex-/octal-voltage microprocessor supervisor for complex multivoltage systems. This device has a reset output that asserts when any of the voltages that are monitored fall below their respective thresholds or when the manual reset input is asserted.
  • MAX6725 dual/triple ultra-low-voltage SOT23 microprocessor supervisory circuit for monitoring two- or three-system power-supply voltages. Compared to using separate ICs or discrete components, this device improves system reliability while reducing size.
  • MAX13487E +5V, half-duplex RS-485/RS-422-compatible transceiver. This transceiver features reduced slew-rate drivers that minimize electromagnetic interference (EMI) and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps.
  • MAX14841E low-voltage, high-speed, half-duplex RS-485 transceiver. This transceiver is optimized to deliver high speeds over extended cable runs while maximizing noise tolerance. Its high electrostatic discharge (ESD) protection helps increase equipment uptime.
  • DS1338Z I2C real-time clock with 56-Byte NV SRAM. Low-power operation extends battery backup runtime, and a surface-mount package with integrated crystal saves board space while simplifying the design.

Said Mr. Chen Qiurong, senior manager of Hardware R&D at the company: "We benefit from the quality of the signal-chain products as well as Maxim's reliability as a supplier."

Learn more about the company and its evaluation of Maxim signal-chain ICs by reading the Beijing Sifang Automation customer testimonial.


Beijing Sifang Automation is one of China's top smart-grid equipment suppliers.

Tags: DS1338Z power management How Signal-Chain ICs Form Foundation for Smart-Grid Equipment Multiplexed A/D Converters MAX125 Show More