The ADS131E04 is a multi-channel, simultaneous sampling, 24-bit and 16-bit delta-sigma (ΔΣ) analog-to-digital converter (ADC) family. This article introduces the ADS131E04 features, application range, reference design circuitry, and circuit analysis to help you reduce design time. .
ADS131E04 features:
The ADS131E0x is assembled with the features required for industrial power monitoring, control, and protection applications. The ADS131E0x input can be independently and directly interfaced to a resistor divider network or a transformer to measure voltage. This input can be connected to a current transformer or Rogowski coil to measure current. With high integration and outstanding performance, the ADS131E0x family creates scalable industrial power systems with significant reduction in size, power consumption and overall cost.
Features: 8 differential current and voltage inputs, 1 dynamic performance on thousands of samples per second (ksps): 118dB, total harmonic distortion (THD): -90dB at 50Hz and 60Hz, voltage range: analog: +3V To +5V (unipolar) ±2.5V (bipolar, DC coupling allowed); Digital: +1.8V to +3.6V, low power consumption: 2mW per channel, data rate: 1, 2, 4, 8, 16 32, and 64kSPS, programmable gain (1, 2, 4, 8, and 12), serial peripheral interface (SPI) data interface, and four general purpose input and output interfaces (GPIO).
Typical applications for the ADS131E04 include: protection relays, circuit breakers, flow meters
ADS131E04 internal structure block diagram:
What is Rogers 4003?
RO4003 material can be removed with a traditional nylon brush. Roger 4003 printed board does not require special treatment before copper electroplating without electricity. The board must be processed using a traditional epoxy/glass process. Usually, it is not necessary to remove the drill hole, because the high TG resin system (280°C + [536°F]) is not prone to discoloration during the drilling process. If the PCB stain is caused by aggressive drilling operations, the resin can be removed using a standard CF4/O2 plasma cycle or a dual alkaline permanganate process.
The cooking requirements of RO4000 material are equivalent to epoxy/glass. Generally, equipment that does not cook epoxy/glass plates does not need to cook RO4003PCB. For installing epoxy/baked glass as part of the conventional process, we recommend cooking at 300°F, 250°F (121°C-149°C) for 1 to 2 hours. RO4003 does not contain flame retardants. It is understood that a board encapsulated in an infrared (IR) unit or running at a very low transmission speed can reach temperatures in excess of 700°F (371°C). The Roger 4003 printed board can start to burn at these high temperatures. Systems that still use infrared reflow devices or other equipment that can reach these high temperatures should take necessary precautions to ensure that there is no risk.
Life of life:
The high frequency mixing pressure plate can be stored indefinitely at room temperature (55-85°F, 13-30°C) and humidity. At room temperature, dielectric materials are inert under high humidity. However, when exposed to high humidity, metal coatings such as copper can be oxidized. The standard pre-cleaning of the PCB can easily remove the corrosion of the correct storage material.
RO4003 material can be processed using tools and hard metal conditions normally used for epoxy/glass. The copper foil must be removed from the guide channel to prevent smearing.
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